2D polygon interior detection

Version 1.1.0.0 (24.2 KB) by Bruno Luong
Detect a whereas a point is interior or exterior to a 2D polygon
5.0
(11)
2.5K Downloads
Updated 7 Jun 2010

View License

This function tries to improve the slow Matlab INPOLYGON function.

There are few other fast codes on FEX (e.g., by Darren Engwirda). After exploring many different ways, I come to the conclusion that Darren Engwirda's approach is close to optimal. So here you'll find a general method that share many common aspects, but implemented in C-Mex. I have makes few contributions: (1) a lean C-implementation, (2) Using Matlab SORT and HISTC for binning, (3) Derive an empirical rule when to apply the sorting, (4) a more rigorous on-boundary detection.

Cite As

Bruno Luong (2024). 2D polygon interior detection (https://www.mathworks.com/matlabcentral/fileexchange/27840-2d-polygon-interior-detection), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2010a
Compatible with any release
Platform Compatibility
Windows macOS Linux
Categories
Find more on Elementary Polygons in Help Center and MATLAB Answers

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

InsidePolyFolder/

Version Published Release Notes
1.1.0.0

Change the criteria to trigger the presorting step
1.0.0.0