/usr/share/gnudatalanguage/coyote/cgdotplot.pro is in gdl-coyote 2016.11.13-2.
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;
; NAME:
; cgDotPlot
;
; PURPOSE:
; The purpose of cgDotPlot is to create a "dot plot" of the sort described on this web page:
; http://peltiertech.com/Utility/DotPlotUtility.html.
;
;******************************************************************************************;
; ;
; Copyright (c) 2012, by Fanning Software Consulting, Inc. All rights reserved. ;
; ;
; Redistribution and use in source and binary forms, with or without ;
; modification, are permitted provided that the following conditions are met: ;
; ;
; * Redistributions of source code must retain the above copyright ;
; notice, this list of conditions and the following disclaimer. ;
; * Redistributions in binary form must reproduce the above copyright ;
; notice, this list of conditions and the following disclaimer in the ;
; documentation and/or other materials provided with the distribution. ;
; * Neither the name of Fanning Software Consulting, Inc. nor the names of its ;
; contributors may be used to endorse or promote products derived from this ;
; software without specific prior written permission. ;
; ;
; THIS SOFTWARE IS PROVIDED BY FANNING SOFTWARE CONSULTING, INC. ''AS IS'' AND ANY ;
; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ;
; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT ;
; SHALL FANNING SOFTWARE CONSULTING, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, ;
; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED ;
; TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ;
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ;
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ;
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ;
;******************************************************************************************;
;
;+
; The purpose of cgDotPlot is to create a "dot plot" of the sort described on this
; `web page <http://peltiertech.com/Utility/DotPlotUtility.html>`.
;
; .. image:: cgdotplot.png
;
; :Categories:
; Graphics
;
; :Params:
; labels: in, required, type=strarr
; A vector of string labels to be plotted along the left edge of the dot plot.
; values: in, required
; A vector of values associated with each label, representing the values to be
; plotted on the dot plot.
;
; :Keywords:
; addcmd: in, optional, type=boolean, default=0
; Set this keyword to add the command to the resizeable graphics window cgWindow.
; axiscolor: in, optional, type=string/integer, default='opposite'
; If this keyword is a string, the name of the axis color.
; Otherwise, the keyword is assumed to be a color index into the current color table.
; background: in, optional, type=string/integer, default='WHITE'
; If this keyword is a string, the name of the background color.
; Otherwise, the keyword is assumed to be a color index into the current color table.
; charsize: in, optional, type=float
; The character size for axes annotations. Uses cgDefCharSize to select default
; character size, unless !P.Charsize is set, in which case !P.Charsize is always used.
; color: in, optional, type=string/integer, default='BLACK'
; If this keyword is a string, the name of the data color.
; Color names are those used with cgColor. Otherwise, the keyword is assumed
; to be a color index into the current color table.
; font: in, optional, type=integer, default=!P.Font
; The type of font desired for axis annotation.
; labelcharsize: in, optional, type=float
; The character size of the labels. The default is to use `Charsize`.
; labelcolor: in, optional, type=string
; The name of the color the labels should be drawn in. The default is the
; `AxisColor`.
; nogrid: in, optional, type=boolean, default=0
; Set this keyword to eliminate the background grid from the plot.
; noerase: in, optional, type=boolean, default=0
; Set this keyword to draw the plot without erasing the display first.
; output: in, optional, type=string, default=""
; Set this keyword to the name of an output file. The type of file is determined
; from the file's extension, as listed below. Normally, the file name is given in
; all lowercase letters::
; 'ps' - PostScript file
; 'eps' - Encapsulated PostScript file
; 'pdf' - PDF file
; 'bmp' - BMP raster file
; 'gif' - GIF raster file
; 'jpg' - JPEG raster file
; 'png' - PNG raster file
; 'tif' - TIFF raster file
; All raster file output is created through PostScript intermediate files (the
; PostScript files will be deleted), so ImageMagick and Ghostview MUST be installed
; to produce anything other than PostScript output. (See cgPS2PDF and cgPS_Close for
; details.) And also note that you should NOT use this keyword when doing multiple
; plots. The keyword is to be used as a convenient way to get PostScript or raster
; output for a single graphics command. Output parameters can be set with `cgWindow_SetDefs`.
