Re: Draw & fill regular polygon?
Graham Rhodes ARA/SED <[email protected]> Wed, 10 Aug 2011 15:29:27 +0000
| Newsgroups | gmane.games.devel.algorithms |
|---|---|
| Message-ID | <62262355624C1F488FCA8890E8D1BBB9088D0737@mail-west-2.exchange2.ara.wan> |
Some helpful Google search terms are "polygon rasterization" and "polygon scan conversion." Someone else mentioned the Foley/van Dam book/et al. book, which is a good reference that describes the classic algorithm. The book Graphics Gems I also has a discussion, though it is brief. You can also find this stuff online, for free. For example, two sets of lecture slides from University of Virginia that look good: http://www.cs.virginia.edu/~gfx/courses/2004/Intro.Fall.04/handouts/11-polyscan.pdf www.cs.virginia.edu/~asb/teaching/cs445-fall06/slides/09-rasterization.ppt I even found this YouTube video: http://www.youtube.com/watch?v=TNbkX5bYrtE Graham -----Original Message----- From: Joel B [mailto:[email protected]] Sent: Wednesday, August 10, 2011 7:49 AM To: Game Development Algorithms Subject: [Algorithms] Draw & fill regular polygon? I should know how to do this, but i don't. I only have the ability in my system to draw lines (x1,y1,x2,y2)' to a bitmap, or write to the bitmap as a byte array. Can someone tell me the stepwise procedure to draw a polygon of n sides and then fill it? Having trouble finding anything online that doesn't use pre-existing primitives or libraries. Thanks, Joel Sent from my iPhone ------------------------------------------------------------------------------ uberSVN's rich system and user administration capabilities and model configuration take the hassle out of deploying and managing Subversion and the tools developers use with it. Learn more about uberSVN and get a free download at: http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ GDAlgorithms-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list Archives: http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list ------------------------------------------------------------------------------ uberSVN's rich system and user administration capabilities and model configuration take the hassle out of deploying and managing Subversion and the tools developers use with it. Learn more about uberSVN and get a free download at: http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ GDAlgorithms-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list Archives: http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list