Possibility of per cell point colors?

[johncbowers]

I have data that is defined on a per cell per point basis on a mesh, which may be discontinuous at the edges between cells, but is linearly interpolated across each cell of the mesh that I want to visualize. The same point may be one color in one of its incident cells but a different color altogether in another of its incident cells, but a cell will not have a constant color. Is it possible to color each point of each cell of a mesh with a different color to get a per cell version of the linear interpolation that point colors provides? I do not see this in the API, but I may be missing it.

[marcomusy]

You have all the possibilities:

from vedo import *

settings.interpolateScalarsBeforeMapping = True

m = Sphere(res=5).lw(1)

scalars = m.points()[:,2]
m.cmap("bone", scalars, on="points").addScalarBar()

# scalars = m.cellCenters()[:,2]
# m.cmap("rainbow", scalars, on="cells").addScalarBar()

show(m, axes=1)

the interpolateScalarsBeforeMapping flag decides whether the interpolation is made purely on the rgb colors of a face vertices (False), or based on the color mapping (True). In the above example the difference is negligible but should become more evident in case of discontinuities.