You might be able to tweak the drawing to help fill only the part of the U shaped building. If you draw the "outline" of your U shaped building in a "color" that is NOT in another building inside the U, then as you fill the U polygon, you can consider the other building to be "outside" of the U polygon because it doesn't contain any of the "keying" colors you're using to fill the U poly.
Or something like that. Doug. -----Original Message----- From: Kim Hock NG [mailto:[EMAIL PROTECTED]] Sent: Wednesday January 23, 2002 17:37 To: Palm Developer Forum Subject: RE: Polygon filling for Palm - Code Example Thanks. You seem to be working within the rectangle bounded by 0,0,XMAX, YMAX. In a general condition, there may be other polygons nearby that cuts into the rectangular region that I am trying to fill. E.g There is a U shaped building and smack in the center is another square building. We are supposed to only fill the U shaped building and left the square building alone. Do I have to perform the operation in another rectangular area first that UNION it will the background rectangle? All these trouble just to get that filling.... --- Doug McFadyen <[EMAIL PROTECTED]> wrote: > > Here's some REALLY OLD fossilized code I wrote years > ago to test a poly > filling algorithm. This code can be compiled by the > old MS DOS (C 8.0) > compiler. It works DIRECTLY on an old DOS text > screen, using the screen > memory address as a 80x25 array in which to draw the > polygon and fill it. > If compiled, the program would probably work in a > DOS Windows under Windows > 9x.... > __________________________________________________ Do You Yahoo!? Great stuff seeing new owners in Yahoo! Auctions! http://auctions.yahoo.com -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/tech/support/forums/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/tech/support/forums/
