[comp.text.tex] using ghostscript to preview dvips postscript ... HELP !

farkas@eecg.toronto.edu (Keith I. Farkas) (05/11/91)

I am using version 2.1.1 of ghostscript to preview the postscript generated
by version 5.4.7 of dvips and I have a slight problem.

Background: My document contains some postscript generated by idraw -- i.e. I
    use \psfig to input an idraw figure into the document. The idraw file
    terminates with the postscript command "showpage" followed by "end".

The Problem: Ghostscript does not understand the "showpage" command. When
    this point in the file is reached, ghostscript complains about showpage
    being undefined and aborts the displaying of the file. When I comment
    out this command, (i.e. the showpage), ghostscript happily displays the
    whole file.

Analysis: Since ghostscript did not complain when asked to display the idraw
    file alone, I exmained the "code" generated by dvips. In the dvips
    output, all figures included with the \psfig command are surrounded by
    the comments "%%BeginDocument" and "%%EndDocument", and the commands
    "startTexFig" and "endTexFig".

Questions:
    1. Could ghostscript be unhappy about a showpage command appearing
       within a TexFig?

    2. How, short of editing each file I want to preview, can I get
    ghostscript to cooperate?




   All suggestions would be greatly appreciated. 

   thanks.
   
   	-Keith

	farkas@eecg.toronto.edu

xiaofei@EINSTEIN.PHYSICS.BUFFALO.EDU (Xiaofei Wang) (05/11/91)

[Problem of ghostscript with showpage]

This is a known bug. 

The fix has been posted on gnu.ghostscript.bug. It requires
changes in C program and recompile the program.

I have save all the info in a file but I did not fix the problem myself
considering the fact the ghostscript 2.2 will be released around 
Hune 1, 1991.

I solved the problem by changing ``showpage'' to ``copypage''.
-- 
xiaofei@acsu.buffalo.edu / rutgers!ub!xiaofei / v118raqa@ubvms.bitnet