updates: pshell import, angle-scans, elog

- pshell import: fix units and data scaling. - pshell import: support new multi-region scans. - angle scans: add trim function. - angle scans: update import_tpi_scan function. - angle scans: fix scales of check waves in normalization. - area display: new cursor mode for background selection. - elog: bugfixes (attachment list, check existing logbook).
updates: scaling of pshell data, matrix preview, elog panel
2017-07-04 11:06:49 +02:00 · 2017-02-02 15:31:13 +01:00 · 2016-10-14 16:56:20 +02:00 · 2016-09-23 19:11:07 +02:00 · 2016-09-22 14:15:09 +02:00 · 2016-08-17 12:12:52 +02:00
29 changed files with 5995 additions and 3384 deletions
--- a/.gitattributes
+++ b/.gitattributes
@ -0,0 +1,20 @@
+.git* export-ignore
+#*.ipf diff=igorpro
+# git diff --check should output something useful
+*.ipf whitespace=indent-with-non-tab,tabwidth=4
+# mark files as binary
+# you can also add -delta if you regularly
+# commit large files of these types
+*.ibw binary
+*.xop binary
+*.pxp binary
+*.pxt binary
+*.uxp binary
+*.uxt binary
+*.ihf binary
+*.ifn binary
+*.ift binary
+
+# automatic end of line normalization
+*.ipf eol=lf
+
--- a/.gitignore
+++ b/.gitignore
@ -4,3 +4,4 @@
 *.ipfT*
 doc/html/*
 doc/latex/*
+
--- a/README.md
+++ b/README.md
@ -11,16 +11,20 @@ PEARL Procedures should be installed according to the regular Igor Pro guideline

 - Make a `pearl-procs` directory in your private or shared `User Procedures` folder, and copy the PEARL Procedures distribution there.
 - Create shortcuts of the `pearl-arpes.ipf` and `pearl-menu.ipf` files, and move them to the `Igor Procedures` folder next to your `User Procedures` folder.
- Find the `HDF5.XOP` extension in the `Igor Pro Folder` under `More Extensions/File Loaders`, create a shortcut, and move the shortcut to the `Igor Extensions` folder next to your `User Procedures` folder.
+- Find the `HDF5.XOP` (`HDF5-64.xop` for Igor 7 64-bit) extension in the `Igor Pro Folder` under `More Extensions/File Loaders` (`More Extensions (64-bit)/File Loaders`), create a shortcut, and move the shortcut to the `Igor Extensions` folder next to your `User Procedures` folder.
 - Find the `HDF5 Help.ihf` next to `HDF5.XOP`, create a shortcut, and move the shortcut to the `Igor Help Files` folder next to your `User Procedures` folder.

+PEARL Procedures has been tested under Igor Pro version 6.37 (32-bit). Older versions prior to 6.36 are not be compatible. Please update to the latest Igor Pro 6 version before reporting any problems.
+
+PEARL Procedures compiles under Igor 7.00. Some features, in particular 3D graphics, may not work properly.
+

 License
 =======

 The source code of PEARL Procedures is available under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0) at <https://git.psi.ch/pearl-public/igor-procs>.
-Users of PEARL Procedures are requested to coordinate and share the development of the code with the original author.
 Please read and respect the respective license agreements.
+Please share your extensions of the code with the original author.

 Author
 ------
@ -32,3 +36,12 @@ Copyright

 Copyright 2009-2016 by [Paul Scherrer Institut](http://www.psi.ch)

+
+Release Notes
+=============
+
+## rev-distro-1.1.1 
+
+- If you have upgraded PEARL Procedures from pre-1.1.1 and Igor breaks in pearl-elog.ipf while opening an experiment, please delete the ELOG preferences file `pearl-elog/preferences.pxp`. (Check the Igor Help to find the package preferences folder on your system.)
+
+
--- a/doc/config.dox
+++ b/doc/config.dox
@ -38,7 +38,7 @@ PROJECT_NAME           = "PEARL Procedures"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.

-PROJECT_NUMBER         = 
+PROJECT_NUMBER         = $(REVISION)

 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@ -1647,7 +1647,7 @@ EXTRA_PACKAGES         =
 # to HTML_HEADER.
 # This tag requires that the tag GENERATE_LATEX is set to YES.

-LATEX_HEADER           = 
+LATEX_HEADER           = src/header.tex

 # The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
 # generated LaTeX document. The footer should contain everything after the last
--- a/doc/makefile
+++ b/doc/makefile
@ -11,7 +11,7 @@ DOX=doxygen
 DOXOPTS=
 LATEX_DIR=latex

-REVISION=$(shell git describe --always --tags --dirty --long)
+REVISION=$(shell git describe --always --tags --dirty --long || echo "unknown, "`date +"%F %T %z"`)
 export REVISION

 all: docs
@ -19,7 +19,7 @@ all: docs
 docs: doxygen pdf

 doxygen:
-	$(DOX) $(DOXOPTS) Doxyfile
+	$(DOX) $(DOXOPTS) config.dox

 pdf: doxygen
 	-$(MAKE) -C $(LATEX_DIR)
@ -27,3 +27,4 @@ pdf: doxygen
 clean:
 	-rm latex/*
 	-rm html/*
+
--- a/doc/src/header.tex
+++ b/doc/src/header.tex
@ -0,0 +1,149 @@
+% Latex header for doxygen 1.8.9.1
+%
+% To generate this file, call:
+% doxygen -w latex header.tex footer.tex doxygen.sty
+% and substitute the placeholders:
+% $title, $datetime, $date, $doxygenversion, $projectname, $projectnumber, $projectbrief, $projectlogo
+% (or diff and merge with previous version)
+%
+\documentclass[twoside]{book}
+
+% Packages required by doxygen
+\usepackage{fixltx2e}
+\usepackage{calc}
+\usepackage{doxygen}
+\usepackage[export]{adjustbox} % also loads graphicx
+\usepackage{graphicx}
+\usepackage[utf8]{inputenc}
+\usepackage{makeidx}
+\usepackage{multicol}
+\usepackage{multirow}
+\PassOptionsToPackage{warn}{textcomp}
+\usepackage{textcomp}
+\usepackage[nointegrals]{wasysym}
+\usepackage[table]{xcolor}
+
+% Font selection
+\usepackage[T1]{fontenc}
+\usepackage[scaled=.90]{helvet}
+\usepackage{courier}
+\usepackage{amssymb}
+\usepackage{sectsty}
+\renewcommand{\familydefault}{\sfdefault}
+\allsectionsfont{%
+  \fontseries{bc}\selectfont%
+  \color{darkgray}%
+}
+\renewcommand{\DoxyLabelFont}{%
+  \fontseries{bc}\selectfont%
+  \color{darkgray}%
+}
+\newcommand{\+}{\discretionary{\mbox{\scriptsize$\hookleftarrow$}}{}{}}
+
+% Page & text layout
+\usepackage{geometry}
+\geometry{%
+  a4paper,%
+  top=2.5cm,%
+  bottom=2.5cm,%
+  left=2.5cm,%
+  right=2.5cm%
+}
+\tolerance=750
+\hfuzz=15pt
+\hbadness=750
+\setlength{\emergencystretch}{15pt}
+\setlength{\parindent}{0cm}
+\setlength{\parskip}{0.2cm}
+\makeatletter
+\renewcommand{\paragraph}{%
+  \@startsection{paragraph}{4}{0ex}{-1.0ex}{1.0ex}{%
+    \normalfont\normalsize\bfseries\SS@parafont%
+  }%
+}
+\renewcommand{\subparagraph}{%
+  \@startsection{subparagraph}{5}{0ex}{-1.0ex}{1.0ex}{%
+    \normalfont\normalsize\bfseries\SS@subparafont%
+  }%
+}
+\makeatother
+
+% Headers & footers
+\usepackage{fancyhdr}
+\pagestyle{fancyplain}
+\fancyhead[LE]{\fancyplain{}{\bfseries\thepage}}
+\fancyhead[CE]{\fancyplain{}{}}
+\fancyhead[RE]{\fancyplain{}{\bfseries\leftmark}}
+\fancyhead[LO]{\fancyplain{}{\bfseries\rightmark}}
+\fancyhead[CO]{\fancyplain{}{}}
+\fancyhead[RO]{\fancyplain{}{\bfseries\thepage}}
+\fancyfoot[LE]{\fancyplain{}{}}
+\fancyfoot[CE]{\fancyplain{}{}}
+\fancyfoot[RE]{\fancyplain{}{\bfseries\scriptsize $projectnumber}}
+\fancyfoot[LO]{\fancyplain{}{\bfseries\scriptsize $projectnumber}}
+\fancyfoot[CO]{\fancyplain{}{}}
+\fancyfoot[RO]{\fancyplain{}{}}
+\renewcommand{\footrulewidth}{0.4pt}
+\renewcommand{\chaptermark}[1]{%
+  \markboth{#1}{}%
+}
+\renewcommand{\sectionmark}[1]{%
+  \markright{\thesection\ #1}%
+}
+
+% Indices & bibliography
+\usepackage{natbib}
+\usepackage[titles]{tocloft}
+\setcounter{tocdepth}{3}
+\setcounter{secnumdepth}{5}
+\makeindex
+
+% Hyperlinks (required, but should be loaded last)
+\usepackage{ifpdf}
+\ifpdf
+  \usepackage[pdftex,pagebackref=true]{hyperref}
+\else
+  \usepackage[ps2pdf,pagebackref=true]{hyperref}
+\fi
+\hypersetup{%
+  colorlinks=true,%
+  linkcolor=blue,%
+  citecolor=blue,%
+  unicode%
+}
+
+% Custom commands
+\newcommand{\clearemptydoublepage}{%
+  \newpage{\pagestyle{empty}\cleardoublepage}%
+}
+
+%===== C O N T E N T S =====
+
+\begin{document}
+
+% Titlepage & ToC
+\hypersetup{pageanchor=false,
+             bookmarks=true,
+             bookmarksnumbered=true,
+             pdfencoding=unicode
+            }
+\pagenumbering{roman}
+\begin{titlepage}
+\vspace*{7cm}
+\begin{center}%
+{\Large $projectname}\\
+\vspace*{1cm}
+{\large $projectbrief }\\
+\vspace*{0.5cm}
+{\small Version $projectnumber}\\
+\vspace*{0.5cm}
+{\small $datetime}\\
+\end{center}
+\end{titlepage}
+\clearemptydoublepage
+\tableofcontents
+\clearemptydoublepage
+\pagenumbering{arabic}
+\hypersetup{pageanchor=true}
+
+%--- Begin generated contents ---
--- a/doc/src/mainpage.dox
+++ b/doc/src/mainpage.dox
@ -21,7 +21,7 @@ Users of PEARL Procedures are requested to coordinate and share the development
 Please read and respect the respective license agreements.

 \author    Matthias Muntwiler, <mailto:matthias.muntwiler@psi.ch>
-\version   This documentation is compiled from revision $(REVISION).
+\version   This documentation is compiled from version $(REVISION).
 \copyright 2009-2016 by [Paul Scherrer Institut](http://www.psi.ch)
 \copyright Licensed under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
 */
--- a/mm/mm-physconst.ipf
+++ b/mm/mm-physconst.ipf
@ -0,0 +1,97 @@
+#pragma rtGlobals=1		// Use modern global access method.
+#pragma version = 1.05
+
+// physical constants
+// original version: 03-05-23 by mm
+// $Id$
+
+// source: CODATA 2002 [Rev. Mod. Phys. 77, 1 (2005)]
+
+// universal constants
+
+constant kSpeedOfLight = 2.99792458e8 // m/s
+constant kMagnField = 1.25663706144e-6 // V s / A / m
+constant kElField = 8.854187817620e-12 // A s / V / m
+
+constant kGravitation = 6.6742e-11 // m^3 / kg / s^2
+
+constant kHBar =  6.58211915e-16 // eV s
+constant kPlanckBar = 6.58211915e-16 // eV s
+constant kPlanck = 4.13566743e-15 // eV s
+constant kHBarC = 197.326968 // MeV fm
+constant kHC = 1239.84190605 // eV nm
+constant kHCicm = 1239.84190605e-7 // eV cm^-1
+constant kPlanckBarSI = 1.05457168e-34 // J s
+constant kPlanckSI = 6.6260693e-34 // J s
+
+// electromagnetic constants
+
+constant kElCharge = 1.60217653e-19 // A s
+constant kMagnFlux = 2.06783372e-15 // Wb
+constant kConductance = 7.748091733e-5 // S
+
+constant kBohrMagneton = 5.788381804e-5 // eV T^-1
+constant kBohrMagnetonSI = 9.27400949e-24 // J T^-1 = A m^2
+constant kNuclearMagneton = 3.152451259e-8 // eV T^-1
+constant kNuclearMagnetonSI = 5.05078343e-27 // J T^-1
+
+// atomic and nuclear constants
+
+constant kFineStruct = 7.297352568e-3
+constant kInvFineStruct = 137.03599911
+
+constant kRydberg = 10973731.568525 // m^-1
+constant kRydbergEnergy = 13.6056923 // eV
+constant kBohrRadius = 0.5291772108e-10 // m
+constant kHartreeEnergy = 27.2113845 // eV
+constant kHartreeEnergySI = 4.35974417 // J
+
+constant kElectronMass = 510.998918e3 // eV c^-2
+constant kMuonMass = 105.6583692e6 // eV c^-2
+constant kProtonMass = 938.272029e6 // eV c^-2
+constant kNeutronMass = 939.565360e6 // eV c^-2
+constant kElectronMassSI = 9.1093826e-31 // kg
+constant kProtonMassSI = 1.67262171e-27 // kg
+
+constant kComptonWavelength = 2.426310238e-12 // m
+constant kElectronRadius = 2.817940325e-15 // m
+constant kThomsonCrossSection = 0.665245873e-28 // m^2
+constant kElectronGFactor = -2.0023193043718
+
+// physico-chemical constants
+
+constant kAvogadro = 6.0221415e23 // 1 / mol
+
+constant kAtomicMassUnit = 931.494043e6 // eV / c^2
+constant kAtomicMassUnitSI = 1.66053886e-27 // kg
+
+constant kMolarGasSI = 8.314472 // J / K / mol
+constant kBoltzmann = 8.617343e-5 // eV / K
+constant kBoltzmannSI = 1.3806505e-23 // J /K
+constant kWien = 2.8977685e-3 // m K
+constant kStefanBoltzmann = 5.670400e-8 // W m^-2 K^-4
+
+constant kJoulesPerEV = 1.60217653e-19 // J / eV
+constant kEVPerHartree = 27.2113845 // eV / Eh
+
+// custom constants
+
+constant kFreeElectronDispersion = 3.79736 // eV Angstrom^2
+	// = h_bar^2 * c^2 / (2 * m_e)
+	// for E = kFreeElectronDispersion * k^2
+
+threadsafe function FreeElectronWavelength(ekin, [v0, meff])
+	// Wavelength of a quasi-free electron in meters
+	variable ekin	// kinetic energy of the electron in eV
+	variable v0	// inner potential (where applicable), default = 0
+	variable meff	// effective mass relative to free electron, default = 1
+	
+	if (ParamIsDefault(v0))
+		v0 = 0
+	endif
+	if (ParamIsDefault(meff))
+		meff = 1
+	endif
+	
+	return khc * 1e-9 / sqrt(2 * kElectronMass * meff * (ekin + v0))
+end
--- a/pearl/pearl-anglescan-process-test.ipf
+++ b/pearl/pearl-anglescan-process-test.ipf
@ -1,80 +0,0 @@
-#pragma rtGlobals=3		// Use modern global access method and strict wave access.
-#pragma IgorVersion = 6.1
-#pragma ModuleName = PearlAnglescanProcessTest
-#pragma version = 1.0
-
-#include "pearl-anglescan-process"
-#include "unit-testing"
-
-// test suite for pearl-anglescan-process.ipf
-
-// unit testing framework: http://www.igorexchange.com/project/unitTesting
-// run all test cases with RunTest("pearl-anglescan-process.ipf")
-// if wave equalities fail, EnableDebugOutput() and read Igor help on equalWaves().
-
-// created: matthias.muntwiler@psi.ch, 2013-11-18
-// Copyright (c) 2013 Paul Scherrer Institut
-// $Id$
-
-static function test_convert_angles_ttpa()
-	// function parameters
-	variable ntests = 3
-	make /n=(ntests)/d/free i_theta, i_tilt, i_phi
-	make /n=3/d/free i_ana
-	make /n=1/d/free o_polar, o_azi
-	i_theta = {0, 90, 90}
-	i_tilt = {0, 0, 0}
-	i_phi = {0, 0, 10}
-	i_ana = {-30, 0, +30}
-	
-	make /n=(3,ntests)/d/free e_polar, e_azi
-	e_polar[][0] = {30, 0, 30}
-	e_azi[][0] = {-90, 0, 90} // 180, 90, 0
-	
-	e_polar[][1] = {90, 90, 90}
-	e_azi[][1] = {-30, 0, +30}
-	
-	e_polar[][2] = {90, 90, 90}
-	e_azi[][2] = {-20, 10, +40}
-	
-	variable phi0 = 0
-	e_azi += phi0
-
-	convert_angles_ttpa2polar(i_theta, i_tilt, i_phi, i_ana, o_polar, o_azi)
-
-	
-	CHECK_EQUAL_WAVES(o_polar, e_polar, tol=0.001)
-	CHECK_EQUAL_WAVES(o_azi, e_azi, tol=0.001)
-	
-	nvar /z errors = root:packages:unittesting:error_count
-	if ((nvar_exists(errors)) && (errors > 0))
-		print o_azi
-		print e_azi
-	endif
-end
-
-static function test_hist_hemi_aziscan()
-	CHECK_EMPTY_FOLDER()
-
-	make /n=360/d/free value, azi
-	azi = p
-	value = 1
-	variable polar = 45 // dphi = 2
-	
-	make_hemi_grid(91, "")
-	wave w_index = index
-	wave w_nphis = nphis
-	wave w_dphi = dphi
-	wave w_values = values
-	wave w_azim = azim
-	wave w_polar = polar
-	
-	duplicate /free w_values, e_values
-	variable p1 = w_index[44]
-	variable p2 = w_index[45]
-	e_values = (p >= p1) && (p < p2) ? 1 : 0
-
-	hemi_add_aziscan("", value, polar, azi)
-
-	CHECK_EQUAL_WAVES(w_values, e_values, tol=0.001)
-end
--- a/pearl/pearl-anglescan-process.ipf
+++ b/pearl/pearl-anglescan-process.ipf
@ -6,14 +6,14 @@
 #include "pearl-polar-coordinates"
 #include <New Polar Graphs>

-// $Id$
-//
-// copyright (c) 2013-15 Paul Scherrer Institut
+// copyright (c) 2013-16 Paul Scherrer Institut
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 //   you may not use this file except in compliance with the License.
 //   You may obtain a copy of the License at
 //   http:///www.apache.org/licenses/LICENSE-2.0
+//
+// Please acknowledge the use of this code.

 /// @file
 /// @brief processing and holographic mapping of angle scanned XPD data.
@ -64,7 +64,7 @@
 ///
 /// @author matthias muntwiler, matthias.muntwiler@psi.ch
 ///
-/// @copyright 2013-15 Paul Scherrer Institut @n
+/// @copyright 2013-16 Paul Scherrer Institut @n
 /// Licensed under the Apache License, Version 2.0 (the "License"); @n
 ///   you may not use this file except in compliance with the License. @n
 ///   You may obtain a copy of the License at
@ -79,15 +79,38 @@
 ///
 /// PearlAnglescanProcess is declared in @ref pearl-anglescan-process.ipf.

-/// @warning experimental
-function strip_remove_frames(strip, yscale, ylo, yhi)
+
+/// delete a contiguous range of frames from a strip.
+///
+/// this can be used to remove a region of bad frames due to, e.g., measurement problems.
+/// the function operates on 2D intensity data and manipulator coordinates at the same time.
+///
+/// @param[in,out]	strip			2D data, X-axis = analyser angle, Y-axis = arbitrary manipulator scan.
+///								the result is written to the original wave.
+///
+/// @param[in,out]	theta		1D data, manipulator scan.
+///								the result is written to the original wave.
+///
+/// @param[in,out]	tilt			1D data, manipulator scan.
+///								the result is written to the original wave.
+///
+/// @param[in,out]	phi			1D data, manipulator scan.
+///								the result is written to the original wave.
+///
+/// @param[in]		qlo			point index of first frame to delete.
+///
+/// @param[in]		qhi			point index of last frame to delete.
+///								qhi must be greater or equal than qlo.
+///
+function strip_delete_frames(strip, qlo, qhi, theta, tilt, phi)
 	wave strip // 2D data, X-axis = analyser angle, Y-axis = arbitrary manipulator scan
-	wave /z yscale // Y scaling, e.g. ManipulatorPhi
-		// if unassigned, point scaling is assumed
-	variable ylo
-	variable yhi
+	variable qlo
+	variable qhi
+	wave theta
+	wave tilt
+	wave phi
 	
-	if (ylo > yhi)
+	if (qlo > qhi)
 		return -1
 	endif
 	
@ -95,8 +118,8 @@ function strip_remove_frames(strip, yscale, ylo, yhi)
 	variable snx = dimsize(strip, 0)
 	variable sny = dimsize(strip, 1)
 	variable sq1lo = 0
-	variable sq1hi = max(round((ylo - dimoffset(strip, 1)) / dimdelta(strip, 1)), 0)
-	variable sq2lo = min(round((ylo - dimoffset(strip, 1)) / dimdelta(strip, 1)), sny - 1)
+	variable sq1hi = max(qlo-1, 0)
+	variable sq2lo = min(qhi+1, sny - 1)
 	variable sq2hi = dimsize(strip, 1) - 1
 	
 	// dest indices
@ -111,10 +134,24 @@ function strip_remove_frames(strip, yscale, ylo, yhi)
 	
 	duplicate /free strip, strip_copy
 	redimension /n=(dnx,dny) strip
-	
 	strip[][dq1lo,dq1hi] = strip_copy[p][q + q1ofs]
 	strip[][dq2lo,dq2hi] = strip_copy[p][q + q2ofs]
 	
+	duplicate /free theta, theta_copy
+	redimension /n=(dny) theta
+	theta[dq1lo,dq1hi] = theta_copy[p + q1ofs]
+	theta[dq2lo,dq2hi] = theta_copy[p + q2ofs]
+	
+	duplicate /free tilt, tilt_copy
+	redimension /n=(dny) tilt
+	tilt[dq1lo,dq1hi] = tilt_copy[p + q1ofs]
+	tilt[dq2lo,dq2hi] = tilt_copy[p + q2ofs]
+	
+	duplicate /free phi, phi_copy
+	redimension /n=(dny) phi
+	phi[dq1lo,dq1hi] = phi_copy[p + q1ofs]
+	phi[dq2lo,dq2hi] = phi_copy[p + q2ofs]
+	
 	return 0
 end

@ -144,6 +181,7 @@ end
 /// @return if check waves are enabled, the following waves are created (overwritten if existing):
 /// @arg check_dist average X distribution
 /// @arg check_smoo smoothed distribution used to normalize the strip
+///
 function normalize_strip_x(strip, [smooth_method, smooth_factor, check])
 	wave strip
 	variable smooth_method
@ -233,6 +271,7 @@ end
 /// @return if check waves are enabled, the following waves are created (overwritten if existing):
 ///	@arg check_dist average theta distribution
 ///	@arg check_smoo smoothed distribution used to normalize the strip
+///
 function normalize_strip_theta(strip, theta, [theta_offset, smooth_method, smooth_factor, check])
 	wave strip
 	wave theta
@ -261,6 +300,7 @@ function normalize_strip_theta(strip, theta, [theta_offset, smooth_method, smoot
 	duplicate /free dist, dist_smoo
 	duplicate /free theta, theta_int
 	theta_int = theta - theta_offset
+	setscale /p x theta_int[0], theta_int[1] - theta_int[0], waveunits(theta,-1), dist, dist_smoo
 	variable nx = dimsize(strip, 0)
 	variable ix
 	
