Fast and Robust Curve Intersections

版本 2.0.0.0 (11.5 KB) 作者： Douglas Schwarz

Computes intersection points of two curves.

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40.0K 次下载

更新时间 2017/5/26

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编者注： This file was selected as MATLAB Central Pick of the Week

This function computes the (x,y) locations where two curves intersect. The curves can be broken with NaNs or have vertical segments. It is also very fast (at least on data that represents what I think is a typical application).

引用格式

Douglas Schwarz (2022). Fast and Robust Curve Intersections (https://www.mathworks.com/matlabcentral/fileexchange/11837-fast-and-robust-curve-intersections), MATLAB Central File Exchange. 检索来源 2022/8/17.

MATLAB 版本兼容性

创建方式 R2009a

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平台兼容性

Windows macOS Linux

类别

Mathematics and Optimization > Curve Fitting Toolbox > Fit Postprocessing >

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致谢

参考作品： Curve Intersect 2

启发作品： RivMAP - River Morphodynamics from Analysis of Planforms, clabel_along, Fast and Robust Self-Intersections, Kirchhoff Vortex Contour Dynamics Simulation, Fast Line Segment Intersection, Gear shift map for Automatic Transmission in S mode, Matlab to Ansys ICEM/Fluent and Spline Drawing Toolbox, anomaly

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intersections(x1,y1,x2,y2,robust)

下载	2017/5/26	2.0.0.0	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.
下载	2010/1/27	1.2.0.0	Fixed bug that my previous "bug fix" failed to fix.
下载	2010/1/25	1.1.0.0	Fixed bug identified by Rodrigo Portugal. No longer fails when there are no intersections and you need 4 outputs.
下载	2008/2/26	1.0.0.0	Added ability to find self-intersections of one curve.