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test_triangle_mesh.cpp
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/*
* Software License Agreement (BSD License)
*
* Point Cloud Library (PCL) - www.pointclouds.org
* Copyright (c) 2009-2012, Willow Garage, Inc.
* Copyright (c) 2012-, Open Perception, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the copyright holder(s) nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $Id$
*
*/
#include <vector>
#include <pcl/test/gtest.h>
#include <pcl/geometry/triangle_mesh.h>
#include "test_mesh_common_functions.h"
////////////////////////////////////////////////////////////////////////////////
using VertexIndex = pcl::geometry::VertexIndex;
using HalfEdgeIndex = pcl::geometry::HalfEdgeIndex;
using EdgeIndex = pcl::geometry::EdgeIndex;
using FaceIndex = pcl::geometry::FaceIndex;
using VertexIndices = std::vector<VertexIndex>;
using HalfEdgeIndices = std::vector<HalfEdgeIndex>;
using FaceIndices = std::vector<FaceIndex>;
template <bool IsManifoldT>
struct MeshTraits
{
using VertexData = int;
using HalfEdgeData = pcl::geometry::NoData;
using EdgeData = pcl::geometry::NoData;
using FaceData = pcl::geometry::NoData;
using IsManifold = std::integral_constant <bool, IsManifoldT>;
};
using ManifoldTriangleMesh = pcl::geometry::TriangleMesh<MeshTraits<true> >;
using NonManifoldTriangleMesh = pcl::geometry::TriangleMesh<MeshTraits<false> >;
using TriangleMeshTypes = testing::Types <ManifoldTriangleMesh, NonManifoldTriangleMesh>;
template <class MeshT>
class TestTriangleMesh : public testing::Test
{
protected:
using Mesh = MeshT;
};
TYPED_TEST_SUITE (TestTriangleMesh, TriangleMeshTypes);
////////////////////////////////////////////////////////////////////////////////
TYPED_TEST (TestTriangleMesh, CorrectMeshTag)
{
using Mesh = typename TestFixture::Mesh;
using MeshTag = typename Mesh::MeshTag;
ASSERT_EQ (typeid (pcl::geometry::TriangleMeshTag), typeid (MeshTag));
}
////////////////////////////////////////////////////////////////////////////////
TYPED_TEST (TestTriangleMesh, CorrectNumberOfVertices)
{
// Make sure that only quads can be added
using Mesh = typename TestFixture::Mesh;
for (unsigned int n=1; n<=5; ++n)
{
Mesh mesh;
VertexIndices vi;
for (unsigned int i=0; i<n; ++i)
{
vi.emplace_back(i);
mesh.addVertex (i);
}
const FaceIndex index = mesh.addFace (vi);
if (n==3) EXPECT_TRUE (index.isValid ()) << "Number of vertices in the face: " << n;
else EXPECT_FALSE (index.isValid ()) << "Number of vertices in the face: " << n;
}
}
////////////////////////////////////////////////////////////////////////////////
TYPED_TEST (TestTriangleMesh, OneTriangle)
{
using Mesh = typename TestFixture::Mesh;
// 2 //
// / \ //
// 0 - 1 //
Mesh mesh;
VertexIndices vi;
for (unsigned int i=0; i<3; ++i) vi.push_back (mesh.addVertex (i));