@ -297,6 +337,71 @@ function normalize_strip_theta(strip, theta, [theta_offset, smooth_method, smoot
 	if (check)
 		duplicate /o dist, check_dist
 		duplicate /o dist_smoo, check_smoo
+		setscale /p x dimoffset(dist,0), dimdelta(dist,0), waveunits(dist,0), check_dist, check_smoo
+	endif
+end
+
+/// divide the strip by a two-dimensional normalization function.
+///
+/// @warning experimental. this function is under development.
+///
+/// @param check enable output of intermediate results
+///	@arg 0 (default)  don't create additional waves
+/// 	@arg 1 create check waves in the current folder
+///	@arg 2 calculate check waves only, do not modify strip
+///
+/// @return if check waves are enabled, the following waves are created (overwritten if existing):
+///	@arg check_dist average theta distribution
+///	@arg check_smoo smoothed distribution used to normalize the strip
+///
+function normalize_strip_2d(strip, theta, [theta_offset, smooth_method, smooth_factor, check])
+	wave strip
+	wave theta
+	variable theta_offset
+	variable smooth_method
+	variable smooth_factor
+	variable check
+	
+	if (ParamIsDefault(check))
+		check = 0
+	endif
+	if (ParamIsDefault(theta_offset))
+		theta_offset = 0
+	endif
+	if (ParamIsDefault(smooth_method))
+		smooth_method = 4
+	endif
+	if (ParamIsDefault(smooth_factor))
+		smooth_factor = 0.5
+	endif
+
+	variable nx = dimsize(strip, 0)
+	variable ny = dimsize(strip, 1)
+	
+	duplicate /free strip, dist, alpha_int, theta_int
+	theta_int = theta[q] - theta_offset
+	alpha_int = dimoffset(strip, 0) + p * dimdelta(strip, 0)
+	redimension /n=(nx * ny) dist, alpha_int, theta_int
+	
+	switch(smooth_method)
+		case 4:
+			loess /dest=dist_smoo /smth=(smooth_factor) srcWave=dist, factors={alpha_int, theta_int}
+			redimension /n=(nx, ny) dist_smoo
+			break
+		default:
+			Abort "undefined smooth method"
+			break
+	endswitch
+	
+	// divide
+	if (check != 2)
+		strip /= dist_smoo
+	endif
+	
+	// check
+	if (check)
+		//duplicate /o dist, check_dist
+		duplicate /o dist_smoo, check_smoo
 	endif
 end

@ -705,9 +810,9 @@ function convert_angles_ttpa2polar(theta, tilt, phi, analyser, polar, azi)
 	// this is simply a polar-cartesian mapping, independent of the manipulator
 	// phi=0 is in the polar rotation plane
 	make /n=(3,na) /d /free w_orig_polar, w_orig_cart, w_rot_cart, w_rot_polar
-	w_orig_polar[0] = radius
-	w_orig_polar[1] = analyser[q]
-	w_orig_polar[2] = 0
+	w_orig_polar[0][] = radius
+	w_orig_polar[1][] = analyser[q]
+	w_orig_polar[2][] = 0
 	polar2cart_wave(w_orig_polar, w_orig_cart)
 	// if the angle-dispersive axis was horizontal, we'd need to rotate the detector
 	//rotate_z_wave(w_orig_cart, 90)
@ -1758,7 +1863,7 @@ function /s display_scanlines(nickname, alpha_lo, alpha_hi, m_theta, m_tilt, m_p
 	make /n=1 /d /free d_polar, d_azi
 	variable n_alpha = round(alpha_hi - alpha_lo) + 1
 	make /n=(n_alpha) /d /free analyser
-	setscale /i x alpha_lo, alpha_hi, "deg", analyser
+	setscale /i x alpha_lo, alpha_hi, "<EFBFBD>", analyser
 	analyser = x
 	
 	convert_angles_ttpa2polar(m_theta, loc_m_tilt, m_phi, analyser, d_polar, d_azi)
@ -1802,21 +1907,46 @@ function /s display_scanlines(nickname, alpha_lo, alpha_hi, m_theta, m_tilt, m_p
 	return graphname
 end

-static constant kProjScaleLinear = 2
+/// @page PageProjections Projections
+///
+/// the functions of the anglescan package support the following map projections.
+/// for a description of the different projections, see, for example,
+/// https://en.wikipedia.org/wiki/Map_projection
+///
+/// | Selector | Projection | Function | Properties |
+/// | :----: | :----: | :----: | :---- |
+/// | kProjDist = 0 | azimuthal equidistant | r = c * theta | radius is proportional to polar angle. |
+/// | kProjStereo = 1 | stereographic | r = c * tan theta/2 | circles on sphere map to circles. |
+/// | kProjArea = 2 | azimuthal equal-area | r = c * sin theta/2 | preserves area measure. |
+/// | kProjGnom = 3 | gnomonic | r = c * tan theta | great circles map to straight lines. |
+/// | kProjOrtho = 4 | orthographic | r = c * sin theta | k-space mapping in ARPES and LEED. |
+///
+/// the projections in this package are defined for 0 <= theta < 90.
+///
+constant kProjDist = 0
+constant kProjStereo = 1
+constant kProjArea = 2
+constant kProjGnom = 3
+constant kProjOrtho = 4
+
+static constant kProjScaleDist = 2
 static constant kProjScaleStereo = 2
-static constant kProjScaleAzim = 2
+static constant kProjScaleArea = 2
 // scaled so that radius(gnom) = radius(stereo) for polar = 88
-static constant kProjScaleGnomonic = 0.06744519021
+static constant kProjScaleGnom = 0.06744519021
+static constant kProjScaleOrtho = 2

 /// calculate the projected polar angle
 ///
 /// @param	polar			polar angle in degrees
 ///
-/// @param	projection		mapping function from polar to cartesian coordinates
-///	@arg	0				linear
-///	@arg	1				stereographic (default)
-///	@arg	2				azimuthal
-///	@arg	3				gnomonic (0 <= polar < 90)
+/// @param	projection		mapping function from polar to cartesian coordinates.
+///							see @ref PageProjections for details.
+///	@arg	kProjDist = 0		azimuthal equidistant
+///	@arg	kProjStereo = 1	stereographic (default)
+///	@arg	kProjArea = 2	azimuthal equal-area
+///	@arg	kProjGnom = 3	gnomonic (0 <= polar < 90)
+///	@arg	kProjOrtho = 4	orthographic
 ///
 /// @return projected radius.
 ///	the radius is scaled such that grazing emission maps to 2.
@ -1830,17 +1960,20 @@ threadsafe function calc_graph_radius(polar, [projection])

 	variable radius
 	switch(projection)
-		case 1: // stereographic
+		case kProjStereo: // stereographic
 			radius = kProjScaleStereo * tan(polar / 2 * pi / 180)
 			break
-		case 2: // azimuthal
-			radius = kProjScaleAzim * cos((180 - polar) / 2 * pi / 180)
+		case kProjArea: // equal area
+			radius = kProjScaleArea * sin(polar / 2 * pi / 180)
 			break
-		case 3: // gnomonic
-			radius = polar < 90 ? kProjScaleGnomonic * tan(polar * pi / 180) : inf
+		case kProjGnom: // gnomonic
+			radius = polar < 90 ? kProjScaleGnom * tan(polar * pi / 180) : inf
 			break
-		default: // linear
-			radius = kProjScaleLinear * polar / 90
+		case kProjOrtho: // orthographic
+			radius = kProjScaleOrtho * sin(polar * pi / 180)
+			break
+		default: // equidistant
+			radius = kProjScaleDist * polar / 90
 	endswitch
 	
 	return radius
@ -1852,10 +1985,13 @@ end
 ///
 /// @param	x, y				projected Cartesian coordinate
 ///
-/// @param	projection		mapping function from polar to cartesian coordinates
-///	@arg	0				linear
-///	@arg	1				stereographic (default)
-///	@arg	2				azimuthal
+/// @param	projection		mapping function from polar to cartesian coordinates.
+///							see @ref PageProjections for details.
+///	@arg	kProjDist = 0		azimuthal equidistant
+///	@arg	kProjStereo = 1	stereographic (default)
+///	@arg	kProjArea = 2	azimuthal equal-area
+///	@arg	kProjGnom = 3	gnomonic (0 <= polar < 90)
+///	@arg	kProjOrtho = 4	orthographic
 ///
 /// @returns polar angle in degrees
 ///
@ -1873,17 +2009,20 @@ threadsafe function calc_graph_polar(x, y, [projection])
 	
 	radius = sqrt(x^2 + y^2)
 	switch(projection)
-		case 1: // stereographic
+		case kProjStereo: // stereographic
 			polar = 2 * atan(radius / kProjScaleStereo) * 180 / pi
 			break
-		case 2: // azimuthal
-			polar = 180 - 2 * acos(radius / kProjScaleAzim) * 180 / pi
+		case kProjArea: // equal area
+			polar = 2 * asin(radius / kProjScaleArea) * 180 / pi
 			break
-		case 3: // gnomonic
-			polar = atan(radius / kProjScaleGnomonic) * 180 / pi
+		case kProjGnom: // gnomonic
+			polar = atan(radius / kProjScaleGnom) * 180 / pi
 			break
-		default: // linear
-			polar = 90 * radius / kProjScaleLinear
+		case kProjOrtho: // orthographic
+			polar = asin(radius / kProjScaleOrtho) * 180 / pi
+			break
+		default: // equidistant
+			polar = 90 * radius / kProjScaleDist
 	endswitch

 	return polar
@ -1893,12 +2032,14 @@ end
 ///
 /// @param	x, y				projected Cartesian coordinate
 ///
-/// @param	projection		mapping function from polar to cartesian coordinates
-///	@arg	0				linear
-///	@arg	1				stereographic (default)
-///	@arg	2				azimuthal
-///
-/// 							projections 0-2 have no effect on the azimuthal coordinate
+/// @param	projection		mapping function from polar to cartesian coordinates.
+///							all supported projections are azimuthal, they have no effect on the azimuthal coordinate.
+///							see @ref PageProjections for details.
+///	@arg	kProjDist = 0		azimuthal equidistant
+///	@arg	kProjStereo = 1	stereographic (default)
+///	@arg	kProjArea = 2	azimuthal equal-area
+///	@arg	kProjGnom = 3	gnomonic (0 <= polar < 90)
+///	@arg	kProjOrtho = 4	orthographic
 ///
 /// @param	zeroAngle		zeroAngleWhere parameter of polar graphs
 ///	@arg	0 (default)		zero is at the 3 o'clock position
@ -2447,8 +2588,35 @@ end

 /// import a hemispherical scan from theta-phi-intensity waves and display it
 ///
-/// @warning EXPERIMENTAL
-/// the interface and behaviour of this function may change
+/// in the tpi format, the hemi scan data is represented
+/// by a triple of flat one-dimensional waves
+/// corresponding to the polar angle (theta), azimuthal angle (phi) and intensity.
+/// no specific sort order is required.
+///
+/// @param	nickname	nick name for output data
+///	@arg in default mode, this will become the name of a child folder containing the output.
+///	@arg in XPDplot mode, this will become a prefix of the generated data in the root folder.
+///
+/// @param	theta		theta angles, 0 = normal emission.
+///
+/// @param	phi			phi angles, 0 = azimuthal origin. size = dimsize(data, 1)
+///
+/// @param	intensity		intensity wave, see requirements above.
+///
+/// @param	npolar		number of polar angles, determines polar and azimuthal step size.
+///						default = 91 (1 degree steps)
+///
+/// @param	folding		rotational averaging.
+///						example: 3 = average to 3-fold symmetry.
+///						default = 1.
+///
+/// @param	nograph		display a new graph window?
+///	@arg	0			(default) display a new polar graph
+///	@arg	1			don't display a new graph
+///
+/// @param	xpdplot		XPDplot compatibility
+///	@arg	0			(default) create waves in child folder $nickname
+///	@arg	1			create waves in root folder (compatible with XPDplot)
 ///
 function import_tpi_scan(nickname, theta, phi, intensity, [folding, npolar, nograph, xpdplot])
 	string nickname
@ -2483,5 +2651,195 @@ function import_tpi_scan(nickname, theta, phi, intensity, [folding, npolar, nogr
 		fold_phi = fold_phi >= 180 ? fold_phi + 360 / folding - fold_phi : fold_phi + 360 / folding
 	endfor

-	display_hemi_scan(nickname)
-end
+	if (nograph==0)
+		display_hemi_scan(nickname)
+	endif
+end
+
+/// trim a hemispherical scan at grazing angle
+///
+/// the function recalaculates the values wave from totals and weights
+/// but sets elements above a given polar angle to nan.
+///
+/// @param nickname		name of the scan dataset.
+///						can be empty if no prefix is used.
+///						the dataset must be in the current datafolder.
+///
+/// @param theta_max	highest polar angle to keep (0...90 degrees).
+///
+function trim_hemi_scan(nickname, theta_max)
+	string nickname
+	variable theta_max
+
+	if (strlen(nickname))
+		string s_prefix = nickname + "_"
+		string s_int = s_prefix + "i"
+	else
+		s_prefix = ""
+		s_int = "values"
+	endif
+	string s_totals = s_prefix + "tot"
+	string s_weights = s_prefix + "wt"
+	string s_polar = s_prefix + "pol"
+
+	wave w_polar = $s_polar
+	wave w_values = $s_int
+	wave w_totals = $s_totals
+	wave w_weights = $s_weights
+
+	w_values = w_polar <= theta_max ? w_totals / w_weights : nan
+end
+
+/// extract a polar cut from a hemispherical scan.
+///
+/// for each polar angle, the function first extracts all azimuthal angles.
+/// the intensity is then interpolated between the nearest neighbours of the given azimuth.
+///
+/// the hemi grid must have been created in the current data folder by the make_hemi_grid function.
+/// correct ordering is required.
+///
+/// @param nickname		name of the scan dataset.
+///						can be empty if no prefix is used.
+///						the dataset must be in the current datafolder.
+///
+/// @param azim			azimuthal angle in degrees
+///
+/// @return				reference of the created wave.
+///						the wave has the same name as the intensity wave of the dataset
+///						with the suffix "_azi" and the azimuthal angle rounded to integer.
+///						it is created in the same datafolder as the original data.
+///
+function /wave hemi_polar_cut(nickname, azim)
+	string nickname
+	variable azim
+
+	if (strlen(nickname))
+		string s_prefix = nickname + "_"
+		string s_int = s_prefix + "i"
+	else
+		s_prefix = ""
+		s_int = "values"
+	endif
+	string s_totals = s_prefix + "tot"
+	string s_weights = s_prefix + "wt"
+	string s_polar = s_prefix + "pol"
+	string s_azim = s_prefix + "az"
+	string s_index = s_prefix + "index"
+	string s_theta = s_prefix + "th"
+	string s_dphi = s_prefix + "dphi"
+	string s_nphis = s_prefix + "nphis"
+	string s_cut
+	sprintf s_cut, "%s_azi%03u", s_int, round(azim)
+
+	wave w_polar = $s_polar
+	wave w_azim = $s_azim
+	wave w_values = $s_int
+	wave w_totals = $s_totals
+	wave w_weights = $s_weights
+	wave w_index = $s_index
+	wave w_theta = $s_theta
+	wave w_dphi = $s_dphi
+	wave w_nphis = $s_nphis
+
+	variable npol = numpnts(w_theta)
+	variable ipol
+	variable pol_st = abs(w_theta[1] - w_theta[0])
+	variable pol
+	variable pol1, pol2
+	variable nsel
+	make /n=(npol) /o $s_cut
+	wave w_cut = $s_cut
+	setscale /i x w_theta[0], w_theta[numpnts(w_theta)-1], "deg", w_cut
+	make /n=1 /free azi_slice
+	make /n=1 /free values_slice
+	
+	for (ipol = 0; ipol < npol; ipol += 1)
+		pol = w_theta[ipol]
+		pol1 = pol - pol_st / 2
+		pol2 = pol + pol_st / 2
+		extract /free /indx w_polar, sel, (pol1 < w_polar) && (w_polar <= pol2)
+		nsel = numpnts(sel)
+		if (nsel > 0)
+			redimension /n=(nsel+2) azi_slice, values_slice
+			azi_slice[1, nsel] = w_azim[sel[p-1]]
+			azi_slice[0] = azi_slice[nsel] - 360
+			azi_slice[nsel+1] = azi_slice[1] + 360
+			values_slice[1, nsel] = w_values[sel[p-1]]
+			values_slice[0] = values_slice[nsel]
+			values_slice[nsel+1] = values_slice[1]
+			w_cut[ipol] = interp(azim, azi_slice, values_slice)
+		else
+			w_cut[ipol] = nan
+		endif
+	endfor
+	return w_cut
+end
+
+/// extract an azimuthal cut from a hemispherical scan
+///
+/// the function extracts all azimuthal angles that are present for the given polar angle.
+///
+/// the hemi grid must have been created in the current data folder by the make_hemi_grid function.
+/// correct ordering is required.
+///
+/// @param nickname		name of the scan dataset.
+///						can be empty if no prefix is used.
+///						the dataset must be in the current datafolder.
+///
+/// @param pol			polar angle in degrees
+///
+/// @return				reference of the created wave.
+///						the wave has the same name as the intensity wave of the dataset
+///						with the suffix "_azi" and the azimuthal angle rounded to integer.
+///						it is created in the same datafolder as the original data.
+///
+function /wave hemi_azi_cut(nickname, pol)
+	string nickname
+	variable pol
+
+	if (strlen(nickname))
+		string s_prefix = nickname + "_"
+		string s_int = s_prefix + "i"
+	else
+		s_prefix = ""
+		s_int = "values"
+	endif
+	string s_totals = s_prefix + "tot"
+	string s_weights = s_prefix + "wt"
+	string s_polar = s_prefix + "pol"
+	string s_azim = s_prefix + "az"
+	string s_index = s_prefix + "index"
+	string s_theta = s_prefix + "th"
+	string s_dphi = s_prefix + "dphi"
+	string s_nphis = s_prefix + "nphis"
+	string s_cut
+	sprintf s_cut, "%s_pol%03u", s_int, round(pol)
+
+	wave w_polar = $s_polar
+	wave w_azim = $s_azim
+	wave w_values = $s_int
+	wave w_totals = $s_totals
+	wave w_weights = $s_weights
+	wave w_index = $s_index
+	wave w_theta = $s_theta
+	wave w_dphi = $s_dphi
+	wave w_nphis = $s_nphis
+
+	variable pol_st = abs(w_theta[1] - w_theta[0])
+	variable pol1, pol2
+	variable nsel
+
+	pol1 = pol - pol_st / 2
+	pol2 = pol + pol_st / 2
+	extract /free /indx w_polar, sel, (pol1 < w_polar) && (w_polar <= pol2)
+	nsel = numpnts(sel)
+	if (nsel > 0)
+		make /n=(nsel) /o $s_cut
+		wave w_cut = $s_cut
+		w_cut = w_values[sel]
+		setscale /i x w_azim[sel[0]], w_azim[sel[nsel-1]], "<22>", w_cut
+		return w_cut
+	else
+		return $""
+	endif
+end
--- a/pearl/pearl-anglescan-tracker.ipf
+++ b/pearl/pearl-anglescan-tracker.ipf
@ -436,7 +436,7 @@ static function setup_detector()
 	setdatafolder $(package_path)

 	make /n=31 /o detector_angle, detector_pol, detector_az, detector_rad
-	setscale /i x -30, 30, "deg", detector_angle, detector_pol, detector_az, detector_rad
+	setscale /i x -30, 30, "°", detector_angle, detector_pol, detector_az, detector_rad
 	detector_angle = x
 	
 	setdatafolder saveDF
@ -573,7 +573,7 @@ static function update_detector(theta, tilt, phi, range)
 	//m_phi *= -1 // checked 140702
 	
 	wave detector_angle, detector_pol, detector_az, detector_rad
-	setscale /i x -range/2, +range/2, "deg", detector_angle
+	setscale /i x -range/2, +range/2, "°", detector_angle
 	detector_angle = x
 	
 	convert_angles_ttpa2polar(m_theta, m_tilt, m_phi, detector_angle, detector_pol, detector_az)
--- a/pearl/pearl-anneal.ipf
+++ b/pearl/pearl-anneal.ipf
--- a/pearl/pearl-area-display.ipf
+++ b/pearl/pearl-area-display.ipf
@ -52,6 +52,25 @@
 /// PearlAreaDisplay is declared in @ref pearl-area-display.ipf.
 ///

+/// compose a valid and unique graph name from a data folder reference
+static function /s graphname_from_dfref(df, prefix)
+	dfref df
+	string prefix
+
+	string name
+
+	name = GetDataFolder(1, df)
+	name = ReplaceString("root:", name, "")
+	name = name[0, strlen(name) - 2]
+	name = ReplaceString(" ", name, "")
+	name = CleanupName(prefix + name, 0)
+	if (CheckName(name, 6))
+		name = UniqueName(name, 6, 0)
+	endif
+	
+	return name
+end
+
 /// open a new graph window with a 2D image.
 ///
 /// this is essentially <code>display; appendimage</code>.
@ -72,7 +91,7 @@ function /s ad_display(image)

 	string dfname = ReplaceString("root:", GetDataFolder(1, imagedf), "")
 	string graphtitle = dfname + " View"
-	string /g view_graphname = CleanupName("view_" + dfname, 0)
+	string /g view_graphname = graphname_from_dfref(imagedf, "view_")
 	svar graphname = view_graphname
 	display /k=1/n=$graphname as graphtitle
 	graphname = s_name
@ -104,7 +123,7 @@ function /s ad_display_histogram(image)

 	string dfname = ReplaceString("root:", GetDataFolder(1, imagedf), "")
 	string graphtitle = dfname + " Histogram"
-	string /g hist_graphname = CleanupName("hist_" + dfname, 0)
+	string /g hist_graphname = graphname_from_dfref(imagedf, "hist_")
 	svar graphname = hist_graphname
 	display /k=1/n=$graphname as graphtitle
 	graphname = s_name
@ -171,16 +190,16 @@ function /s ad_display_profiles(image, [filter])
 	duplicate /o image, $viewname /wave=view
 	make /n=(3,3)/o xprofiles // NX x 3 wave with 3 one-dimensional profiles along Y dimension
 	make /n=(3,3)/o yprofiles // NY x 3 wave with 3 one-dimensional profiles along X dimension
-	make /n=(1)/o hist // histogram
 	string /g view_filter
 	string /g view_filter_options
 	view_filter = filter
 	view_filter_options = ""
 	variable /g view_filter_smoothing_x = 1
 	variable /g view_filter_smoothing_y = 1
-	string dfname = GetDataFolder(0, imagedf)
-	string graphtitle = dfname + ":" + NameOfWave(image) + " Profiles"
-	string /g prof_graphname = CleanupName("prof_" + dfname, 0)
+	variable /g view_cursor_mode = 0
+	string dfname = ReplaceString("root:", GetDataFolder(1, imagedf), "")
+	string graphtitle = dfname + NameOfWave(image) + " Profiles"
+	string /g prof_graphname = graphname_from_dfref(imagedf, "prof_")
 	svar graphname = prof_graphname
 	variable /g graph_avg // average value in ROI (ROI is defined by the crosshairs A and B)
 	variable /g graph_min // minimum value in ROI
@ -193,16 +212,13 @@ function /s ad_display_profiles(image, [filter])
 	graphname = s_name
 	AppendToGraph /w=$graphname /L=xprofiles xprofiles[*][0],xprofiles[*][1],xprofiles[*][2]
 	AppendToGraph /w=$graphname /VERT/B=yprofiles yprofiles[*][0],yprofiles[*][1],yprofiles[*][2]
-	AppendToGraph /w=$graphname /R=hist/B=yprofiles hist
 	AppendImage /w=$graphname view
 	string imgname = StringFromList(0, ImageNameList(graphname, ";"))
 	ModifyImage /w=$graphname $imgname ctab= {*,*,BlueGreenOrange,0}
 	ModifyGraph /w=$graphname rgb(xprofiles)=(39168,0,0),rgb(yprofiles)=(39168,0,0)
 	ModifyGraph /w=$graphname rgb(xprofiles#1)=(0,26112,0),rgb(yprofiles#1)=(0,26112,0)
 	ModifyGraph /w=$graphname rgb(xprofiles#2)=(0,9472,39168),rgb(yprofiles#2)=(0,9472,39168)
-	ModifyGraph /w=$graphname rgb(hist)=(43520,43520,43520)
-	ModifyGraph /w=$graphname mode(hist)=5,hbFill(hist)=2
-	ModifyGraph /w=$graphname mirror(xprofiles)=0,mirror(bottom)=3,mirror(yprofiles)=3,mirror(left)=3
+	ModifyGraph /w=$graphname mirror(xprofiles)=2,mirror(bottom)=3,mirror(yprofiles)=2,mirror(left)=3
 	ModifyGraph /w=$graphname nticks=3
 	ModifyGraph /w=$graphname minor=1
 	ModifyGraph /w=$graphname axThick=0.5
@ -210,21 +226,33 @@ function /s ad_display_profiles(image, [filter])
 	ModifyGraph /w=$graphname btLen=4
 	ModifyGraph /w=$graphname freePos(xprofiles)=0
 	ModifyGraph /w=$graphname freePos(yprofiles)=0
-	ModifyGraph /w=$graphname freePos(hist)=0
 	ModifyGraph /w=$graphname axisEnab(xprofiles)={0.64,1}
-	ModifyGraph /w=$graphname axisEnab(hist)={0.64,1}
 	ModifyGraph /w=$graphname axisEnab(bottom)={0,0.6}
 	ModifyGraph /w=$graphname axisEnab(yprofiles)={0.64,1}
 	ModifyGraph /w=$graphname axisEnab(left)={0,0.6}
 	ModifyGraph /w=$graphname zero(left)=8
 	ModifyGraph /w=$graphname margin(left)=40,margin(bottom)=30,margin(top)=20,margin(right)=40
 	ModifyGraph /w=$graphname gfSize=10
-	Label /w=$graphname xprofiles "value (\\U)"
-	Label /w=$graphname bottom "X (\\U)"
-	Label /w=$graphname yprofiles "value (\\U)"
-	Label /w=$graphname left "Y (\\U)"
-	Label /w=$graphname hist "\\Epixels"
-	SetAxis /w=$graphname /A /E=1 hist
+
+	// axis labels	
+	string labels = note(image)
+	string lab
+	lab = StringByKey("AxisLabelX", labels, "=", "\r")
+	if (!strlen(lab))
+		lab = "X"
+	endif
+	Label /w=$graphname bottom lab + " (\\U)"
+	lab = StringByKey("AxisLabelY", labels, "=", "\r")
+	if (!strlen(lab))
+		lab = "Y"
+	endif
+	Label /w=$graphname left lab + " (\\U)"
+	lab = StringByKey("AxisLabelD", labels, "=", "\r")
+	if (!strlen(lab))
+		lab = "value"
+	endif
+	Label /w=$graphname xprofiles lab + " (\\U)"
+	Label /w=$graphname yprofiles lab + " (\\U)"
 	
