examine points which are inside a polygon by GPU
显示 更早的评论
Hi All,
Does anyone know how I can speed up inpolygon function by using GPU?
Thanks.
回答（2 个）
Sulimon Sattari
2016-6-10
1 个投票
I wrote an inpolygon GPU function on matlabcentral.
This will only give you speed-up if the number of test points is much much greater than the number of vertices (say, 10,000 times more test points than vertices).
Regards, Sulimon
Walter Roberson
2011-11-11
0 个投票
I thought someone asked about this about a week ago, but I cannot find the posting now. The answer was that TriScatteredInterp's routine for checking points in polygons was not designed for GPU use.
Some faster point-in-polygon functions:
If, though, as the other person did, you specifically want to test whether a particular point is outside all of the polygons created by TriScatteredInterp, then you would probably have to write the GPU version of the routine yourself.
2 个评论
AP
2011-11-12
Walter Roberson
2011-11-12
As the first demo is about mapping, probably inpoly() is part of the mapping toolbox.
I have no experience in writing GPU ccode.
类别
在 帮助中心 和 File Exchange 中查找有关 GPU Computing 的更多信息
2016-6-10
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
