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cgdisplay [message #90793]

Thu, 16 April 2015 05:45

Sverre Solberg
Messages: 18
Registered: February 2005

Junior Member

Hi,

I started using David's cgdisplay a year or two ago. Now, when trying to run the same program it crashes and I get an error message:
Traceback Report from CGDISPLAY:

% Expression must be a structure in this context: PS_STRUCT (_$FSC_PS_START_).
% Execution halted at: CGDISPLAY 288 cgdisplay.pro
% $MAIN$

I guess I have downloaded a new version of the coyote lib since then and I see from the header that the last bug fix concerned the use of encaps postscript with a portrait aspect ratio and that's exactly my situation. However, it seems as I'm now not able to use the cgdisplay with a ps device at all. These two commands
set_plot,'ps'
cgdisplay,xsize=2000,ysize=1000

give exactly the samme error message. Am I doing something wrong or is it a bug? The crash occurs here (and it's the 'else'-part that's true). It seems ps_struct is not defined as a struc(?)
IF N_Elements(ps_struct) NE 0 THEN BEGIN
keywords = cgPSWindow(AspectRatio=Float(pysize)/pxsize, Landscape=ps_struct.landscape)
ENDIF ELSE BEGIN
keywords = cgPSWindow(AspectRatio=Float(pysize)/pxsize)
ps_struct.landscape = keywords.landscape
ENDELSE

Sverre

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[Message index]

		cgdisplay By: Sverre Solberg on Thu, 16 April 2015 05:45
		Re: cgdisplay By: David Fanning on Thu, 16 April 2015 06:01
		Re: cgdisplay By: David Fanning on Thu, 16 April 2015 06:03
		Re: cgdisplay By: Sverre Solberg on Thu, 16 April 2015 06:27

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