 	// legend
 	if (show_legend)
@ -233,13 +261,18 @@ function /s ad_display_profiles(image, [filter])
 		AppendText /w=$graphname "\\s(xprofiles#2)\tROI average"
 		AppendText /w=$graphname "min\t\\{" + s_viewdf + "graph_min}"
 		AppendText /w=$graphname "max\t\\{" + s_viewdf + "graph_max}"
-		AppendText /w=$graphname "avg\t\\{" + s_viewdf + "graph_avg}"
 		AppendText /w=$graphname "sum\t\\{" + s_viewdf + "graph_sum}"
+		AppendText /w=$graphname "avg\t\\{" + s_viewdf + "graph_avg}"
 		AppendText /w=$graphname "sdev\t\\{" + s_viewdf + "graph_sdev}"
 	else
-		TextBox /w=$graphname /C/N=text_sum/F=0/B=1/X=1.00/Y=1.00 "sum \\{" + s_viewdf + "graph_sum}"
-		TextBox /w=$graphname /C/N=text_avg/F=0/B=1/X=1.00/Y=6.00 "avg \\{" + s_viewdf + "graph_avg}"
-		TextBox /w=$graphname /C/N=text_sdev/F=0/B=1/X=1.00/Y=11.00 "sdev \\{" + s_viewdf + "graph_sdev}"
+		TextBox /w=$graphname /C/N=text0 /F=0 /B=1 /X=1.00 /Y=1.00
+		lab = StringByKey("Dataset", labels, "=", "\r")
+		if (strlen(lab))
+			AppendText /w=$graphname lab
+		endif
+		AppendText /w=$graphname "sum\t\\{" + s_viewdf + "graph_sum}"
+		AppendText /w=$graphname "avg\t\\{" + s_viewdf + "graph_avg}"
+		AppendText /w=$graphname "sdev\t\\{" + s_viewdf + "graph_sdev}"
 	endif
 	
 	// interactive elements
@ -316,15 +349,88 @@ function ad_update_profiles(image)
 	return 0
 end

+/// switch cursors on a profiles graph
+///
+/// the standard cursors allow to select the profiles to display in the profiles panes.
+/// additional cursors are shown in the profiles panes.
+///
+/// in the background selection mode, additional cursors allow the user to select
+/// the limits of the background and peak integration regions.
+/// the meaning of the cursors depends on the particular processing function.
+///
+/// @param	mode			cursor mode.
+///	@arg	0 (default)		standard profile selection. cursors C-F on profile panes.
+///	@arg	1				background selection. cursors A-F on image.
+///
+/// @param	image			image displayed in the graph. 
+///							this is the original image, not the one in the view data folder.
+///
+function ad_profiles_cursor_mode(image, mode)
+	wave image
+	variable mode
+	
+	dfref savedf = GetDataFolderDFR()
+	wave view_image = get_view_image(image)
+	dfref viewdf = GetWavesDataFolderDFR(view_image)
+	svar /sdfr=viewdf graphname = prof_graphname
+	nvar /sdfr=viewdf cursor_mode = view_cursor_mode
+	wave /sdfr=viewdf xprofiles, yprofiles
+	
+	variable dx = DimSize(view_image, 0)
+	variable dy = DimSize(view_image, 1)
+	switch(mode)
+		case 1: // background selection
+			Cursor /w=$graphname /A=0 /P /I /S=2 /H=1 /L=1 A view_image 0, 0
+			Cursor /w=$graphname /A=0 /P /I /S=2 /H=1 /L=1 B view_image dx-1, dy-1
+			Cursor /w=$graphname /A=0 /P /I /S=2 /H=2 /L=1 C view_image round(0.2 * dx) -1, 0
+			Cursor /w=$graphname /A=0 /P /I /S=2 /H=2 /L=1 D view_image round(0.8 * dx) -1, 0
+			Cursor /w=$graphname /A=0 /P /I /S=2 /H=2 /L=1 E view_image round(0.4 * dx) -1, 0
+			Cursor /w=$graphname /A=0 /P /I /S=2 /H=2 /L=1 F view_image round(0.6 * dx) -1, 0
+
+			ShowInfo /w=$graphname /CP=0
+			cursor_mode = mode
+			break
+		default:
+			Cursor /w=$graphname /A=1 /P /I /S=2 /H=1 /L=1 A view_image 0,0
+			Cursor /w=$graphname /A=1 /P /I /S=2 /H=1 /L=1 B view_image dx-1, dy-1
+			variable pcurs
+			pcurs = floor(DimSize(xprofiles, 0) / 3)
+			Cursor /w=$graphname /A=0 /P /S=1 /H=0 C xprofiles#2 pcurs
+			pcurs = floor(DimSize(xprofiles, 0) * 2 / 3)
+			Cursor /w=$graphname /A=0 /P /S=1 /H=0 D xprofiles#2 pcurs
+			pcurs = floor(DimSize(yprofiles, 0) / 3)
+			Cursor /w=$graphname /A=0 /P /S=1 /H=0 E yprofiles#2 pcurs
+			pcurs = floor(DimSize(yprofiles, 0) * 2 / 3)
+			Cursor /w=$graphname /A=0 /P /S=1 /H=0 F yprofiles#2 pcurs
+			ShowInfo /w=$graphname /CP=0
+			cursor_mode = 0
+	endswitch
+	
+	setdatafolder savedf
+	return 0
+end
+
 /// move a cursor to the specified position in a profiles graph.
+///
+/// this function can only set cursors in the image part of the profiles graph.
+///
+/// @param image		image displayed in the graph. 
+///						this is the original image, not the one in the view data folder.
+/// @param cursorname	name of the cursor, e.g. "A" or "B".
+///						other cursors are allowed but need to be activated separately.
+/// @param xa			x-coordinate to move the cursor to.
+///						the position is coerced to the image scale. +/-inf is allowed.
+/// @param ya			y-coordinate to move the cursor to.
+///						the position is coerced to the image scale. +/-inf is allowed.
+/// @param pscale		scaling of the position argument
+///						@arg 0 (default) wave scaling
+///						@arg 1 point scaling
+///
 function ad_profiles_set_cursor(image, cursorname, xa, ya, [pscale])
-	wave image // image displayed in the graph. this is the original image, not the one in the view data folder.
-	string cursorname // name of the cursor. must be "A" or "B".
-	variable xa, ya // position to move the cursor to.
-		// the position is coerced to the image scale. +/-inf is allowed.
-	variable pscale // scaling of the position argument
-		// 0 (default) = wave scaling
-		// 1 = point scaling
+	wave image
+	string cursorname
+	variable xa, ya
+	variable pscale
 	
 	if (ParamIsDefault(pscale))
 		pscale = 0
@ -991,7 +1097,7 @@ function /s ad_display_brick(data)
 	setdatafolder viewdf
 	string dfname = ReplaceString("root:", s_datadf, "")
 	string graphtitle = dfname + " Gizmo"
-	string /g gizmo_graphname = CleanupName("giz_" + dfname, 0)
+	string /g gizmo_graphname = graphname_from_dfref(datadf, "giz_")
 	svar graphname = gizmo_graphname

 	if ((strlen(graphname) > 0) && (wintype(graphname) == 13))
@ -1115,13 +1221,32 @@ function ad_brick_slicer(data)
 	variable /g x_autoinc = 0
 	variable /g y_autoinc = 0
 	variable /g z_autoinc = 0
+
+	// axis labels	
+	string labels = note(data)
+	string xlabel = StringByKey("AxisLabelX", labels, "=", "\r")
+	if (!strlen(xlabel))
+		xlabel = "X"
+	endif
+	string ylabel = StringByKey("AxisLabelY", labels, "=", "\r")
+	if (!strlen(ylabel))
+		ylabel = "Y"
+	endif
+	string zlabel = StringByKey("AxisLabelZ", labels, "=", "\r")
+	if (!strlen(zlabel))
+		zlabel = "Z"
+	endif
+	string dlabel = StringByKey("Dataset", labels, "=", "\r")
+	if (!strlen(dlabel))
+		dlabel = NameOfWave(data)
+	endif
 	
 	// this section copied from slicer panel	
 	NewPanel /k=1 /W=(500,600,890,940) /N=SlicerPanel as "Brick Slicer"
 	string /g slicer_panelname = S_name
 	string panel = s_name
-	
-	GroupBox g_xslice win=$panel,pos={8,8},size={376,96},title="X Slice"
+
+	GroupBox g_xslice win=$panel,pos={8,8},size={376,96},title=xlabel
 	Slider sl_xslice_position win=$panel,pos={16,32},size={240,56},proc=PearlAreaDisplay#slp_slice_position
 	Slider sl_xslice_position win=$panel,limits={0,100,1},variable=x_slice_pos,vert= 0
 	SetVariable sv_xslice_position win=$panel,pos={20,80},size={92,16},proc=PearlAreaDisplay#svp_slice_position,title="X"
@ -1141,7 +1266,7 @@ function ad_brick_slicer(data)
 	Button b_xslice_stop win=$panel,pos={336,48},size={20,20},proc=PearlAreaDisplay#bp_move_slice,title="\\W616"
 	Button b_xslice_stop win=$panel,help={"stop animation"}
 	
-	GroupBox g_yslice win=$panel,pos={8,108},size={376,96},title="Y Slice"
+	GroupBox g_yslice win=$panel,pos={8,108},size={376,96},title=ylabel
 	Slider sl_yslice_position win=$panel,pos={16,132},size={240,56},proc=PearlAreaDisplay#slp_slice_position
 	Slider sl_yslice_position win=$panel,limits={0,100,1},variable=y_slice_pos,vert= 0
 	SetVariable sv_yslice_position win=$panel,pos={20,180},size={92,16},proc=PearlAreaDisplay#svp_slice_position,title="Y"
@ -1161,7 +1286,7 @@ function ad_brick_slicer(data)
 	Button b_yslice_stop win=$panel,pos={336,148},size={20,20},proc=PearlAreaDisplay#bp_move_slice,title="\\W616"
 	Button b_yslice_stop win=$panel,help={"stop animation"}
 	
-	GroupBox g_zslice win=$panel,pos={8,208},size={376,96},title="Z Slice"
+	GroupBox g_zslice win=$panel,pos={8,208},size={376,96},title=zlabel
 	Slider sl_zslice_position win=$panel,pos={16,232},size={240,56},proc=PearlAreaDisplay#slp_slice_position
 	Slider sl_zslice_position win=$panel,limits={0,100,1},variable=z_slice_pos,vert= 0
 	SetVariable sv_zslice_position win=$panel,pos={20,280},size={92,16},proc=PearlAreaDisplay#svp_slice_position,title="Z"
@ -1181,7 +1306,7 @@ function ad_brick_slicer(data)
 	Button b_zslice_stop win=$panel,pos={336,248},size={20,20},proc=PearlAreaDisplay#bp_move_slice,title="\\W616"
 	Button b_zslice_stop win=$panel,help={"stop animation"}

-	TitleBox t_slicerpath win=$panel,pos={8,316},size={128,20},disable=2,title=GetDataFolder(1,viewdf)
+	TitleBox t_slicerpath win=$panel,pos={8,316},size={128,20},disable=2,title=dlabel
 	//SetVariable setvar0 win=$panel,pos={240,316},size={120,16},title="slab thickness"
 	//SetVariable setvar0 win=$panel,limits={1,inf,1},value=slab_thickness
 	
--- a/pearl/pearl-area-import.ipf
+++ b/pearl/pearl-area-import.ipf
@ -3,23 +3,35 @@
 #pragma ModuleName = PearlAreaImport
 #pragma version = 1.06
 #include <HDF5 Browser>
-#include "pearl-gui-tools", version >= 1.01
+#include "pearl-gui-tools"

-// HDF5 file import from EPICS area detectors
-// such as CCD cameras, 2D electron analysers
+// copyright (c) 2013-16 Paul Scherrer Institut
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//   http:///www.apache.org/licenses/LICENSE-2.0

-// restriction: as of version 6.3, Igor can open datasets of up to rank 4.
-// i.e. the extra dimension Y of the file plugin cannot be used.
-// the extra dimensions N and X are supported.
+/// @file
+/// @brief HDF5 file import from EPICS area detectors
+/// @ingroup ArpesPackage
+///
+///
+/// HDF5 file import from EPICS area detectors
+/// such as CCD cameras, 2D electron analysers
+///
+/// as of Igor 6.3, Igor can open datasets of up to rank 4.
+/// i.e. the extra dimension Y of the file plugin cannot be used.
+/// the extra dimensions N and X are supported.

-// created: matthias.muntwiler@psi.ch, 2013-05-31
-// Copyright (c) 2013 Paul Scherrer Institut
-// $Id$
+/// @namespace PearlAreaImport
+/// @brief HDF5 file import from EPICS area detectors
+///
+/// PearlAreaImport is declared in @ref pearl-area-import.ipf.

-//------------------------------------------------------------------------------
+/// callback function for drag&drop of HDF5 files into Igor.
+///
 static function BeforeFileOpenHook(refNum,fileName,path,type,creator,kind)
-	// allows drag&drop of data files into an open igor window
-	// this works only with igor 5.02 or later
 	variable refNum, kind
 	string fileName, path, type, creator
 	
@ -57,20 +69,37 @@ static function BeforeFileOpenHook(refNum,fileName,path,type,creator,kind)
 	return handledOpen // 1 tells Igor not to open the file
 End

+/// generate the name of a data folder based on a file name.
+///
+/// if the file name follows the naming convention source-date-index.extension,
+/// the function tries to generate the nick name as source_date_index.
+/// otherwise it's just a cleaned up version of the file name.
+///
+/// date must be in yyyymmdd or yymmdd format and is clipped to the short yymmdd format.
+/// index should be a running numeric index of up to 6 digits, or the time encoded as hhmmss.
+/// however, in the current version index can be any string that can be a valid Igor folder name.
+///
+/// @param	filename		file name, including extension. can also include a folder path (which is ignored).
+///						the extension is currently ignored, but may be used to select the parent folder in a later version.
+/// @param	ignoredate	if non-zero, the nick name will not include the date part.
+///						defaults to zero.
+/// @param	sourcename	nick name of the data source.
+///						by default, the function tries to detect the source from the file name.
+///						this option can be used to override auto-detection.
+///						the automatic source names are: 
+///						sci (scienta by area detector), 
+///						psh (pshell),
+///						sl (optics slit camera by area detector),
+///						es (end station camera by area detector),
+///						xy (unidentified).
+/// @param	unique		if non-zero, the resulting name is made a unique data folder name in the current data folder
+///						defaults to zero.
+///
 function /s ad_suggest_foldername(filename, [ignoredate,sourcename,unique])
-	// suggests the name of a data folder based on a file name
-	// if the file name follows the naming convention source-date-index.extension,
-	// the function tries to generate the nick name as source_date_index.
-	// otherwise it's just a cleaned up version of the file name.
-	string filename // file name, including extension. can also include a folder path (which is ignored)
-		// the extension is currently ignored, but may be used later to select the parent folder
-	variable ignoredate // if non-zero, the nick name will not include the date part
-		// defaults to zero
-	string sourcename // nick name of the data source
-		// the function tries to detect the source from the file name
-		// this option can be used to override auto-detection
-	variable unique // if non-zero, the resulting name is made a unique data folder name in the current data folder
-		// defaults to zero
+	string filename
+	variable ignoredate
+	string sourcename
+	variable unique
 	
 	if (ParamIsDefault(ignoredate))
 		ignoredate = 0
@ -86,6 +115,8 @@ function /s ad_suggest_foldername(filename, [ignoredate,sourcename,unique])
 	string autosource
 	if (strsearch(basename, "scienta", 0, 2) >= 0)
 		autosource = "sci"
+	elseif (strsearch(basename, "pshell", 0, 2) >= 0)
+		autosource = "psh"
 	elseif (strsearch(basename, "OP-SL", 0, 2) >= 0)
 		autosource = "sl"
 	elseif (strsearch(basename, "ES-PS", 0, 2) >= 0)
@ -99,8 +130,12 @@ function /s ad_suggest_foldername(filename, [ignoredate,sourcename,unique])
 	
 	variable nparts = ItemsInList(basename, "-")
 	if (nparts >= 3)
-		string datepart = StringFromList(nparts - 2, basename, "-")
-		string indexpart = StringFromList(nparts - 1, basename, "-")
+		string datepart = StringFromList(1, basename, "-")
+		variable l_datepart = strlen(datepart)
+		if (l_datepart == 8)
+			datepart = datepart[l_datepart-6, l_datepart-1]
+		endif
+		string indexpart = StringFromList(2, basename, "-")
 		if (ignoredate)
 			sprintf nickname, "%s_%s", sourcename, indexpart
 		else
@ -117,10 +152,12 @@ function /s ad_suggest_foldername(filename, [ignoredate,sourcename,unique])
 	return nickname
 end

+/// load area detector data files selected in a file dialog window
+///
+/// @param  APathName	Igor symbolic path name.
+///						if empty, Igor will choose a folder on its own
 function ad_load_dialog(APathName)
-	// loads data files selected in a file dialog window
-	string APathName // igor symbolic path name
-		// if empty, Igor will choose a folder on its own
+	string APathName
 	
 	variable refNum
 	string message = "Select data files"
@ -148,17 +185,23 @@ function ad_load_dialog(APathName)
 	setdatafolder saveDF
 end

-//------------------------------------------------------------------------------
+/// import everything from a HDF5 file created by the Area Detector software.
+///
+/// if the data is from the electron analyser driver and some special attributes are included,
+/// the function will set the scales of the image dimensions.
+///
+/// @param ANickName	destination folder name (top level under root)
+/// @param APathName	igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
+/// @param AFileName	if empty a dialog box shows up
+/// @param load_data		1 (default): load data; 0: do not load data
+/// @param load_attr		1 (default): load attributes; 0: do not load attributes
+/// 						for proper wave scaling, the attributes must be loaded
 function /s adh5_load_complete(ANickName, APathName, AFileName, [load_data, load_attr])
-	// this function loads everything from a HDF5 file created by the Area Detector software.
-	// if the data is from the electron analyser driver and some special attributes are included,
-	// the function will set the scales of the image dimensions.
-	string ANickName // destination folder name (top level under root)
-	string APathName // igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
-	string AFileName // if empty a dialog box shows up
-	variable load_data // 1 (default): load data; 0: do not load data
-	variable load_attr // 1 (default): load attributes; 0: do not load attributes
-		// for proper wave scaling, the attributes must be loaded
+	string ANickName
+	string APathName
+	string AFileName
+	variable load_data
+	variable load_attr
 		
 	if (ParamIsDefault(load_data))
 		load_data = 1
@ -222,30 +265,43 @@ function /s adh5_load_complete(ANickName, APathName, AFileName, [load_data, load
 	return AFileName
 end

+/// load and reduce a dataset from a HDF5 file created by the Area Detector software.
+///
+/// the resulting dataset is reduced in one image dimension by a user-defined reduction function,
+/// e.g. by region-of-interest integration, curve fitting, etc.
+///
+/// the function loads the dataset image by image using the hyperslab option
+/// and applies a custom reduction function to each image.
+/// the results from the reduction function are composed into one result wave.
+/// the raw data are discarded.
+///
+/// if the data is from the electron analyser driver and some special attributes are included,
+/// the function will set the scales of the image dimensions.
+///
+/// @param ANickName		destination folder name (top level under root)
+/// @param APathName		igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
+/// @param AFileName		if empty a dialog box shows up
+///
+/// @param reduction_func		custom reduction function
+/// 							(any user-defined function which has the same parameters as adh5_default_reduction())
+/// @param reduction_param	parameter string for the reduction function
+///
+/// @param load_data			1 (default): load data; 0: do not load data
+/// @param load_attr			1 (default): load attributes; 0: do not load attributes
+///							for proper wave scaling, the attributes must be loaded
+/// @param progress			1 (default): show progress window; 0: do not show progress window
+///
 function /s adh5_load_reduced(ANickName, APathName, AFileName, reduction_func, reduction_param, [load_data, load_attr, progress])
-	// this function loads a reduced dataset from a HDF5 file created by the Area Detector software.
-	// the resulting dataset is reduced in one image dimension by a user-defined reduction function,
-	// e.g. by region-of-interest integration, curve fitting, etc.
+	string ANickName
+	string APathName
+	string AFileName

-	// the function loads the dataset image by image using the hyperslab option
-	// and applies a custom reduction function to each image.
-	// the results from the reduction function are composed into one result wave.
-	// the raw data are discarded.
+	funcref adh5_default_reduction reduction_func
+	string reduction_param

-	// if the data is from the electron analyser driver and some special attributes are included,
-	// the function will set the scales of the image dimensions.
-	string ANickName // destination folder name (top level under root)
-	string APathName // igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
-	string AFileName // if empty a dialog box shows up
-
-	funcref adh5_default_reduction reduction_func // custom reduction function
-		// (any user-defined function which has the same parameters as adh5_default_reduction())
-	string reduction_param // parameter string for the reduction function
-
-	variable load_data // 1 (default): load data; 0: do not load data
-	variable load_attr // 1 (default): load attributes; 0: do not load attributes
-		// for proper wave scaling, the attributes must be loaded
-	variable progress // 1 (default): show progress window; 0: do not show progress window
+	variable load_data
+	variable load_attr
+	variable progress
 		
 	if (ParamIsDefault(load_data))
 		load_data = 1
@ -306,18 +362,26 @@ function /s adh5_load_reduced(ANickName, APathName, AFileName, reduction_func, r
 	return AFileName
 end

+/// load a single image from a HDF5 file created by the Area Detector software.
+///
+/// the data wave is loaded into the current data folder.
+/// attributes are loaded into the attr subfolder. existing waves in attr are deleted.
+///
+/// @warning EXPERIMENTAL
+/// this function uses the root:pearl_area:preview data folder. existing data there may be deleted!
+///
+/// @param ANickName		destination wave name. the wave is created in the current data folder.
+/// @param APathName		igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
+/// @param AFileName		if empty a dialog box shows up
+/// @param load_data			1 (default): load data; 0: do not load data
+/// @param load_attr			1 (default): load attributes; 0: do not load attributes
+///							note: for correct scaling of the image, the attributes need to be loaded
 function /s adh5_load_preview(ANickName, APathName, AFileName, [load_data, load_attr])
-	// this function loads one image from a HDF5 file created by the Area Detector software.
-	// the data wave is loaded into the current data folder.
-	// attributes are loaded into the attr subfolder. existing waves in attr are deleted.
-	// EXPERIMENTAL
-	// this function uses the root:pearl_area:preview data folder. existing data there may be deleted!
-	string ANickName // destination wave name. the wave is created in the current data folder.
-	string APathName // igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
-	string AFileName // if empty a dialog box shows up
-	variable load_data // 1 (default): load data; 0: do not load data
-	variable load_attr // 1 (default): load attributes; 0: do not load attributes
-		// note: for correct scaling of the image, the attributes need to be loaded
+	string ANickName
+	string APathName
+	string AFileName
+	variable load_data
+	variable load_attr
 		
 	if (ParamIsDefault(load_data))
 		load_data = 1
@ -412,13 +476,19 @@ function /s adh5_load_preview(ANickName, APathName, AFileName, [load_data, load_
 	return AFileName
 end

