How to sort points clockwise or counterclockwise?
23 ビュー (過去 30 日間)
古いコメントを表示
I'm using inpolygon function and it requires points to be sorted clockwise and sometimes counterclockwise, how I can do that about the mean point?!
I've attached the data, and here is a link for inpolygon function: https://www.mathworks.com/help/matlab/ref/inpolygon.html
1 件のコメント
Matt J
2022 年 9 月 15 日
Do you intend to fit a rectangle to these points? Otherwise, they don't form a clear polygon.
回答 (1 件)
John D'Errico
2022 年 9 月 15 日
編集済み: John D'Errico
2022 年 9 月 15 日
Can you compute the polar coordinates angle, around that mean? (Hint: use atan2. Don't forget to subtract off the mean FIRST.)
Can you now use sort? (Yes.) A clockwise sort just implies DECREASING order of the polar angle? An increasing sort would be a clockwise rotation.
参考
カテゴリ
Help Center および File Exchange で Shifting and Sorting Matrices についてさらに検索
製品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!