const FaceIndex fi = mesh.addFace (vi);
ASSERT_TRUE (fi.isValid ());
const HalfEdgeIndex he_10 = mesh.getOutgoingHalfEdgeIndex (vi [1]);
const HalfEdgeIndex he_21 = mesh.getOutgoingHalfEdgeIndex (vi [2]);
const HalfEdgeIndex he_02 = mesh.getOutgoingHalfEdgeIndex (vi [0]);
const HalfEdgeIndex he_01 = mesh.getOppositeHalfEdgeIndex (he_10);
const HalfEdgeIndex he_12 = mesh.getOppositeHalfEdgeIndex (he_21);
const HalfEdgeIndex he_20 = mesh.getOppositeHalfEdgeIndex (he_02);
EXPECT_TRUE (checkHalfEdge (mesh, he_10, vi [1], vi[0]));
EXPECT_TRUE (checkHalfEdge (mesh, he_21, vi [2], vi[1]));
EXPECT_TRUE (checkHalfEdge (mesh, he_02, vi [0], vi[2]));
EXPECT_TRUE (checkHalfEdge (mesh, he_01, vi [0], vi[1]));
EXPECT_TRUE (checkHalfEdge (mesh, he_12, vi [1], vi[2]));
EXPECT_TRUE (checkHalfEdge (mesh, he_20, vi [2], vi[0]));
EXPECT_EQ (he_01, mesh.getIncomingHalfEdgeIndex (vi [1]));
EXPECT_EQ (he_12, mesh.getIncomingHalfEdgeIndex (vi [2]));
EXPECT_EQ (he_20, mesh.getIncomingHalfEdgeIndex (vi [0]));
EXPECT_EQ (he_12, mesh.getNextHalfEdgeIndex (he_01));
EXPECT_EQ (he_20, mesh.getNextHalfEdgeIndex (he_12));
EXPECT_EQ (he_01, mesh.getNextHalfEdgeIndex (he_20));
EXPECT_EQ (he_20, mesh.getPrevHalfEdgeIndex (he_01));
EXPECT_EQ (he_01, mesh.getPrevHalfEdgeIndex (he_12));
EXPECT_EQ (he_12, mesh.getPrevHalfEdgeIndex (he_20));
EXPECT_EQ (he_02, mesh.getNextHalfEdgeIndex (he_10));
EXPECT_EQ (he_21, mesh.getNextHalfEdgeIndex (he_02));
EXPECT_EQ (he_10, mesh.getNextHalfEdgeIndex (he_21));
EXPECT_EQ (he_21, mesh.getPrevHalfEdgeIndex (he_10));
EXPECT_EQ (he_10, mesh.getPrevHalfEdgeIndex (he_02));
EXPECT_EQ (he_02, mesh.getPrevHalfEdgeIndex (he_21));
EXPECT_EQ (fi, mesh.getFaceIndex (he_01));
EXPECT_EQ (fi, mesh.getFaceIndex (he_12));
EXPECT_EQ (fi, mesh.getFaceIndex (he_20));
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_01).isValid ());
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_12).isValid ());
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_20).isValid ());
EXPECT_FALSE (mesh.getFaceIndex (he_10).isValid ());
EXPECT_FALSE (mesh.getFaceIndex (he_21).isValid ());
EXPECT_FALSE (mesh.getFaceIndex (he_02).isValid ());
EXPECT_EQ (fi, mesh.getOppositeFaceIndex (he_10));
EXPECT_EQ (fi, mesh.getOppositeFaceIndex (he_21));
EXPECT_EQ (fi, mesh.getOppositeFaceIndex (he_02));
EXPECT_EQ (he_20, mesh.getInnerHalfEdgeIndex (fi));
EXPECT_EQ (he_02, mesh.getOuterHalfEdgeIndex (fi));
EXPECT_FALSE (mesh.isBoundary (he_01));
EXPECT_FALSE (mesh.isBoundary (he_12));
EXPECT_FALSE (mesh.isBoundary (he_20));
EXPECT_TRUE (mesh.isBoundary (he_10));
EXPECT_TRUE (mesh.isBoundary (he_21));
EXPECT_TRUE (mesh.isBoundary (he_02));
EXPECT_TRUE (mesh.isBoundary (vi [0]));
EXPECT_TRUE (mesh.isBoundary (vi [1]));
EXPECT_TRUE (mesh.isBoundary (vi [2]));
