Re: Res: Polygon from point cloud and other from triangle list?
Jon Watte <[email protected]>
| Newsgroups | gmane.games.devel.algorithms |
|---|---|
| Message-ID | <[email protected]> |
Jose Marin wrote: > I need to find the outline polygon (may be non-convex, and will be on most of the times) defined by the resulting shape. > The problem is that "the outline polygon" is not well defined, if you allow it to be non-convex. If you can define what it means to be "the outline polygon," that would get you closer to an algorithm. Write down a number of cases on paper. Draw what you think should be the resulting polygon. Try to figure out what rule you, yourself, use to create that polygon. For example, you can start with the polygon that consists of all the shapes -- this is a polygon; it's just disjoint. Now, you probably want it to be connected. That's one requirement right there. How would you go about connecting those shapes? The answer to that question is not well defined, either, but it's a start. Sincerely, jw -- Revenge is the most pointless and damaging of human desires. ------------------------------------------------------------------------------ _______________________________________________ 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