+/// load descriptive info from a HDF5 file created by the Area Detector software.
+///
+/// the information returned is the array size and active scans
+///
+/// @attention EXPERIMENTAL
+/// this function should be merged with adh5_load_preview
+///
+/// @param APathName		igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
+/// @param AFileName		if empty a dialog box shows up
+///
 function /s adh5_load_info(APathName, AFileName)
-	// this function loads descriptive info from a HDF5 file created by the Area Detector software.
-	// the information returned is the array size and active scans
-	// EXPERIMENTAL
-	// this function should be merged with adh5_load_preview
-	string APathName // igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
-	string AFileName // if empty a dialog box shows up
+	string APathName
+	string AFileName
 		
 	dfref saveDF = GetDataFolderDFR()

@ -492,12 +562,17 @@ function /s adh5_load_info(APathName, AFileName)
 	return s_info
 end

+/// load the detector dataset from the open HDF5 file.
+///
+/// the function loads the whole dataset at once
+/// and redimensions it so that the image dimensions are X and Y
+///
+/// @param fileID				ID of open HDF5 file from HDF5OpenFile
+/// @param detectorpath		path to detector group in the HDF5 file
+///
 function adh5_load_detector(fileID, detectorpath)
-	// loads the detector dataset from the open HDF5 file
-	// the function loads the whole dataset at once
-	// and redimensions it so that the image dimensions are X and Y
-	variable fileID	// ID of open HDF5 file from HDF5OpenFile
-	string detectorpath // path to detector group in the HDF5 file
+	variable fileID
+	string detectorpath

 	// avoid compilation error if HDF5 XOP has not been loaded
 	#if Exists("HDF5LoadData")
@ -526,19 +601,22 @@ function adh5_load_detector(fileID, detectorpath)
 	#endif
 end

+/// redimension a multi-dimensional area detector array loaded from HDF5.
+///
+/// so that the image dimensions are X and Y
+/// singleton dimensions are removed (most common cases only)
+///
+/// in the redimensioned array, the original dimension type is noted in the dimension label:
+/// AD_Dim0 = first image dimension
+/// AD_Dim1 = second image dimension
+/// AD_DimN = frame sequence
+/// AD_DimX = extra dimension X
+/// AD_DimY = extra dimension Y (cannot be loaded in Igor)
+///
+/// @param data			area detector data loaded from HDF5 to be redimensioned
+///	
 function adh5_redim(data)
-	// redimensions a multi-dimensional area detector array loaded from HDF5
-	// so that the image dimensions are X and Y
-	// singleton dimensions are removed (most common cases only)
-	
-	// in the redimensioned array, the original dimension type is noted in the dimension label:
-	// AD_Dim0 = first image dimension
-	// AD_Dim1 = second image dimension
-	// AD_DimN = frame sequence
-	// AD_DimX = extra dimension X
-	// AD_DimY = extra dimension Y (cannot be loaded in Igor)
-	
-	wave data // area detector data loaded from HDF5 to be redimensioned
+	wave data
 	
 	duplicate /free data, tempdata
 	variable nd = wavedims(tempdata)
@ -608,29 +686,36 @@ function adh5_redim(data)
 	endswitch
 end

+/// find the attributes data folder of an area detector dataset.
+///
+/// since version 1.04 attributes should be stored in a subfolder named attr.
+/// earlier versions had the attributes in the same data folder as the actual dataset.
+///
+/// @param	data		wave containing the main dataset.
+///
+/// @return	data folder reference of the attributes folder. 
+///			the reference may be invalid (and default to root) if the folder cannot be found, 
+///			cf. built-in DataFolderRefStatus function.
 static function /DF GetAttrDataFolderDFR(data)
-	// returns a data folder reference to the ND attributes
-	// since version 1.04 attributes should be written in a subfolder named attr
-	// earlier versions had the attributes in the same data folder as the actual dataset
 	wave data
 	
-	dfref saveDF = GetDataFolderDFR()
 	dfref dataDF = GetWavesDataFolderDFR(data)
-	setdatafolder dataDF
-	if (DataFolderExists(":attr"))
-		setdatafolder :attr
+	dfref attrDF = dataDF:attr
+	if (DataFolderRefStatus(attrDF) == 0)
+		attrDF = dataDF
 	endif
-	dfref attrDF = GetDataFolderDFR()
-	setdatafolder saveDF
+	
 	return attrDF
 end

+/// set the dimension scales of an area detector dataset.
+///
+/// the intrinsic dimensions 0 and 1 are scaled according to the data source
+/// (currently supported: Prosilica cameras, Scienta electron analyser).
+/// the extra dimensions are scaled according to the scan.
+/// the latter requires that the positioner names and position values are available.
+///
 function adh5_scale(data,[source])
-	// tries to set the dimension scales of an area detector dataset.
-	// the intrinsic dimensions 0 and 1 are scaled according to the data source
-	// (currently supported: Prosilica cameras, Scienta electron analyser).
-	// the extra dimensions are scaled according to the scan.
-	// the latter requires that the positioner names and position values are available.
 	wave data
 	string source

@ -671,14 +756,23 @@ function adh5_scale(data,[source])
 	setdatafolder saveDF	
 end

+/// load the detector dataset from the open HDF5 file.
+///
+/// the function loads the dataset image by image using the hyperslab option.
+/// this function gives the same result as adh5_load_detector.
+/// it is about 5% slower, and it depends on HDF5 Browser code.
+/// but it does not choke on large datasets (as long as the final wave fits into memory).
+///
+/// @param	fileID		ID of open HDF5 file from HDF5OpenFile.
+/// @param	detectorpath	path to detector group in the HDF5 file.
+/// @param	progress		1 (default): show progress window; 0: do not show progress window.
+///
+/// @return	0 if successful, non-zero if an error occurred.
+///
 function adh5_load_detector_slabs(fileID, detectorpath, [progress])
-	// loads the detector dataset from the open HDF5 file
-	// the function loads the dataset image by image using the hyperslab option
-	// this function gives the same result as adh5_load_detector
-	// it is about 5% slower, and it depends on HDF5 Browser code.
-	variable fileID	// ID of open HDF5 file from HDF5OpenFile
-	string detectorpath // path to detector group in the HDF5 file
-	variable progress // 1 (default): show progress window; 0: do not show progress window
+	variable fileID
+	string detectorpath
+	variable progress
 	
 	if (ParamIsDefault(progress))
 		progress = 1
@ -821,23 +915,32 @@ function adh5_load_detector_slabs(fileID, detectorpath, [progress])
 	return result
 end

+/// load a single image from the detector dataset of the open HDF5 file
+///
+/// the function can average over a region in the extra dimensions.
+///
+/// @param fileID			ID of open HDF5 file from HDF5OpenFile
+/// @param detectorpath	path to detector group in the HDF5 file
+/// @param dim2start		2nd dimension coordinate of the first image
+///						note that the order of dimensions is reversed in the file
+///						2nd dimension = N dimension in area detector = dimension 0 of the three-dimensional HDF dataset
+///						set to 0 if dimension may not be present
+/// @param dim2count		number of subsequent images to average
+///						set to 1 if dimension  may not be present
+/// @param dim3start		3rd dimension coordinate of the first image
+///						note that the order of dimensions is reversed in the file
+///						3rd dimension = extra X dimension in area detector = dimension 0 of the four-dimensional HDF dataset
+///						set to 0 if dimension may not be present
+/// @param dim3count		number of subsequent images to average
+///						set to 1 if dimension may not be present
+///
 function adh5_load_detector_image(fileID, detectorpath, dim2start, dim2count, dim3start, dim3count)
-	// loads a single image from the detector dataset of the open HDF5 file
-	// the function can average over a region in the extra dimensions
-	variable fileID	// ID of open HDF5 file from HDF5OpenFile
-	string detectorpath // path to detector group in the HDF5 file
-	variable dim2start // 2nd dimension coordinate of the first image
-		// note that the order of dimensions is reversed in the file
-		// 2nd dimension = N dimension in area detector = dimension 0 of the three-dimensional HDF dataset
-		// set to 0 if dimension may not be present
-	variable dim2count // number of subsequent images to average
-		// set to 1 if dimension  may not be present
-	variable dim3start // 3rd dimension coordinate of the first image
-		// note that the order of dimensions is reversed in the file
-		// 3rd dimension = extra X dimension in area detector = dimension 0 of the four-dimensional HDF dataset
-		// set to 0 if dimension may not be present
-	variable dim3count // number of subsequent images to average
-		// set to 1 if dimension may not be present
+	variable fileID
+	string detectorpath
+	variable dim2start
+	variable dim2count
+	variable dim3start
+	variable dim3count
 	
 	// avoid compilation error if HDF5 XOP has not been loaded
 	#if Exists("HDF5LoadData")
@ -922,10 +1025,12 @@ function adh5_load_detector_image(fileID, detectorpath, dim2start, dim2count, di
 	#endif
 end

+/// get a list of functions which can be used as reduction functions.
+///
+/// the function evaluates only the function arguments,
+/// it may thus include functions which are not suitable as reduction functions.
+///
 function /s adh5_list_reduction_funcs()
-	// returns a list of functions which can be used as reduction functions
-	// the function evaluates only the function arguments,
-	// it may thus include functions which are not suitable as reduction functions.
 	string all_funcs = FunctionList("*", ";", "KIND:6,NPARAMS:4,VALTYPE:1")
 	string result = ""
 	
@ -960,26 +1065,35 @@ function /s adh5_list_reduction_funcs()
 	return result
 end

+/// function prototype for adh5_load_reduced_detector
+///
+/// derived functions reduce a two-dimensional dataset to a one-dimensional dataset,
+/// e.g. by ROI-integration, curve fitting, etc.
+// the resulting wave must have the same size as either dimension of the source image.
+///
+/// each destination wave is a one-dimensional intensity distribution.
+/// the function must redimension each of these waves to one of the image dimensions
+/// by calling the adh5_setup_profile() function.
+/// this function will also copy the scale information and dimension labels,
+/// which is important for the proper scaling of the result.
+///	
+/// the meaning of the data in dest1 and dest2 is up to the particular function,
+/// e.g. dest1 could hold the mean value and dest2 the one-sigma error,
+/// or dest1 could hold the X-profile, and dest2 the Y-profile.
+///
+/// @param source			source wave
+///							two-dimensional intensity distribution (image)
+/// @param dest1, dest2		destination waves
+/// @param param			string with optional parameters, shared between calls.
+///							this is a pass-by-reference argument,
+///							the function may modify the string
+///
+/// @return  zero if successful, non-zero if an error occurs.
+///
 threadsafe function adh5_default_reduction(source, dest1, dest2, param)
-	// function prototype for adh5_load_reduced_detector
-	// derived functions reduce a two-dimensional dataset to a one-dimensional dataset,
-	// e.g. by ROI-integration, curve fitting, etc.
-	// the resulting wave must have the same size as either dimension of the source image.
-	wave source // source wave
-		// two-dimensional intensity distribution (image)
-	wave dest1, dest2 // destination waves
-		// each wave is a one-dimensional intensity distribution
-		// the function must redimension each of these waves to one of the image dimensions
-		// by calling the adh5_setup_profile() function.
-		// this function will also copy the scale information and dimension labels,
-		// which is important for the proper scaling of the result.
-		
-		// the meaning of the data in dest1 and dest2 is up to the particular function,
-		// e.g. dest1 could hold the mean value and dest2 the one-sigma error,
-		// or dest1 could hold the X-profile, and dest2 the Y-profile.
-	string &param // string with optional parameters, shared between calls
-		// this is a pass-by-reference argument,
-		// the function may modify the string
+	wave source
+	wave dest1, dest2
+	string &param
 	
 	// demo code
 	// integrate along the dimensions	
@ -988,13 +1102,15 @@ threadsafe function adh5_default_reduction(source, dest1, dest2, param)
 	adh5_setup_profile(source, dest2, 1)
 	ad_profile_y_w(source, 0, -1, dest2)
 	
-	return 0 // return zero if successful, non-zero if an error occurs
+	return 0
 end

+/// set up a one-dimensional wave for a line profile based on a 2D original wave.
+///
+/// redimensions the profile wave to the given dimension.
+/// copies the scale and dimension label of the given dimension.
+///
 threadsafe function adh5_setup_profile(image, profile, dim)
-	// sets up a one-dimensional wave for a line profile based on a 2D original wave
-	// redimensions the profile wave to the given dimension
-	// copies the scale and dimension label of the given dimension
 	wave image // prototype
 	wave profile // destination wave
 	variable dim // which dimension to keep: 0 = X, 1 = Y
@ -1005,10 +1121,11 @@ threadsafe function adh5_setup_profile(image, profile, dim)
 	setdimlabel 0, -1, $getdimlabel(image, dim, -1), profile
 end

+/// wrapper function for testing reduction functions from the command line.
+///
+/// Igor does not allow global variables as pass-by-reference parameter for reduction_param.
+///
 function /s adh5_test_reduction_func(source, dest1, dest2, reduction_func, reduction_param)
-	// wrapper function for testing reduction functions from the command line.
-	// Igor does not allow global variables as pass-by-reference parameter for reduction_param.
-
 	wave source
 	wave dest1
 	wave dest2
@ -1020,28 +1137,35 @@ function /s adh5_test_reduction_func(source, dest1, dest2, reduction_func, reduc
 	return reduction_param
 end

+/// load a reduced detector dataset from the open HDF5 file.
+///
+/// the function loads the dataset image by image using the hyperslab option
+/// and applies a custom reduction function to each image.
+/// the results from the reduction function are composed into one result wave.
+/// the raw data are discarded.
+///	
+/// by default, the reduction function is called in separate threads to reduce the total loading time.
+/// (see the global variable adh5_perf_secs which reports the total run time of the function.)
+/// the effect varies depending on the balance between file loading (image size)
+/// and data processing (complexity of the reduction function).
+/// for debugging the reduction function, multi-threading can be disabled.
+///
+/// @param fileID				ID of open HDF5 file from HDF5OpenFile
+/// @param detectorpath		path to detector group in the HDF5 file
+/// @param reduction_func		custom reduction function
+///							(any user-defined function which has the same parameters as adh5_default_reduction())
+/// @param reduction_param	parameter string for the reduction function
+/// @param progress			1 (default): show progress window; 0: do not show progress window
+/// @param nthreads			-1 (default): use as many threads as there are processor cores (in addition to main thread)
+///							0: use main thread only (e.g. for debugging the reduction function)
+///							>= 1: use a fixed number of (additional) threads
 function adh5_load_reduced_detector(fileID, detectorpath, reduction_func, reduction_param, [progress, nthreads])
-	// loads a reduced detector dataset from the open HDF5 file
-	// the function loads the dataset image by image using the hyperslab option
-	// and applies a custom reduction function to each image.
-	// the results from the reduction function are composed into one result wave.
-	// the raw data are discarded.
-	
-	// by default, the reduction function is called in separate threads to reduce the total loading time.
-	// (see the global variable adh5_perf_secs which reports the total run time of the function.)
-	// the effect varies depending on the balance between file loading (image size)
-	// and data processing (complexity of the reduction function).
-	// for debugging the reduction function, multi-threading can be disabled.
-	
-	variable fileID	// ID of open HDF5 file from HDF5OpenFile
-	string detectorpath // path to detector group in the HDF5 file
-	funcref adh5_default_reduction reduction_func // custom reduction function
-		// (any user-defined function which has the same parameters as adh5_default_reduction())
-	string reduction_param // parameter string for the reduction function
-	variable progress // 1 (default): show progress window; 0: do not show progress window
-	variable nthreads // -1 (default): use as many threads as there are processor cores (in addition to main thread)
-		// 0: use main thread only (e.g. for debugging the reduction function)
-		// >= 1: use a fixed number of (additional) threads
+	variable fileID
+	string detectorpath
+	funcref adh5_default_reduction reduction_func
+	string reduction_param
+	variable progress
+	variable nthreads
 		
 	if (ParamIsDefault(progress))
 		progress = 1
@ -1340,17 +1464,21 @@ threadsafe static function reduce_slab_image(slabdata, image, profile1, profile2
 	return reduction_func(image, profile1, profile2, reduction_param)
 end

+/// load an NDAttributes group from an open HDF5 file into the current data folder.
+///
+/// datasets contained in the group are loaded as waves.
+/// if a dataset contains only one data point, it is added to the IN, ID, IV, IU waves,
+/// where IN = EPICS channel name, ID = attribute name, IV = value, IU = unit
+/// (units are left empty as they are not saved in HDF5).
+/// attributes of the NDAttributes group are added to the IN, ID, IV, IU waves,
+/// however, IN and IU are left empty as this information is not saved in the HDF5 file.
+///
+/// @param fileID				ID of open HDF5 file from HDF5OpenFile
+/// @param attributespath		path to NDAttributes group in the HDF5 file
+///
 function adh5_loadattr_all(fileID, attributespath)
-	// loads an NDAttributes group from an open HDF5 file into the current data folder.
-	// datasets contained in the group are loaded as waves.
-	// if a dataset contains only one data point, it is added to the IN, ID, IV, IU waves,
-	// where IN = EPICS channel name, ID = attribute name, IV = value, IU = unit
-	// (units are left empty as they are not saved in HDF5).
-	// attributes of the NDAttributes group are added to the IN, ID, IV, IU waves,
-	// however, IN and IU are left empty as this information is not saved in the HDF5 file.
-
-	variable fileID	// ID of open HDF5 file from HDF5OpenFile
-	string attributespath // path to NDAttributes group in the HDF5 file
+	variable fileID
+	string attributespath

 	string datasetname
 	string datawavename
@ -1417,11 +1545,20 @@ function adh5_loadattr_all(fileID, attributespath)
 		
 end

+/// sub-function of adh5_loadattr_all.
+///
+/// reads one attribute from a wave which was loaded from an HDF5 file into the info waves IN, ID, IV, IU.
+/// the attribute is read only if the input wave contains exactly one item,
+/// i.e. either the measurement is a single image, or the attribute has string type.
+///
+/// @param datawavename		name of the attribute wave in the current folder.
+///							can be text or numeric.
+/// @param source			source identifier (EPICS name) of the attribute.
+/// @param idest				destination index in IN, ID, IV, IU where the results are written.
+///							the variable is incremented if data was written, otherwise it is left unchanged.
+///							make sure IN, ID, IV, IU have at least idest + 1 elements.
+///
 static function read_attribute_info(datawavename, source, idest)
-	// sub-function of adh5_loadattr_all.
-	// reads one attribute from a wave which was loaded from an HDF5 file into the info waves IN, ID, IV, IU.
-	// the attribute is read only if the input wave contains exactly one item,
-	// i.e. either the measurement is a single image, or the attribute has string type.
 	string datawavename // name of the attribute wave in the current folder.
 		// can be text or numeric.
 	string source
@ -1467,12 +1604,14 @@ static function read_attribute_info(datawavename, source, idest)
 	endif
 end

+/// set the energy and angle scales of an area detector dataset from the Scienta analyser.
+///
+/// the dimension labels of the energy and angle scales must be set correctly:
+/// AD_Dim0 = energy dimension; AD_Dim1 = angle dimension.
+/// these dimensions must be the first two dimensions of a multi-dimensional dataset.
+/// normally, AD_Dim0 is the X dimension, and AD_Dim1 the Y dimension.
+///
 function adh5_scale_scienta(data)
-	// sets the energy and angle scales of an area detector dataset from the Scienta analyser
-	// the dimension labels of the energy and angle scales must be set correctly:
-	// AD_Dim0 = energy dimension; AD_Dim1 = angle dimension
-	// these dimensions must be the first two dimensions of a multi-dimensional dataset.
-	// normally, AD_Dim0 is the X dimension, and AD_Dim1 the Y dimension.
 	wave data
 	
 	dfref saveDF = GetDataFolderDFR()
@ -1528,12 +1667,12 @@ function adh5_scale_scienta(data)
 			case 1: // Angular45
 				ALow = -45/2
 				AHigh = +45/2
-				AUnit = "deg"
+				AUnit = "°"
 				break
 			case 2: // Angular60
 				ALow = -60/2
 				AHigh = +60/2
-				AUnit = "deg"
+				AUnit = "°"
 				break
 		endswitch
 	endif
@ -1571,11 +1710,13 @@ function adh5_scale_scienta(data)
 	setdatafolder saveDF
 end

+/// scales the extra dimensions of an area detector dataset according to the EPICS scan
+///
+/// the scan positioner name and its values must be available
+///	
+/// @todo incomplete
+///
 function adh5_scale_scan(data)
-	// scales the extra dimensions of an area detector dataset according to the EPICS scan
-	// the scan positioner name and its values must be available
-	
-	// TODO: incomplete
 	wave data

