86 lines
2.2 KiB
Python
Executable File
86 lines
2.2 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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# Load a mesh in OFF format
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igl.readOFF(TUTORIAL_SHARED_PATH + "bunny.off", V, F)
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# Find the bounding box
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m = V.colwiseMinCoeff()
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M = V.colwiseMaxCoeff()
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# Corners of the bounding box
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V_box = igl.eigen.MatrixXd(
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[
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[m[0, 0], m[0, 1], m[0, 2]],
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[M[0, 0], m[0, 1], m[0, 2]],
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[M[0, 0], M[0, 1], m[0, 2]],
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[m[0, 0], M[0, 1], m[0, 2]],
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[m[0, 0], m[0, 1], M[0, 2]],
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[M[0, 0], m[0, 1], M[0, 2]],
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[M[0, 0], M[0, 1], M[0, 2]],
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[m[0, 0], M[0, 1], M[0, 2]]
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]
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)
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E_box = igl.eigen.MatrixXd(
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[
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[0, 1],
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[1, 2],
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[2, 3],
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[3, 0],
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[4, 5],
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[5, 6],
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[6, 7],
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[7, 4],
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[0, 4],
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[1, 5],
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[2, 6],
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[7, 3]
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]
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).castint()
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# Plot the mesh
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viewer = igl.glfw.Viewer()
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viewer.data().set_mesh(V, F)
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# Plot the corners of the bounding box as points
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viewer.data().add_points(V_box, igl.eigen.MatrixXd([[1, 0, 0]]))
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# Plot the edges of the bounding box
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for i in range(0, E_box.rows()):
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viewer.data().add_edges(
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V_box.row(E_box[i, 0]),
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V_box.row(E_box[i, 1]),
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igl.eigen.MatrixXd([[1, 0, 0]]))
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# Plot labels with the coordinates of bounding box vertices
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l1 = 'x: ' + str(m[0, 0]) + ' y: ' + str(m[0, 1]) + ' z: ' + str(m[0, 2])
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viewer.data().add_label(m.transpose(), l1)
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l2 = 'x: ' + str(M[0, 0]) + ' y: ' + str(M[0, 1]) + ' z: ' + str(M[0, 2])
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viewer.data().add_label(M.transpose(), l2)
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# Launch the viewer
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viewer.launch()
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