; overplot: in, optional, type=boolean, default=0
; Set this keyword if you wish to overplot data on an already exisiting set of
; cgDotPlot axes. Note that labels will have to be passed, but they will not be
; drawn again in the overplotting.
; position: in, optional, type=vector
; The usual four-element position vector for the Plot comamnd. Only monitored and
; possibly set if the `Aspect` keyword is used.
; psym: in, optional, type=integer
; Any normal IDL PSYM values, plus any value supported by the Coyote Library
; routine cgSYMCAT. An integer between 0 and 46. This may also be set to the
; "name" of a symbol, such as returned from Print, cgSymCat(/Names).
; plotfillcolor: in, optional, type=string, default='BLK1'
; The name of the color that fills the area inside the axes on the plot.
; symsize: in, optional, type=float, default=1.0
; The symbol size.
; title: in, optional, type=string
; The title of the plot.
; window: in, optional, type=boolean, default=0
; Set this keyword to replace all the commands in a current cgWindow or to
; create a new cgWindow for displaying this command.
; xcharsize: in, optional, type=float
; The character size of the annotations on the X axis of the plot.
; xgridstyle: in, optional, type=integer, default=1
; The X line style of the grid lines used to draw the grid on the axis. By default, dots.
; xrange: in, optional
; A two-element array giving the X range of the plot.
; xstyle: in, optional
; A two-element array giving the X style of the plot. Normally, this is
; set to 1 to give exact axis ranges. Otherwise, not used.
; xtitle: in, optional, type=string
; The X title of the plot.
; ygridstyle: in, optional, type=integer, default=1
; The Y line style of the grid lines used to draw the grid on the axis. By default, dots.
;
; :Examples:
; There are several examples in a main-level program at the end of this program file.
;
; :Author:
; FANNING SOFTWARE CONSULTING::
; David W. Fanning
; 1645 Sheely Drive
; Fort Collins, CO 80526 USA
; Phone: 970-221-0438
; E-mail: david@idlcoyote.com
; Coyote's Guide to IDL Programming: http://www.idlcoyote.com
;
; :History:
; Change History::
; Written, 12 November 2012, by David W. Fanning and donated to the IDL community
; by Marta Yebra of CSIRO, Australia.
;
; :Copyright:
; Copyright (c) 2012, Fanning Software Consulting, Inc.
;-
PRO cgDotPlot, labels, values, $
ADDCMD=addcmd, $
AXISCOLOR=saxiscolor, $
BACKGROUND=sbackground, $
CHARSIZE=charsize, $
COLOR=scolor, $
FONT=font, $
LABELCHARSIZE=labelcharsize, $
LABELCOLOR=slabelcolor, $
NOGRID=nogrid, $
NOERASE=noerase, $
OUTPUT=output, $
OVERPLOT=overplot, $
POSITION=position, $
PSYM=psymIn, $
PLOTFILLCOLOR=splotFillColor, $
SYMSIZE=symsize, $
TITLE=title, $
XCHARSIZE=xcharsize, $
XGRIDSTYLE=xgridstyle, $
XRANGE=xrange, $
XSTYLE=xstyle, $
XTITLE=xtitle, $
YGRIDSTYLE=ygridstyle, $
WINDOW=window
Catch, theError
IF theError NE 0 THEN BEGIN
Catch, /CANCEL
void = cgErrorMsg()
IF N_Elements(currentState) NE 0 THEN cgSetColorState, currentState
IF (N_Elements(output) NE 0) THEN cgPS_Close, /NOFIX
RETURN
ENDIF
; Set up PostScript device for working with colors.
IF !D.Name EQ 'PS' THEN Device, COLOR=1, BITS_PER_PIXEL=8
; Check parameters.