EXPECT_TRUE (mesh.isBoundary (fi));
}
////////////////////////////////////////////////////////////////////////////////
TYPED_TEST (TestTriangleMesh, TwoTriangles)
{
using Mesh = typename TestFixture::Mesh;
// 3 - 2 //
// \ / \ //
// 0 - 1 //
Mesh mesh;
VertexIndex vi_0 = mesh.addVertex (0);
VertexIndex vi_1 = mesh.addVertex (1);
VertexIndex vi_2 = mesh.addVertex (2);
VertexIndex vi_3 = mesh.addVertex (3);
// First face
VertexIndices vi;
vi.push_back (vi_0);
vi.push_back (vi_1);
vi.push_back (vi_2);
const FaceIndex fi_0 = mesh.addFace (vi);
ASSERT_TRUE (fi_0.isValid ());
const HalfEdgeIndex he_10 = mesh.getOutgoingHalfEdgeIndex (vi_1);
const HalfEdgeIndex he_21 = mesh.getOutgoingHalfEdgeIndex (vi_2);
const HalfEdgeIndex he_02 = mesh.getOutgoingHalfEdgeIndex (vi_0);
const HalfEdgeIndex he_01 = mesh.getOppositeHalfEdgeIndex (he_10);
const HalfEdgeIndex he_12 = mesh.getOppositeHalfEdgeIndex (he_21);
const HalfEdgeIndex he_20 = mesh.getOppositeHalfEdgeIndex (he_02);
// Second face
vi.clear ();
vi.push_back (vi_0);
vi.push_back (vi_2);
vi.push_back (vi_3);
const FaceIndex fi_1 = mesh.addFace (vi);
ASSERT_TRUE (fi_1.isValid ());
const HalfEdgeIndex he_03 = mesh.getOutgoingHalfEdgeIndex (vi_0);
const HalfEdgeIndex he_32 = mesh.getOutgoingHalfEdgeIndex (vi_3);
const HalfEdgeIndex he_30 = mesh.getOppositeHalfEdgeIndex (he_03);
const HalfEdgeIndex he_23 = mesh.getOppositeHalfEdgeIndex (he_32);
// Tests
EXPECT_TRUE (checkHalfEdge (mesh, he_01, vi_0, vi_1));
EXPECT_TRUE (checkHalfEdge (mesh, he_12, vi_1, vi_2));
EXPECT_TRUE (checkHalfEdge (mesh, he_20, vi_2, vi_0));
EXPECT_TRUE (checkHalfEdge (mesh, he_02, vi_0, vi_2));
EXPECT_TRUE (checkHalfEdge (mesh, he_23, vi_2, vi_3));
EXPECT_TRUE (checkHalfEdge (mesh, he_30, vi_3, vi_0));
EXPECT_TRUE (checkHalfEdge (mesh, he_03, vi_0, vi_3));
EXPECT_TRUE (checkHalfEdge (mesh, he_32, vi_3, vi_2));
EXPECT_TRUE (checkHalfEdge (mesh, he_21, vi_2, vi_1));
EXPECT_TRUE (checkHalfEdge (mesh, he_10, vi_1, vi_0));
EXPECT_EQ (he_12, mesh.getNextHalfEdgeIndex (he_01));
EXPECT_EQ (he_20, mesh.getNextHalfEdgeIndex (he_12));
EXPECT_EQ (he_01, mesh.getNextHalfEdgeIndex (he_20));
EXPECT_EQ (he_20, mesh.getPrevHalfEdgeIndex (he_01));
EXPECT_EQ (he_01, mesh.getPrevHalfEdgeIndex (he_12));
EXPECT_EQ (he_12, mesh.getPrevHalfEdgeIndex (he_20));
EXPECT_EQ (he_23, mesh.getNextHalfEdgeIndex (he_02));
EXPECT_EQ (he_30, mesh.getNextHalfEdgeIndex (he_23));
EXPECT_EQ (he_02, mesh.getNextHalfEdgeIndex (he_30));
EXPECT_EQ (he_30, mesh.getPrevHalfEdgeIndex (he_02));
EXPECT_EQ (he_02, mesh.getPrevHalfEdgeIndex (he_23));
EXPECT_EQ (he_23, mesh.getPrevHalfEdgeIndex (he_30));
EXPECT_EQ (he_03, mesh.getNextHalfEdgeIndex (he_10));
EXPECT_EQ (he_32, mesh.getNextHalfEdgeIndex (he_03));
EXPECT_EQ (he_21, mesh.getNextHalfEdgeIndex (he_32));
