/usr/share/gnudatalanguage/coyote/cgaxis.pro is in gdl-coyote 2016.11.13-2.
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;
; NAME:
; cgAxis
;
; PURPOSE:
; Provides a device-independent and color-model-independent way to draw an axis into
; a graphics window. It is a wrapper to the AXIS command.
;
;******************************************************************************************;
; ;
; 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. ;
;******************************************************************************************;
;
;+
; Provides a device-independent and color-model-independent way to draw an axis into
; a graphics window. It is a wrapper to the AXIS command.
;
; The program requires the `Coyote Library <http://www.idlcoyote.com/documents/programs.php>`
; to be installed on your machine.
;
; :Categories:
; Graphics
;
; :Params:
; xloc: in, optional, type=depends
; The X location of the axis.
; yloc: in, optional, type=depends
; The Y location of the axis.
; zloc: in, optional, type=depends
; The Z location of the axis.
;
; :Keywords:
; charsize: in, optional, type=float, default=cgDefCharSize()
; 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/long
; The color of the text. Color names are those used with cgColor. By default,
; "black", unless the upper-right hand pixel in the display is black, then "white".
; data: in, optional, type=boolean
; Set this keyword to indicate xloc and yloc are in data coordinates. Data coordinates
; are the default, unless DEVICE or NORMAL is set.
; device: in, optional, type=boolean
; Set this keyword to indicate xloc and yloc are in device coordinates.
; font: in, optional, type=integer, default=!P.Font
; The type of font desired. By default, !P.Font.
; normal: in, optional, type=boolean
; Set this keyword to indicate xloc and yloc are in normalized coordinates.
; save: in, optional, type=boolean
; Set this keyword to save the scaling parameters set by the axis for subsequent use.
; t3d: in, optional, type=boolean, default=0
; Set this keyword to rotate the axis is the 3D data space set up with !P.T.
; title: in, optional, type=string, default=""
; The title or annotation that appears on the axis.
; window: in, optional, type=boolean
; Set this keyword to add the command to the in the current cgWindow application.
; xaxis: in, optional, type=integer, default=0
; If set to 0, the axis is drawn under the plot with the tick marks pointing up; if set
; to 1, the axis is drawn on top of the plot with the tick marks pointing down.
; xlog: in, optional, type=boolean, default=0
; Set this keyword to specify a logarithmic axis type.
; xtitle: in, optional, type=string
; An alternative way to set the `Title` keyword for X axes. Use `Title` instead.
; yaxis: in, optional, type=integer, default=0
; If set to 0, the axis is drawn on the left of the plot with the tick marks pointing
; to the right. If set to 1, the axis is drawn on the right of the plot with the tick
; marks pointing to the left.
; ylog: in, optional, type=boolean, default=0
; Set this keyword to specify a logarithmic axis type.
; ynozero: in, optional, type=boolean, default=0
; Set this keyword to prevent the Y axis from starting at 0.
; ytitle: in, optional, type=string
; An alternative way to set the `Title` keyword for Y axes. Use `Title` instead.
; zaxis: in, optional, type=integer, default=0
; Set to 0-3 to position the Z axis in various locatons. See the AXIS documentation.
; zlog: in, optional, type=boolean, default=0
; Set this keyword to specify a logarithmic axis type.
; ztitle: in, optional, type=string
; An alternative way to set the `Title` keyword for Z axes. Use `Title` instead.
; _ref_extra: in, optional
; Any keywords appropriate for the AXIS command.
;
;
; :Examples:
; Used like the IDL AXIS command::
; IDL> cgPlot, cgDemoData(1), YStyle=8, Position=[0.1, 0.1, 0.85, 0.9], /Window
; IDL> cgAxis, /YAxis, Color='red', YRange=[-500, 500], /Save, /Window
;
; :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, 25 Janauray 2011. DWF.
; Modified error handler to restore the entry decomposition state if there is an error. 17 March 2011. DWF
; Modifed the way I am handling brain dead AXIS command. 30 May 2011. DWF.
; Modified to use cgDefaultColor for default color selection. 24 Dec 2011. DWF.
; Added T3D keyword. 1 March 2012. DWF.
; Added the ability to use escape characters in plot titles to specify cgSymbol symbols. 27 July 2012. DWF.
;
; :Copyright:
; Copyright (c) 2011, Fanning Software Consulting, Inc.
;-
PRO cgAxis, xloc, yloc, zloc, $
CHARSIZE=charsize, $
COLOR=scolor, $
DATA=data, $
DEVICE=device, $
FONT=font, $
NORMAL=normal, $
SAVE=save, $
T3D=t3d, $
TITLE=title, $
XAXIS=xaxis, $
XLOG=xlog, $
XTITLE=xtitle, $
YAXIS=yaxis, $
YLOG=ylog, $
YTITLE=ytitle, $
YNOZERO=ynozero, $
ZAXIS=zaxis, $
ZLOG=zlog, $
ZTITLE=ztitle, $
WINDOW=window, $
_REF_EXTRA=extra
Compile_Opt idl2
; Catch the error.
Catch, theError
IF theError NE 0 THEN BEGIN
Catch, /CANCEL
void = cgErrorMsg()
IF N_Elements(currentState) NE 0 THEN cgSetColorState, currentState
RETURN
ENDIF
; If doing this in 3D space, FONT should be set to 1 in PostScript
; if you are doing this in hardware fonts. Otherwise, the font won't
; rotate properly.
IF Keyword_Set(t3d) && (!D.Name EQ 'PS') THEN BEGIN
IF (N_Elements(font) EQ 0) && (!P.Font EQ 0) THEN font = 1.0
ENDIF
; Should this be added to a resizeable graphics window?
