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).

pearl/pearl-area-display.ipf

@@ -196,6 +196,7 @@ function /s ad_display_profiles(image, [filter])
 	view_filter_options = ""
 	variable /g view_filter_smoothing_x = 1
 	variable /g view_filter_smoothing_y = 1
+	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_")
@@ -348,15 +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