Calculating distance from central point to perimeter of shape engulfing central point.

Question

ethan campbell 2018-7-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/409663-calculating-distance-from-central-point-to-perimeter-of-shape-engulfing-central-point

评论： Matt J 2018-7-10

Hi all, I'm trying to make a code which takes a non-moving graph point and calculates the distance from that point to the nearest perimeter point of a shape surrounding it. The shape may vary in sides and location relative to that central point, but the central point will always be located inside of the shape. English is not my first language, so pardon me if this is unprofessionally written. I will attempt to clarify further if it is needed. Thanks, all.

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

Matt J 2018-7-10

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/409663-calculating-distance-from-central-point-to-perimeter-of-shape-engulfing-central-point#answer_328252

编辑：Matt J 2018-7-10

在 MATLAB Online 中打开

How is the shape represented? As an image? If so, bwdist() will give you the result directly. You could also do

[i,j]=find(yourImage);
mindist=min( (i-i0).^2 + (j-j0).^2 );

2 个评论
显示无隐藏无

ethan campbell 2018-7-10

It is shown as an image, so that should work. I'm not very proficient in matlab, would you be able to send a link to teach me how to use that command?