An unofficial fork of Erik Johnson's MEX interface to Angus Johnsons's polygon clipper.
BRANCHES
- main -- contains Erik Johnson's code with minor fixes
- polygon -- adapted to work with the polygon class in https://github.com/martinherrerias/matlab-utils
FUNCTIONS
- polyclip -- find the difference, intersection, xor or union of two polygons
- polyout -- outset (or inset) a polygon's vertices
The work is done by the MEX file matlab/clipper (which must be compiled).
INSTALLATION
Clone repo (make sure you are on the 'polygon' branch):
git clone --branch polygon https://github.com/martinherrerias/matlab-polygon-clipper.git
Make '.../clipper/matlab' the working directory, and compile for your platform:
mex '-D__int64=__int64_t' '-I../cpp' '../cpp/clipper.cpp' 'mexclipper.cpp'
Run polyclip_test and polyout_test to check that everything works allright.
CREDITS
CPP code updated directly from Angus Johnson's: http://www.angusj.com/delphi/clipper.php https://sourceforge.net/p/polyclipping/code/HEAD/tree/trunk/
Original MEX wrapper by Prof. Erik A Johnson JohnsonE@usc.edu, https://de.mathworks.com/matlabcentral/fileexchange/61329-new-polygon-clipping-and-offsetting
... itself a re-write of one originally written by Emmett http://www.mathworks.com/matlabcentral/fileexchange/36241-polygon-clipping-and-offsetting
... which was based on Sebastian Holz's Polygon Clipper mex wrapper for the GPC library https://www.mathworks.com/matlabcentral/fileexchange/8818-polygon-clipper
See original licese files in ./matlab and ./cpp