IF N_Params() EQ 0 THEN BEGIN
Print, 'USE SYNTAX: cgDotPlot, labels, values'
RETURN
ENDIF
; Need labels and values.
IF Size(labels, /TNAME) NE 'STRING' THEN Message, 'The LABELS parameter must be a string array.'
IF N_Elements(values) NE N_Elements(labels) THEN Message, 'The number of labels must match the number of values provided.'
; Check to see if psymIn is a string. If so, covert it here.
IF N_Elements(psymIn) NE 0 THEN BEGIN
IF Size(psymIn, /TNAME) EQ 'STRING' THEN BEGIN
names = cgSymCat(/Names)
index = Where(STRUPCASE(StrCompress(names, /REMOVE_ALL)) EQ STRUPCASE(StrCompress(psymIN, /REMOVE_ALL)), count)
IF count GT 0 THEN psym = index[0] ELSE Message, 'Cannot resolve the PSYM value: ' + psymIn
ENDIF ELSE psym = psymIn
ENDIF
; Pay attention to !P.NoErase in setting the NOERASE kewyord.
IF !P.NoErase NE 0 THEN noerase = !P.NoErase ELSE noerase = Keyword_Set(noerase)
; Do they want this plot in a resizeable graphics window?
IF Keyword_Set(addcmd) THEN window = 1
IF Keyword_Set(window) AND ((!D.Flags AND 256) NE 0) THEN BEGIN
; Special treatment for overplotting or adding a command.
IF Keyword_Set(overplot) OR Keyword_Set(addcmd) THEN BEGIN
cgWindow, 'cgDotPlot', labels, values, $
AXISCOLOR=saxiscolor, $
BACKGROUND=sbackground, $
CHARSIZE=charsize, $
COLOR=scolor, $
FONT=font, $
LABELCHARSIZE=labelcharsize, $
LABELCOLOR=slabelcolor, $
NOGRID=nogrid, $
NOERASE=noerase, $
OUTPUT=output, $
OVERPLOT=overplot, $
POSITION=position, $
PSYM=psymIn, $
PLOTFILLCOLOR=splotFillColor, $
SYMSIZE=symsize, $
TITLE=title, $
XCHARSIZE=xcharsize, $
XGRIDSTYLE=xgridstyle, $
XRANGE=xrange, $
XSTYLE=xstyle, $
XTITLE=xtitle, $
YGRIDSTYLE=ygridstyle, $
ADDCMD=1
RETURN
ENDIF
; Open a new window or replace the current commands, as required.
currentWindow = cgQuery(/CURRENT, COUNT=wincnt)
IF wincnt EQ 0 THEN replaceCmd = 0 ELSE replaceCmd=1
cgWindow, 'cgDotPlot', labels, values, $
AXISCOLOR=saxiscolor, $
BACKGROUND=sbackground, $
CHARSIZE=charsize, $
COLOR=scolor, $
FONT=font, $
LABELCHARSIZE=labelcharsize, $
LABELCOLOR=slabelcolor, $
NOGRID=nogrid, $
NOERASE=noerase, $
OUTPUT=output, $
OVERPLOT=overplot, $
POSITION=position, $
PSYM=psymIn, $
PLOTFILLCOLOR=splotFillColor, $
SYMSIZE=symsize, $
TITLE=title, $
XCHARSIZE=xcharsize, $
XGRIDSTYLE=xgridstyle, $
XRANGE=xrange, $
XSTYLE=xstyle, $
XTITLE=xtitle, $
YGRIDSTYLE=ygridstyle, $
REPLACECMD=replaceCmd
RETURN
ENDIF
; Are we doing some kind of output?
IF (N_Elements(output) NE 0) && (output NE "") THEN BEGIN
; If the output string has a dot character, then this must be a
; filename, and we will determine the type of file from the filename extension.
