Files
igl/python/tutorial/301_Slice.py
T
Unknown 2ddb11aa6b Misc. typos
Most are non-user facing. Hope this is not too annoying of a PR. 

Used `codespell -d -q 3 --skip="*.po,*.ts,./.git,./external"` to locate typos

Former-commit-id: dc31807ff5
2018-01-14 06:07:31 -05:00

51 lines
1.5 KiB
Python

# This file is part of libigl, a simple c++ geometry processing library.
#
# Copyright (C) 2017 Sebastian Koch <s.koch@tu-berlin.de> and Daniele Panozzo <daniele.panozzo@gmail.com>
#
# This Source Code Form is subject to the terms of the Mozilla Public License
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at http://mozilla.org/MPL/2.0/.
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)
# 100 random indices into rows of F
I = igl.eigen.MatrixXi()
igl.floor((0.5 * (igl.eigen.MatrixXd.Random(100, 1) + 1.) * F.rows()), I)
# 50 random indices into rows of I
J = igl.eigen.MatrixXi()
igl.floor((0.5 * (igl.eigen.MatrixXd.Random(50, 1) + 1.) * I.rows()), J)
# K = I(J);
K = igl.eigen.MatrixXi()
igl.slice(I, J, K)
# default green for all faces
# C = p2e(np.array([[0.4,0.8,0.3]])).replicate(F.rows(),1)
C = igl.eigen.MatrixXd([[0.4, 0.8, 0.3]]).replicate(F.rows(), 1)
# Red for each in K
R = igl.eigen.MatrixXd([[1.0, 0.3, 0.3]]).replicate(K.rows(), 1)
# C(K,:) = R
igl.slice_into(R, K, 1, C)
# Plot the mesh with pseudocolors
viewer = igl.viewer.Viewer()
viewer.data.set_mesh(V, F)
viewer.data.set_colors(C)
viewer.launch()