Re: Possible problem with CGM terminal

[Ethan A M. <merritt@u.washington.edu>]

On Friday 29 February 2008 17:49, m sutton wrote:
> 
> I'm thinking that there may be a problem somewhere.
> 
> Attached (test38.cgm) is a cgm file created with gnuplot 3.8h.
> I can load this file into PowerPoint 2003 and Corel Draw X3 just fine.
> 
> However with the 4.3beta snapshot I get the solid black area in 
> PowerPoint and Corel Draw gives an I/O read error and OpenOffice works fine. 

Strange.  And nobody has complained for four and a half years.
I guess nobody uses cgm + pm3d.

Disabling the small section below, added in May 2003, makes pm3d work
in PowerPoint under wine.

--- gnuplot-broken/term/cgm.trm        2008-02-24 11:49:37.000000000 -0800
+++ gnuplot-works/term/cgm.trm    2008-02-29 20:29:23.000000000 -0800
@@ -1162,10 +1162,12 @@
      * we implement a big enough block that problems should be
      * rare.  */

+#ifdef BROKEN_BROKEN
     if (cgm_current.interior_style != cgm_next.interior_style){
       cgm_current.interior_style = cgm_next.interior_style;
       CGM_write_int_record(5, 22, 2, &cgm_next.interior_style);
     }
+#endif
     if (cgm_current.fill_color != cgm_next.fill_color){
       cgm_current.fill_color = cgm_next.fill_color;
       CGM_write_int_record(5, 23, 2, &cgm_next.fill_color);


Those lines were added in support of pattern-fill, and removing them
breaks pattern fill (again as judged using PowerPoint under wine).
I can stare at the code and hope that further enlightenment strikes,
but I don't have any CGM documentation to guide me any further.

	Ethan

-- 
Ethan A Merritt