IF StrPos(output, '.') NE -1 THEN BEGIN
root_name = cgRootName(output, DIRECTORY=theDir, EXTENSION=ext)
IF theDir EQ "" THEN CD, CURRENT=theDir
outfilename = output
outputSelection = StrUpCase(ext)
ENDIF
; Need to have a filename and extention at this point.
IF N_Elements(outfilename) EQ 0 THEN Message, 'Output filename must have an file type extension.'
IF N_Elements(outputSelection) EQ 0 THEN Message, 'An output filename extension is required.'
typeOfOutput = ['PS','EPS','PDF','BMP','GIF','JPEG','JPG','PNG','TIFF', 'TIF']
void = Where(typeOfOutput EQ outputSelection, count)
IF count EQ 0 THEN Message, 'Cannot find ' + outputSelection + ' in allowed output types.'
; Set things up.
CASE outputSelection OF
'PS': BEGIN
ext = '.ps'
delete_ps = 0
END
'EPS': BEGIN
ext = '.eps'
encapsulated = 1
delete_ps = 0
END
'PDF': BEGIN
ext = '.pdf'
pdf_flag = 1
delete_ps = 1
END
'BMP': BEGIN
ext = '.bmp'
bmp_flag = 1
delete_ps = 1
END
'GIF': BEGIN
ext = '.gif'
gif_flag = 1
delete_ps = 1
END
'JPEG': BEGIN
ext = '.jpg'
jpeg_flag = 1
delete_ps = 1
END
'JPG': BEGIN
ext = '.jpg'
jpeg_flag = 1
delete_ps = 1
END
'PNG': BEGIN
ext = '.png'
png_flag = 1
delete_ps = 1
END
'TIFF': BEGIN
ext = '.tif'
tiff_flag = 1
delete_ps = 1
END
'TIF': BEGIN
ext = '.tif'
tiff_flag = 1
delete_ps = 1
END
ENDCASE
; We need to know the root name of the file, because we have to make a PostScript
; file of the same name. At least we do if the type is not PS or EPS.
IF (outputSelection NE 'PS') && (outputSelection NE 'EPS') THEN BEGIN
root_name = cgRootName(outfilename, DIRECTORY=theDir)
IF theDir EQ "" THEN CD, CURRENT=theDir
ps_filename = Filepath(ROOT_DIR=theDir, root_name + '.ps')
ENDIF ELSE ps_filename = outfilename
; Get the output default values.
cgWindow_GetDefs, $
PS_Charsize = ps_charsize, $ ; The PostScript character size.
PS_FONT = ps_font, $ ; Select the font for PostScript output.
PS_Decomposed = ps_decomposed, $ ; Sets the PostScript color mode.
PS_Delete = ps_delete, $ ; Delete PS file when making IM raster.
PS_Metric = ps_metric, $ ; Select metric measurements in PostScript output.
PS_Scale_factor = ps_scale_factor, $ ; Select the scale factor for PostScript output.
PS_TT_Font = ps_tt_font ; Select the true-type font to use for PostScript output.
; Set up the PostScript device.
cgPS_Open, $
CHARSIZE=ps_charsize, $
DECOMPOSED=ps_decomposed, $
FILENAME=ps_filename, $
FONT=ps_font , $
ENCAPSULATED=encapsulated, $
METRIC=ps_metric, $
SCALE_FACTOR=ps_scale_factor, $
TT_FONT=ps_tt_font, $
QUIET=1
ENDIF
; Get the current color table vectors.
TVLCT, rr, gg, bb, /GET
; Going to do this in decomposed color, if possible.
cgSetColorState, 1, CURRENTSTATE=currentState
; Check keywords.
