Mesh Plot surface dimensions must agree

26 次查看（过去 30 天）
Heath Carignan
Heath Carignan 2021-11-22
回答： Star Strider 2021-11-22
Hello,
I am plotting a map of a lake and its depth level for a class of mine.
I have compiled all my data intro a matrix and I am trying to apply it to a mesh plot using the mesh(...) function. However when I run my code I keep getting a "Data Dimensions must Agree" error even when I check that the x and y values that I set match the length and height of the matrix that I will be using as my z value.
Could I get some help in finding out what I'm doing wrong?
Thanks!
%--------------------------------------------------------------------------
% The map containing the data was broken into squares containing each given
% data point or approximate value. The plot is 41 x 42 squares
%--------------------------------------------------------------------------
x = 0:1:41;
y = 0:1:42;
z = [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -30 0 0 0 0 0 0 -60 -70 -50 -30 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -10 -40 -40 -30 -30 -20 0 -50 -60 -60 -20 -20 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -30 -30 -30 0 0 0 -50 -60 -60 0 0 0 ;
0 0 0 -20 0 0 0 0 0 0 0 0 -10 -10 0 -30 -20 -10 -10 -30 -30 0 0 -30 0 -50 -50 -50 0 0 0 ;
0 0 0 -30 -30 0 0 0 0 0 0 -40 0 -10 -30 -10 -10 0 0 -20 -30 0 0 -30 -50 -50 -50 0 0 0 0 ;
0 0 -20 -40 -40 -30 0 0 -30 -30 -40 -40 0 0 -10 0 0 0 0 0 -20 -50 -30 -40 -50 -60 -50 0 0 0 0 ;
0 0 0 -20 -40 -40 0 0 -40 -40 -50 0 0 0 0 0 0 -10 0 0 -40 -60 -50 -30 -50 -60 -50 0 0 0 0 ;
0 0 -20 0 -30 -50 -40 0 -30 -50 -40 -40 0 0 0 -10 -30 -30 -60 -40 -50 -50 -40 -30 -20 0 -30 0 0 0 0 ;
0 0 -20 0 -30 -50 -40 -40 -40 -60 -50 -50 -30 -30 -30 -30 -30 -60 -70 -70 -40 -40 0 0 -20 -10 -20 0 0 0 0 ;
0 0 0 -20 -30 -40 -50 -50 -70 -90 -90 -50 -30 -10 -40 -40 -40 -50 -60 -50 -30 -30 0 0 -10 0 0 0 0 0 0 ;
0 0 0 -20 -30 -40 -50 -70 -70 -80 -90 -80 -70 -50 -50 -60 -60 -70 -80 -70 -30 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 -20 -30 -40 -50 -60 -70 -70 -80 -70 -60 -30 -40 -30 -50 -40 -70 -60 -40 0 0 0 0 0 0 0 0 0 0 ;
-10 -10 0 -20 -30 -30 -40 -60 -70 -60 -50 -60 -60 -40 -40 -10 -20 -40 -60 -40 -30 0 0 0 0 0 0 0 0 0 0 ;
-10 0 -30 -30 -30 -40 -50 -50 -60 -50 -40 -50 -40 -40 -40 -30 -20 -60 -60 -30 0 0 0 0 0 0 0 0 0 0 0 ;
0 -20 -30 0 -30 -20 -40 -40 -50 -40 -40 -30 -30 -30 -30 -30 -10 -10 -40 -40 -30 0 0 0 0 0 0 0 0 0 0 ;
-20 -30 -30 0 -30 -10 0 -30 -40 -30 -10 -10 -20 -20 0 -30 -10 -10 -40 -40 -30 0 0 0 0 0 0 0 0 0 0 ;
0 0 -30 -40 -30 -10 -20 0 0 -10 0 0 -10 0 0 -40 -30 -30 -40 -40 -30 -20 0 0 0 0 0 0 0 0 0 ;
0 0 0 -30 -30 -30 0 0 0 -20 0 0 0 0 0 -30 -30 -20 -20 -40 -30 -20 -10 0 0 0 0 0 0 0 0 ;
0 0 0 0 -10 -20 -20 -30 -30 -30 -20 -20 -20 -30 0 -10 -20 -30 -20 -30 -40 -20 -10 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 -30 -40 -20 -30 0 -40 -30 -30 -30 -20 -30 -40 0 0 -30 -30 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 -30 -20 -20 -30 -40 -40 -40 -30 -10 -20 -50 -50 0 0 0 -30 -20 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 -30 -30 -30 -30 -30 -30 -40 -30 0 -30 -40 -40 -10 0 0 0 -30 0 0 0 0 0 0 0 0 ;
0 0 0 0 -10 -20 -20 -20 -30 0 0 0 -40 -30 0 -30 -40 -40 -20 -10 0 0 0 -30 -30 0 0 0 0 0 0 ;
0 0 -10 -20 -10 -40 -50 -40 -30 0 -10 -10 -30 -30 -10 -20 -40 -30 -30 -20 -10 0 0 0 -30 -20 0 0 0 0 0 ;
-20 -10 -30 -20 -30 -40 -20 -30 -30 -30 0 0 -30 -30 0 0 -40 -40 -20 0 0 0 0 0 -20 -20 -20 -20 0 0 0 ;
-30 -20 -30 -20 -30 -30 -30 -30 -30 -30 -20 0 -30 -20 0 0 -20 -40 -40 -10 0 0 0 0 -30 -30 0 0 0 0 0 ;
-30 -30 -30 -30 -30 -20 -10 -30 -20 -30 -20 -10 -30 -20 0 0 0 -20 -30 -40 -30 -20 -20 -10 0 0 0 0 0 0 0 ;
-30 0 0 -10 -20 -20 -10 -10 -30 -30 -10 -20 -20 -30 -20 0 0 0 -20 -20 -20 -10 -10 -10 0 0 0 0 0 0 0 ;
0 0 0 0 -10 -20 -20 -30 -30 -30 0 0 -10 -20 -30 -20 0 0 0 0 0 0 0 -10 0 0 0 0 0 0 0 ;
0 0 0 0 0 -10 -20 -30 -30 -30 -20 0 0 0 -30 -30 0 0 0 0 0 0 0 -10 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 -10 -30 -20 -30 0 0 0 0 -10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 -20 -20 -20 -30 0 0 0 -10 -20 -20 -20 -20 0 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 -10 0 0 -30 -30 0 0 0 -20 -30 -30 -30 -10 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 -10 -30 -20 0 -10 -20 -30 -30 -30 0 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 -10 -30 -30 -10 0 0 -20 -30 -20 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 -10 -10 -10 0 0 0 -30 -20 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -20 -20 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -20 -10 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -10 -10 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -10 -10 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -10 0 0 0 0 0 0 0 0 0 0 ;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ;];
mesh(x,y,z)
  1 个评论
Dyuman Joshi
Dyuman Joshi 2021-11-22
The error you are getting is pretty straight-forward. The size of all input arguments should be same.
size(x) = 1x41, size(y) = 1x42 and size(z) = 41x42. All sizes should be same for mesh().

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Star Strider
Star Strider 2021-11-22
The easiest solution in that instance is either to reverse the first two arguments to surf or transpose the ‘Z’ matrix.
.

类别

在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息

标签

产品


版本

R2020b

Community Treasure Hunt

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

Start Hunting!

Translated by