379 lines
9.0 KiB
C++
379 lines
9.0 KiB
C++
#include <gtest/gtest.h>
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#include <Unittests/unittests_common.hh>
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#include <iostream>
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namespace {
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class OpenMeshNormals : public OpenMeshBase {
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protected:
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// This function is called before each test is run
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virtual void SetUp() {
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}
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// This function is called after all tests are through
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virtual void TearDown() {
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// Do some final stuff with the member data here...
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}
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// Member already defined in OpenMeshBase
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//Mesh mesh_;
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};
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class OpenMeshNormalsPolyMesh : public OpenMeshBasePoly {
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protected:
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// This function is called before each test is run
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virtual void SetUp() {
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// Do some initial stuff with the member data here...
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}
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// This function is called after all tests are through
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virtual void TearDown() {
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// Do some final stuff with the member data here...
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}
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// Member already defined in OpenMeshBase
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//Mesh mesh_;
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};
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/*
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* ====================================================================
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* Define tests below
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* ====================================================================
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*/
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/*
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* Update normals on a single triangle
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*/
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TEST_F(OpenMeshNormals, NormalCalculationSingleFaceTriMesh) {
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mesh_.clear();
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// Add some vertices
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Mesh::VertexHandle vhandle[4];
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vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
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vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
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vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 0, 0));
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std::vector<Mesh::VertexHandle> face_vhandles;
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[2]);
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Mesh::FaceHandle fh = mesh_.add_face(face_vhandles);
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mesh_.request_vertex_normals();
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mesh_.request_halfedge_normals();
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mesh_.request_face_normals();
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mesh_.update_normals();
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EXPECT_EQ( mesh_.normal(fh)[0] ,0.0f );
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EXPECT_EQ( mesh_.normal(fh)[1] ,0.0f );
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EXPECT_EQ( mesh_.normal(fh)[2] ,1.0f );
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}
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/*
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* Update normals on a single triangle
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*/
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TEST_F(OpenMeshNormalsPolyMesh, NormalCalculationSingleFacePolyMesh) {
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mesh_.clear();
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// Add some vertices
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PolyMesh::VertexHandle vhandle[4];
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vhandle[0] = mesh_.add_vertex(PolyMesh::Point(0, 1, 0));
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vhandle[1] = mesh_.add_vertex(PolyMesh::Point(0, 0, 0));
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vhandle[2] = mesh_.add_vertex(PolyMesh::Point(1, 0, 0));
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std::vector<Mesh::VertexHandle> face_vhandles;
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[2]);
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PolyMesh::FaceHandle fh = mesh_.add_face(face_vhandles);
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mesh_.request_vertex_normals();
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mesh_.request_halfedge_normals();
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mesh_.request_face_normals();
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mesh_.update_normals();
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EXPECT_EQ( mesh_.normal(fh)[0] ,0.0f );
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EXPECT_EQ( mesh_.normal(fh)[1] ,0.0f );
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EXPECT_EQ( mesh_.normal(fh)[2] ,1.0f );
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}
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/*
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* Collapsing a tetrahedron
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*/
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TEST_F(OpenMeshNormals, NormalCalculations) {
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mesh_.clear();
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// Add some vertices
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Mesh::VertexHandle vhandle[4];
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vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
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vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
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vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
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vhandle[3] = mesh_.add_vertex(Mesh::Point(0, 0, 1));
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// Add four faces
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std::vector<Mesh::VertexHandle> face_vhandles;
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[2]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[2]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[2]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[3]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[0]);
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mesh_.add_face(face_vhandles);
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// ===============================================
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// Setup complete
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// ===============================================
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// Check one Request only vertex normals
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// Face normals are required for vertex and halfedge normals, so
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// that prevent access to non existing properties are in place
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mesh_.request_vertex_normals();
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mesh_.request_halfedge_normals();
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// Check blocks
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mesh_.update_normals();
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// Request required face normals
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mesh_.request_face_normals();
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// Automatically compute all normals
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// As only vertex normals are requested and no face normals, this will compute nothing.
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mesh_.update_normals();
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// Face normals alone
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mesh_.update_face_normals();
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// Vertex normals alone (require valid face normals)
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mesh_.update_vertex_normals();
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// Halfedge normals alone (require valid face normals)
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mesh_.update_halfedge_normals();
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}
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TEST_F(OpenMeshNormals, NormalCalculations_calc_vertex_normal_fast) {
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mesh_.clear();
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// Add some vertices
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Mesh::VertexHandle vhandle[4];
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vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
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vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
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vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
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vhandle[3] = mesh_.add_vertex(Mesh::Point(0, 0, 1));
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// Add four faces
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std::vector<Mesh::VertexHandle> face_vhandles;
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[2]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[2]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[2]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[3]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[0]);
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mesh_.add_face(face_vhandles);
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// ===============================================
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// Setup complete
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// ===============================================
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mesh_.request_vertex_normals();
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mesh_.request_halfedge_normals();
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mesh_.request_face_normals();
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Mesh::Normal normal;
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mesh_.calc_vertex_normal_fast(vhandle[2],normal);
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}
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TEST_F(OpenMeshNormals, NormalCalculations_calc_vertex_normal_correct) {
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mesh_.clear();
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// Add some vertices
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Mesh::VertexHandle vhandle[4];
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vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
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vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
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vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
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vhandle[3] = mesh_.add_vertex(Mesh::Point(0, 0, 1));
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// Add four faces
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std::vector<Mesh::VertexHandle> face_vhandles;
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[2]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[2]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[2]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[3]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[0]);
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mesh_.add_face(face_vhandles);
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// ===============================================
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// Setup complete
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// ===============================================
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mesh_.request_vertex_normals();
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mesh_.request_halfedge_normals();
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mesh_.request_face_normals();
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Mesh::Normal normal;
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mesh_.calc_vertex_normal_correct(vhandle[2],normal);
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}
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TEST_F(OpenMeshNormals, NormalCalculations_calc_vertex_normal_loop) {
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mesh_.clear();
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// Add some vertices
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Mesh::VertexHandle vhandle[4];
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vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
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vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
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vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
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vhandle[3] = mesh_.add_vertex(Mesh::Point(0, 0, 1));
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// Add four faces
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std::vector<Mesh::VertexHandle> face_vhandles;
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[2]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[0]);
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face_vhandles.push_back(vhandle[2]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[2]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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face_vhandles.clear();
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face_vhandles.push_back(vhandle[3]);
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face_vhandles.push_back(vhandle[1]);
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face_vhandles.push_back(vhandle[0]);
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mesh_.add_face(face_vhandles);
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// ===============================================
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// Setup complete
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// ===============================================
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mesh_.request_vertex_normals();
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mesh_.request_halfedge_normals();
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mesh_.request_face_normals();
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Mesh::Normal normal;
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mesh_.calc_vertex_normal_loop(vhandle[2],normal);
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}
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}
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