Interpolation of graphical output in color-coded scatterplot
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I have some positional (x,y,z coordinate) data with corresponding activation time value (of signal propagation through the heart), which I have assigned color values (not sure if relevant- but did this by dividing the activation time value range into 8 equal portions and assigned a different color to each). I then graphed the data as a 3 dimensional scatterplot, which each point displaying the color assigned to it. I have attached a file detailing the code I used for color assigning.
I would now like to create a graphical output with a smoother surface that is easier for visualization. Ideally I would like the interpolation to be done on the scatterplot. I also want to keep the same exact color scheme displayed in the original scatterplot of raw data. I have been tinkering with ways to smooth out the surface using 'trisurf' and a few other functions, but cannot seem to be able to preserve the colors I assigned in the original scatter plot. Any help with this task would be greatly appreciated! Thank you.