On Monday 02 August 2004 11:20 pm, you wrote: > Well, the quick-and-dirty way of doing it would be to select a triangle > shape and use the GIMP's fill function. :) This is exactly what I want. For this I #include <libgimp/gimpselection_pdb.h> and #include <libgimp/gimpedit_pdb.h> Is there a drawback of this method or something else I should know (I found no "core" plug-in including a header ending "_pdb.h", but I guess this is because none uses this)? > I'm afraid I don't see why there is a lack of locality here: each triangle > to be filled indeed has locality. Of course, if the triangle is > sufficiently small, only one tile needs to be involved. Yes, each triangle has locality and of course, the whole effect also has locality (the drawable), but I meant locality with regards to tiles when using a tile iterator: I see no easy method to set up a tile iterator and iterate by some constant amount, because no matter how big I make that amount, there are always cases where triangles will cross a tile intersection. I did not look at the select and fill code, so I am not sure (especially wrt anti-aliasing) if a triangle started on tile A can be continued on tile B without visible jags. When I have the effect working, I will try such things, but it is not that important for now. Markus.
