2D PostProcessing plot in MATLAB
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I want to plot my thermal analysis results on a 2D mesh. I have a 2xN matrix named "coord", which basically has the X and Y coordinates of the nodes of my mesh. At each node, I have a temperature value which is saved as a 1xN matrix. How do I plot a heatmap or a contour plot for my results? I've tried Surf fucntion, which expects a matrix of minimum size 2x2.. Where as my temperatures are saved as "nodeDisp" which is a 1xN vector leading to "Error using surf (line 71) Z must be a matrix, not a scalar or vector." I tried scatteredInterpolant, with which I could plot my mesh but no signs of the colored plot of displacements I wanted.
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Venkata Siva Krishna Madala
le 22 Mar 2018
Hello Pranay,
Its better if you convert the coord to a Nx2 matrix and temperature values to a Nx1 matrix by transposing it. Then you can use the surf command as given below
surf(coord(:,1),coord(:,2),temperature_values)
This should remove the surf plot error and generate the plot as you need.
Regards,
Krishna Madala
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