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- import sys, os
- # Add the igl library to the modules search path
- sys.path.insert(0, os.getcwd() + "/../")
- import pyigl as igl
- from shared import TUTORIAL_SHARED_PATH, check_dependencies
- dependencies = ["viewer"]
- check_dependencies(dependencies)
- V = igl.eigen.MatrixXd()
- F = igl.eigen.MatrixXi()
- igl.readOFF(TUTORIAL_SHARED_PATH + "decimated-knight.off", V, F)
- # Sort barycenters lexicographically
- BC = igl.eigen.MatrixXd()
- sorted_BC = igl.eigen.MatrixXd()
- igl.barycenter(V, F, BC)
- I = igl.eigen.MatrixXi()
- J = igl.eigen.MatrixXi()
- # sorted_BC = BC(I,:)
- igl.sortrows(BC, True, sorted_BC, I)
- # Get sorted "place" from sorted indices
- J.resize(I.rows(), 1)
- # J(I) = 1:numel(I)
- igl.slice_into(igl.coloni(0, I.size() - 1), I, J)
- # Pseudo-color based on sorted place
- C = igl.eigen.MatrixXd()
- igl.jet(J.castdouble(), True, C)
- # Plot the mesh with pseudocolors
- viewer = igl.viewer.Viewer()
- viewer.data.set_mesh(V, F)
- viewer.data.set_colors(C)
- viewer.launch()
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