igor-public/pearl/pearl-pmsco-import.ipf

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9.7 KiB
Igor

#pragma TextEncoding = "UTF-8"
#pragma rtGlobals=3 // Use modern global access method and strict wave access.
#pragma IgorVersion = 6.2
#pragma ModuleName = PearlPmscoImport
// copyright (c) 2018 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 data import/export procedures for multiple scattering calculations.
/// @ingroup ArpesPackage
///
///
///
/// @author matthias muntwiler, matthias.muntwiler@psi.ch
///
/// @copyright 2018 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 PearlPmscoImport
/// @brief data import/export procedures for multiple scattering calculations.
///
/// PearlPmscoImport is declared in @ref pearl-pmsco-import.ipf.
/// save waves in a PMSCO scan data file.
///
/// @warning experimental. this function is work in progress.
///
/// cases
/// - phd scan: separate energy, theta, phi, alpha, intensity waves
/// - hemi scan: separate energy, theta, phi, intensity waves
/// - polar/azi scan: intensity wave, angle is in x scale
///
/// options
/// - sigma wave
///
/// the data arguments are strings and can be
/// @arg the name of an existing wave
/// (optionally including a path relative to the specified source folder),
/// @arg the string representation of a constant numeric value,
/// @arg a dimension specifier ("x", "y", "z" or "t")
/// referring to the dimension scale of the intensity wave, or
/// @arg an empty string if the corresponding axis should not be saved.
///
/// wave names can include a path relative to the specified source data folder.
/// by default, the function looks in the folder specified by the sdfr argument.
///
/// @param pathname name of igor symbolic path to destination folder.
/// prompt user if empty.
///
/// @param filename requested file name.
/// prompt user if empty.
/// @note the extension should include the symbols of
/// the included parameters in the order "etpais".
/// if the intensity wave contains a modulation function,
/// ".modf" should be inserted before the extension.
/// in interactive mode, igor tends to override the file extension
/// with a standard one like ".txt".
///
/// @param energy energy specification. see description above.
///
/// @param theta theta specification. see description above.
///
/// @param phi phi specification. see description above.
///
/// @param alpha alpha specification. see description above.
///
/// @param intensity name of intensity (or modulation) wave.
/// this parameter is mandatory and must refer to an existing wave.
///
/// @param sigma sigma specification. see description above.
///
/// @param sdfr source data folder reference.
/// default: current data folder.
///
/// @return file name
///
function /s pmsco_save_scan(pathname, filename, energy, theta, phi, alpha, intensity, sigma, [sdfr])
string pathname
string filename
string energy
string theta
string phi
string alpha
string intensity
string sigma
dfref sdfr
//string fileext
//fileext = StringFromList(ItemsInList(filename, ".") - 1, filename, ".")
dfref savedf = GetDataFolderDFR()
dfref tempdf = NewFreeDataFolder()
if (ParamIsDefault(sdfr))
dfref sdfr = savedf
endif
SetDataFolder sdfr
wave w_intensity = $intensity
string wavenames = ""
wavenames = save_scan_helper("w_energy", energy, w_intensity, tempdf, wavenames)
wavenames = save_scan_helper("w_theta", theta, w_intensity, tempdf, wavenames)
wavenames = save_scan_helper("w_phi", phi, w_intensity, tempdf, wavenames)
wavenames = save_scan_helper("w_alpha", alpha, w_intensity, tempdf, wavenames)
wavenames = save_scan_helper("w_intensity", intensity, w_intensity, tempdf, wavenames)
wavenames = save_scan_helper("w_sigma", sigma, w_intensity, tempdf, wavenames)
setdatafolder tempdf
save /b /g /m="\n" /p=$pathname wavenames as filename
setdatafolder savedf
end
/// helper function for save_pmsco_scan()
///
static function /s save_scan_helper(destname, value, template, destdfr, wavenames)
string destname
string value
wave template
dfref destdfr
string wavenames
variable err = 0
if (strlen(value) > 0)
if (exists(value) == 1)
duplicate $value, destdfr:$destname
wave /sdfr=destdfr w=$destname
else
duplicate template, destdfr:$destname
wave /sdfr=destdfr w=$destname
variable numval = str2num(value)
string msg
if (numtype(numval) == 0)
w = numval
//elseif (cmpstr(value[0,0], "%") == 0)
else
strswitch(value)
case "x":
w = DimOffset(template, 0) + DimDelta(template, 0) * p
break
case "y":
w = DimOffset(template, 1) + DimDelta(template, 1) * q
break
case "z":
w = DimOffset(template, 2) + DimDelta(template, 2) * r
break
case "t":
w = DimOffset(template, 3) + DimDelta(template, 3) * s
break
default:
err = 1
sprintf msg, "invalid %s argument", StringFromList(1, destname, "_")
endswitch
endif
endif
if (err == 0)
wavenames = AddListItem(destname, wavenames, ";", inf)
variable npts = DimSize(w, 0) * max(DimSize(w, 1), 1) * max(DimSize(w, 2), 1) * max(DimSize(w, 3), 1)
Redimension /n=(npts) w
else
abort msg
endif
endif
return wavenames
end
/// load a PMSCO scan file into the current data folder.
