How to get coordinates for a specific contour line?

34 次查看（过去 30 天）
Sk Zeeshan Ali
Sk Zeeshan Ali 2020-1-20
编辑： Sk Zeeshan Ali 2020-2-17
I have the program as follows:
x = -2:0.2:2;
y = -2:0.2:3;
[X,Y] = meshgrid(x,y);
Z = X.*exp(-X.^2-Y.^2);
contour(X,Y,Z)
Now, I want to get a two-column matrix C that will give the (x,y) coordinates of a specific contour line, let us say for Z = 0.1. So, how to get this two-column matrix?

请先登录，再回答此问题。

采纳的回答

Claudio Iturra
Claudio Iturra 2020-1-20
编辑：Image Analyst 2020-1-21
x = -2:0.2:2;
y = -2:0.2:3;
[X,Y] = meshgrid(x,y);
hold on % to your meshgrid a specific value for your contour.
[x1,y1] = contour(X,Y,Z,[0.1 0.1],'*k') % x1 will be your "two-column matrix"
  1 个评论
Sk Zeeshan Ali
Sk Zeeshan Ali 2020-2-15
编辑：Sk Zeeshan Ali 2020-2-17
That's nice suggestion.
Now, can the contour line be made smooth without changing the meshgrid?

请先登录，再进行评论。

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