 	dfref saveDF = GetDataFolderDFR()
--- a/pearl/pearl-area-live.ipf
+++ b/pearl/pearl-area-live.ipf
@ -1,368 +0,0 @@
-#pragma rtGlobals=3		// Use modern global access method and strict wave access.
-#pragma IgorVersion = 6.1
-#pragma ModuleName = PearlAreaLive
-#pragma version = 1.03
-#include "pearl-epics", version >= 1.02
-
-// preview panel for EPICS area detectors
-// such as CCD cameras, 2D electron analysers
-// the image is read from the NDPluginStdArrays plugin of the area detector
-// make sure that plugin is enabled
-
-// created: matthias.muntwiler@psi.ch, 2013-05-29
-// $Id$
-
-static strconstant package_name = "pearl_epics"
-static strconstant package_path = "root:pearl_epics:"
-// semicolon-separated list of persistent variable, string, and wave names
-static strconstant prefs_objects = ""
-
-function ad_connect(epicsname, nickname)
-	// connects to the necessary EPICS channels of the detector
-	// to disconnect, call epics_disconnect()
-	// (caution: this will disconnect all EPICS channels of all PEARL EPICS procedures!)
-	string epicsname // base name of the detector, e.g. X03DA-SCIENTA:
-		// image1: and cam1: are appended by the function
-	string nickname // nick name under which this detector is referred to in Igor
-		// must be a valid data folder name
-		// the data folder is created under root:pearl_epics
-	
-	dfref savedf = GetDataFolderDFR()
-	setdatafolder root:
-	
-	// data folder for common EPICS metadata
-	newdatafolder /o/s $package_name
-	dfref epicsdf = GetDataFolderDFR()
-	string /g ad_chids
-	string /g ad_nicknames
-	
-	// data folder this detector
-	string foldername = nickname
-	newdatafolder /s/o $foldername
-	dfref detectordf = GetDataFolderDFR()
-
-	// create variables and waves
-	make /n=(1)/o arraydata, xscale, yscale
-	make /n=(1,1)/o image
-	variable /g ndimensions
-	variable /g arraysize0, arraysize1
-	variable /g datatype
-	variable /g colormode
-	string /g controls, monitors
-	string /g xunits, yunits
-	
-	print "connecting EPICS channels..."
-	
-	// channel lists
-	controls = ""
-	monitors = ""
-	string imagename = epicsname + "image1:"
-	string camname = epicsname + "cam1:"
-
-	// we will set our own monitor on ArrayData, so add this to the controls list
-	controls = ReplaceStringByKey("ArrayData", controls, imagename + "ArrayData", "=")
-	// check whether it has been set already
-	variable chidArrayData = epics_chid(imagename + "ArrayData")
-	variable array_connected = chidArrayData > 0
-	
-	monitors = ReplaceStringByKey("NDimensions", monitors, imagename + "NDimensions_RBV", "=")
-	monitors = ReplaceStringByKey("ArraySize0", monitors, imagename + "ArraySize0_RBV", "=")
-	monitors = ReplaceStringByKey("ArraySize1", monitors, imagename + "ArraySize1_RBV", "=")
-	monitors = ReplaceStringByKey("DataType", monitors, imagename + "DataType_RBV", "=")
-	monitors = ReplaceStringByKey("ColorMode", monitors, imagename + "ColorMode_RBV", "=")
-	monitors = ReplaceStringByKey("XScale", monitors, camname + "CHANNEL_SCALE_RBV", "=")
-	monitors = ReplaceStringByKey("YScale", monitors, camname + "SLICE_SCALE_RBV", "=")
-
-	variable nroi = 4
-	variable iroi
-	string roikey, roiname
-	for (iroi = 0; iroi < nroi; iroi += 1)
-		roikey = "ROI" + num2str(iroi + 1)
-		roiname = epicsname + "ROI" + num2str(iroi + 1) + ":"
-
-		controls = ReplaceStringByKey(roikey + "Enable", controls, roiname + "EnableCallbacks", "=")
-		controls = ReplaceStringByKey(roikey + "EnableX", controls, roiname + "EnableX", "=")
-		controls = ReplaceStringByKey(roikey + "MinX", controls, roiname + "MinX", "=")
-		controls = ReplaceStringByKey(roikey + "SizeX", controls, roiname + "SizeX", "=")
-		controls = ReplaceStringByKey(roikey + "EnableY", controls, roiname + "EnableY", "=")
-		controls = ReplaceStringByKey(roikey + "MinY", controls, roiname + "MinY", "=")
-		controls = ReplaceStringByKey(roikey + "SizeY", controls, roiname + "SizeY", "=")
-
-		monitors = ReplaceStringByKey(roikey + "Enable", monitors, roiname + "EnableCallbacks_RBV", "=")
-		monitors = ReplaceStringByKey(roikey + "EnableX", monitors, roiname + "EnableX_RBV", "=")
-		monitors = ReplaceStringByKey(roikey + "MinX", monitors, roiname + "MinX_RBV", "=")
-		monitors = ReplaceStringByKey(roikey + "SizeX", monitors, roiname + "SizeX_RBV", "=")
-		monitors = ReplaceStringByKey(roikey + "EnableY", monitors, roiname + "EnableY_RBV", "=")
-		monitors = ReplaceStringByKey(roikey + "MinY", monitors, roiname + "MinY_RBV", "=")
-		monitors = ReplaceStringByKey(roikey + "SizeY", monitors, roiname + "SizeY_RBV", "=")
-	endfor
-
-	// connect EPICS channels
-	epics_connect(controls, monitors)
-	
-	// keep track of detector IDs
-	ad_nicknames = AddListItem(nickname, ad_nicknames)
-	variable iad = WhichListItem(nickname, ad_nicknames, ";", 0, 0)
-	ad_chids = AddListItem(num2istr(epics_chid(imagename + "ArrayData")), ad_chids, ";", iad)
-	
-	// set callback function
-	if (!array_connected)
-		pvMonitor /F=ad_live_callback epics_chid(imagename + "ArrayData")
-	endif
-	
-	print "...done"
-	setdatafolder savedf
-end
-
-function ad_live_callback(chan)
-	variable chan
-
-	dfref savedf = GetDataFolderDFR()
-	setdatafolder $package_path
-
-	// find the data folder of the detector
-	svar ad_chids
-	svar ad_nicknames
-	variable iad = WhichListItem(num2istr(chan), ad_chids, ";", 0, 0)
-	if (iad >= 0)
-		string nickname = StringFromList(iad, ad_nicknames)
-	else
-		return -1
-	endif
-	setdatafolder $nickname
-
-	// retrieve data
-	svar controls
-	svar monitors
-	variable chidArrayData = epics_chid(StringByKey("ArrayData", controls, "="))
-	variable chidNDimensions = epics_chid(StringByKey("NDimensions", monitors, "="))
-	variable chidArraySize0 = epics_chid(StringByKey("ArraySize0", monitors, "="))
-	variable chidArraySize1 = epics_chid(StringByKey("ArraySize1", monitors, "="))
-	variable chidDataType = epics_chid(StringByKey("DataType", monitors, "="))
-	variable chidColorMode = epics_chid(StringByKey("ColorMode", monitors, "="))
-	variable chidXScale = epics_chid(StringByKey("XScale", monitors, "="))
-	variable chidYScale = epics_chid(StringByKey("YScale", monitors, "="))
-
-	wave arraydata
-	wave image
-	nvar ndimensions
-	nvar arraysize0
-	nvar arraysize1
-	nvar datatype
-	nvar colormode
-	wave xscale
-	wave yscale
-	
-	pvGet chidNDimensions, ndimensions
-	pvGet chidArraySize0, arraysize0
-	pvGet chidArraySize1, arraysize1
-	pvGet chidDataType, datatype
-	pvGet chidColorMode, colormode
-	
-	// sanity checks
-	if (ndimensions != 2)
-		return -2
-	endif
-	if (colormode != 0)
-		return -3
-	endif
-	
-	redimension /n=(arraysize0 * arraysize1) arraydata
-	redimension /n=(arraysize0, arraysize1) image
-	redimension /n=(arraysize0) xscale
-	redimension /n=(arraysize1) yscale
-	
-	switch(datatype)
-		case 0: // int8
-			redimension /b arraydata, image
-			break
-		case 1: // uint8
-			redimension /b/u arraydata, image
-			break
-		case 2: // int16
-			redimension /w arraydata, image
-			break
-		case 3: // uint16
-			redimension /w/u arraydata, image
-			break
-		case 4: // int32
-			redimension /i arraydata, image
-			break
-		case 5: // uint32
-			redimension /i/u arraydata, image
-			break
-		case 6: // float32
-			redimension /s arraydata, image
-			break
-		case 7: // float64
-			redimension /d arraydata, image
-			break
-	endswitch
-	
-	pvGetWave chidArrayData, arraydata
-	pvGetWave chidXScale, xscale
-	pvGetWave chidYScale, yscale
-	
-	image = arraydata[p + q * arraysize0]
-	setscale /i x xscale[0], xscale[numpnts(xscale)-1], image
-	setscale /i y yscale[0], yscale[numpnts(yscale)-1], image
-	
-	ad_update_profiles(image)
-
-	// update ROI rectangles
-	svar /z graphname = :view_image:prof_graphname
-	if (svar_exists(graphname))
-		variable nroi = 4
-		variable iroi
-		for (iroi = 0; iroi < nroi; iroi += 1)
-			ad_update_ROI(graphname, iroi)
-		endfor
-	endif
-	
-	setdatafolder savedf
-	return 0
-end
-
-static function ad_update_ROI(graphname, iroi)
-	string graphname
-	variable iroi
-	
-	string roikey
-	variable enable
-	svar monitors
-
-	wave xscale
-	wave yscale
-	
-	variable enableX = 0
-	variable minX = 0
-	variable sizeX = numpnts(xscale)
-
-	variable enableY = 0
-	variable minY = 0
-	variable sizeY =  numpnts(yscale)
-
-	roikey = "ROI" + num2str(iroi + 1)
-	enable =	 epics_get_num(StringByKey(roikey + "Enable", monitors, "="))
-	if (enable)
-		enableX = epics_get_num(StringByKey(roikey + "EnableX", monitors, "="))
-		if (enableX)
-			minX = epics_get_num(StringByKey(roikey + "MinX", monitors, "="))
-			sizeX = epics_get_num(StringByKey(roikey + "SizeX", monitors, "="))
-		endif
-		
-		enableY = epics_get_num(StringByKey(roikey + "EnableY", monitors, "="))
-		if (enableY)
-			minY = epics_get_num(StringByKey(roikey + "MinY", monitors, "="))
-			sizeY = epics_get_num(StringByKey(roikey + "SizeY", monitors, "="))
-		endif
-		
-		variable x1 = xscale[minX]
-		variable x2 = xscale[minX + sizeX - 1]
-		variable y1 = yscale[minY]
-		variable y2 = yscale[minY + sizeY - 1]
-	endif
-	
-	ad_update_ROI_rect(graphname, iroi, x1, y1, x2, y2, enable)
-end
-
-static function ad_update_ROI_rect(graphname, iroi, x1, y1, x2, y2, enable)
-	string graphname
-	variable iroi // 0...3
-	variable x1,y1,x2,y2
-	variable enable // enable = 1; disable = 0
-	string roiname = "roi" + num2str(iroi + 1)
-	variable color = 65536 * (1 - iroi/8) - 1
-	
-	if (enable)
-		DrawAction /w=$graphname getgroup=$roiname, delete, begininsert
-		SetDrawEnv /w=$graphname gstart,gname=$roiname
-		SetDrawEnv /w=$graphname xcoord= bottom,ycoord= left
-		SetDrawEnv /w=$graphname linefgc= (65535,color,color)
-		SetDrawEnv /w=$graphname fillpat= 0
-		SetDrawEnv /w=$graphname linethick= 0.50
-		DrawRect /w=$graphname x1,y1,x2,y2
-		SetDrawEnv /w=$graphname gstop
-		DrawAction /w=$graphname endinsert
-	else
-		DrawAction /w=$graphname getgroup=$roiname, delete
-	endif
-end
-
-function ad_set_ROI(nickname, iroi, p1, q1, p2, q2, enable)
-	// set a ROI rectangle to the given coordinates
-	string nickname
-	variable iroi // 0...3
-	variable p1,q1,p2,q2 // rectangular coordinates of the new ROI (point scaling)
-	variable enable // enable = 1; disable = 0
-
-	string roiname = "roi" + num2str(iroi + 1)
-	string roikey
-
-	dfref savedf = GetDataFolderDFR()
-	setdatafolder $package_path
-	setdatafolder $nickname
-	
-	svar controls
-	wave xscale
-	wave yscale
-
-	variable minX = min(p1, p2)
-	variable sizeX = max(p1, p2) - min(p1, p2) + 1
-	variable enableX = sizeX > 0
-	variable minY = min(q1, q2)
-	variable sizeY =  max(q1, q2) - min(q1, q2) + 1
-	variable enableY =  sizeY > 0
-
-	roikey = "ROI" + num2str(iroi + 1)
-	epics_set_num(StringByKey(roikey + "Enable", controls, "="), enable)
-	if (enable)
-		epics_set_num(StringByKey(roikey + "EnableX", controls, "="), enableX)
-		if (enableX)
-			epics_set_num(StringByKey(roikey + "MinX", controls, "="), minX)
-			epics_set_num(StringByKey(roikey + "SizeX", controls, "="), sizeX)
-		endif
-		
-		epics_set_num(StringByKey(roikey + "EnableY", controls, "="), enableY)
-		if (enableY)
-			epics_set_num(StringByKey(roikey + "MinY", controls, "="), minY)
-			epics_set_num(StringByKey(roikey + "SizeY", controls, "="), sizeY)
-		endif
-	endif
-	
-	svar graphname = :view_image:prof_graphname
-	ad_update_ROI(graphname, iroi)
-	
-	setdatafolder savedf
-end
-
-function add_roi_controls()
-	PopupMenu pm_set_roi mode=0,value="ROI 1;ROI 2;ROI 3;ROI 4",title="Set ROI"
-	PopupMenu pm_set_roi pos={400,0},bodyWidth=60,proc=PearlAreaLive#pmp_set_roi
-	PopupMenu pm_set_roi help={"Set a detector ROI to the current cursor selection"}
-end
-
-
-static function pmp_set_roi(pa) : PopupMenuControl
-	STRUCT WMPopupAction &pa
-
-	switch( pa.eventCode )
-		case 2: // mouse up
-			variable popNum = pa.popNum
-			string imgname = StringFromList(0, ImageNameList(pa.win, ";"))
-			wave /z image = ImageNameToWaveRef(pa.win, imgname)
-			if (waveexists(image))
-				wave /z source = PearlAreaDisplay#get_source_image(image)
-				if (waveexists(source))
-					dfref sourcedf = GetWavesDataFolderDFR(source)
-					string nickname = GetDataFolder(0, sourcedf)
-					ad_set_ROI(nickname, popNum - 1, pcsr(A, pa.win), qcsr(A, pa.win), pcsr(B, pa.win), qcsr(B, pa.win), 1)
-				endif
-			endif
-			break
-		case -1: // control being killed
-			break
-	endswitch
-
-	return 0
-End
--- a/pearl/pearl-area-profiles-test.ipf
+++ b/pearl/pearl-area-profiles-test.ipf
@ -1,454 +0,0 @@
-#pragma rtGlobals=3		// Use modern global access method and strict wave access.
-#pragma IgorVersion = 6.1
-#pragma ModuleName = PearlAreaProfilesTest
-#pragma version = 1.02
-
-#include "pearl-area-profiles"
-#include "unit-testing"
-
-
-/// @file
-/// @brief test suite for pearl-area-profiles.ipf
-///
-/// unit testing framework: http://www.igorexchange.com/project/unitTesting.
-/// run all test cases with <code>RunTest("pearl-area-profiles-test.ipf")</code>.
-/// if wave equalities fail, EnableDebugOutput() and read Igor help on equalWaves().
-///
-/// @author matthias muntwiler, matthias.muntwiler@psi.ch
-///
-/// @copyright 2013-15 Paul Scherrer Institut @n
-/// Licensed under the Apache License, Version 2.0 (the "License"); @n
-///   you may not use this file except in compliance with the License. @n
-///   You may obtain a copy of the License at
-///   http://www.apache.org/licenses/LICENSE-2.0
-
-/// @namespace PearlAreaProfilesTest
-/// @brief profile extraction for multi-dimensional datasets acquired from area detectors.
-///
-/// PearlAreaProfilesTest is declared in @ref pearl-area-profiles-test.ipf.
-///
-
-
-/// test the ad_profile_x() function
-static function test_ad_profile_x_w()
-	make /n=(11,21) /d /free source
-	setscale /p x 10, 1, "X", source
-	setscale /p y 100, 100, "Y", source
-	setscale d 0, 0, "D", source
-	source = x + y
-	
-	make /n=11 /d /free expected
-	setscale /p x 10, 1, "X", expected
-	setscale d 0, 0, "D", expected
-	expected = 30 + 3 * p + 500 + 600 + 700
-	
-	make /n=1 /d /free result1, result0
-	variable p1, p2
-	
-	p1 = 4
-	p2 = 6
-	ad_profile_x_w(source, p1, p2, result1, noavg=1)
-	CHECK_EQUAL_WAVES(result1, expected, tol=1e-6)
-	
-	expected /= 3
-	ad_profile_x_w(source, p1, p2, result0, noavg=0)
-	CHECK_EQUAL_WAVES(result0, expected, tol=1e-6)
-end
-
-/// test the ad_profile_y() function
-static function test_ad_profile_y_w()
-	make /n=(11,21) /d /free source
-	setscale /p x 10, 1, "X", source
-	setscale /p y 100, 100, "Y", source
-	setscale d 0, 0, "D", source
-	source = x + y
-	
-	make /n=21 /d /free expected
-	setscale /p x 100, 100, "Y", expected
-	setscale d 0, 0, "D", expected
-	expected = 3 * x + 14 + 15 + 16
-	
-	make /n=1 /d /free result1, result0
-	variable p1, p2
-	
-	p1 = 4
-	p2 = 6
-	ad_profile_y_w(source, p1, p2, result1, noavg=1)
-	CHECK_EQUAL_WAVES(result1, expected)
-	
-	expected /= 3
-	ad_profile_y_w(source, p1, p2, result0, noavg=0)
-	CHECK_EQUAL_WAVES(result0, expected)
-end
-
-/// test the ad_extract_slab_x() function
-static function test_ad_extract_slab_x()
-	variable nx = 11
-	variable ny = 16
-	variable nz = 21
-	make /n=(nx,ny,nz) /d /free source
-	setscale /i x -1, 1, "X", source
-	setscale /i y -2, 2, "Y", source
-	setscale /i z -3, 3, "Z", source
-	setscale d 0, 0, "D", source
-	source = x + y + z
-	source[4][][] = 1
-	source[5][][] = 1
-	
-	make /n=(ny,nz) /d /free expected
-	setscale /i x -2, 2, "Y", expected
-	setscale /i y -3, 3, "Z", expected
-	setscale d 0, 0, "D", expected
-	expected = 2
-	
-	variable p1, p2
-	p1 = 4
-	p2 = 5
-	
-	wave result = ad_extract_slab_x(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	expected = 1
-	wave result = ad_extract_slab_x(source, p1, p2, "", noavg=0)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-	
-	p1 = -inf
-	p2 = 5
-	source = y + z
-	expected = (x + y) * 6
-	wave result = ad_extract_slab_x(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-	
-	p1 = 4
-	p2 = +inf
-	expected = (x + y) * (nx - 4)
-	wave result = ad_extract_slab_x(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-end
-
-/// test the ad_extract_slab_y() function
-static function test_ad_extract_slab_y()
-	variable nx = 11
-	variable ny = 16
-	variable nz = 21
-	make /n=(nx,ny,nz) /d /free source
-	setscale /i x -1, 1, "X", source
-	setscale /i y -2, 2, "Y", source
-	setscale /i z -3, 3, "Z", source
-	setscale d 0, 0, "D", source
-	source = x + y + z
-	source[][4][] = 1
-	source[][5][] = 1
-	
-	make /n=(nx,nz) /d /free expected
-	setscale /i x -1, 1, "X", expected
-	setscale /i y -3, 3, "Z", expected
-	setscale d 0, 0, "D", expected
-	expected = 2
-	
-	variable p1, p2
-	p1 = 4
-	p2 = 5
-	
-	wave result = ad_extract_slab_y(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	expected = 1
-	wave result = ad_extract_slab_y(source, p1, p2, "", noavg=0)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-	
-	p1 = -inf
-	p2 = 5
-	source = x + z
-	expected = (x + y) * 6
-	wave result = ad_extract_slab_y(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-	
-	p1 = 4
-	p2 = +inf
-	expected = (x + y) * (ny - 4)
-	wave result = ad_extract_slab_y(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-end
-
-/// test the ad_extract_slab_z() function
-static function test_ad_extract_slab_z()
-	variable nx = 11
-	variable ny = 16
-	variable nz = 21
-	make /n=(nx,ny,nz) /d /free source
-	setscale /i x -1, 1, "X", source
-	setscale /i y -2, 2, "Y", source
-	setscale /i z -3, 3, "Z", source
-	setscale d 0, 0, "D", source
-	source = x + y + z
-	source[][][4] = 1
-	source[][][5] = 1
-	
-	make /n=(nx,ny) /d /free expected
-	setscale /i x -1, 1, "X", expected
-	setscale /i y -2, 2, "Y", expected
-	setscale d 0, 0, "D", expected
-	expected = 2
-	
-	variable p1, p2
-	p1 = 4
-	p2 = 5
-	
-	wave result = ad_extract_slab_z(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	expected = 1
-	wave result = ad_extract_slab_z(source, p1, p2, "", noavg=0)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-	
-	p1 = -inf
-	p2 = 5
-	source = x + y
-	expected = (x + y) * 6
-	wave result = ad_extract_slab_z(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-	
-	p1 = 4
-	p2 = +inf
-	expected = (x + y) * (nz - 4)
-	wave result = ad_extract_slab_z(source, p1, p2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-end
-
-/// test the ad_extract_slab() function
-static function test_ad_extract_slab()
-	variable nx = 11
-	variable ny = 16
-	variable nz = 21
-
-	make /n=(nx,ny,nz) /d /free source
-	setscale /i x -1, 1, "X", source
-	setscale /i y -2, 2, "Y", source
-	setscale /i z -3, 3, "Z", source
-	setscale d 0, 0, "D", source
-	source = x + y + z
-	
-	variable x1, x2
-	variable y1, y2
-	variable z1, z2
-
-	make /n=(ny,nz) /d /free expected
-	setscale /i x -2, 2, "Y", expected
-	setscale /i y -3, 3, "Z", expected
-	setscale d 0, 0, "D", expected
-	
-	x1 = 0
-	x2 = 0
-	y1 = nan
-	y2 = nan
-	z1 = nan
-	z2 = nan
-	expected = source[(nx-1)/2][p][q]
-	wave result = ad_extract_slab(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	x1 = -inf
-	x2 = inf
-	expected = (x + y) * nx
-	wave result = ad_extract_slab(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	make /n=(nx,nz) /d /free expected
-	setscale /i x -1, 1, "X", expected
-	setscale /i y -3, 3, "Z", expected
-	setscale d 0, 0, "D", expected
-	
-	x1 = nan
-	x2 = nan
-	y1 = 0
-	y2 = 0
-	z1 = nan
-	z2 = nan
-	expected = source[p][(ny-1)/2][q]
-	wave result = ad_extract_slab(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	y1 = -inf
-	y2 = +inf
-	expected = (x + y) * ny
-	wave result = ad_extract_slab(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	make /n=(nx,ny) /d /free expected
-	setscale /i x -1, 1, "X", expected
-	setscale /i y -2, 2, "Y", expected
-	setscale d 0, 0, "D", expected
-
-	x1 = nan
-	x2 = nan
-	y1 = nan
-	y2 = nan
-	z1 = 0
-	z2 = 0
-	expected = source[p][q][(nz-1)/2]
-	wave result = ad_extract_slab(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	z1 = -inf
-	z2 = inf
-	expected = (x + y) * nz
-	wave result = ad_extract_slab(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-end
-
-/// test the ad_extract_rod_x() function
-static function test_ad_extract_rod_x()
-	variable nx = 11
-	variable ny = 16
-	variable nz = 21
-	make /n=(nx,ny,nz) /d /free source
-	setscale /i x -1, 1, "X", source
-	setscale /i y -2, 2, "Y", source
-	setscale /i z -3, 3, "Z", source
-	setscale d 0, 0, "D", source
-	source = x + y + z
-	source[][4][4] = 1
-	source[][4][5] = 1
-	source[][5][4] = 1
-	source[][5][5] = 1
-	
-	make /n=(nx) /d /free expected
-	setscale /i x -1, 1, "X", expected
-	setscale d 0, 0, "D", expected
-	expected = 4
-	
-	variable q1, q2
-	variable r1, r2
-	q1 = 4
-	q2 = 5
-	r1 = 4
-	r2 = 5
-	
-	wave result = ad_extract_rod_x(source, q1, q2, r1, r2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	expected = 1
-	wave result = ad_extract_rod_x(source, q1, q2, r1, r2, "", noavg=0)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-end
-
-/// test the ad_extract_rod() function, X coordinate
-static function test_ad_extract_rod__x()
-	variable nx = 11
-	variable ny = 16
-	variable nz = 21
-
-	make /n=(nx,ny,nz) /d /free source
-	setscale /i x -1, 1, "X", source
-	setscale /i y -2, 2, "Y", source
-	setscale /i z -3, 3, "Z", source
-	setscale d 0, 0, "D", source
-	source = x + y + z
-	
-	variable x1, x2
-	variable y1, y2
-	variable z1, z2
-
-	make /n=(nx) /d /free expected
-	setscale /i x -1, 1, "X", expected
-	setscale d 0, 0, "D", expected
-
-	x1 = nan
-	x2 = nan
-	y1 = 0
-	y2 = 0
-	z1 = 0
-	z2 = 0
-	expected = source[p][(ny-1)/2][(nz-1)/2]
-	wave result = ad_extract_rod(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	y1 = -inf
-	y2 = +inf
-	z1 = -inf
-	z2 = +inf
-	expected = x * ny * nz
-	wave result = ad_extract_rod(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-end
-
-/// test the ad_extract_rod() function, Y coordinate
-static function test_ad_extract_rod__y()
-	variable nx = 11
-	variable ny = 16
-	variable nz = 21
-
-	make /n=(nx,ny,nz) /d /free source
-	setscale /i x -1, 1, "X", source
-	setscale /i y -2, 2, "Y", source
-	setscale /i z -3, 3, "Z", source
-	setscale d 0, 0, "D", source
-	source = x + y + z
-	
-	variable x1, x2
-	variable y1, y2
-	variable z1, z2
-
-	make /n=(ny) /d /free expected
-	setscale /i x -2, 2, "Y", expected
-	setscale d 0, 0, "D", expected
-
-	x1 = 0
-	x2 = 0
-	y1 = nan
-	y2 = nan
-	z1 = 0
-	z2 = 0
-	expected = source[(nx-1)/2][p][(nz-1)/2]
-	wave result = ad_extract_rod(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	x1 = -inf
-	x2 = +inf
-	z1 = -inf
-	z2 = +inf
-	expected = x * nx * nz
-	wave result = ad_extract_rod(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-end
-
-/// test the ad_extract_rod() function, Z coordinate
-static function test_ad_extract_rod__z()
-	variable nx = 11
-	variable ny = 16
-	variable nz = 21
-
-	make /n=(nx,ny,nz) /d /free source
-	setscale /i x -1, 1, "X", source
-	setscale /i y -2, 2, "Y", source
-	setscale /i z -3, 3, "Z", source
-	setscale d 0, 0, "D", source
-	source = x + y + z
-	
-	variable x1, x2
-	variable y1, y2
-	variable z1, z2
-
-	make /n=(nz) /d /free expected
-	setscale /i x -3, 3, "Z", expected
-	setscale d 0, 0, "D", expected
-
-	x1 = 0
-	x2 = 0
-	y1 = 0
-	y2 = 0
-	z1 = nan
-	z2 = nan
-	expected = source[(nx-1)/2][(ny-1)/2][p]
-	wave result = ad_extract_rod(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-
-	x1 = -inf
-	x2 = +inf
-	y1 = -inf
-	y2 = +inf
-	expected = x * nx * ny
-	wave result = ad_extract_rod(source, x1, x2, y1, y2, z1, z2, "", noavg=1)
-	CHECK_EQUAL_WAVES(result, expected, tol=0.001)
-end
--- a/pearl/pearl-area-profiles.ipf
+++ b/pearl/pearl-area-profiles.ipf
@ -613,3 +613,36 @@ threadsafe function calc_y_profile_mins(image)
 		yminlocs[ix] = v_minloc
 	endfor
 end
+
+/// collect profiles from a multi-scan.
+///
+/// @warning experimental: name and interface of this function may change.
+///
+function ad_collect_multiscan_y(dataset, positions, destwave, [noavg])
+	wave dataset
+	wave positions
+	wave destwave
+	variable noavg
+	
+	variable tol = (wavemax(positions) - wavemin(positions)) / numpnts(positions) / 100
+	
+	duplicate /free positions, positions_sorted
+	sort positions_sorted, positions_sorted
+	duplicate /free positions_sorted, positions_diff
+	differentiate /p /meth=2 positions_sorted /d=positions_diff
+	positions_diff[0] = 1
+	extract /free positions_sorted, positions_unique, positions_diff > tol
+	variable n_unique = numpnts(positions_unique)
+	redimension /n=(dimsize(dataset, 0), n_unique) destwave
+	
+	variable i
+	variable nx, ny
+	for (i = 0; i < n_unique; i += 1)
+		extract /free dataset, data_extract, abs(positions[q] - positions_unique[i]) < tol
+		nx = dimsize(dataset, 0)
+		ny = dimsize(data_extract, 0) / nx
+		redimension /n=(nx, ny) data_extract
+		wave profile = ad_profile_x(data_extract, -inf, inf, "", noavg=noavg)
+		destwave[][i] = profile[p]
+	endfor
+end
--- a/pearl/pearl-arpes-scans.ipf
+++ b/pearl/pearl-arpes-scans.ipf
@ -1,152 +0,0 @@
-#pragma rtGlobals=3		// Use modern global access method and strict wave access.
-#pragma IgorVersion = 6.1
-#pragma ModuleName = PearlArpesScans
-#pragma version = 1.01
-#include "mm-physconst"
-#include "pearl-optics-theory"
-#include "pearl-epics", version >= 1.01
-
-// EPICS scans of Scienta
-// matthias muntwiler, 2013-03-15
-// $Id: pearl-optics-scans.ipf 129 2013-06-26 15:53:13Z muntwiler_m $
-
-static strconstant basename = "X03DA-SCIENTA:"
-static strconstant camname = "cam1:"
-static strconstant hdfname = "HDF1:"
-static strconstant imgname = "image1:"
-static strconstant statsname = "Stats1:"
-
-function scienta_connect()
-	
-	dfref savedf = GetDataFolderDFR()
-	print "connecting EPICS channels..."
-	
-	// channel lists
-	string controls = ""
-	controls += basename + camname + "PASS_ENERGY;"
-	controls += basename + camname + "LOW_ENERGY;"
-	controls += basename + camname + "CENTRE_ENERGY;"
-	controls += basename + camname + "HIGH_ENERGY;"
-	controls += basename + camname + "LENS_MODE;"
-	controls += basename + camname + "ACQ_MODE;"
-	controls += basename + camname + "ENERGY_MODE;"
-	controls += basename + camname + "DETECTOR_MODE;"
-	controls += basename + camname + "ELEMENT_SET;"
-	controls += basename + camname + "STEP_SIZE;"
-	controls += basename + camname + "SLICES;"
-	controls += basename + camname + "NumExposures;"
-	controls += basename + camname + "FRAMES;"
-	controls += basename + camname + "STEP_TIME;"
-	
-	string monitors = ""
-	monitors += basename + camname + "PASS_ENERGY_RBV;"
-	monitors += basename + camname + "LOW_ENERGY_RBV;"
-	monitors += basename + camname + "CENTRE_ENERGY_RBV;"
-	monitors += basename + camname + "HIGH_ENERGY_RBV;"
-	monitors += basename + camname + "ENERGY_WIDTH_RBV;"
-	monitors += basename + camname + "LENS_MODE_RBV;"
-	monitors += basename + camname + "ACQ_MODE_RBV;"
-	monitors += basename + camname + "ENERGY_MODE_RBV;"
-	monitors += basename + camname + "DETECTOR_MODE_RBV;"
-	monitors += basename + camname + "ELEMENT_SET_RBV;"
-	monitors += basename + camname + "STEP_SIZE_RBV;"
-	monitors += basename + camname + "SLICES_RBV;"
-	monitors += basename + camname + "NumExposures_RBV;"
-	monitors += basename + camname + "CURRENT_CHANNEL_RBV;"
-	monitors += basename + camname + "TOTAL_POINTS_RBV;"
-	monitors += basename + camname + "PROGRESS_RBV;"
-	//monitors += basename + camname + "INT_SPECTRUM;"
-	monitors += basename + camname + "BinX_RBV;"
-	monitors += basename + camname + "BinY_RBV;"
-	monitors += basename + camname + "MinX_RBV;"
-	monitors += basename + camname + "MinY_RBV;"
-	monitors += basename + camname + "SizeX_RBV;"
-	monitors += basename + camname + "SizeY_RBV;"
-	monitors += basename + camname + "ReverseX_RBV;"
-	monitors += basename + camname + "ReverseY_RBV;"
-	
-	// variable name list corresponding to channel lists
-	string variables = ""
-	variables = AddListItem("ArrayData", variables, ";", ItemsInList(variables))
-	
-	// connect EPICS channels
-	epics_connect(controls, monitors)
-	
-	
-	print "...done"
-	setdatafolder savedf
-
-end
-
-function pearl_set_attr_ch(attr_wave_name, attr_channel_name)
-	string attr_wave_name
-	string attr_channel_name
-	
-	variable result
-	variable chid
-	pvOpen chid, attr_channel_name
-
-	switch(wavetype($attr_wave_name, 1))
-		case 1: // numeric
-			wave w_attr = $attr_wave_name
-			pvPutNumber /Q chid, w_attr[0]
-			result = 0
-			break
-		case 2: // text
-			wave /t wt_attr = $attr_wave_name
-			pvPutString /Q chid, wt_attr[0]
-			result = 0
-			break
-		default: // error
-			result = -1
-	endswitch
-
-	pvClose chid
-	
-	return result
-end
-
-function pearl_set_sscan(scan_rec_num)
-	variable scan_rec_num
-	
-	string chan_base = "X03DA-PC:scan" + num2str(scan_rec_num) + ":"
-	string wave_base = "Scan" + num2str(scan_rec_num)
-	
-	variable nfields
-	variable ifield
-	string wave_name
-	string chan_name
-	wave /z w_active = $(wave_base + "Active")
-	if (WaveExists(w_active))
-		if (w_active[0] != 0)
-			nfields = 4
-			for (ifield = 1; ifield <= nfields; ifield += 1)
-				sscanf wave_name, "%sPositioner%u", ifield
-				sscanf chan_name, "%sP%uPV", chan_base, ifield
-				pearl_set_attr_ch(wave_name, chan_name)
-				sscanf wave_name, "%sReadback%u", ifield
-				sscanf chan_name, "%sR%uPV", chan_base, ifield
-				pearl_set_attr_ch(wave_name, chan_name)
-				sscanf wave_name, "%sTrigger%u", ifield
-				sscanf chan_name, "%sT%uPV", chan_base, ifield
-				pearl_set_attr_ch(wave_name, chan_name)
-			endfor
-			nfields = 20
-			for (ifield = 1; ifield <= nfields; ifield += 1)
-				sscanf wave_name, "%sDetector%u", ifield
-				sscanf chan_name, "%sD%uPV", chan_base, ifield
-				pearl_set_attr_ch(wave_name, chan_name)
-			endfor
-		endif
-	endif
-end
-
-function pearl_repeat_scan()
-	// set up a scan according to the attributes of the given dataset
-	dfref savedf = GetDataFolderDFR()
-	
-	setdatafolder :attr
-
-	
-	setdatafolder savedf
-end
--- a/pearl/pearl-arpes.ipf
+++ b/pearl/pearl-arpes.ipf
@ -5,6 +5,7 @@
 #include "pearl-area-display" // 2D and 3D data visualization
 #include "pearl-area-profiles" // data processing for multi-dimensional datasets
 #include "pearl-area-import" // import data files generated by area detector software
+#include "pearl-pshell-import"
 #include "pearl-data-explorer" // preview and import panel for PEARL data
 #include "pearl-anglescan-process"
 #include "pearl-anglescan-tracker" // live preview of hemispherical angle scan
--- a/pearl/pearl-data-explorer.ipf
+++ b/pearl/pearl-data-explorer.ipf
@ -1,36 +1,58 @@
 #pragma rtGlobals=3		// Use modern global access method and strict wave access.
 #pragma IgorVersion = 6.1
 #pragma ModuleName = PearlDataExplorer
-#pragma version = 1.41
-#include "pearl-area-import", version >= 1.06
-#include "pearl-area-profiles", version >= 1.04
-#include "pearl-area-display", version >= 1.04
-
-// preview and import panel for PEARL data:
-// scienta analyser, prosilica cameras, s-scans, otf-scans
-
-// $Id$
-// author: matthias.muntwiler@psi.ch
-// Copyright (c) 2013-14 Paul Scherrer Institut
+#pragma version = 1.50
+#include "pearl-area-import"
+#include "pearl-area-profiles"
+#include "pearl-area-display"
+#include "pearl-pshell-import"
+#if exists("MFR_OpenResultFile")
+#include "pearl-matrix-import"
+#endif