EXPECT_EQ (he_10, mesh.getNextHalfEdgeIndex (he_21));
EXPECT_EQ (he_21, mesh.getPrevHalfEdgeIndex (he_10));
EXPECT_EQ (he_10, mesh.getPrevHalfEdgeIndex (he_03));
EXPECT_EQ (he_03, mesh.getPrevHalfEdgeIndex (he_32));
EXPECT_EQ (he_32, mesh.getPrevHalfEdgeIndex (he_21));
EXPECT_EQ (fi_0, mesh.getFaceIndex (he_01));
EXPECT_EQ (fi_0, mesh.getFaceIndex (he_12));
EXPECT_EQ (fi_0, mesh.getFaceIndex (he_20));
EXPECT_EQ (fi_1, mesh.getFaceIndex (he_02));
EXPECT_EQ (fi_1, mesh.getFaceIndex (he_23));
EXPECT_EQ (fi_1, mesh.getFaceIndex (he_30));
EXPECT_FALSE (mesh.getFaceIndex (he_10).isValid ());
EXPECT_FALSE (mesh.getFaceIndex (he_03).isValid ());
EXPECT_FALSE (mesh.getFaceIndex (he_32).isValid ());
EXPECT_FALSE (mesh.getFaceIndex (he_21).isValid ());
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_01).isValid ());
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_12).isValid ());
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_23).isValid ());
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_30).isValid ());
EXPECT_EQ (fi_0, mesh.getOppositeFaceIndex (he_21));
EXPECT_EQ (fi_0, mesh.getOppositeFaceIndex (he_10));
EXPECT_EQ (fi_1, mesh.getOppositeFaceIndex (he_03));
EXPECT_EQ (fi_1, mesh.getOppositeFaceIndex (he_32));
EXPECT_EQ (he_20, mesh.getInnerHalfEdgeIndex (fi_0));
EXPECT_EQ (he_30, mesh.getInnerHalfEdgeIndex (fi_1));
EXPECT_EQ (he_02, mesh.getOuterHalfEdgeIndex (fi_0));
EXPECT_EQ (he_03, mesh.getOuterHalfEdgeIndex (fi_1));
EXPECT_FALSE (mesh.isBoundary (he_01));
EXPECT_FALSE (mesh.isBoundary (he_12));
EXPECT_FALSE (mesh.isBoundary (he_20));
EXPECT_FALSE (mesh.isBoundary (he_02));
EXPECT_FALSE (mesh.isBoundary (he_23));
EXPECT_FALSE (mesh.isBoundary (he_30));
EXPECT_TRUE (mesh.isBoundary (he_10));
EXPECT_TRUE (mesh.isBoundary (he_03));
EXPECT_TRUE (mesh.isBoundary (he_32));
EXPECT_TRUE (mesh.isBoundary (he_21));
EXPECT_TRUE (mesh.isBoundary (vi_0));
EXPECT_TRUE (mesh.isBoundary (vi_1));
EXPECT_TRUE (mesh.isBoundary (vi_2));
EXPECT_TRUE (mesh.isBoundary (vi_3));
EXPECT_TRUE (mesh.isBoundary (fi_0));
EXPECT_TRUE (mesh.isBoundary (fi_1));
}
////////////////////////////////////////////////////////////////////////////////
TYPED_TEST (TestTriangleMesh, ThreeTriangles)
{
using Mesh = typename TestFixture::Mesh;
// 1 ----- 3 //
// \ \ / / //
// \ 0 / //
// \ | / //
// 2 //
Mesh mesh;
VertexIndex vi_0 = mesh.addVertex (0);
VertexIndex vi_1 = mesh.addVertex (1);
VertexIndex vi_2 = mesh.addVertex (2);
VertexIndex vi_3 = mesh.addVertex (3);
// First face
VertexIndices vi;
vi.push_back (vi_0);
vi.push_back (vi_1);
vi.push_back (vi_2);
const FaceIndex fi_0 = mesh.addFace (vi);
ASSERT_TRUE (fi_0.isValid ());
const HalfEdgeIndex he_10 = mesh.getOutgoingHalfEdgeIndex (vi_1);
const HalfEdgeIndex he_21 = mesh.getOutgoingHalfEdgeIndex (vi_2);
