Well, I was hoping to spare the details of where this exists in my process and isolate it as a single problem to solve ... what I am really doing is creating a series of polygons on top of a base map image. The polygons in this case represent Zip code boundaries, and are not simple single polygons, but rather collections of polygons, some of which are "inclusion" and some of which are "exclusion" (think of a donut). They are ordered correctly so that all "inclusions" are drawn first, then the "exclusions" are processed ... and my effort was essentially "how to make the contents of a polygon purely transparent".
The clip mask does sound interesting however. In theory, I could define the exclusion areas as "clip mask" areas, then draw the "inclusion polygons" followed by simply outlining the "exclusion" polygons in a line with no fill. I think I'll play with that for a while. Thanks for the input!
-kh
The clip mask does sound interesting however. In theory, I could define the exclusion areas as "clip mask" areas, then draw the "inclusion polygons" followed by simply outlining the "exclusion" polygons in a line with no fill. I think I'll play with that for a while. Thanks for the input!
-kh