[gl2ps] File error in ps output

[Christophe Geuzaine]

Fergus Ray Murray wrote:
> Sure, try this.
> 

It looks like for some reason we get "quiet not a number" errors when 
computing the colors: there are lines like these in your .ps file

522.222 50 -1.#QNAN -1.#QNAN -1.#QNAN 527.778 50 -1.#QNAN -1.#QNAN 
-1.#QNAN 527.778 55.5557 -1.#QNAN -1.#QNAN -1.#QNAN ST

I don't understand why this happens. I've added a couple of guards for 
potential "divide by zero" cases in the code. Could you try tomorrow's 
nightly snapshot and tell us if it makes any difference?

Thanks,
Ch.



> Cheers!
> 
>  - f.
> www.oolong.co.uk <http://www.oolong.co.uk>
> 
> 2008/5/21 Christophe Geuzaine <cgeuzaine at ulg.ac.be 
> <mailto:cgeuzaine at ulg.ac.be>>:
> 
>     Fergus Ray Murray wrote:
> 
>         My program using gl2ps has just started giving me errors in some
>         output files, and I have no idea why - it seems to be a recent
>         thing, but I haven't edited that part of the program, and other
>         output files still seem to work fine.
> 
>         I don't know if this helps at all, but here's part of the error
>         dialog that gsview spews:
> 
>         Error: /undefined in -1.#QNAN
>         Operand stack:
>           --dict:1132/1686(ro)(G)--   --nostringval--   89.7729   524.432
>         Execution stack:
>           %interp_exit   .runexec2   --nostringval--   --nostringval--  
>         --nostringval--   2   %stopped_push   --nostringval--  
>         --nostringval--   false   1   %stopped_push   1   3  
>         %oparray_pop   1   3   %oparray_pop   1   3   %oparray_pop   1  
>         3   %oparray_pop   .runexec2   --nostringval--   --nostringval--
>           --nostringval--   2   %stopped_push   --nostringval--
>         Dictionary stack:
>           --dict:1132/1686(ro)(G)--   --dict:0/20(G)--  
>         --dict:75/200(L)--   --dict:39/64(L)--
>         Current allocation mode is local
>         Last OS error: No such file or directory
> 
>         --- Begin offending input ---
>         3 T
> 
> 
>     This line looks suspicious. Could you send the complete .ps file?
> 
> 
>         50 524.432 55.6816 524.432 55.6816 527.273 T
> 
> 
> 
>         Cheers!
> 
>          - f.
>         www.oolong.co.uk <http://www.oolong.co.uk> <http://www.oolong.co.uk>
> 
> 
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> 
> 
>     -- 
>     Prof. Christophe Geuzaine
>     University of Liege, Electrical Engineering and Computer Science
>     http://www.montefiore.ulg.ac.be/~geuzaine
>     <http://www.montefiore.ulg.ac.be/%7Egeuzaine>
> 
> 


-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine