Returning True if the Line Intersects with Any Rectangle

Question

Erkin Karatas 2019-12-27

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/498236-returning-true-if-the-line-intersects-with-any-rectangle

回答： Walter Roberson 2019-12-27

obs.m

Hi all, I have a rectangles shown as below and also the code is attached. I want to return true if any line crosses any rectangle. The coordinates of the lines do not matter, you can guess them, if you want to try.

thanks

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Answer 1

Walter Roberson 2019-12-27

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/498236-returning-true-if-the-line-intersects-with-any-rectangle#answer_407933

https://www.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections

"The intersection of groups of curves (e.g. contour lines, multiply connected regions etc) can also be computed by separating them with a column of NaNs"

So construct entries describing all of your rectangles together, separated by NaN, and then you can ask for the intersection of your line(s) with that.