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33 lines
1.0 KiB
33 lines
1.0 KiB
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2018 Alec Jacobson <alecjacobson@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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#include <test_common.h>
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#include <igl/accumarray.h>
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TEST_CASE("accumarray: matlab_help", "[igl]")
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{
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const Eigen::VectorXd V =
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(Eigen::VectorXd(5) << 101,102,103,104,105).finished();
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const Eigen::VectorXi S =
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(Eigen::VectorXi(5) << 0,2,3,2,3).finished();
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Eigen::VectorXd A;
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igl::accumarray(S,V,A);
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const Eigen::VectorXd Agt =
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(Eigen::VectorXd(4) << 101,0,206,208).finished();
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test_common::assert_eq(A,Agt);
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}
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TEST_CASE("accumarray: scalar", "[igl]")
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{
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const auto n =
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(Eigen::VectorXi(5) << 1,2,2,4,5).finished();
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Eigen::VectorXi C;
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igl::accumarray(n,1,C);
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const auto Cgt =
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(Eigen::VectorXi(6) << 0,1,2,0,1,1).finished();
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test_common::assert_eq(C,Cgt);
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}
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