53 lines
1.5 KiB
Python
Executable File
53 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# This file is part of libigl, a simple c++ geometry processing library.
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#
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# Copyright (C) 2017 Sebastian Koch <s.koch@tu-berlin.de> and Daniele Panozzo <daniele.panozzo@gmail.com>
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#
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# This Source Code Form is subject to the terms of the Mozilla Public License
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# v. 2.0. If a copy of the MPL was not distributed with this file, You can
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# obtain one at http://mozilla.org/MPL/2.0/.
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import sys, os
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# Add the igl library to the modules search path
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sys.path.insert(0, os.getcwd() + "/../")
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import pyigl as igl
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from shared import TUTORIAL_SHARED_PATH, check_dependencies
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dependencies = ["glfw"]
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check_dependencies(dependencies)
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V = igl.eigen.MatrixXd()
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F = igl.eigen.MatrixXi()
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igl.readOFF(TUTORIAL_SHARED_PATH + "decimated-knight.off", V, F)
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# 100 random indices into rows of F
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I = igl.eigen.MatrixXi()
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igl.floor((0.5 * (igl.eigen.MatrixXd.Random(100, 1) + 1.) * F.rows()), I)
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# 50 random indices into rows of I
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J = igl.eigen.MatrixXi()
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igl.floor((0.5 * (igl.eigen.MatrixXd.Random(50, 1) + 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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C = igl.eigen.MatrixXd([[0.4, 0.8, 0.3]]).replicate(F.rows(), 1)
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# Red for each in K
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R = igl.eigen.MatrixXd([[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.glfw.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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