Area calculation within contour

5 次查看（过去 30 天）
William White
William White 2018-2-6
回答： William White 2018-2-7
Sirs, I have the following plot
[C,h] = contour(X,Y,Z,[s,s])
Where s is a variable that I change. This plot the image:
I am interested to calculate the area inside this contour (so I can compare different values of s)
I have attempted to use some previous solutions I have found on this site, to no joy.
I have attached data for X,Y,Z
s can take any value <Z max
kind regards. W
  4 个评论
显示 2更早的评论
Image Analyst
Image Analyst 2018-2-6
Someone could if you had given us the data to create your plot. Come on, make it easy for people to help you not hard.
Steven Lord
Steven Lord 2018-2-6
You should give a small sample data set that's more or less representative of your actual problem. That way interested people can test out their suggestions ahead of time to make sure they work.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

William White
William White 2018-2-7
I think I have a rather clumsy numeric answer.
I count the number of entries in Z that are equal or larger than s.
Then multiply by the area of a unit "pixel" (because I know the dimensions of X,Y I know how many "pixels" are in X,Y and so the area of that pixel).
Thanks for everybody's help W

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Contour Plots 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by