/usr/share/gnudatalanguage/coyote/cgshade_surf.pro is in gdl-coyote 2016.11.13-2.
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;
; NAME:
; cgShade_Surf
;
; PURPOSE:
; The purpose of cgShade_Surf is simply to make it easier for people to remember
; how to create a shaded surface with cgSurf. See the documentation for cgSurf to
; learn more about surface rendering. All this program does is make sure the SHADED
; keyword to cgSurf is set.
;
;******************************************************************************************;
; ;
; Copyright (c) 2011, 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 cgShade_Surf is simply to make it easier for people to remember
; how to create a shaded surface with cgSurf. See the documentation for cgSurf to
; learn more about surface rendering. All this program does is make sure the SHADED
; keyword to cgSurf is set.
;
; .. image:: cgshade_surf.png
;
; :Categories:
; Graphics
;
; :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
;
; :Params:
; data: in, required, type=any
; A two-dimensional array of data to be displayed.
; x: in, optional, type=any
; A vector or two-dimensional array specifying the X coordinates of the
; surface grid.
; y: in, optional, type=any
; A vector or two-dimensional array specifying the Y coordinates of the
; surface grid.
;
; :Keywords:
; addcmd: in, optional, type=boolean, default=0
; Set this keyword to add the command to an cgWindow. Setting this keyword
; automatically sets the WINDOW keyword, but the command does not erase the
; graphics window as it would normally.
; axiscolor: in, optional, type=string/integer, default='black'
; If this keyword is a string, the name of the axis color. By default, 'black'.
; Otherwise, the keyword is assumed to be a color index into the current color table.
; axescolor: in, hidden, type=string/integer
; Provisions for bad spellers.
; background: in, optional, type=string/integer, default='white'
; If this keyword is a string, the name of the background color. By default, 'white'.
; Otherwise, the keyword is assumed to be a color index into the current color table.
; bottom: in, optional, type=string/integer, default='black'
; If this keyword is a string, the name of the bottom color. By default, same as COLOR.
; Otherwise, the keyword is assumed to be a color index into the current color table.
; charsize: in, optional, type=float, default=cgDefCharSize*1.25
; The character size for axes annotations. Uses cgDefCharSize()*1.25 to select default
; character size, unless !P.Charsize is set, in which case !P.Charsize*1.25 is always used.
; color: in, optional, type=string/integer, default='blu6'
; If this keyword is a string, the name of the data color. By default, "BLU6".
; Otherwise, the keyword is assumed to be a color index into the current color table.
; elevation_shading: in, optional, type=boolean, default=0
; Set this keyword to put elevation shading into effect for the surface.
; font: in, optional, type=integer, default=-1
; The type of font desired. If undefined, and the current graphics device is PostScript,
; the FONT keyword will be set to 1, indicating true-type fonts. The FONT keyword must
; be set to -1 (Hershey fonts) or 1 (true-type fonts) for surface annotations to be
; rotated correctly in PostScript output.
; layout: in, optional, type=intarr(3)
; This keyword specifies a grid with a graphics window and determines where the
; graphic should appear. The syntax of LAYOUT is three numbers: [ncolumns, nrows, location].
; The grid is determined by the number of columns (ncolumns) by the number of
; rows (nrows). The location of the graphic is determined by the third number. The
; grid numbering starts in the upper left (1) and goes sequentually by column and then
; by row.
; noerase: in, optional, type=boolean, default=0
; Set this keyword to prevent the window from erasing the contents before displaying
; the surface plot.
; outfilename: in, optional, type=string
; If the `Output` keyword is set, the user will be asked to supply an output
; filename, unless this keyword is set to a non-null string. In that case, the
; value of this keyword will be used as the filename and there will be no dialog
; presented to the user.
; output: in, optional, type=string, default=""
; Set this keyword to the type of output desired. Possible values are these::
;
; 'PS' - PostScript file
; 'EPS' - Encapsulated PostScript file
; 'PDF' - PDF file
; 'BMP' - BMP raster file
; 'GIF' - GIF raster file
; 'JPEG' - JPEG raster file
; 'PNG' - PNG raster file
; 'TIFF' - TIFF raster file
;
; Or, you can simply set this keyword to the name of the output file, and the type of
; file desired will be determined by the file extension. If you use this option, the
; user will not be prompted to supply the name of the output 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.
; palette: in, optional, type=byte
; Set this keyword to a 3 x N or N x 3 byte array containing the RGB color vectors
; to be loaded before the surface is displayed. Such vectors can be obtained, for
; example, from cgLoadCT with the RGB_TABLE keyword:
;
; cgLoadCT, 33, RGB_TABLE=palette
; cgSurf, cgDemoData(2), PALETTE=palette, /Elevation
;
; rotx: in, optional, type=float, default=30
; The rotation about the X axis.