+// copyright (c) 2013-16 Paul Scherrer Institut
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 //   you may not use this file except in compliance with the License.
 //   You may obtain a copy of the License at
-//   http://www.apache.org/licenses/LICENSE-2.0
+//   http:///www.apache.org/licenses/LICENSE-2.0
+
+/// @file
+/// @brief preview and import panel for PEARL data
+/// @ingroup ArpesPackage
+///
+///
+/// preview and import panel for PEARL data:
+/// @arg area detector (HDF5) files from scienta analyser and prosilica cameras (if HDF5.xop is installed).
+/// @arg igor text files from s-scans and otf-scans.
+/// @arg pshell (HDF5) data files (if HDF5.xop is installed).
+/// @arg matrix STM files (if MatrixFileReader.xop is installed).
+
+/// @namespace PearlDataExplorer
+/// @brief preview and import panel for PEARL data
+///
+/// PearlDataExplorer is declared in @ref pearl-data-explorer.ipf.

 static strconstant package_name = "pearl_explorer"
 static strconstant package_path = "root:packages:pearl_explorer:"

+static strconstant ks_filematch_adh5 = "*.h5"
+static strconstant ks_filematch_pshell = "psh*.h5"
+static strconstant ks_filematch_itx = "*.itx"
+static strconstant ks_filematch_mtrx = "*_mtrx"
+
 function pearl_data_explorer()
 	init_package()
 	load_prefs()
 	execute /q/z "PearlDataExplorer()"
 end

+/// initialize the global variables of the data explorer.
+///
+/// initializes the global variables and data folder for this procedure file
+/// must be called once before the panel is created
+/// warning: this function overwrites previous values
 static function init_package()
-	// initializes the global variables and data folder for this procedure file
-	// must be called once before the panel is created
-	// warning: this function overwrites previous values

 	dfref savefolder = GetDataFolderDFR()
 	SetDataFolder root:
@ -64,7 +86,8 @@ static function init_package()
 	string /g s_preview_source = "" // data source, e.g. EPICS channel name, of the current preview
 	string /g s_profiles_graph = "" // window name of the current preview if the data is two-dimensional
 	string /g s_preview_trace_graph = "" // window name of the current preview if the data is one-dimensional
-
+	string /g s_file_info = "" // description of selected file
+	
 	variable/g v_InitPanelDone = 1
 	
 	SetDataFolder savefolder
@ -124,31 +147,64 @@ static function load_prefs()
 	return result
 end

+/// check whether a file can be imported by this module.
+///
+/// the file type is determined by the extension of the file name.
+///
+/// @return file type
+///	@arg 0	not a recognized file type
+///	@arg 1	PShell file (HDF5, name starts with psh_)
+///	@arg 2	area detector HDF5 file
+///	@arg 3	Igor text (itx) file
+///	@arg 4	Matrix STM file (*_mtrx)
+///
+static function pearl_file_type(filename)
+	string filename
+	
+	if (StringMatch(filename, ks_filematch_pshell))
+		return 1
+	elseif (StringMatch(filename, ks_filematch_adh5))
+		return 2
+	elseif (StringMatch(filename, ks_filematch_itx))
+		return 3
+#if exists("MFR_OpenResultFile")
+	elseif (StringMatch(filename, ks_filematch_mtrx))
+		return 4
+#endif
+	else
+		return 0
+	endif
+end
+
+/// read a list of PEARL files from the file system
+///
+/// wtFiles and wSelectedFiles in the package data folder are updated.
+/// only files for which pearl_file_type() returns non-zero are listed.
+///
 static function update_filelist()
 	dfref saveDF = GetDataFolderDFR()

-	string hdf_files, itx_files, all_files
+	string all_files
 	wave /t wtFiles = $(package_path + "wtFiles")
 	wave wSelectedFiles = $(package_path + "wSelectedFiles")
 	variable nn
 	
 	PathInfo pearl_explorer_filepath
 	if (v_flag == 1)
-		hdf_files = IndexedFile(pearl_explorer_filepath, -1, ".h5")
-		itx_files = IndexedFile(pearl_explorer_filepath, -1, ".itx")
-		all_files = hdf_files + itx_files
-		all_files = SortList(hdf_files + itx_files, ";", 4)
+		all_files = IndexedFile(pearl_explorer_filepath, -1, "????")
 		nn = ItemsInList(all_files)
 	else
 		all_files = ""
 		nn = 0
 	endif
 	
-	redimension /n=(nn) wtFiles, wSelectedFiles
-	if (nn > 0)
-		wtFiles = StringFromList(p, all_files)
-		wSelectedFiles = 0
-	endif
+	make /n=(nn) /t /free wtAllFiles
+	wtAllFiles = StringFromList(p, all_files)
+	Extract /o /t wtAllFiles, wtFiles, pearl_file_type(wtAllFiles[p])
+	Sort /A /R wtFiles, wtFiles
+	
+	redimension /n=(numpnts(wtFiles)) wSelectedFiles
+	wSelectedFiles = 0
 	
 	setdatafolder saveDF
 end
@ -200,12 +256,24 @@ static function preview_file(filename)
 	string filename
 	
 	dfref saveDF = GetDataFolderDFR()
-
-	if (StringMatch(filename, "*.h5"))
-		wave /z image = preview_hdf_file(filename)
-	elseif (StringMatch(filename, "*.itx"))
-		wave /z image = preview_itx_file(filename)
-	endif
+	
+	variable ft = pearl_file_type(filename)
+	switch(ft)
+		case 1:
+			wave /z image = preview_pshell_file(filename)
+			break
+		case 2:
+			wave /z image = preview_hdf_file(filename)
+			break
+		case 3:
+			wave /z image = preview_itx_file(filename)
+			break
+		case 4:
+			wave /z image = preview_mtrx_file(filename)
+			break
+		default:
+			wave /z image = $""
+	endswitch
 	
 	if (WaveExists(image))
 		string graphname = show_preview_graph(image)
@ -222,6 +290,50 @@ static function preview_file(filename)
 	endif
 	
 	setdatafolder saveDF
+	return 0
+end
+
+/// load the preview of a PShell HDF5 file.
+///
+/// the preview is an arbitrary detector image extracted from the file, see adh5_load_preview().
+/// the preview is loaded to the preview_image wave in the pear_explorer data folder.
+///
+/// the s_file_info string is updated with information about the scan dimensions.
+///
+/// @param	filename		name of a file in the directory specified by the pearl_explorer_filepath path object.
+///
+/// @return	wave reference of the preview image
+///
+static function /wave preview_pshell_file(filename)
+	string filename
+
+	dfref saveDF = GetDataFolderDFR()
+	setdatafolder $package_path
+	svar s_preview_file
+	svar s_preview_source
+	psh5_load_preview("preview_image", "pearl_explorer_filepath", filename)
+	s_preview_file = filename
+	s_preview_source = ""
+	wave /z preview_image
+	
+	svar /z s_file_info
+	if (! svar_exists(s_file_info))
+		string /g s_file_info
+	endif
+	if (strlen(s_preview_file) > 0)
+		s_file_info = psh5_load_info("pearl_explorer_filepath", filename)
+	else
+		s_file_info = ""
+	endif
+	
+	if (DataFolderExists("attr"))
+		setdatafolder attr
+		preview_attributes(GetDataFolderDFR())
+		setdatafolder ::
+	endif
+	
+	setdatafolder saveDF
+	return preview_image
 end

 /// load the preview of a PEARL HDF5 file.
@ -293,6 +405,63 @@ static function /wave preview_itx_file(filename)
 	return preview_image
 end

+/// load the preview of a Matrix STM file.
+///
+/// the preview is loaded to the preview_image wave in the pearl_explorer data folder.
+///
+/// the s_file_info string is updated with information about the scan dimensions.
+///
+/// this function requires the MatrixFileReader.xop and pearl-matrix-import.ipf to be loaded.
+/// otherwise it will return an empty wave reference.
+///
+/// @param	filename		name of a file in the directory specified by the pearl_explorer_filepath path object.
+///
+/// @return	wave reference of the preview image.
+///			empty wave reference if the function failed.
+///
+static function /wave preview_mtrx_file(filename)
+	string filename
+
+#if exists("MFR_OpenResultFile")
+	dfref saveDF = GetDataFolderDFR()
+	setdatafolder $package_path
+	variable /g V_MatrixFileReaderOverwrite = 1
+	variable /g V_MatrixFileReaderFolder = 0
+	variable /g V_MatrixFileReaderDouble = 0
+	svar s_preview_file
+	svar s_preview_source
+	string datanames
+	string dataname
+	datanames = mtrx_load_preview("preview", "pearl_explorer_filepath", filename)
+	if (strlen(datanames) > 0)
+		s_preview_file = filename
+
+		dataname = StringFromList(0, datanames)
+		wave data = $dataname
+		duplicate /o $dataname, preview_image
+		s_preview_source = StringByKey("Dataset", note(data), "=", "\r")
+		
+		svar /z s_file_info
+		if (svar_exists(s_file_info))
+			s_file_info = ""
+		endif
+		
+		variable i
+		variable n = ItemsInList(datanames)
+		string s
+		for (i = 0; i < n; i += 1)
+			s = StringFromList(i, datanames)
+			killwaves /z $s
+		endfor
+	endif
+	wave /z preview_image
+	setdatafolder saveDF
+#else
+	wave /z preview_image = $""
+#endif
+	return preview_image
+end
+
 static function extract_preview_image(data, preview)
 	// extracts a preview image from a wave of arbitrary dimension
 	wave data
@ -698,18 +867,21 @@ static function /s show_preview_graph(data, [xdata])
 	svar s_profiles_graph
 	svar s_preview_file
 	svar s_preview_source
+	svar s_preview_trace_graph
 	
+	if ((strlen(s_profiles_graph) > 0) && (WinType(s_profiles_graph) == 1))
+		KillWindow $s_profiles_graph
+	endif
+	if ((strlen(s_preview_trace_graph) > 0) && (WinType(s_preview_trace_graph) == 1))
+		KillWindow $s_preview_trace_graph
+	endif
+
 	string graphname
 	if (wavedims(data) == 2)
-		if ((strlen(s_profiles_graph) > 0) && (WinType(s_profiles_graph) == 1))
-			ad_update_profiles(data)
-		else
-			s_profiles_graph = ad_display_profiles(data)
-			ModifyGraph /w=$s_profiles_graph /z wbRGB=(48640,56832,60160)
-		endif
+		s_profiles_graph = ad_display_profiles(data)
+		ModifyGraph /w=$s_profiles_graph /z wbRGB=(48640,56832,60160)
 		graphname = s_profiles_graph
 	elseif (wavedims(data) == 1)
-		svar s_preview_trace_graph
 		duplicate /o data, preview_trace
 		if (!ParamIsDefault(xdata))
 			duplicate /o xdata, preview_trace_x
@ -718,20 +890,8 @@ static function /s show_preview_graph(data, [xdata])
 			preview_trace_x = x
 			setscale d 0, 0, WaveUnits(data, 0), preview_trace_x
 		endif
-		if ((strlen(s_preview_trace_graph) == 0) || (WinType(s_preview_trace_graph) != 1))
-			display /n=pearl_explorer_1d /k=1 preview_trace vs preview_trace_x as "Preview"
-			s_preview_trace_graph = s_name
-			ModifyGraph /w=$s_preview_trace_graph wbRGB=(48640,56832,60160)
-			ModifyGraph /w=$s_preview_trace_graph rgb[0]=(0,0,0)
-			ModifyGraph /w=$s_preview_trace_graph grid=2
-			ModifyGraph /w=$s_preview_trace_graph mirror=1
-			ModifyGraph /w=$s_preview_trace_graph minor=1
-			ModifyGraph /w=$s_preview_trace_graph axThick=0.5
-			ModifyGraph /w=$s_preview_trace_graph gridRGB=(52224,52224,52224)
-			ModifyGraph /w=$s_preview_trace_graph gridHair=0
-			ModifyGraph /w=$s_preview_trace_graph tick=0
-			ModifyGraph /w=$s_preview_trace_graph btLen=4
-		endif
+		s_preview_trace_graph = display_preview_trace(preview_trace_x, preview_trace)
+		ModifyGraph /w=$s_preview_trace_graph wbRGB=(48640,56832,60160)
 		graphname = s_preview_trace_graph
 	else
 		return ""
@ -747,6 +907,39 @@ static function /s show_preview_graph(data, [xdata])
 	return graphname
 end

+static function /s display_preview_trace(xtrace, ytrace)
+	wave xtrace
+	wave ytrace
+	
+	display /n=pearl_explorer_1d /k=1 ytrace vs xtrace as "Preview"
+	string graphname = s_name
+	ModifyGraph /w=$graphname rgb[0]=(0,0,0)
+	ModifyGraph /w=$graphname grid=2
+	ModifyGraph /w=$graphname mirror=1
+	ModifyGraph /w=$graphname minor=1
+	ModifyGraph /w=$graphname axThick=0.5
+	ModifyGraph /w=$graphname gridRGB=(52224,52224,52224)
+	ModifyGraph /w=$graphname gridHair=0
+	ModifyGraph /w=$graphname tick=0
+	ModifyGraph /w=$graphname btLen=4
+	
+	// axis labels	
+	string labels = note(ytrace)
+	string lab
+	lab = StringByKey("AxisLabelX", labels, "=", "\r")
+	if (!strlen(lab))
+		lab = "X"
+	endif
+	Label /w=$graphname bottom lab + " (\\U)"
+	lab = StringByKey("AxisLabelD", labels, "=", "\r")
+	if (!strlen(lab))
+		lab = "value"
+	endif
+	Label /w=$graphname left lab + " (\\U)"
+	
+	return s_name
+end
+
 static function load_selected_files([options])
 	string options
 	
@ -777,16 +970,32 @@ static function load_file(filename, [options])
 	
 	dfref saveDF = GetDataFolderDFR()

-	if (StringMatch(filename, "*.h5"))
-		if (ParamIsDefault(options))
-			load_hdf_file(filename)
-		else
-			load_hdf_file(filename, options=options)
-		endif
-	elseif (StringMatch(filename, "*.itx"))
-		load_itx_file(filename)
-	endif
-	
+	variable ft = pearl_file_type(filename)
+	switch(ft)
+		case 1:
+			if (ParamIsDefault(options))
+				load_pshell_file(filename)
+			else
+				load_pshell_file(filename, options=options)
+			endif
+			break
+		case 2:
+			if (ParamIsDefault(options))
+				load_hdf_file(filename)
+			else
+				load_hdf_file(filename, options=options)
+			endif
+			break
+		case 3:
+			load_itx_file(filename)
+			break
+		case 4:
+			load_mtrx_file(filename)
+			break
+		default:
+			break
+	endswitch
+
 	setdatafolder saveDF
 end

@ -796,7 +1005,7 @@ static function prompt_hdf_options(options)
 	string mode = StringByKey("mode", options, ":", ";")
 	string reduction_func = StringByKey("reduction_func", options, ":", ";")
 	
-	string modes = "adh5_load_reduced"
+	string modes = "load_reduced"
 	string reduction_functions = adh5_list_reduction_funcs()
 	
 	if (strlen(mode) == 0)
@ -817,17 +1026,19 @@ static function prompt_hdf_options(options)
 	return v_flag // 0 = OK, 1 = cancel
 end

+/// prototype for prompting for processing function parameters.
+///
+/// the function should prompt the user for function parameters,
+/// and update the param argument if the user clicked OK.
+/// returns 0 if the user clicked OK, 1 if the user cancelled.
+///	
+/// prompt functions must have the same name as the corresponding reduction function
+/// with the prefix "prompt_".
+/// be aware of the limited length of function names in Igor.
+///
+/// this function is a prototype. it does nothing but returns OK.
+///
 function prompt_default_process(param)
-	// prototype for prompting for processing function parameters.
-	// the function should prompt the user for function parameters,
-	// and update the param argument if the user clicked OK.
-	// returns 0 if the user clicked OK, 1 if the user cancelled.
-	
-	// prompt functions must have the same name as the corresponding reduction function
-	// with the prefix "prompt_".
-	// be aware of the limited length of function names in Igor.
-	
-	// this function is a prototype. it does nothing but returns OK.
 	string &param
 	
 	return 0
@ -847,6 +1058,58 @@ function prompt_func_params(func_name, func_param)
 	endif
 end

