3D-plot of circular elements inside a matrix
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Hi all,
I want to use meshc command and draw some elements inside a matrix that the elements indexes make a circle. for example in matrix A , I want to draw just the elements greater than 0:
A=[ 0 0 2 0 0;
0 1 3 2 0
3 4 2 1 3
0 2 3 5 0
0 0 4 0 0];
I want to eliminate the elements that are zero and draw the other elements in 3D. by doing so, we can clearly see the X-Y plane contours in 3-D plot.
Any reply is really appreciated.
Thanks
3 commentaires
Sean de Wolski
le 7 Mai 2012
What do you expect as a result? Okay, we do _something_ to the zero elements, I'm not clear on what. Then we do _something_ and magically have a 3-d shape/plot. This is not clear to me. Please explain the two somethings and the expected result.
Réponse acceptée
Sean de Wolski
le 7 Mai 2012
A=[ 0 0 2 0 0;
0 1 3 2 0
3 4 2 1 3
0 2 3 5 0
0 0 4 0 0];
A(~A) = nan; %nan out the zeros
meshc(A)
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