Added HalfedgeLoop iterator to iterate over loops of halfedges (faces, hoes). closes #1979
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@988 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Jan Möbius
229
src/Unittests/unittests_trimesh_circulator_halfedge_loop.cc
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229
src/Unittests/unittests_trimesh_circulator_halfedge_loop.cc
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#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 OpenMeshTrimeshCirculatorHalfedgeLoop : 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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/*
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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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* Small HalfedgeLoop Test without holes in it
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*/
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TEST_F(OpenMeshTrimeshCirculatorHalfedgeLoop, HalfedgeLoopWithFace) {
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mesh_.clear();
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// Add some vertices
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Mesh::VertexHandle vhandle[6];
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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(1, 0, 0));
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vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
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vhandle[3] = mesh_.add_vertex(Mesh::Point(3, 0, 0));
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vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
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vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
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// Add three 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[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[2]);
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face_vhandles.push_back(vhandle[3]);
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face_vhandles.push_back(vhandle[4]);
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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[1]);
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face_vhandles.push_back(vhandle[5]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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/* Test setup:
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*
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* edge x => halfedge x/x+1
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* i.e. edge 0 => halfedge 0/1
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*
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* 0 --4--- 2 ------ 4
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* \ / \ /
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* 0 0 2 6 2 /
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* \ / 1 \ /
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* 1 ---8--- 3
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* \ /
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* \ 3 /
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* \ /
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* \ /
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* 5
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*/
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//circle around face 1
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Mesh::HalfedgeLoopIter hl_it = mesh_.hl_begin(mesh_.halfedge_handle(3));
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Mesh::HalfedgeLoopIter hl_end = mesh_.hl_end(mesh_.halfedge_handle(3));
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EXPECT_EQ(3, hl_it->idx() ) << "Index wrong in HalfedgeLoopIter at initialization";
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EXPECT_TRUE(hl_it.is_valid()) << "Iterator invalid in HalfedgeLoopIter at initialization";
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++hl_it;
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EXPECT_EQ(6, hl_it->idx() ) << "Index wrong in HalfedgeLoopIter at step 1";
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EXPECT_TRUE(hl_it.is_valid()) << "Iterator invalid in HalfedgeLoopIter at step 1";
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++hl_it;
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EXPECT_EQ(8, hl_it->idx() ) << "Index wrong in HalfedgeLoopIter at step 2";
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EXPECT_TRUE(hl_it.is_valid()) << "Iterator invalid in HalfedgeLoopIter at step 2";
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++hl_it;
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EXPECT_EQ(3, hl_it->idx() ) << "Index wrong in HalfedgeLoopIter at step 3";
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EXPECT_FALSE( hl_it.is_valid() ) << "Iterator invalid in HalfedgeLoopIter at end";
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EXPECT_TRUE( hl_it == hl_end ) << "End iterator for HalfedgeLoopIter not matching";
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//check const iterators
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Mesh::HalfedgeLoopIter chl_it = mesh_.chl_begin(mesh_.halfedge_handle(3));
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Mesh::HalfedgeLoopIter chl_end = mesh_.chl_end(mesh_.halfedge_handle(3));
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EXPECT_EQ(3, chl_it->idx() ) << "Index wrong in ConstHalfedgeLoopIter at initialization";
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EXPECT_TRUE(chl_it.is_valid()) << "Iterator invalid in ConstHalfedgeLoopIter at initialization";
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++chl_it;
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EXPECT_EQ(6, chl_it->idx() ) << "Index wrong in ConstHalfedgeLoopIter at step 1";
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EXPECT_TRUE(chl_it.is_valid()) << "Iterator invalid in ConstHalfedgeLoopIter at step 1";
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++chl_it;
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EXPECT_EQ(8, chl_it->idx() ) << "Index wrong in ConstHalfedgeLoopIter at step 2";
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EXPECT_TRUE(chl_it.is_valid()) << "Iterator invalid in ConstHalfedgeLoopIter at step 2";
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++chl_it;
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EXPECT_EQ(3, chl_it->idx() ) << "Index wrong in ConstHalfedgeLoopIter at step 3";
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EXPECT_FALSE( chl_it.is_valid() ) << "Iterator invalid in ConstHalfedgeLoopIter at end";