+static function /df load_pshell_file(filename, [options])
+	string filename
+	string options
+
+	dfref saveDF = GetDataFolderDFR()
+	string nickname = ad_suggest_foldername(filename)
+	string loaded_filename = ""
+	
+	if (ParamIsDefault(options))
+		loaded_filename = psh5_load_complete(nickname, "pearl_explorer_filepath", filename)
+	else
+		if (strlen(options) == 0)
+			svar pref_options = $(package_path + "s_hdf_options")
+			options = pref_options
+			if (prompt_hdf_options(options) == 0)
+				// OK
+				pref_options = options
+			else
+				// cancel
+				options = ""
+			endif
+		endif
+		
+		string mode = StringByKey("mode", options, ":", ";")
+		
+		strswitch(mode)
+			case "load_reduced":
+				string reduction_func = StringByKey("reduction_func", options, ":", ";")
+				svar pref_params = $(package_path + "s_reduction_params")
+				string reduction_params = pref_params
+				if (prompt_func_params(reduction_func, reduction_params) == 0)
+					pref_params = reduction_params
+					print reduction_func, reduction_params
+					psh5_load_reduced(nickname, "pearl_explorer_filepath", filename, $reduction_func, reduction_params)
+					svar s_filepath
+					loaded_filename = s_filepath
+				endif
+				break
+		endswitch
+	endif
+
+	dfref dataDF	
+	if (strlen(loaded_filename) > 0)
+		setdatafolder $("root:" + nickname)
+		dataDF = GetDataFolderDFR()
+		string /g pearl_explorer_import = "load_pshell_file"
+	endif
+	
+	setdatafolder saveDF
+	return dataDF
+end
+
 static function /df load_hdf_file(filename, [options])
 	string filename
 	string options
@ -873,12 +1136,13 @@ static function /df load_hdf_file(filename, [options])
 		string mode = StringByKey("mode", options, ":", ";")
 		
 		strswitch(mode)
-			case "adh5_load_reduced":
+			case "load_reduced":
 				string reduction_func = StringByKey("reduction_func", options, ":", ";")
 				svar pref_params = $(package_path + "s_reduction_params")
 				string reduction_params = pref_params
 				if (prompt_func_params(reduction_func, reduction_params) == 0)
 					pref_params = reduction_params
+					print reduction_func, reduction_params
 					loaded_filename = adh5_load_reduced(nickname, "pearl_explorer_filepath", filename, $reduction_func, reduction_params)
 				endif
 				break
@ -936,6 +1200,32 @@ static function /df load_itx_file(filename, [options])
 	return actDF
 end

+/// load a matrix (STM) data file
+///
+///
+static function /df load_mtrx_file(filename, [options])
+	string filename
+	string options
+
+	dfref saveDF = GetDataFolderDFR()
+	dfref dataDF = $""
+
+#if exists("MFR_OpenResultFile")
+	setdatafolder root:
+	string datasets = ""
+	datasets = mtrx_load_file("pearl_explorer_filepath", filename)
+	if (strlen(datasets) > 0)
+		string /g pearl_explorer_import = "load_mtrx_file"
+		string s1 = StringFromList(0, datasets)
+		wave w1 = $s1
+		dataDF = GetWavesDataFolderDFR(w1)
+	endif
+#endif
+	
+	setdatafolder saveDF
+	return dataDF
+end
+
 function /s itx_suggest_foldername(filename, [ignoredate,sourcename,unique])
 	// suggests the name of a data folder based on a file name
 	// if the file name follows the naming convention source-date-index.extension,
@ -1306,6 +1596,9 @@ static function bp_dataset_folder(ba) : ButtonControl
 				string cmd
 				sprintf cmd, "setdatafolder root:%s", PossiblyQuoteName(dataset)
 				execute /q /z cmd
+				cmd = "setdatafolder :scan1"
+				execute /q /z cmd
+				sprintf cmd, "setdatafolder %s", GetDataFolder(1)
 				print cmd
 			endif
 			break
--- a/pearl/pearl-data-export.ipf
+++ b/pearl/pearl-data-export.ipf
@ -1,28 +0,0 @@
-#pragma rtGlobals=3		// Use modern global access method and strict wave access.
-
-function export_otf()
-	// export OTF folders to text files
-	
-	string objname
-	variable index= 0
-
-	setdatafolder root:
-	dfref parentfolder = getdatafolderdfr()
-	string filename
-	
-	do
-		objname = GetindexedObjNameDFR(parentfolder, 4, index)
-		if (strlen(objname) > 0)
-			if (cmpstr(StringFromList(0, objname,  "_"), "otf") == 0)
-				setdatafolder parentfolder
-				setdatafolder $objname
-				wave ringcurrent,photonenergy,current_ch1,current_ch2
-				filename = objname + ".txt"
-				Save/G/M="\r\n"/W/P=pearl_explorer_filepath photonenergy,current_ch1,current_ch2,ringcurrent as filename
-			endif
-			index += 1
-		else
-			break
-		endif
-	while(1)
-end
--- a/pearl/pearl-elog.ipf
+++ b/pearl/pearl-elog.ipf
--- a/pearl/pearl-fitfuncs.ipf
+++ b/pearl/pearl-fitfuncs.ipf
@ -454,7 +454,7 @@ function Au4f(w, x): fitfunc
 		vc1 = w[ip] / sqrt(pi) * vc2
 		vc3 = w[ip+1]
 		vc4 = vc2 * w[ip+2] / 2
-		v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+		v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)
 	endfor

 	return v
@ -491,25 +491,25 @@ function Au4f_2p2(w, x): fitfunc
 	vc1 = w[3] / sqrt(pi) * vc2
 	vc3 = w[4]
 	vc4 = vc2 * w[5] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	// 5/2 surface
 	vc1 = w[3] / sqrt(pi) * vc2 * w[9]
 	vc3 = w[4] + w[10]
 	vc4 = vc2 * w[5] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	// 7/2 bulk
 	vc1 = w[6] / sqrt(pi) * vc2
 	vc3 = w[7]
 	vc4 = vc2 * w[8] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	// 7/2 surface
 	vc1 = w[6] / sqrt(pi) * vc2 * w[9]
 	vc3 = w[7] + w[10]
 	vc4 = vc2 * w[8] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	return v
 	
@ -578,37 +578,37 @@ function Au4f_2p3(w, x): fitfunc
 	vc1 = w[3] / sqrt(pi) * vc2
 	vc3 = w[4]
 	vc4 = vc2 * w[5] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	// 5/2 surface
 	vc1 = w[3] / sqrt(pi) * vc2 * w[9]
 	vc3 = w[4] + w[10]
 	vc4 = vc2 * w[5] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	// 5/2 2nd layer
 	vc1 = w[3] / sqrt(pi) * vc2 * w[11]
 	vc3 = w[4] + w[12]
 	vc4 = vc2 * w[5] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	// 7/2 bulk
 	vc1 = w[6] / sqrt(pi) * vc2
 	vc3 = w[7]
 	vc4 = vc2 * w[8] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	// 7/2 surface
 	vc1 = w[6] / sqrt(pi) * vc2 * w[9]
 	vc3 = w[7] + w[10]
 	vc4 = vc2 * w[8] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	// 7/2 2nd layer
 	vc1 = w[6] / sqrt(pi) * vc2 * w[11]
 	vc3 = w[7] + w[12]
 	vc4 = vc2 * w[8] / 2
-	v += vc1 * Voigt(vc2 * (x - vc3), vc4)
+	v += vc1 * VoigtFunc(vc2 * (x - vc3), vc4)

 	return v
 	
--- a/pearl/pearl-matrix-import.ipf
+++ b/pearl/pearl-matrix-import.ipf
@ -0,0 +1,900 @@
+#pragma rtGlobals=3
+#pragma version = 1.00
+#pragma IgorVersion = 6.36
+#pragma ModuleName = PearlMatrixImport
+
+// author: matthias.muntwiler@psi.ch
+// Copyright (c) 2016 Paul Scherrer Institut
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//   http://www.apache.org/licenses/LICENSE-2.0
+
+/// @file
+/// @brief data file import for omicron matrix (STM) files
+///
+/// the matrix file import requires the matrix file reader XOP by thomas braun
+/// (http://www.igorexchange.com/project/matrixFileReader)
+/// which in turn requires an installation of vernissage by omicron nanotechnology.
+///
+/// @warning EXPERIMENTAL
+/// the matrix import module and its interface may change radically in future revisions!
+///
+/// @author matthias muntwiler, matthias.muntwiler@psi.ch
+///
+/// @copyright 2016 Paul Scherrer Institut @n
+/// Licensed under the Apache License, Version 2.0 (the "License"); @n
+///   you may not use this file except in compliance with the License. @n
+///   You may obtain a copy of the License at
+///   http://www.apache.org/licenses/LICENSE-2.0
+
+/// @namespace PearlMatrixImport
+/// @brief data file import for omicron matrix (STM) files
+///
+/// PearlMatrixImport is declared in @ref pearl-matrix-import.ipf.
+
+static strconstant package_name = "pearl_matrix_import"
+static strconstant package_path = "root:packages:pearl_matrix_import:"
+
+static strconstant ks_filematch_mtrx = "*_mtrx"
+
+/// initialize the package data folder.
+///
+///
+static function init_package()
+	
+	dfref savedf = getdatafolderdfr()
+	
+	setdatafolder root:
+	newdatafolder /o/s packages
+	newdatafolder /o/s $package_name
+	
+	variable /g loglevel = 3
+	string /g dataFilePath = ""
+	string /g resultFilePath = ""
+	variable /g runCycle = 0
+	variable /g scanCycle = 0
+	string /g channelName = ""
+	variable /g brickletID = 0
+	variable /g V_MatrixFileReaderOverwrite = 1
+	variable /g V_MatrixFileReaderFolder = 0
+	variable /g V_MatrixFileReaderDouble = 0
+
+	setdatafolder savedf
+	return 0
+end
+
+/// check that the package data folder exists
+///
+/// initialize the package if the folder does not exist.
+///
+static function check_package_folder()
+	dfref df_pack = $(package_path)
+	if (DataFolderRefStatus(df_pack))
+		svar /sdfr=df_pack /z resultFilePath
+		if (!svar_exists(resultFilePath))
+			init_package()
+		endif
+	else
+		init_package()
+	endif
+end
+
+/// initialize the package and reload preferences after an experiment is loaded.
+static function AfterFileOpenHook(refNum,file,pathName,type,creator,kind)
+	Variable refNum,kind
+	String file,pathName,type,creator
+	if( (kind >= 1) && (kind <= 2))
+		init_package()
+		//load_prefs()
+	endif
+	return 0
+end
+
+/// open a matrix file that was dropped into Igor.
+///
+/// preliminary implementation.
+/// this should rather load the entire file and display a preview.
+/// graph windows should be reused by subsequent loads.
+/// also decide on a data saving location.
+///
+static function BeforeFileOpenHook(refNum,fileName,path,type,creator,kind)
+	Variable refNum,kind
+	String fileName,path,type,creator
+
+	Variable handledOpen = 0
+	if (StringMatch(fileName, ks_filematch_mtrx))
+		setdatafolder root:
+		newdatafolder /o /s matrix
+		mtrx_load_preview("matrix", path, fileName)
+		handledOpen = 1
+	endif
+	return handledOpen
+End
+
+/// generate elog message from bricklet metadata
+///
+/// @param metadata		two-column text wave
+///
+function /s matrix_format_elog_message(metadata)
+	wave /t metadata
+
+	string key
+	string value
+	variable nkeys = dimsize(metadata, 0)
+	variable ikey
+	string message_keys
+	message_keys = "resultFileName;sampleName;channelName;"
+	message_keys += "XYScanner.Points.value;XYScanner.Raster_Time.value;XYScanner.Raster_Time.unit;XYScanner.Width.value;XYScanner.Width.unit;XYScanner.Height.value;XYScanner.Height.unit;"
+	message_keys += "GapVoltageControl.Voltage.value;GapVoltageControl.Voltage.unit;"
+	message_keys += "Regulator.Loop_Gain_1_I.value;Regulator.Loop_Gain_1_I.unit;Regulator.Setpoint_1.value;Regulator.Setpoint_1.unit;"
+	message_keys += "Spectroscopy.Device_1_Start.value;Spectroscopy.Device_1_Start.unit;Spectroscopy.Spectroscopy_Mode.value;"
+	string message
+	
+	message_keys = ""
+	for (ikey = 0; ikey < nkeys; ikey += 1)
+		key = metadata[ikey][0]
+		value = metadata[ikey][1]
+		if (WhichListItem(key, message_keys) >= 0)
+			message += key + " = " + value + "\r"
+		endif
+	endfor
+end
+
+function matrix_preview_2d(data, metadata)
+	wave data
+	wave /t metadata
+	
+	Display
+	AppendImage data
+	ModifyImage data ctab= {*,*,Mud,0}
+	ModifyGraph margin(left)=30,margin(bottom)=30,margin(top)=5,margin(right)=5,height={Plan,1,left,bottom}
+	ModifyGraph mirror=2
+	ModifyGraph nticks=3
+	ModifyGraph axThick=0.5
+	ModifyGraph btLen=4
+
+end
+
+/// load the preview of a Matrix data file
+///
+/// the preview is loaded to the preview_image wave in the pearl_explorer data folder.
+///
+/// the s_file_info string is updated with information about the scan dimensions.
+///
+/// @param	filename		name of a file in the directory specified by the pearl_explorer_filepath path object.
+///
+/// @return	wave reference of the preview image
+///
+static function /wave preview_matrix_file(filename)
+	string filename
+
+	dfref saveDF = GetDataFolderDFR()
+	setdatafolder $package_path
+	svar s_preview_file
+	svar s_preview_source
+	mtrx_load_preview("preview_image", "pearl_explorer_filepath", filename)
+	s_preview_file = filename
+	s_preview_source = ""
+	wave /z preview_image
+	
+	svar /z s_file_info
+	if (! svar_exists(s_file_info))
+		string /g s_file_info
+	endif
+	if (strlen(s_preview_file) > 0)
+		s_file_info = mtrx_load_info("pearl_explorer_filepath", filename)
+	else
+		s_file_info = ""
+	endif
+	
+	setdatafolder saveDF
+	return preview_image
+end
+
+/// from matrixfilereader help
+Structure errorCode
+	int32	 SUCCESS 
+	int32	 UNKNOWN_ERROR
+	int32	 ALREADY_FILE_OPEN
+	int32	 EMPTY_RESULTFILE
+	int32	 FILE_NOT_READABLE
+	int32	 NO_NEW_BRICKLETS
+	int32	 WRONG_PARAMETER
+	int32	 INTERNAL_ERROR_CONVERTING_DATA
+	int32	 NO_FILE_OPEN
+	int32	 INVALID_RANGE
+	int32	 WAVE_EXIST
+EndStructure
+
+/// from matrixfilereader help
+static Function initStruct(errorCode)
+	Struct errorCode &errorCode
+
+	errorCode.SUCCESS =0
+	errorCode.UNKNOWN_ERROR=10001
+	errorCode.ALREADY_FILE_OPEN=10002
+	errorCode.EMPTY_RESULTFILE=10004
+	errorCode.FILE_NOT_READABLE=10008
+	errorCode.NO_NEW_BRICKLETS=10016
+	errorCode.WRONG_PARAMETER=10032
+	errorCode.INTERNAL_ERROR_CONVERTING_DATA=10064
+	errorCode.NO_FILE_OPEN=10128
+	errorCode.INVALID_RANGE=10256  
+	errorCode.WAVE_EXIST=10512
+	
+end
+
+/// load all data from a Matrix data file.
+///
+function mtrx_load_all()
+
+	struct errorCode errorCode
+	initStruct(errorCode)
+
+#if exists("MFR_OpenResultFile")
+	MFR_OpenResultFile
+	if(V_flag != errorCode.SUCCESS)
+		MFR_GetXOPErrorMessage
+		return -1
+	endif
+
+	MFR_GetBrickletData
+	if(V_flag != errorCode.SUCCESS)
+		MFR_GetXOPErrorMessage
+		return -1
+	endif
+
+	MFR_GetBrickletMetaData
+	if(V_flag != errorCode.SUCCESS)
+		MFR_GetXOPErrorMessage
+		return -1
+	endif
+
+	return 0
+#else
+	return -1
+#endif
+end
+
+/// parse matrix file names
+///
+/// parse matrix file names for result name, run cycle, scan cycle, and channel.
+///
+/// @param fileName			matrix result or data file name (without path).
+///
+/// @param resultFile			(out) base name of the result file.
+///							append "_%04u.mtrx" to get the actual result file.
+///							we do not know the chain link number at this stage.
+///
+/// @param runCycle			(out) run cycle number. necessary to look up the bricklet ID.
+///
+/// @param scanCycle		(out) scan cycle number. necessary to look up the bricklet ID.
+///
+/// @param channel			(out) channel name.
+///
+/// @return file type
+///	@arg 0 result file (logbook)
+///	@arg 1 result data file (bricklet)
+///
+/// result file names look like:
+/// default_2015Apr20-124353_STM-STM_AtomManipulation_0001.mtrx,
+/// default_2015Apr20-124353_STM-STM_AtomManipulation_0002.mtrx, etc.
+/// the function returns the first part up to the experiment name ("AtomManipulation" in the examples).
+/// all other return values set to defaults and must not be regarded.
+///
+/// result data files look like:
+/// default_2015Apr20-124353_STM-STM_AtomManipulation--136_1.Aux1(V)_mtrx,
+/// default_2015Apr20-124353_STM-STM_AtomManipulation--136_1.I(V)_mtrx,
+/// default_2015Apr20-124353_STM-STM_AtomManipulation--14_1.I_mtrx,
+/// default_2015Apr20-124353_STM-STM_AtomManipulation--14_1.Z_mtrx, etc.
+/// the function returns all results as described in the parameter list.
+///
+function mtrx_parse_filename(fileName, resultFile, runCycle, scanCycle, channel)
+	string fileName
+	string &resultFile
+	variable &runCycle
+	variable &scanCycle
+	string &channel
+	
+	variable fileType = 0
+	resultFile = ""
+	channel = ""
+	runCycle = 0
+	scanCycle = 0
+
+	string regexp = ""
+	string index1 = ""
+	string index2 = ""
+	string extension = ""
+	
+	if (StringMatch(fileName, "*.mtrx"))
+		regexp = "(.+)_([[:digit:]]+)\.(.+)"
+		SplitString /E=regexp fileName, resultFile, index1, extension
+		fileType = 0
+	else
+		regexp = "(.+)--([[:digit:]]+)_([[:digit:]]+)\.((.+)_mtrx)"
+		SplitString /E=regexp fileName, resultFile, index1, index2, extension, channel
+		fileType = 1
+		runCycle = str2num(index1)
+		scanCycle = str2num(index2)
+	endif
+	
+	return fileType
+end
+
+/// split a matrix filename and return the first three parts
+///
+/// we assume that the second (third) part contains the date (time).
+/// the parts are separated by dash or underscore.
+///
+function /s mtrx_split_filename(fileName, prefix, datepart, timepart)
+	string fileName
+	string &prefix
+	string &datepart
+	string &timepart
+	
+	string regexp
+	regexp = "([[:alpha:][:digit:]]+)[-_]([[:alpha:][:digit:]]+)[-_]([[:alpha:][:digit:]]+)[-_].+"
+	SplitString /E=regexp fileName, prefix, datepart, timepart
+	return datepart
+end
+
+/// create or look up a data folder based on a matrix file name.
+///
+/// the name of the folder is mtrx_date_time, where date and time are parsed from the file name.
+/// for this to work, the file name must consist of at least three parts that are separated by dash or underscore.
+/// the second (third) part contains the date (time).
+/// date and time are copied as strings.
+///
+/// if the data folder exists, a reference to the existing folder is returned.
+///
+/// @param fileName		name of the result or data file.
+///
+/// @param df_base		(optional) base data folder. 
+///						default: current folder.
+///
+/// @return				reference of the newly created or existing data folder.
+///
+function /df mtrx_create_folder(fileName, [df_base])
+	string fileName
+	dfref df_base
+	
+	if (ParamIsDefault(df_base))
+		df_base = GetDataFolderDFR()
+	endif
+
+	string prefix
+	string datepart
+	string timepart
+	string folderName
+	
+	mtrx_split_filename(fileName, prefix, datepart, timepart)
+	folderName = "mtrx_" + datepart + "_" + timepart
+	folderName = CleanupName(folderName, 0)
+	
+	dfref df_save = GetDataFolderDFR()
+	setdatafolder root:
+	newdatafolder /o /s $foldername
+	dfref df = GetDataFolderDFR()
+
+	setdatafolder df_save
+	return df
+end
+
+/// create a data folder for bricklet data.
+///
+/// the name of the folder is, for example "r23s2" where the first (second) number is the run (scan) cycle.
+/// run cycle and scan cycle numbers are taken from the open matrix file unless overridden by optional arguments.
+///
+/// if the data folder exists, a reference to the existing folder is returned.
+/// if one of the run or scan cycle numbers is lower than 1, the base folder is returned.
+///
+/// @param df_base		(optional) base data folder. 
+///						default: current folder.
+///
+/// @param runCycle		(optional) run cycle number. must be >= 1.
+///						default: from last mtrx_open_file call.
+///
+/// @param scanCycle	(optional) scan cycle number. must be >= 1.
+///						default: from last mtrx_open_file call.
+///
+/// @return				reference of the newly created or existing data folder.
+///
+function /df mtrx_get_cycle_folder([df_base, runCycle, scanCycle])
+	dfref df_base
+	variable runCycle
+	variable scanCycle
+
+	dfref df_save = GetDataFolderDFR()
+	dfref df_pack = $(package_path)
+	if (ParamIsDefault(df_base))
+		df_base = GetDataFolderDFR()
+	endif
+	if (ParamIsDefault(runCycle))
+		nvar /sdfr=df_pack defRunCycle = runCycle
+		runCycle = defRunCycle
+	endif
+	if (ParamIsDefault(scanCycle))
+		nvar /sdfr=df_pack defScanCycle = scanCycle
+		scanCycle = defScanCycle
+	endif
+
+	string dfname
+	if ((runCycle >= 1) && (scanCycle >= 1))
+		sprintf dfname, "r%us%u", runCycle, scanCycle
+		setdatafolder df_base
+		dfref df = $dfname
+		if (DataFolderRefStatus(df) == 0)
+			newdatafolder $dfname
+			dfref df = $dfname
+		endif
+	else
+		dfref df = df_base
+	endif
+	
+	setdatafolder df_save
+	return df
+end
+
+/// find out bricklet ID of a file
+///
+/// @warning EXPERIMENTAL
+/// the code of this function is inefficient.
+/// the function may be removed in a later version.
+///
+/// @param resultFile			base name of result file without chain link number and extension.
+///							as returned by mtrx_parse_filename.
+///
+/// @param runCycle			requested run cycle.
+///							0 = first available.
+///
+/// @param scanCycle		requested scan cycle.
+///							0 = first available.
+///
+/// @param channel			channel name. for example: "I", "Z", "Aux(V)", etc.
+///							empty string: first available.
+///
+/// @return bricklet ID, or -1 if an error occurred.
+///
+function mtrx_file_brickletID(resultFile, runCycle, scanCycle, channel)
+	string resultFile
+	variable runCycle
+	variable scanCycle
+	string channel
+
+	dfref df_overview = NewFreeDataFolder()
+	variable link = 1
+	variable id = -1
+	variable idx = 0
+	
+	string resultFileName
+#if exists("MFR_OpenResultFile")
+	struct errorCode errorCode
+	initStruct(errorCode)
+	do
+		sprintf resultFileName, "%s_%04u.mtrx", resultFile, link
+		MFR_OpenResultFile /K resultFileName
+		if(V_flag != errorCode.SUCCESS)
+			return -1
+		endif
+		MFR_CreateOverviewTable /DEST=df_overview
+		// dimension labels are: brickletID, scanCycleCount, runCycleCount, sequenceID, dimension, channelName
+		wave /t /sdfr=df_overview overviewTable
+		make /n=(dimsize(overviewTable, 0)) /i /u /free runcycles, scancycles, ids, match
+		make /n=(dimsize(overviewTable, 0)) /t /free channels
+		ids = str2num(overviewtable[p][%brickletID])
+		if (runcycle > 0)
+			runcycles = str2num(overviewtable[p][%runCycleCount])
+		else
+			runcycles = runcycle
+		endif
+		if (scancycle > 0)
+			scancycles = str2num(overviewtable[p][%scanCycleCount])
+		else
+			scancycles = scancycle
+		endif
+		if (strlen(channel) > 0)
+			channels = overviewTable[p][%channelName]
+		else
+			channels = channel
+		endif
+		Extract /FREE ids, match_ids, (scancycles == scanCycle) && (runcycles == runCycle) && (cmpstr(channels, channel) == 0)
+		if (numpnts(match_ids) > 0)
+			id = match_ids[0]
+		else
+			link += 1
+		endif
+	while (id < 0)
+#endif
+	return id
+end
+
+/// open a matrix result or data file
+///
+/// this function opens a matrix result file (.mtrx) or data file (.*_mtrx).
+///
+/// if a data file is selected, the function locates the corresponding result file, opens it,
+/// and looks up the bricklet ID of the data file.
+/// if a result file is selected, the function opens it but does not look up bricklet IDs.
+///
+/// the result file remains open and can be accessed using the mtrx_ functions or MFR_ operations.
+/// once a result file is open, you can easily access any bricklets linked to it,
+/// i.e., any run cycle, scan cycle, and channel.
+///
+/// the function stores information about the opened file in a global package data folder.
+/// if the same result file is opened again later, the information is reused and the file not read again.
+/// this may cause problems if the file has been modified in the meantime,
+/// or if the cached data become corrupt for some reason.
+/// the function detects if a data file is not linked in the open result file, and updates the cache.
+/// in other situations it may be necessary to force a reload.
+///
+/// @todo fix possible cache issues, add an option to override the cache.
+///
+/// @param pathName			igor path name or empty string.
+///
+/// @param fileName			file name, with or without path, or empty string.
+///
+/// @return file type
+///	@arg 0 result file (logbook)
+///	@arg 1 result data file (bricklet)
+///	@arg -1 error, no data loaded
+///	@arg -2 matrixfilereader.xop not installed
+///
+function mtrx_open_file(pathName, fileNameOrPath)
+	string pathName
+	string fileNameOrPath
+
+	check_package_folder()
+	dfref df_save = GetDataFolderDFR()
+	dfref df_pack = $(package_path)
+	svar /sdfr=df_pack dataFilePath
+	svar /sdfr=df_pack resultFilePath
+	nvar /sdfr=df_pack runCycle
+	nvar /sdfr=df_pack scanCycle
+	svar /sdfr=df_pack channelName
+	nvar /sdfr=df_pack brickletID
+
+	string loc_resultFileName
+	string loc_resultFilePath
+	variable loc_runCycle
+	variable loc_scanCycle
+	string loc_channelName
+
+	// make sure we have a valid and complete file path
+	GetFileFolderInfo /P=$pathName /Q /Z=2 fileNameOrPath
+	string filePath
+	if ((v_flag == 0) && (v_isFile))
+		filePath = s_path
+	else
+		return -1
+	endif
+
+	// get base file name
+	string fileName
+	string fileDir
+	string baseFileName
+	variable fileType
+	fileName = ParseFilePath(0, filePath, ":", 1, 0)
+	fileDir = ParseFilePath(1, filePath, ":", 1, 0)
+	fileType = mtrx_parse_filename(fileName, baseFileName, loc_runCycle, loc_scanCycle, loc_channelName)
+	
+	variable link = 1
+	variable id = -1
+	variable result = -1
+	variable using_cache = 0
+	
+	struct errorCode errorCode
+	initStruct(errorCode)
+	do
+		sprintf loc_resultFileName, "%s_%04u.mtrx", baseFileName, link
+		loc_resultFilePath = fileDir + loc_resultFileName
+#if exists("MFR_OpenResultFile")
+		if ((strlen(resultFilePath) == 0) || (cmpstr(loc_resultFilePath, resultFilePath) != 0))
+			MFR_OpenResultFile /K loc_resultFilePath
+			if(V_flag != errorCode.SUCCESS)
+				MFR_GetXOPErrorMessage
+				result = -1
+				break
+			endif
+			resultFilePath = loc_resultFilePath
+			if (fileType == 1)
+				dataFilePath = filePath
+			else
+				dataFilePath = ""
+			endif
+			runCycle = 0
+			scanCycle = 0
+			channelName = ""
+			brickletID = 0
+			MFR_CreateOverviewTable /DEST=df_pack
+			if(V_flag != errorCode.SUCCESS)
+				MFR_GetXOPErrorMessage
+				result = -1
+				break
+			endif
+			using_cache = 0
+		else
+			using_cache = 1
+		endif
+#else
+		print "matrixfilereader.xop not installed"
+		result = -2
+		break
+#endif
+		// dimension labels are: brickletID, scanCycleCount, runCycleCount, sequenceID, dimension, channelName
+		wave /t /sdfr=df_pack overviewTable
+		make /n=(dimsize(overviewTable, 0)) /i /u /o df_pack:runCycles, df_pack:scanCycles, df_pack:ids
+		make /n=(dimsize(overviewTable, 0)) /t /o df_pack:channels
+		wave /sdfr=df_pack ids, runCycles, scanCycles
+		wave /t /sdfr=df_pack channels
+		ids = str2num(overviewtable[p][%brickletID])
+		runCycles = str2num(overviewtable[p][%runCycleCount])
+		scanCycles = str2num(overviewtable[p][%scanCycleCount])
+		channels = overviewTable[p][%channelName]
+		result = fileType
+
+		// if a data file is opened, make sure we found the right result file
+		if ((loc_runCycle > 0) && (loc_scanCycle > 0))
+			Extract /FREE ids, match_ids, (runCycles == loc_runCycle) && (scanCycles == loc_scanCycle) && (cmpstr(channels, loc_channelName) == 0)
+			if (numpnts(match_ids) > 0)
+				id = match_ids[0]
+				runCycle = loc_runCycle
+				scanCycle = loc_scanCycle
+				channelName = loc_channelName
+				brickletID = id
+				break
+			elseif (using_cache)
+				resultFilePath = ""
+			else
+				link += 1
+			endif
+		else
+			break
+		endif
+	while (id < 0)
+	
+	return result
+end
+
+/// load a preview image from a Matrix data file.
+///
+/// the data wave is loaded into the current data folder.
+///
+/// @param destName			destination wave name. the wave is created in the current data folder.
+///
+/// @param pathName			igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
+///
+/// @param fileName			if empty a dialog box shows up
+///							the file name must adhere to the format
+///							"{prefix}-{date}-{time}-{anything}--{run_cycle}_{scan_cycle}.{extension}".
+///							the first three seperators can alternatively be underscores.
+///							it may be necessary to change the configuration of the Matrix application.
+///
+/// @param traces			(currently not used) semicolon-separated list of preferred traces.
+///							the items of the list are match strings for the Igor StringMatch function.
+///							only the first matching trace is loaded from the file.
+///							default: "*Up;*Down;*ReUp;*ReDown;"
+///
+/// @return					semicolon-separated list of loaded waves including partial path from current data folder.
+///
+function /s mtrx_load_preview(destName, pathName, fileName, [traces])
+	string destName
+	string pathName
+	string fileName
+	string traces
+		
+	if (ParamIsDefault(traces))
+		traces = "*Up;*Down;*ReUp;*ReDown;"
+	endif
+	
+	dfref df_save = GetDataFolderDFR()
+
+	string datanames = ""
+	string datapaths = ""
+	variable filestatus = mtrx_open_file(pathName, fileName)
+	if (filestatus != 1)
+		return ""
+	endif
+
+	dfref df_pack = $(package_path)
+	svar /sdfr=df_pack dataFilePath
+	svar /sdfr=df_pack resultFilePath
+	nvar /sdfr=df_pack runCycle
+	nvar /sdfr=df_pack scanCycle
+	svar /sdfr=df_pack channelName
+	nvar /sdfr=df_pack brickletID
+
+#if exists("MFR_OpenResultFile")
+	dfref df_data = df_save
+	variable /g df_data:V_MatrixFileReaderOverwrite = 1
+	variable /g df_data:V_MatrixFileReaderFolder = 0
+	variable /g df_data:V_MatrixFileReaderDouble = 0
+	struct errorCode errorCode
+	initStruct(errorCode)
+	MFR_GetBrickletData /N=destName /R=(brickletID) /S=2 /DEST=df_data
+	if(V_flag == errorCode.SUCCESS)
+		datanames = S_waveNames
+		variable i
+		variable n = ItemsInList(datanames)
+		string s
+		s = StringFromList(0, datanames)
+		wave data = $s
+		mtrx_scale_dataset(data)
+		if (WaveDims(data) == 2)
+			subtract_line_bg(data)
+		endif
+		datapaths = AddListItem(GetWavesDataFolder(data, 4), datapaths, ";", inf)
+		for (i = 1; i < n; i += 1)
+			s = StringFromList(i, datanames)
+			killwaves /z $s
+		endfor
+	else
+		MFR_GetXOPErrorMessage
+	endif
+	//MFR_GetBrickletMetaData /N=ANickName /R=(brickletID) // /DEST=dfref
+#else
+	print "matrixfilereader.xop not installed"
+#endif
+	
+	setdatafolder df_save
+	return datapaths
+end
+
+/// load all data from a Matrix data file.
+///
+/// the data wave is loaded into a sub-subfolder the current data folder.
+/// the relative path has the format ":mtrx_{date}_{time}:r{run_cycle}s{scan_cycle}",
+/// where the parameters {date}, {time}, {run_cycle} and {scan_cycle} are copied from the file name.
+/// the file name must be formatted according to the specifications set out below.
+///
+/// @param pathName			igor symbolic path name. can be empty if the path is specified in FileName or a dialog box should be displayed
+///
+/// @param fileName			if empty a dialog box shows up
+///							the file name must adhere to the format
+///							"{prefix}-{date}-{time}-{anything}--{run_cycle}_{scan_cycle}.{extension}".
+///							the first three seperators can alternatively be underscores.
+///							it may be necessary to change the configuration of the Matrix application.
+///
+/// @param traces			(currently not used) semicolon-separated list of preferred traces.
+///							the items of the list are match strings for the Igor StringMatch function.
+///							only matching traces are loaded from the file.
+///							default: "*Up;*Down;*ReUp;*ReDown;"
+///
+/// @return					semicolon-separated list of loaded waves including partial path from current data folder.
+///
+function /s mtrx_load_file(pathName, fileName, [traces])
+	string pathName
+	string fileName
+	string traces
+		
+	if (ParamIsDefault(traces))
+		traces = "*Up;*Down;*ReUp;*ReDown;"
+	endif
+	
+	dfref df_save = GetDataFolderDFR()
+
+	string datanames = ""
+	string datapaths = ""
+	variable filestatus = mtrx_open_file(pathName, fileName)
+	if (filestatus != 1)
+		return ""
+	endif
+
+	dfref df_pack = $(package_path)
+	svar /sdfr=df_pack dataFilePath
+	svar /sdfr=df_pack resultFilePath
+	nvar /sdfr=df_pack runCycle
+	nvar /sdfr=df_pack scanCycle
+	svar /sdfr=df_pack channelName
+	nvar /sdfr=df_pack brickletID
+
+#if exists("MFR_OpenResultFile")
+	string resultFileName = ParseFilePath(0, resultFilePath, ":", 1, 0)
+	dfref df_result = mtrx_create_folder(resultFileName, df_base=df_save)
+	dfref df_data = mtrx_get_cycle_folder(df_base = df_result)
+	variable /g df_data:V_MatrixFileReaderOverwrite = 1
+	variable /g df_data:V_MatrixFileReaderFolder = 0
+	variable /g df_data:V_MatrixFileReaderDouble = 0
+	
+	struct errorCode errorCode
+	initStruct(errorCode)
+	string name
+	name = CleanupName(channelName, 0)
+	MFR_GetBrickletData /N=name /R=(brickletID) /DEST=df_data
+	if(V_flag == errorCode.SUCCESS)
+		datanames = S_waveNames
+		variable i
+		variable n = ItemsInList(datanames)
+		string s
+		for (i = 0; i < n; i += 1)
+			s = StringFromList(i, datanames)
+			wave /sdfr=df_data data = $s
+			mtrx_scale_dataset(data)
+			datapaths = AddListItem(GetWavesDataFolder(data, 4), datapaths, ";", inf)
+		endfor
+	else
+		MFR_GetXOPErrorMessage
+	endif
+	//MFR_GetBrickletMetaData /N=ANickName /R=(brickletID) // /DEST=dfref
+#else
+	print "matrixfilereader.xop not installed"
+#endif
+	
+	setdatafolder df_save
+	return datapaths
+end
+
+function mtrx_scale_dataset(data)
+	wave data
+
+	dfref df_pack = $(package_path)
+	nvar /sdfr=df_pack runCycle
+	nvar /sdfr=df_pack scanCycle
+	svar /sdfr=df_pack channelName
+	nvar /sdfr=df_pack brickletID
+
+	string scanDir = StringFromList(2, NameOfWave(data), "_")
+	if (WaveDims(data) == 2)
+		Note data, "AxisLabelX=X"
+		Note data, "AxisLabelY=Y"
+	endif
+	Note data, "AxisLabelD=" + channelName
+	string title
+	sprintf title, "%u-%u %s %s", runCycle, scanCycle, channelName, scanDir
+	Note data, "Dataset=" + title
+end
+
+/// load descriptive info from a Matrix data file.
+///
+/// the info string lists the following information for each scan contained in the file:
+/// - path of the scan group inside the file.
+/// - number of scan positions.
+/// - dataset names of scan positioners.
+/// - dataset names of detectors.
+///
+/// @param APathName		igor symbolic path name. can be empty if the path is specified in AFileName or a dialog box should be displayed
+///
+/// @param AFileName		if empty a dialog box shows up
+///
+/// @return					newline terminated string.
+///
+function /s mtrx_load_info(APathName, AFileName)
+	string APathName
+	string AFileName
+		
+	dfref saveDF = GetDataFolderDFR()
+	dfref fileDF = NewFreeDataFolder()
+	setdatafolder fileDF
+
+	variable fileID
+	string filepath
+	string scanpaths
+	variable nscans
+	variable iscan
+	string scanpath
+	string info = ""
+	  
+	
+	setdatafolder saveDF
+	return info
+end
+
+/// remove linear background line-by-line
+///
+function subtract_line_bg(img)
+	wave img
+	
+	variable nx = dimsize(img, 0)
+	variable ny = dimsize(img, 1)
+	variable iy
+	make /n=(nx) /free line, fit
+	for (iy = 0; iy < ny; iy += 1)
+		line = img[p][iy]
+		if (numtype(sum(line)) == 0)
+			CurveFit /N /Q /NTHR=0 line line /D=fit
+			img[][iy] = line[p] - fit[p]
+		endif
+	endfor
+end
--- a/pearl/pearl-menu.ipf
+++ b/pearl/pearl-menu.ipf
@ -55,10 +55,8 @@ menu "PEARL"
 	end
 	
