Fast and Robust Curve Intersections

Computes intersection points of two curves.

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2024/5/31
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Douglas Schwarz (2026). Fast and Robust Curve Intersections (https://ww2.mathworks.cn/matlabcentral/fileexchange/11837-fast-and-robust-curve-intersections), MATLAB Central File Exchange. 检索时间: .

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3.0.0

I just learned about the paged matrix functions from Mike Croucher's blog and immediately replaced backslash with pagemldivide for a significant speedup.
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2.0.0

This version uses implicit expansion (or bsxfun in slightly older MATLAB versions) to compute the line segments that might overlap. When the number of line segments is large, it uses a different algorithm to avoid forming large matrices.
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1.2.0

Fixed bug that my previous "bug fix" failed to fix.
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1.1.0

Fixed bug identified by Rodrigo Portugal. No longer fails when there are no intersections and you need 4 outputs.
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1.0.0

Added ability to find self-intersections of one curve.
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