3D plot making smooth

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Mehdi
Mehdi on 11 Mar 2012
Commented: Walter Roberson on 26 Jul 2015
Dear friends, I have plotted a 3D figure using a matrix elements. I mean the matrix row and column are 'X' and 'Y' and the value of each element is 'Z' axis. The value of elements (Z axis) that are beside each other are close enough but since the 3D curve is discrete, the plot is not very clear. How can I convert it to a smooth plot? Is there any way or command to make it smooth? I can not increase the number of elements in the matrix due to limitations.

Answers (2)

Jacob Halbrooks
Jacob Halbrooks on 12 Mar 2012
It might be helpful to see a code example of what you have tried. Have you tried using SURF to create a surface plot from your data? With a SURF plot, you can use SHADING to control the color shading of your plot. For example, this produces a fairly smooth looking plot of 3D data:
surf(peaks)
shading interp

Stephen
Stephen on 12 Mar 2012
you can maybe use a cubic polynomial spline to fit your curve and then upsample it to get more points, then plot those. I don't know what you're working with though.
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Rey Kelvin Peralta
Rey Kelvin Peralta on 26 Jul 2015
Edited: Rey Kelvin Peralta on 26 Jul 2015
i did not receive any notification sir. where is it?

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