Draw 3D mesh and overlay colour points onto the mesh

[neilsrini]

Hi

I have the points and triangulation coordinates of a 3D mesh. 

I want to draw this, and then overlay a colour scheme on the faces, based on measured values at each point, i.e. a contour map onto the 3D structure. 

Any idea how I would do this?

[Brandon Hurr]

ggplot2 doesn't really deal in 3D unless the 3rd dimension can be a color or something. You're wanting 4 dimensions (x,y,z, and color) so this is not going to work. 

A quick google got me here:

https://stackoverflow.com/questions/3979240/r-plotting-a-3d-surface-from-x-y-z

The lattice example looks useful to you. I immediately thought of rgl, but the "example" listed is very complex and I'm unsure how to color the faces of the polygons. 

Good luck. 

B

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[neilsrini]

Hi I solved the problem using

plotly's link to R-studio

for those who this may benefit here is a good piece of code that may help

http://moderndata.plot.ly/trisurf-plots-in-r-using-plotly/

thanks

Neil