Re: gtk-list digest, Vol 1 #1332 - 13 msgs

[Saul Simhon <saul cim mcgill ca>]

that's a cool idea...haven't even thought of that...although, the
application that I'm playing with is rather obscure...the fill method
actually needs to know about the boundary! Something that I left out in my
first email....the fill synthesis chooses colors based on the color and
tangent angle of the boundary! So the edge's shape and color dictate how the
area should be filled!  Although, its conceivable to base the fill only on
the vertex points, which I already have, and then mask the whole thing! I
think I'll try that!
There may be some issues with non-convex boundaries.

Thanks,
Saul.


> How about creating the colour/texture in a pixmap and then drawing it
> using a filled rectangle as a mask?
>
> That would save you iterating through the pixels, searching for the
> boundary, and would also give you the exact points from the
> 'draw_line' function to clip the image.
>
> Allan
>
> > Saul Simhon wrote:
> > > I wish I can use gdk_draw_polygon....However I need to plug in my own
> > custom
> > > flood fill algorithm. (its actually a texture synthesis method!)  I
> > >>>I'm trying to write a custom procedure that would flood fill an area
> > > using a color (or texture). I have used the drawing_area widget
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