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Fast Inpolygon in MEX 1.0

  Date Added: June 18, 2013  |  Visits: 170

Fast Inpolygon in MEX

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This is a C implementation of the great Matlab code provided by Darren Engwirda. You can find his code in:http://www.mathworks.com/matlabcentral/fil...in-polygon-test According to my estimates, it works more than 2x as fast. So far, this is one of the fastest implementation that I know of. Sorting is big step of this algorithm. To make it an exact replica, I use stable_sort of std library. Here is a sample call: tic(); [In2 On2]=inpolygon_fast(x, y, xv, yv); toc(); The call interface is similiar to inpolygon and not to inpoly. Here x and y are the points to check, where xv and yv define the polygon. The attachment includes the cpp file, a sample function for comparison and Darren's code.

Requirements: No special requirements
Platforms: Matlab
Keyword: Check Comparison Define Dinpolygon Fastx Inpoly Inpolygon Interface Points Similiar
Users rating: 0/10

License: Shareware Size: 10 KB
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