IF N_Elements(title) EQ 0 THEN title = ""
IF N_Elements(xtitle) EQ 0 THEN xtitle = ""
title = cgCheckForSymbols(title)
xtitle = cgCheckForSymbols(xtitle)
FOR j=0,N_Elements(labels)-1 DO labels[j] = cgCheckForSymbols(labels[j])
background = cgDefaultColor(sbackground, DEFAULT='white', /BACKGROUND)
axisColor = cgDefaultColor(saxisColor, DEFAULT='black')
color = cgDefaultColor(sColor, DEFAULT='black')
plotfillcolor = cgDefaultColor(splotfillcolor, DEFAULT='blk1')
labelcolor = cgDefaultColor(slabelcolor, DEFAULT=axisColor)
IF N_Elements(font) EQ 0 THEN font = !P.Font
IF N_Elements(charsize) EQ 0 THEN charsize = cgDefCharSize(FONT=font)
IF N_Elements(labelcharsize) EQ 0 THEN labelcharsize = charsize
IF N_Elements(symsize) EQ 0 THEN symsize = 1.0
IF N_Elements(psym) EQ 0 THEN psym = 9 ; Open circle
IF N_Elements(xgridstyle) EQ 0 THEN xgridstyle = 1 ; Dots
IF N_Elements(ygridstyle) EQ 0 THEN ygridstyle = 1 ; Dots
; Load the drawing colors. If needed create a window first, so the drawing
; colors are correct for the window you want to draw into.
IF ((!D.Flags AND 256) NE 0) && (!D.Window LT 0) THEN cgDisplay
IF Size(axiscolor, /TNAME) EQ 'STRING' THEN axiscolor = cgColor(axiscolor)
IF Size(color, /TNAME) EQ 'STRING' THEN color = cgColor(color)
IF Size(background, /TNAME) EQ 'STRING' THEN background = cgColor(background)
IF Size(plotfillcolor, /TNAME) EQ 'STRING' THEN plotfillcolor = cgColor(plotfillcolor)
IF Size(symcolor, /TNAME) EQ 'STRING' THEN symcolor = cgColor(symcolor)
IF N_Elements(xstyle) EQ 0 THEN xstyle = 0
; Calculate the maximum length of the labels in normalized coordinates.
maxStrLen = Max(StrLen(labels))
maxLength = maxStrLen * Float(!D.X_CH_SIZE) / !D.X_SIZE
; Calculate a default plot position.
IF N_Elements(position) EQ 0 && (Total(!P.Multi) LE 0) && (Total(!P.Position) EQ 0.0) THEN BEGIN
position = [0.125+maxLength, 0.125, 0.9, 0.9]
ENDIF
; Draw the plot axes. The first plot should not be seen, and it just to
; establish plot location.
numLabels = N_Elements(labels)
IF ~Keyword_Set(overplot) THEN BEGIN
Plot, values, Indgen(numLabels)+1, /NoData, COLOR=axiscolor, $
YRANGE=[0,numlabels+1], YSTYLE=9+4, YMINOR=1, YTICKS=numLabels+1, $
POSITION=position, BACKGROUND=background, YTICKLEN=-0.025, XTICKLEN=-0.025, $
XSTYLE=xstyle+8+4, XRANGE=xrange, NOERASE=noerase
ENDIF
; Fill the inside of the plot with a color.
p = [!X.Window[0], !Y.Window[0], !X.Window[1], !Y.Window[1]]
IF ~Keyword_Set(overplot) THEN BEGIN
PolyFill, [p[0],p[0],p[2],p[2],p[0]], [p[1],p[3],p[3],p[1],p[1]], /Normal, $
Color=plotfillcolor
ENDIF
; Add grid lines to the plot, if needed.
IF ~Keyword_Set(nogrid) && ~Keyword_Set(overplot) THEN BEGIN
Plot, values, Indgen(numLabels)+1, /NoData, COLOR=cgColor('gray'), $
YRANGE=[0,numlabels+1], YSTYLE=9, YMINOR=1, YTICKS=numLabels+1, $
POSITION=p, YTICKLEN=1, XTICKLEN=1, XGRIDSTYLE=xgridstyle, YGRIDSTYLE=ygridstyle, $
XSTYLE=xstyle+8, NoErase=1, XTICKFORMAT='(A1)', YTICKFORMAT='(A1)', XMINOR=1, $
XRANGE=xrange
ENDIF
; Draw the actual plot with normal annotations.
