How to sort points clockwise or counterclockwise?

9 visualizaciones (últimos 30 días)
youssef hany
youssef hany el 15 de Sept. de 2022
Comentada: youssef hany el 15 de Sept. de 2022
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 comentario
Matt J
Matt J el 15 de Sept. de 2022
Do you intend to fit a rectangle to these points? Otherwise, they don't form a clear polygon.

Iniciar sesión para comentar.

Iniciar sesión para responder a esta pregunta.

Respuestas (1)

John D'Errico
John D'Errico el 15 de Sept. de 2022
Editada: John D'Errico el 15 de Sept. de 2022
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.

Categorías

Más información sobre Shifting and Sorting Matrices en Help Center y File Exchange.

Etiquetas

Productos

Community Treasure Hunt

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

Start Hunting!

Translated by