 	submenu "Services"
-		PearlMenuEnableFunc("pearl_elog") + "ELOG Experiments", /Q, pearl_elog("Experiments")
-		help = {"Create entries in ELOG experiments logbook"}
-		PearlMenuEnableFunc("pearl_elog") + "ELOG Calculations", /Q, pearl_elog("Calculations")
-		help = {"Create entries in ELOG calculations logbook"}
+		PearlMenuEnableFunc("pearl_elog") + "Open ELOG Panel", /Q, pearl_elog("")
+		help = {"Open an ELOG panel to send entries to an ELOG logbook"}
 	end
 	
 	submenu "Sample Preparation"
--- a/pearl/pearl-preparation.ipf
+++ b/pearl/pearl-preparation.ipf
@ -1,73 +0,0 @@
-#pragma rtGlobals=3		// Use modern global access method and strict wave access.
-#pragma IgorVersion = 6.1
-#pragma ModuleName = PearlPreparation
-#pragma version = 1.04
-#include "pearl-area-display" // 2D and 3D data visualization
-#include "pearl-area-profiles" // data processing for multi-dimensional datasets
-#include "pearl-elog"
-#if exists("pvOpen")
-#include "pearl-epics" // EPICS access under Igor
-#include "pearl-anneal" // automated sample annealing
-#endif
-
-// author: matthias.muntwiler@psi.ch
-// Copyright (c) 2015 Paul Scherrer Institut
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-//   you may not use this file except in compliance with the License.
-//   You may obtain a copy of the License at
-//   http://www.apache.org/licenses/LICENSE-2.0
-
-/// @file
-/// @brief PEARL sample preparation package
-///
-/// this procedure defines the PEARL sample preparation package
-/// the main purpose of this file is to load the necessary dependent procedures
-/// (see the include statements at the top)
-///
-/// @pre
-/// * on-line process control functionality requires the EPICS XOP to be loaded
-///
-/// @author matthias muntwiler, matthias.muntwiler@psi.ch
-///
-/// @copyright 2015 Paul Scherrer Institut @n
-/// Licensed under the Apache License, Version 2.0 (the "License"); @n
-///   you may not use this file except in compliance with the License. @n
-///   You may obtain a copy of the License at
-///   http://www.apache.org/licenses/LICENSE-2.0
-
-/// @namespace PearlPreparation
-/// @brief PEARL sample preparation package
-///
-/// PearlPreparation is declared in @ref pearl-preparation.ipf.
-///
-
-/// @defgroup PreparationPackage Sample preparation package
-/// @brief PEARL sample preparation package
-///
-/// The purpose of a package is to load a bunch of dependent procedure files.
-/// The sample preparation package loads the following files.
-///
-/// * pearl-area-import.ipf
-/// * pearl-area-display.ipf
-/// * pearl-area-profiles.ipf
-/// * pearl-elog.ipf
-/// * pearl-anneal.ipf
-///
-/// The following files are loaded if the EPICS.XOP is present:
-///
-/// * pearl-epics.ipf
-///
-
-/// initializes package data once when the procedure is first loaded
-static function AfterCompiledHook()
-
-	dfref savefolder = GetDataFolderDFR()
-
-	return 0
-end
-
-function UnloadPearlPreparationPackage()
-	execute /p/q/z "DELETEINCLUDE \"pearl-preparation\""
-	execute /p/q/z "COMPILEPROCEDURES "
-end
--- a/pearl/pearl-pshell-import.ipf
+++ b/pearl/pearl-pshell-import.ipf
--- a/pearl/pearl-scienta-preprocess.ipf
+++ b/pearl/pearl-scienta-preprocess.ipf
@ -703,3 +703,99 @@ function scienta_poly_bg(w, e, a): fitfunc
 	
 	return bg * (base + pk1 + pk2 + pk3)
 end
+
+/// parameter dialog for the redim_linbg_reduction() function
+///
+/// @param param	parameter string in a key1=value1;key2=value2;... list.
+///					the parameter string is passed by reference.
+///					see redim_linbg_reduction() for a description of parameters.
+///
+/// @return	zero if the user clicked OK, non-zero if the user clicked Cancel.
+///
+function prompt_redim_linbg_reduction(param)
+	string &param
+
+	variable Lcrop = NumberByKey("Lcrop", param, "=", ";")
+	variable Lsize = NumberByKey("Lsize", param, "=", ";")
+	variable Hcrop = NumberByKey("Hcrop", param, "=", ";")
+	variable Hsize = NumberByKey("Hsize", param, "=", ";")
+	variable Cpos = NumberByKey("Cpos", param, "=", ";")
+	variable Csize = NumberByKey("Csize", param, "=", ";")
+	
+	prompt Lcrop, "Lower cropping region"
+	prompt Hcrop, "Upper cropping region"
+	prompt Lsize, "Lower background region"
+	prompt Hsize, "Upper background region"
+	prompt Cpos, "Center position"
+	prompt Csize, "Center integration region"
+	
+	doprompt "redim_linbg_reduction Parameters", lcrop, hcrop, lsize, hsize, cpos, csize
+	if (v_flag == 0)
+		param = ReplaceNumberByKey("Lcrop", param, Lcrop, "=", ";")
+		param = ReplaceNumberByKey("Lsize", param, Lsize, "=", ";")
+		param = ReplaceNumberByKey("Hcrop", param, Hcrop, "=", ";")
+		param = ReplaceNumberByKey("Hsize", param, Hsize, "=", ";")
+		param = ReplaceNumberByKey("Cpos", param, Cpos, "=", ";")
+		param = ReplaceNumberByKey("Csize", param, Csize, "=", ";")
+	endif
+
+	return v_flag
+end
+
+/// linear background reduction function for incorrectly dimensioned scienta image
+///
+/// if the energy step size does not divide the energy range to an integer number,
+/// the scienta image is exported with the wrong array size.
+/// this can be fixed by redimensioning the array.
+/// 
+/// the current implementation works in the case where dimension 0 needs to be incremented.
+/// the function may be generalized to dimension 1 and/or decrementing by additional parameters.
+/// it is not known yet whether a generalization is needed or whether it can cover all cases.
+///
+/// background subtraction and peak integration is the same as by the int_linbg_reduction() function.
+///
+/// @param source	source wave
+///					Scienta detector image, energy axis along X, angle axis along Y
+///
+/// @param dest1		destination wave 1
+///
+/// @param dest2		destination wave 2
+///					each wave is a one-dimensional intensity distribution
+///					the function may redimension these waves to one of the image dimensions
+///					(it must be clear to the user which dimension this is).
+///					the meaning of dest1 and dest2 is up to the particular function,
+///					e.g. dest1 could hold the mean value and dest2 the one-sigma error,
+///					or dest1 could hold the X-profile, and dest2 the Y-profile.
+///
+/// @param param	parameter string in a key1=value1;key2=value2;... list.
+///					the parameter string is passed by reference.
+///
+/// all region parameters are relative to the image size (0...1).
+/// @arg Lcrop	size of the lower cropping region
+/// @arg Hcrop	size of the upper cropping region
+/// @arg Lsize	size of the lower background integration region
+/// @arg Hsize	size of the upper background integration region
+/// @arg Cpos	center position of the of the peak integration region
+/// @arg Csize	size of the peak integration region
+///	
+/// typical values (peak centered on detector, FWHM ~ 20 % of image)
+/// Lcrop=0.11;Hcrop=0.11;Lsize=0.2;Hsize=0.2;Cpos=0.5;Csize=0.2
+///
+/// @return zero if successful, non-zero if an error occurs.
+///
+threadsafe function redim_linbg_reduction(source, dest1, dest2, param)
+	wave source
+	wave dest1, dest2
+	string &param
+	
+	variable nx = dimsize(source, 0)
+	variable ny = dimsize(source, 1)
+	
+	duplicate /free source, source_redim
+	redimension /n=(nx * ny) source_redim
+	nx += 1
+	redimension /n=(nx, ny) source_redim
+	
+	return int_linbg_reduction(source_redim, dest1, dest2, param)
+end
+
--- a/pearl/preferences/pearl_elog/preferences.pxp
+++ b/pearl/preferences/pearl_elog/preferences.pxp
Author	SHA1	Message	Date
matthias muntwiler	80a01f2bdb	updates: pshell import, angle-scans, elog - pshell import: fix units and data scaling. - pshell import: support new multi-region scans. - angle scans: add trim function. - angle scans: update import_tpi_scan function. - angle scans: fix scales of check waves in normalization. - area display: new cursor mode for background selection. - elog: bugfixes (attachment list, check existing logbook).	2017-07-04 11:06:49 +02:00
matthias muntwiler	9a65d26984	updates: scaling of pshell data, matrix preview, elog panel - elog panel supports multiple attachments - matrix (omicron STM) data file preview in data explorer - various improvements for the scaling of pshell data	2017-02-02 15:31:13 +01:00
matthias muntwiler	c8a69460bc	updates: igor 7, map projections, hemi cuts, longitudinal section - pearl procedures compile under igor 7. some features may not work, e.g. 3D graphics with gizmo. - add orthographic map projection to angle scans. - add functions for azimuthal and polar cuts through hemispherical scan. - add function to load longitudinal section from pshell data file.	2016-10-14 16:56:20 +02:00
matthias muntwiler	600061f684	bugfixes in pshell import and preview changes: - fix null string exception in preview - fix transposition of two-dimensional datasets	2016-09-23 19:11:07 +02:00
matthias muntwiler	0dc6ca820b	bugfix release: pshell import and preview changes: - catch runtime errors due to empty datasets - improve window titles and graph names - fix scaling of scienta image from XPSSpectrum script - remove unnecessary spaces and underscores from folder names	2016-09-22 14:15:09 +02:00
matthias muntwiler	a87975d1e6	update data explorer: axis scale and labels in preview	2016-08-17 12:12:52 +02:00
matthias muntwiler	86cf328961	README.md: fix heading levels	2016-06-06 16:07:19 +02:00
matthias muntwiler	2479582c08	README.md: add release notes	2016-06-06 16:04:56 +02:00
matthias muntwiler	02709fd4df	maintenance release: pshell import, elog, documentation * bugfixes in pshell import * updates to elog interface: templates, login, separate persistent and volatile data * new header and revision information in documentation	2016-06-03 12:06:04 +02:00
matthias muntwiler	724c73ef19	remove unnecessary files and dependencies * remove unit tests (require third-party testing framework) * remove sample preparation (require EPICS.XOP) * remove scans and live view (require EPICS.XOP) these files are useful for hard-core developers or on-site only. for all off-site use, broken dependencies cause unnecessary problems. contact the PEARL staff if you need to use one of the omitted files.	2016-04-22 13:53:26 +02:00
matthias muntwiler	fcd6a56e4e	new feature: preview and import of pshell data files	2016-04-09 13:07:37 +02:00