const HalfEdgeIndex he_02 = mesh.getOutgoingHalfEdgeIndex (vi_0);
const HalfEdgeIndex he_01 = mesh.getOppositeHalfEdgeIndex (he_10);
const HalfEdgeIndex he_12 = mesh.getOppositeHalfEdgeIndex (he_21);
const HalfEdgeIndex he_20 = mesh.getOppositeHalfEdgeIndex (he_02);
// Second face
vi.clear ();
vi.push_back (vi_0);
vi.push_back (vi_2);
vi.push_back (vi_3);
const FaceIndex fi_1 = mesh.addFace (vi);
ASSERT_TRUE (fi_1.isValid ());
const HalfEdgeIndex he_03 = mesh.getOutgoingHalfEdgeIndex (vi_0);
const HalfEdgeIndex he_32 = mesh.getOutgoingHalfEdgeIndex (vi_3);
const HalfEdgeIndex he_30 = mesh.getOppositeHalfEdgeIndex (he_03);
const HalfEdgeIndex he_23 = mesh.getOppositeHalfEdgeIndex (he_32);
// Third face
vi.clear ();
vi.push_back (vi_0);
vi.push_back (vi_3);
vi.push_back (vi_1);
const FaceIndex fi_2 = mesh.addFace (vi);
ASSERT_TRUE (fi_2.isValid ());
const HalfEdgeIndex he_13 = mesh.getOutgoingHalfEdgeIndex (vi_1);
const HalfEdgeIndex he_31 = mesh.getOppositeHalfEdgeIndex (he_13);
// Tests
EXPECT_TRUE (checkHalfEdge (mesh, he_01, vi_0, vi_1));
EXPECT_TRUE (checkHalfEdge (mesh, he_12, vi_1, vi_2));
EXPECT_TRUE (checkHalfEdge (mesh, he_20, vi_2, vi_0));
EXPECT_TRUE (checkHalfEdge (mesh, he_02, vi_0, vi_2));
EXPECT_TRUE (checkHalfEdge (mesh, he_23, vi_2, vi_3));
EXPECT_TRUE (checkHalfEdge (mesh, he_30, vi_3, vi_0));
EXPECT_TRUE (checkHalfEdge (mesh, he_03, vi_0, vi_3));
EXPECT_TRUE (checkHalfEdge (mesh, he_31, vi_3, vi_1));
EXPECT_TRUE (checkHalfEdge (mesh, he_10, vi_1, vi_0));
EXPECT_TRUE (checkHalfEdge (mesh, he_32, vi_3, vi_2));
EXPECT_TRUE (checkHalfEdge (mesh, he_21, vi_2, vi_1));
EXPECT_TRUE (checkHalfEdge (mesh, he_13, vi_1, vi_3));
EXPECT_EQ (he_12, mesh.getNextHalfEdgeIndex (he_01));
EXPECT_EQ (he_20, mesh.getNextHalfEdgeIndex (he_12));
EXPECT_EQ (he_01, mesh.getNextHalfEdgeIndex (he_20));
EXPECT_EQ (he_23, mesh.getNextHalfEdgeIndex (he_02));
EXPECT_EQ (he_30, mesh.getNextHalfEdgeIndex (he_23));
EXPECT_EQ (he_02, mesh.getNextHalfEdgeIndex (he_30));
EXPECT_EQ (he_31, mesh.getNextHalfEdgeIndex (he_03));
EXPECT_EQ (he_10, mesh.getNextHalfEdgeIndex (he_31));
EXPECT_EQ (he_03, mesh.getNextHalfEdgeIndex (he_10));
EXPECT_EQ (he_21, mesh.getNextHalfEdgeIndex (he_32));
EXPECT_EQ (he_13, mesh.getNextHalfEdgeIndex (he_21));
EXPECT_EQ (he_32, mesh.getNextHalfEdgeIndex (he_13));
EXPECT_EQ (he_20, mesh.getPrevHalfEdgeIndex (he_01));
EXPECT_EQ (he_01, mesh.getPrevHalfEdgeIndex (he_12));
EXPECT_EQ (he_12, mesh.getPrevHalfEdgeIndex (he_20));
EXPECT_EQ (he_30, mesh.getPrevHalfEdgeIndex (he_02));
EXPECT_EQ (he_02, mesh.getPrevHalfEdgeIndex (he_23));
EXPECT_EQ (he_23, mesh.getPrevHalfEdgeIndex (he_30));
EXPECT_EQ (he_10, mesh.getPrevHalfEdgeIndex (he_03));
EXPECT_EQ (he_03, mesh.getPrevHalfEdgeIndex (he_31));
EXPECT_EQ (he_31, mesh.getPrevHalfEdgeIndex (he_10));
