Matlab中2D矩阵的3D绘图 [英] 3d plotting of a 2d matrix in matlab

问题描述

我有一个MxN矩阵Z和一些变量h.该矩阵表示函数f(x，y)的解的点. h是点之间的间距.例如:

Z(x/h,y/h) = (some value in the Z direction), where x and y are some multiple of h

域从0到M * h，范围从0到N * h.我想对矩阵定义的解决方案进行3D表示.该图应类似于使用pdetool生成的图.如何在Matlab中做到这一点?

解决方案

您可以使用surf或bar3.

以下是文档:

冲浪: http://www.mathworks.fr/help/matlab/ref/surf.html; jsessionid = c680a6b29a1fa8ff47c120353c12

bar3: http://www.mathworks.fr/fr/help/matlab/ref/bar3.html

I have an MxN matrix, Z, and some variable h. This matrix represents the points to a solution of a function f(x,y). h is the spacing between points. For instance:

Z(x/h,y/h) = (some value in the Z direction), where x and y are some multiple of h

The domain is from 0 to M*h and the range is from 0 to N*h. I would like to make a 3d representation of the solution defined by the matrix. The graph should be similar to what is produced using the pdetool. How do I do this in Matlab?

解决方案

You can use surf or bar3.

Here is the documentation:

surf: http://www.mathworks.fr/help/matlab/ref/surf.html;jsessionid=c680a6b29a1fa8ff47c120353c12

bar3: http://www.mathworks.fr/fr/help/matlab/ref/bar3.html

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