how to plot a 3D surface from N by 3 matrix

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mohamed Faraj
mohamed Faraj 2019-8-22
评论： AdamG2013468 2019-8-22
I have a matrix with dimensions N by 3, for example 100 rows and 3 columns. Each row correspondds to the 3D location of a point, i.e., we have 100 points. I want to pot the 100 points and connect them as a surface.

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AdamG2013468
AdamG2013468 2019-8-22
Try,
S = size(matrix); %"matrix being your generic matrix
[X, Y] = meshgrid(1:S(2), 1:S(1));
Z = matrix; %e.g. 100 by 3 matrix
surf(X,Y,Z)
  2 个评论
mohamed Faraj
mohamed Faraj 2019-8-22
Hi Adam. The X matrix is 100 by 3 matrix of the form [1 2 3;1 2 3;1 2 3 ....]
AdamG2013468
AdamG2013468 2019-8-22
You should be able to use the code above, adjusting for your desired X, Y, Z axes values accordingly.

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更多回答（1 个）

darova
darova 2019-8-22
Look for griddata()

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