IF Keyword_Set(overplot) THEN BEGIN
OPlot, values, Indgen(numLabels)+1, PSYM=cgSymCat(psym), COLOR=color, SYMSIZE=symsize
ENDIF ELSE BEGIN
Plot, values, Indgen(numLabels)+1, /NoData, COLOR=axiscolor, $
YRANGE=[0,numlabels+1], YSTYLE=9, YMINOR=1, YTICKS=numLabels+1, $
POSITION=p, YTICKLEN=-0.025, XTICKLEN=-0.025, $
XSTYLE=xstyle+8, NoErase=1, YTICKFORMAT='(A1)', XRANGE=xrange, TITLE=title, XTITLE=xtitle
Axis, YAXIS=1, COLOR=axiscolor, YMINOR=1, YTICKFORMAT='(A1)', YTICKLEN=0.0001, $
YRANGE=[0,numlabels+1], YSTYLE=1
Axis, XAXIS=1, COLOR=axiscolor, XRANGE=xrange, XTICKFORMAT='(A1)', XSTYLE=xstyle
OPlot, values, Indgen(numLabels)+1, PSYM=cgSymCat(psym), COLOR=color, SYMSIZE=symsize
ENDELSE
; Add the plot labels.
IF ~Keyword_Set(overplot) THEN BEGIN
FOR j=0,N_Elements(labels)-1 DO BEGIN
xloc = !X.Window[0] - 0.025
yloc = !Y.Window[0] + ((j+1) * ((!Y.Window[1]-!Y.Window[0])/(N_Elements(labels)+1)))
skosh = 0.01
XYOUTS, xloc, yloc-skosh, labels[j], /Normal, $
FONT=font, Charsize=labelCharsize, Alignment=1.0, COLOR=cgColor(labelColor)
ENDFOR
ENDIF
; Are we producing output? If so, we need to clean up here.
IF (N_Elements(output) NE 0) && (output NE "") THEN BEGIN
; Get the output default values.
cgWindow_GetDefs, $
IM_Density = im_density, $ ; Sets the density parameter on ImageMagick convert command.
IM_Options = im_options, $ ; Sets extra ImageMagick options on the ImageMagick convert command.
IM_Resize = im_resize, $ ; Sets the resize parameter on ImageMagick convert command.
IM_Transparent = im_transparent, $ ; Sets the "alpha" keyword on ImageMagick convert command.
IM_Width = im_width, $ ; Sets the width of raster file output created with ImageMagick.
PDF_Unix_Convert_Cmd = pdf_unix_convert_cmd, $ ; Command to convert PS to PDF.
PDF_Path = pdf_path ; The path to the Ghostscript conversion command.
; Close the PostScript file and create whatever output is needed.
cgPS_Close, DELETE_PS=delete_ps, $
ALLOW_TRANSPARENT=im_transparent, $
BMP=bmp_flag, $
DENSITY=im_density, $
GIF=gif_flag, $
GS_PATH=pdf_path, $
IM_OPTIONS=im_options, $
JPEG=jpeg_flag, $
PDF=pdf_flag, $
PNG=png_flag, $
RESIZE=im_resize, $
TIFF=tiff_flag, $
UNIX_CONVERT_CMD=pdf_unix_convert_cmd, $
WIDTH=im_width
basename = File_Basename(outfilename)
dirname = File_Dirname(outfilename)
IF dirname EQ "." THEN CD, CURRENT=dirname
Print, 'Output File: ' + Filepath(ROOT_DIR=dirname, basename)
ENDIF
; Restore the decomposed color state if you can.
cgSetColorState, currentState
; Restore the color table. Can't do this for the Z-buffer or
; the snap shot will be incorrect.
IF (!D.Name NE 'Z') THEN TVLCT, rr, gg, bb
END
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