Re: Polygon with holes
- To: mathgroup at smc.vnet.net
- Subject: [mg97406] Re: Polygon with holes
- From: Harrie Kraai <hakraai at xs4all.nl>
- Date: Thu, 12 Mar 2009 05:42:50 -0500 (EST)
- References: <200903101034.FAA09944@smc.vnet.net> <gp7vr4$1bn$1@smc.vnet.net>
Thanks Frank, I was not aware of this library. Now I know how to compute the polygons. But how do I render them in Mathematica? HK Frank Scherbaum wrote: > HK > Am 10.03.2009 um 11:34 schrieb Harrie Kraai: > >> Hi group, >> >> Does anyone know of a facility for Polygons (graphics) with holes >> inside? >> I guess there is no such thing as an oriented polygon in Mathematica? >> Or a polygon consisting of disjoint lines (inner and outer contours, >> clockwise and counterclockwise)? >> >> I can see that it is possible to connect outer and inner contours >> using >> a dummy line, but that is not so easy to program in a generic way. >> >> Solutions such as creating an artificial hole by another Polygon in >> the >> background colour are not really acceptable. >> >> Polygon's with holes would be very useful for maps etc. >> >> Sincerely >> >> HK >> general > you may find the general polygon clipping library of interest for your > purpose. It can deal with polygons with holes. > http://www.cs.man.ac.uk/~toby/alan/software/ > Cheers, > Frank >
- References:
- Polygon with holes
- From: Harrie Kraai <hakraai@xs4all.nl>
- Polygon with holes