I am learning to use Plots.jl these days, to visualise output from FEM analysis.
One thing I would like to be able to do is provide 3 “nodes” (in 2D, in my case, but 3D is an obvious extension) and 3 values or colors, and get a triangle, colored by linear interpolation. My visualisation will require hundreds or thousands of such patches.
In Matlab, this type of functionality is provided by “patch()”.
Is there a way to do this in Plots? If not, do you know whether GR could do this?