; rotz: in, optional, type=float, default=30
; The rotation about the Z axis.
; shaded: in, optional, type=boolean, default=1
; Set this keyword if you wish to display a shaded surface. To display shaded surfaces
; in a device-independent way, the shading values are confined to indices 0 to 253 with
; SET_SHADING, and the background color is placed in color index 254. The color table vectors
; are reduced to 254 elements when this happens. This all happens behind the stage,
; and the original color table is restore upon exit. Because I can't tell how many values
; SET_SHADING is using on entering the program, I just set it back to its default 256 values
; on exiting the program.
; shades: in, optional, type=byte
; Set this keyword to a byte scaled 2D array of the same size as data to shade the surface
; with these color indices.
; skirt: in, optional, type=any
; Set this keyword to a Z value where a skirt will be drawn for the surface.
; title: in, optional, type=string
; The title of the plot. It will be written "flat to the screen", rather than rotated.
; traditional: in, optional, type=boolean, default=0
; If this keyword is set, the traditional color scheme of a black background for
; graphics windows on the display is used and PostScript files always use a white background.
; tsize: in, optional, type=float
; The character size for the title. Normally, the title character size is 1.1 times
; the character size of the surface annotation.
; tspace: in, optional, type=float
; The title Y spacing. This should be a number, between 0 and 1 that is the fraction
; of the distance between !Y.Window[1] and !Y.Window[0] to locate the title above
; !Y.Window[1]. When Total(!P.MULTI) EQ 0, the default is 0.005, and it is 0.0025 otherwise.
; window: in, optional, type=boolean, default=0
; Set this keyword if you want to display the plot in a resizable graphics window.
; xstyle: in, hidden
; The normal XSTYLE keyword.
; xtitle: in, optional, type=string
; The X title of the plot.
; ystyle: in, hidden
; The normal YSTYLE keyword.
; ytitle: in, optional, type=string
; The Y title of the plot.
; zstyle: in, hidden
; The normal ZSTYLE keyword.
; ztitle: in, optional, type=string
; The Z title of the plot.
; _ref_extra: in, optional, type=any
; Any keyword appropriate for the IDL Surface command is allowed in the program.
;
; :History:
; Change History::
; Written, 1 February 2011. DWF.
;
; :Copyright:
; Copyright (c) 2011, Fanning Software Consulting, Inc.
;-
PRO cgShade_Surf, data, x, y, $
ADDCMD=addcmd, $
AXISCOLOR=saxiscolor, $
AXESCOLOR=saxescolor, $
BACKGROUND=sbackground, $
BOTTOM=sbottom, $
CHARSIZE=charsize, $
COLOR=scolor, $
ELEVATION_SHADING=elevation_shading, $
FONT=font, $
LAYOUT=layout, $
NOERASE=noerase, $
OUTFILENAME=outfilename, $
OUTPUT=output, $
PALETTE=palette, $
ROTX=rotx, $
ROTZ=rotz, $
SHADED=shaded, $
SHADES=shades, $
SKIRT=skirt, $
TITLE=title, $
TRADITIONAL=traditional, $
TSIZE=tsize, $
TSPACE=tspace, $
WINDOW=window, $
XSTYLE=xstyle, $
XTITLE=xtitle, $
YSTYLE=ystyle, $
YTITLE=ytitle, $
ZSTYLE=zstyle, $
ZTITLE=ztitle, $
_Ref_Extra=extra
cgSurf, data, x, y, $
ADDCMD=addcmd, $
AXISCOLOR=saxiscolor, $
AXESCOLOR=saxescolor, $
BACKGROUND=sbackground, $
BOTTOM=sbottom, $
CHARSIZE=charsize, $
COLOR=scolor, $
ELEVATION_SHADING=elevation_shading, $
FONT=font, $
LAYOUT=layout, $
NOERASE=noerase, $
OUTFILENAME=outfilename, $
OUTPUT=output, $
PALETTE=palette, $
ROTX=rotx, $
ROTZ=rotz, $
SHADED=1, $
SHADES=shades, $
SKIRT=skirt, $
TITLE=title, $
TRADITIONAL=traditional, $
TSIZE=tsize, $
TSPACE=tspace, $
WINDOW=window, $
XSTYLE=xstyle, $
XTITLE=xtitle, $
YSTYLE=ystyle, $
YTITLE=ytitle, $
ZSTYLE=zstyle, $
ZTITLE=ztitle, $
_Ref_Extra=extra
END
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