[GRASS-dev] Re: [GRASS-SVN] r33046 - in grass/trunk/lib: cairodriver pngdriver

[Glynn Clements]

Maciej Sieczka wrote:

> > Author: glynn
> > Date: 2008-08-23 22:20:30 -0400 (Sat, 23 Aug 2008)
> > New Revision: 33046
> > 
> > Modified:
> >    grass/trunk/lib/cairodriver/Graph.c
> >    grass/trunk/lib/pngdriver/Draw_line.c
> >    grass/trunk/lib/pngdriver/Polygon.c
> > Log:
> > Fix bug with cairo driver failing to erase background
> > Fix bug with PNG driver skipping topmost line of polygon
> > Change PNG driver's line-drawing to use FP throughout
> 
>  From the changes as above, is the "Fix bug with PNG driver skipping 
> topmost line of polygon" appropriate for backporting?

No.

The display architecture has been substantially rewritten to use
floating-point coordinates throughout. In most cases, it isn't
practical to backport changes.

I suspect that this particular bug was introduced in the conversion to
FP, so there's nothing to backport.

-- 
Glynn Clements <glynn at gclements.plus.com>