EXPECT_EQ (he_13, mesh.getPrevHalfEdgeIndex (he_32));
EXPECT_EQ (he_32, mesh.getPrevHalfEdgeIndex (he_21));
EXPECT_EQ (he_21, mesh.getPrevHalfEdgeIndex (he_13));
EXPECT_EQ (fi_0, mesh.getFaceIndex (he_01));
EXPECT_EQ (fi_0, mesh.getFaceIndex (he_12));
EXPECT_EQ (fi_0, mesh.getFaceIndex (he_20));
EXPECT_EQ (fi_1, mesh.getFaceIndex (he_02));
EXPECT_EQ (fi_1, mesh.getFaceIndex (he_23));
EXPECT_EQ (fi_1, mesh.getFaceIndex (he_30));
EXPECT_EQ (fi_2, mesh.getFaceIndex (he_03));
EXPECT_EQ (fi_2, mesh.getFaceIndex (he_31));
EXPECT_EQ (fi_2, mesh.getFaceIndex (he_10));
EXPECT_FALSE (mesh.getFaceIndex (he_32).isValid ());
EXPECT_FALSE (mesh.getFaceIndex (he_21).isValid ());
EXPECT_FALSE (mesh.getFaceIndex (he_13).isValid ());
EXPECT_EQ (fi_2, mesh.getOppositeFaceIndex (he_01));
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_12).isValid ());
EXPECT_EQ (fi_1, mesh.getOppositeFaceIndex (he_20));
EXPECT_EQ (fi_0, mesh.getOppositeFaceIndex (he_02));
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_23).isValid ());
EXPECT_EQ (fi_2, mesh.getOppositeFaceIndex (he_30));
EXPECT_EQ (fi_1, mesh.getOppositeFaceIndex (he_03));
EXPECT_FALSE (mesh.getOppositeFaceIndex (he_31).isValid ());
EXPECT_EQ (fi_0, mesh.getOppositeFaceIndex (he_10));
EXPECT_EQ (fi_1, mesh.getOppositeFaceIndex (he_32));
EXPECT_EQ (fi_0, mesh.getOppositeFaceIndex (he_21));
EXPECT_EQ (fi_2, mesh.getOppositeFaceIndex (he_13));
EXPECT_EQ (he_20, mesh.getInnerHalfEdgeIndex (fi_0));
EXPECT_EQ (he_30, mesh.getInnerHalfEdgeIndex (fi_1));
EXPECT_EQ (he_10, mesh.getInnerHalfEdgeIndex (fi_2));
EXPECT_EQ (he_02, mesh.getOuterHalfEdgeIndex (fi_0));
EXPECT_EQ (he_03, mesh.getOuterHalfEdgeIndex (fi_1));
EXPECT_EQ (he_01, mesh.getOuterHalfEdgeIndex (fi_2));
EXPECT_FALSE (mesh.isBoundary (he_01));
EXPECT_FALSE (mesh.isBoundary (he_12));
EXPECT_FALSE (mesh.isBoundary (he_20));
EXPECT_FALSE (mesh.isBoundary (he_02));
EXPECT_FALSE (mesh.isBoundary (he_23));
EXPECT_FALSE (mesh.isBoundary (he_30));
EXPECT_FALSE (mesh.isBoundary (he_03));
EXPECT_FALSE (mesh.isBoundary (he_31));
EXPECT_FALSE (mesh.isBoundary (he_10));
EXPECT_TRUE (mesh.isBoundary (he_32));
EXPECT_TRUE (mesh.isBoundary (he_21));
EXPECT_TRUE (mesh.isBoundary (he_13));
EXPECT_FALSE (mesh.isBoundary (vi_0));
EXPECT_TRUE (mesh.isBoundary (vi_1));
EXPECT_TRUE (mesh.isBoundary (vi_2));
EXPECT_TRUE (mesh.isBoundary (vi_3));
EXPECT_TRUE (mesh.isBoundary (fi_0));
EXPECT_TRUE (mesh.isBoundary (fi_1));
EXPECT_TRUE (mesh.isBoundary (fi_2));
}
////////////////////////////////////////////////////////////////////////////////
TEST (TestManifoldTriangleMesh, addTrianglePair)
{
ManifoldTriangleMesh mesh;
VertexIndices vi;
for (unsigned int i=0; i<16; ++i)
{
vi.push_back (mesh.addVertex ());
}
// 00 - 01 - 02 - 03 // X means that both connections / and \ are possible.
