Coloring faces of imported meshes

Hi @marcomusy, I am trying to use your library to visualize data from thermal comfort studies. I have several manikins like the one shown below and I intend to color individual polygons based on the amount of thermal radiation incident on them (as shown in the screencapture in the second picture) The part about loading the geometry is super simple due to the methods in your vtkPlotter class. I could not find a way to interact with the individual faces of the obj through any of the methods. I also tried to understand the methods and attributes available at runtime through the debugger in Pycharm but could not get much far. Any suggestions?

Thanks, Sarith

[marcomusy]

various possibilities…: if the points are projectable onto a plane (which seems to be the case) you can discard the existing triangles and recreate a new mesh with delaunay2D or try to recreate it with recoSurface() besides you can use clean(tol=0.01) to preprocess and reduce the points and/or use smoothMLS2D() to make the surface smoother.

finally - once you have the mesh - you can color the outside and inside differently with color() and backColor()

[marcomusy]

Hi @LogWell this looks related to a transparency problem in vtk… though I must say I don’t understand exactly why that happens… This works for me:

from vtkplotter import *

settings.useDepthPeeling = True

m = load('00000.obj').texture('registered_tex_1_m.png')
m.show(axes=4)