surfnorm function shows error

Question

Sara 2020-11-15

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/648438-surfnorm-function-shows-error

评论： Ameer Hamza 2020-11-15

采纳的回答： Ameer Hamza

Screen Shot 2020-11-15 at 10.44.00 AM.png

在 MATLAB Online 中打开

Hi,

I am trying to use surfnorm function to calculate the nor of 3D meshgrid. But the use of the functions shows error "Y and Z must be the same size as X." which I do not understand why!!

The size of X,Y,Z are the same even though the document in mathwork says it is possible to use meshgrid as an input as attached in the questions

x = linspace(-1,1,10);
y = x;
z = x;
[X,Y,Z]=meshgrid(x,y,z);
figure,
surfnorm(X,Y,Z);

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Answer 1

Ameer Hamza 2020-11-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/648438-surfnorm-function-shows-error#answer_545023

编辑：Ameer Hamza 2020-11-15

在 MATLAB Online 中打开

X, Y, and Z must be 2D matrices. Z is a function of X and Y in this case. The following shows an example of how to use it properly

x = linspace(-1,1,10);
y = x;
[X,Y]=meshgrid(x,y);
Z = X+Y; % Z=X+Y is chosen as an example to show Z is a function of X and Y
figure,
surfnorm(X,Y,Z);