IF Keyword_Set(window) AND ((!D.Flags AND 256) NE 0) THEN BEGIN
void = cgQuery(COUNT=wincnt)
IF wincnt EQ 0 THEN cgWindow
cgWindow, 'cgAxis', xloc, yloc, zloc, $
CHARSIZE=charsize, $
COLOR=scolor, $
DATA=data, $
DEVICE=device, $
FONT=font, $
NORMAL=normal, $
SAVE=save, $
T3D=t3d, $
TITLE=title, $
XAXIS=xaxis, $
XLOG=xlog, $
XTITLE=xtitle, $
YAXIS=yaxis, $
YLOG=ylog, $
YTITLE=ytitle, $
YNOZERO=ynozero, $
ZAXIS=zaxis, $
ZLOG=zlog, $
ZTITLE=ztitle, $
ADDCMD=1, $
_EXTRA=extra
RETURN
ENDIF
; Did the user specify a title with the TITLE keyword?
IF (N_ElementS(title) NE 0) THEN title = cgCheckForSymbols(title)
IF (N_Elements(xtitle) NE 0) THEN xtitle = cgCheckForSymbols(xtitle)
IF (N_Elements(ytitle) NE 0) THEN ytitle = cgCheckForSymbols(ytitle)
IF (N_Elements(ztitle) NE 0) THEN ztitle = cgCheckForSymbols(ztitle)
IF (N_Elements(xtitle) EQ 0) && (N_Elements(title) NE 0) THEN xtitle = title
IF (N_Elements(ytitle) EQ 0) && (N_Elements(title) NE 0) THEN ytitle = title
IF (N_Elements(ztitle) EQ 0) && (N_Elements(title) NE 0) THEN ztitle = title
; Do you need to reverse the Y title?
IF (N_Elements(ytitle) NE 0) && Keyword_Set(yreverse) THEN BEGIN
reverseTitle = ytitle
ytitle = ""
ENDIF
; Set up PostScript device for working with colors.
IF !D.Name EQ 'PS' THEN Device, COLOR=1, BITS_PER_PIXEL=8
; Check keywords.
IF N_Elements(font) EQ 0 THEN font = !P.FONT
IF N_Elements(charsize) EQ 0 THEN charsize = cgDefCharSize(FONT=font)
; Draw the axis. Do this in Decomposed color, if possible.
cgSetColorState, 1, CURRENTSTATE=currentState
; If current state is "indexed color" and colors are represented as long integers then "fix" them.
IF (currentState EQ 0) THEN BEGIN
IF Size(scolor, /TNAME) EQ 'LONG' THEN scolor = Fix(scolor)
ENDIF
; Get the input color table.
TVLCT, rr, gg, bb, /Get
; Choose a color.
color = cgDefaultColor(scolor)
; Draw the axis.
IF Size(color, /TNAME) EQ 'STRING' THEN thisColor = cgColor(color) ELSE thisColor = color
; Axis command appears to be brain dead. Doesn't act like any other command
; in IDL. Have to do this according to number of positional parameters. Sigh...
CASE N_Params() OF
0: Axis, $
CHARSIZE=charsize, $
COLOR=thisColor, $
DATA=data, $
DEVICE=device, $
FONT=font, $
NORMAL=normal, $
SAVE=save, $
T3D=t3d, $
XAXIS=xaxis, $
XLOG=xlog, $
XTITLE=xtitle, $
YAXIS=yaxis, $
YLOG=ylog, $
YTITLE=ytitle, $
YNOZERO=ynozero, $
ZAXIS=zaxis, $
ZLOG=zlog, $
ZTITLE=ztitle, $
_STRICT_EXTRA=extra
1: Axis, xloc, $
CHARSIZE=charsize, $
COLOR=thisColor, $
DATA=data, $
DEVICE=device, $
FONT=font, $
NORMAL=normal, $
SAVE=save, $
T3D=t3d, $
XAXIS=xaxis, $
XLOG=xlog, $
XTITLE=xtitle, $
YAXIS=yaxis, $
YLOG=ylog, $
YTITLE=ytitle, $
YNOZERO=ynozero, $
ZAXIS=zaxis, $
ZLOG=zlog, $
ZTITLE=ztitle, $
_STRICT_EXTRA=extra
2: Axis, xloc, yloc, $
CHARSIZE=charsize, $
COLOR=thisColor, $
DATA=data, $
DEVICE=device, $
FONT=font, $
NORMAL=normal, $
SAVE=save, $
T3D=t3d, $
XAXIS=xaxis, $
XLOG=xlog, $
XTITLE=xtitle, $
YAXIS=yaxis, $
YLOG=ylog, $
YTITLE=ytitle, $
YNOZERO=ynozero, $
ZAXIS=zaxis, $
ZLOG=zlog, $
ZTITLE=ztitle, $
_STRICT_EXTRA=extra
3: Axis, xloc, yloc, zloc, $
CHARSIZE=charsize, $
COLOR=thisColor, $
DATA=data, $
DEVICE=device, $
FONT=font, $
NORMAL=normal, $
SAVE=save, $
T3D=t3d, $
XAXIS=xaxis, $
XLOG=xlog, $
XTITLE=xtitle, $
YAXIS=yaxis, $
YLOG=ylog, $
YTITLE=ytitle, $
YNOZERO=ynozero, $
ZAXIS=zaxis, $
ZLOG=zlog, $
ZTITLE=ztitle, $
_STRICT_EXTRA=extra
ENDCASE
cgSetColorState, currentState
; Restore the color tables.
IF (!D.Name NE 'Z') THEN TVLCT, rr, gg, bb
END
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