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51 lines
1.0 KiB
51 lines
1.0 KiB
#include <test_common.h>
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#include <igl/euler_characteristic.h>
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#include <igl/read_triangle_mesh.h>
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#include <igl/triangulated_grid.h>
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#include <igl/matlab_format.h>
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#include <iostream>
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TEST_CASE("euler_characteristic: cube", "[igl]" )
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{
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Eigen::MatrixXi F(12,3);
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F <<
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0,1,2,
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0,2,3,
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0,4,5,
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0,5,1,
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0,3,7,
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0,7,4,
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6,5,4,
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6,4,7,
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6,7,3,
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6,3,2,
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6,2,1,
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6,1,5;
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const int chi = igl::euler_characteristic(F);
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REQUIRE(chi == 2);
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}
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TEST_CASE("euler_characteristic: triangle", "[igl]" )
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{
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Eigen::MatrixXi F(1,3);
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F << 0,1,2;
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const int chi = igl::euler_characteristic(F);
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REQUIRE(chi == 1);
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}
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TEST_CASE("euler_characteristic: square", "[igl]" )
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{
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Eigen::MatrixXi F;
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igl::triangulated_grid(3,3,F);
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const int chi = igl::euler_characteristic(F);
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REQUIRE(chi == 1);
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}
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TEST_CASE("euler_characteristic: torus", "[igl]" )
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{
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Eigen::MatrixXd V;
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Eigen::MatrixXi F;
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igl::read_triangle_mesh(test_common::data_path("TinyTorus.obj"), V, F);
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const int chi = igl::euler_characteristic(F);
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REQUIRE(chi == 0);
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}
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