///
/// the function loads all columns from the file.
/// the waves are named with two-letter names according to the file extension.
/// existing waves are overwritten.
///
/// the file extension must be `etpais` or a subset of it, e.g., `etpi`.
/// the wave names will be `en` (energy), `th` (theta), `ph` (phi), `al` (alpha),
/// `in` (intensity) or `mo` (modulation), and `si` (sigma).
///
/// @param pathname name of igor symbolic path to destination folder.
/// prompt user if empty.
///
/// @param filename requested file name.
/// prompt user if empty.
/// the extension must be a string of characters indicating the data of each column.
/// it must be "etpais" or any substring of it, and the columns must be ordered accordingly.
/// if the name contains `.modf`, the intensity wave is named as `mo` rather than `in`.
/// this behaviour can be overridden by the `is_modulation` flag.
///
/// @param is_modulation select whether the intensity column is named `mo` rather than `in`.
/// @arg 0 (default) decide based on existens of `.modf` in the file name.
/// @arg > 0 use `mo` regardless of file name.
/// @arg < 0 use `in` regardless of file name.
///
/// @param quiet (optional)
/// @arg 0 (default) print the file name and wave names to the history.
/// @arg 1 do not print messages to the history.
///
function /s load_pmsco_scan(pathname, filename, [is_modulation, quiet])
string pathname // name of a symbolic path
string filename
variable is_modulation
variable quiet
if (ParamIsDefault(quiet))
quiet = 0
endif
loadwave /p=$pathname /a /g /o /q filename
if (ParamIsDefault(is_modulation))
is_modulation = StringMatch(s_filename, "*.modf.*")
else
is_modulation = is_modulation > 0
endif
string fileext
string waves = ""
if (v_flag > 0)
fileext = StringFromList(ItemsInList(s_filename, ".") - 1, s_filename, ".")
variable nw = ItemsInList(s_wavenames)
variable iw
string sw1, sw2
for (iw = 0; iw < nw; iw += 1)
sw1 = StringFromlist(iw, s_wavenames)
strswitch(fileext[iw])
case "e":
sw2 = "en"
break
case "t":
sw2 = "th"
break
case "p":
sw2 = "ph"
break
case "a":
sw2 = "al"
break
case "i":
if (is_modulation)
sw2 = "mo"
else
sw2 = "in"
endif
break
case "s":
sw2 = "si"
break
endswitch
duplicate /o $sw1, $sw2
killwaves /z $sw1
waves = AddListItem(sw2, waves, ",", inf)
endfor
// Sort {en,th,ph, al} en,th,ph,al,int,sig
if (!quiet)
print "load_pmsco_scan ", s_filename, ": ", waves
endif
return s_filename
else
return ""
endif
end
/// load a PMSCO result file into the current data folder.
///
/// result files have the extension dat or tasks.dat.
/// this will overwrite existing waves.
/// the function loads all columns.
///
/// @param pathname name of a symbolic path
/// @param filename file name
/// @param quiet (optional) @arg 0 (default) print the file name and wave names to the history.
/// @arg 1 do not print messages to the history.
///
function /s load_pmsco_result(pathname, filename, [quiet])
string pathname // name of a symbolic path
string filename
variable quiet
if (ParamIsDefault(quiet))
quiet = 0
endif
if (quiet)
loadwave /p=$pathname /a /w /g /o /q filename
else
loadwave /p=$pathname /a /w /g /o filename
endif
if (v_flag > 0)
return s_filename
else
return ""
endif
end
/// load an xyz cluster file
///
/// load an xyz cluster file into the current data folder
/// the wave names are at (atom types), xx, yy, and zz.
/// at is a text wave containing chemical symbols.
/// existing waves are overwritten.
///
/// @param pathname name of igor symbolic path. can be empty (path is taken from filename argument).
///
/// @param filename file system path. can be empty (will open dialog).
///
function /s pmsco_load_xyz(pathname, filename)
string pathname
string filename
string cis = "N=at;N=xx;N=yy;N=zz;"
LoadWave /A /B=cis /J /K=0 /L={0, 2, 0, 0, 0} /V={" ", " ", 0, 0} /O /P=$pathname filename
wave /t at
at = unpadstring(at, 32)
end