How to calculate dimension of a bounding box with an angle?

Question

Bingjie Mu 2016-5-19

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/284959-how-to-calculate-dimension-of-a-bounding-box-with-an-angle

评论： Bingjie Mu 2016-5-19

Hi,everyone. I really need help from you that I don't know how to calculate the dimension of bounding box with a rotated angle. I have already find out the 4 endpoints of the bounding box.(x1,y1),(x2,y2), (x3,y3),(x4,y4).But how to continue to get the length and width of the bounding box? Wish someone can help me.Thanks in advance!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

parth pandya 2016-5-19

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/284959-how-to-calculate-dimension-of-a-bounding-box-with-an-angle#answer_222718

It will help if you can provide more information and exactly what you want. But you can convert your Cartesian coordinates to polar coordinates and then again to Cartesian. It will help you.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 2

John D'Errico 2016-5-19

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/284959-how-to-calculate-dimension-of-a-bounding-box-with-an-angle#answer_222721

Existing code is always a better choice, if you can find it? For example, you can find minboundrect on the file exchange.

If you want to write some code yourself, you might find a few nice tricks in there anyway.

3 个评论
显示 1更早的评论隐藏 1更早的评论

John D'Errico 2016-5-19

minboundrect always generates a rectangle, so right angles. However, I think I recall writing also a tool in there called minboundparallelogram.

Bingjie Mu 2016-5-19

minboundrect.m

Okay, now I understand, for my code I need to use the file minboundrece.m,but what I want is the edge length of the rectangle,not the area or primeter. Could you help me how to modify this program to output the edge length?

请先登录，再进行评论。