http://www.mathworks.com/matlabcentral/newsreader/view_thread/240651 MATLAB Central Newsreader - best way to do this? Feed for thread: best way to do this? en-us &copy;1994-2012 by MathWorks, Inc. webmaster@mathworks.com MATLAB Central Newsreader http://blogs.law.harvard.edu/tech/rss 60 MathWorks http://www.mathworks.com/images/membrane_icon.gif Mon, 08 Dec 2008 16:57:01 -0500 best way to do this? http://www.mathworks.com/matlabcentral/newsreader/view_thread/240651#615714 Pinpress Hi all,<br> <br> Suppose I have a closed surface which is represented as a triangular mesh (all triangles have an outward pointing surface normal), how do I efficiently test whether a given point is inside or outside it? For example, the closes surface can be generated from an isosurface. Is there an existing Matlab code to achieve this? Please note that in general I have a lot of points to test, so efficiency is important. <br> <br> Thanks a lot.