40 lines
852 B
Python
40 lines
852 B
Python
from __future__ import print_function
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import igl
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from iglhelpers import *
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V = igl.eigen.MatrixXd()
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F = igl.eigen.MatrixXi()
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igl.readOFF("../tutorial/shared/decimated-knight.off",V,F)
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temp = igl.eigen.MatrixXd()
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# 100 random indicies into rows of F
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temp.setRandom(100,1)
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I = igl.eigen.MatrixXi()
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igl.floor((0.5*(temp+1.)*F.rows()),I);
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# 50 random indicies into rows of I
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temp.setRandom(50,1)
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J = igl.eigen.MatrixXi()
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igl.floor((0.5*(temp+1.)*I.rows()),J)
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# K = I(J);
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K = igl.eigen.MatrixXi()
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igl.slice(I,J,K)
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# default green for all faces
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C = p2e(np.array([[0.4,0.8,0.3]])).replicate(F.rows(),1)
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# Red for each in K
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R = p2e(np.array([[1.0,0.3,0.3]])).replicate(K.rows(),1)
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# C(K,:) = R
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igl.slice_into(R,K,1,C)
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# Plot the mesh with pseudocolors
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viewer = igl.viewer.Viewer()
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viewer.data.set_mesh(V, F)
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viewer.data.set_colors(C)
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viewer.launch()
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