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EXPECT_TRUE( chl_it == chl_end ) << "End iterator for ConstHalfedgeLoopIter not matching";
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}
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/*
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* Small HalfedgeLoop Test around a boundary
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*/
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TEST_F(OpenMeshTrimeshCirculatorHalfedgeLoop, HalfedgeLoopWithoutFace) {
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mesh_.clear();
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// Add some vertices
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Mesh::VertexHandle vhandle[6];
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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(1, 0, 0));
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vhandle[2] = mesh_.add_vertex(Mesh::Point(2, 1, 0));
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vhandle[3] = mesh_.add_vertex(Mesh::Point(3, 0, 0));
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vhandle[4] = mesh_.add_vertex(Mesh::Point(4, 1, 0));
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vhandle[5] = mesh_.add_vertex(Mesh::Point(2,-1, 0));
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// Add three 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[2]);
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face_vhandles.push_back(vhandle[3]);
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face_vhandles.push_back(vhandle[4]);
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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[1]);
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face_vhandles.push_back(vhandle[5]);
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face_vhandles.push_back(vhandle[3]);
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mesh_.add_face(face_vhandles);
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/* Test setup:
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*
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* H => hole (no face)
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* fx => face #x
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* edge 0 => halfedge 0/1
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*
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* 0 --4--- 2 -10--- 4
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* \ / \ /
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* 0 f0 2 6 f2 8
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* \ / H \ /
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* 1 ---16---3
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* \ /
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* 12 f3 14
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* \ /
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* \ /
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* 5
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*/
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//circle around the hole
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Mesh::HalfedgeLoopIter hl_it = mesh_.hl_begin(mesh_.halfedge_handle(3));
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Mesh::HalfedgeLoopIter hl_end = mesh_.hl_end(mesh_.halfedge_handle(3));
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EXPECT_EQ(3, hl_it->idx() ) << "Index wrong in HalfedgeLoopIter at initialization";
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EXPECT_TRUE(hl_it.is_valid()) << "Iterator invalid in HalfedgeLoopIter at initialization";
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++hl_it;
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EXPECT_EQ(17, hl_it->idx() ) << "Index wrong in HalfedgeLoopIter at step 1";
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EXPECT_TRUE(hl_it.is_valid()) << "Iterator invalid in HalfedgeLoopIter at step 1";
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++hl_it;
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EXPECT_EQ(7, hl_it->idx() ) << "Index wrong in HalfedgeLoopIter at step 2";
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EXPECT_TRUE(hl_it.is_valid()) << "Iterator invalid in HalfedgeLoopIter at step 2";
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++hl_it;
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EXPECT_EQ(3, hl_it->idx() ) << "Index wrong in HalfedgeLoopIter at step 3";
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EXPECT_FALSE( hl_it.is_valid() ) << "Iterator invalid in HalfedgeLoopIter at end";
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EXPECT_TRUE( hl_it == hl_end ) << "End iterator for HalfedgeLoopIter not matching";
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//check const iterators
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Mesh::HalfedgeLoopIter chl_it = mesh_.chl_begin(mesh_.halfedge_handle(3));
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Mesh::HalfedgeLoopIter chl_end = mesh_.chl_end(mesh_.halfedge_handle(3));
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EXPECT_EQ(3, chl_it->idx() ) << "Index wrong in ConstHalfedgeLoopIter at initialization";
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EXPECT_TRUE(chl_it.is_valid()) << "Iterator invalid in ConstHalfedgeLoopIter at initialization";
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++chl_it;
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EXPECT_EQ(17, chl_it->idx() ) << "Index wrong in ConstHalfedgeLoopIter at step 1";
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EXPECT_TRUE(chl_it.is_valid()) << "Iterator invalid in ConstHalfedgeLoopIter at step 1";
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++chl_it;
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EXPECT_EQ(7, chl_it->idx() ) << "Index wrong in ConstHalfedgeLoopIter at step 2";
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EXPECT_TRUE(chl_it.is_valid()) << "Iterator invalid in ConstHalfedgeLoopIter at step 2";
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++chl_it;
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EXPECT_EQ(3, chl_it->idx() ) << "Index wrong in ConstHalfedgeLoopIter at step 3";
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EXPECT_FALSE( chl_it.is_valid() ) << "Iterator invalid in ConstHalfedgeLoopIter at end";
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EXPECT_TRUE( chl_it == chl_end ) << "End iterator for ConstHalfedgeLoopIter not matching";
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}
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}
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