[Freegis-list] new software Gtk2::GIS

Daniel Calvelo Aros dcalvelo at minag.gob.pe
Wed Mar 16 18:37:21 CET 2005


From: Ari Jolma <ari.jolma at tkk.fi>
Sent: Wed, 16 Mar 2005 18:50:22 +0200
> By the way, does anybody know of good
> algorithm for rendering (including transparency) polygons as they 
> are in Shapefiles (non-complex but having potentially holes)?

Have you looked at gtk+agg (www.antigrain.com)? you get alpha and antialiasing
in the same vector-drawing library. It's used e.g. in matplotlib.sf.net. I'm
unsure about its speed for GIS, though.

Daniel.




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