// | X | X | X | //
// 04 - 05 - 06 - 07 //
// | X | X | X | //
// 08 - 09 - 10 - 11 //
// | X | X | X | //
// 12 - 13 - 14 - 15 //
VertexIndices tmp;
std::vector <VertexIndices> faces;
tmp.push_back (vi [ 0]); tmp.push_back (vi [ 4]); tmp.push_back (vi [ 5]); tmp.push_back (vi [ 1]); faces.push_back (tmp); tmp.clear ();
tmp.push_back (vi [ 2]); tmp.push_back (vi [ 6]); tmp.push_back (vi [ 7]); tmp.push_back (vi [ 3]); faces.push_back (tmp); tmp.clear ();
tmp.push_back (vi [ 1]); tmp.push_back (vi [ 5]); tmp.push_back (vi [ 6]); tmp.push_back (vi [ 2]); faces.push_back (tmp); tmp.clear ();
tmp.push_back (vi [ 8]); tmp.push_back (vi [12]); tmp.push_back (vi [13]); tmp.push_back (vi [ 9]); faces.push_back (tmp); tmp.clear ();
tmp.push_back (vi [10]); tmp.push_back (vi [14]); tmp.push_back (vi [15]); tmp.push_back (vi [11]); faces.push_back (tmp); tmp.clear ();
tmp.push_back (vi [ 9]); tmp.push_back (vi [13]); tmp.push_back (vi [14]); tmp.push_back (vi [10]); faces.push_back (tmp); tmp.clear ();
tmp.push_back (vi [ 4]); tmp.push_back (vi [ 8]); tmp.push_back (vi [ 9]); tmp.push_back (vi [ 5]); faces.push_back (tmp); tmp.clear ();
tmp.push_back (vi [ 6]); tmp.push_back (vi [10]); tmp.push_back (vi [11]); tmp.push_back (vi [ 7]); faces.push_back (tmp); tmp.clear ();
tmp.push_back (vi [ 5]); tmp.push_back (vi [ 9]); tmp.push_back (vi [10]); tmp.push_back (vi [ 6]); faces.push_back (tmp); tmp.clear ();
for (const auto &face : faces)
{
std::pair <FaceIndex, FaceIndex> fip;
fip = mesh.addTrianglePair (face);
ASSERT_TRUE (fip.first.isValid ());
ASSERT_TRUE (fip.second.isValid ());
}
for (std::size_t i=0; i < faces.size (); ++i)
{
VertexIndices actual_1, actual_2;
ManifoldTriangleMesh::VertexAroundFaceCirculator circ = mesh.getVertexAroundFaceCirculator (FaceIndex (2*i));
ManifoldTriangleMesh::VertexAroundFaceCirculator circ_end = circ;
do
{
actual_1.push_back (circ.getTargetIndex ());
} while (++circ != circ_end);
circ = mesh.getVertexAroundFaceCirculator (FaceIndex (2*i + 1));
circ_end = circ;
do
{
actual_2.push_back (circ.getTargetIndex ());
} while (++circ != circ_end);
VertexIndices expected_1, expected_2, expected_3, expected_4;
tmp = faces [i];
expected_1.push_back (tmp [0]); expected_1.push_back (tmp [1]); expected_1.push_back (tmp [2]);
expected_2.push_back (tmp [0]); expected_2.push_back (tmp [2]); expected_2.push_back (tmp [3]);
expected_3.push_back (tmp [0]); expected_3.push_back (tmp [1]); expected_3.push_back (tmp [3]);
expected_4.push_back (tmp [1]); expected_4.push_back (tmp [2]); expected_4.push_back (tmp [3]);
EXPECT_TRUE ((isCircularPermutation (expected_1, actual_1) && isCircularPermutation (expected_2, actual_2)) ||
(isCircularPermutation (expected_2, actual_1) && isCircularPermutation (expected_1, actual_2)) ||
(isCircularPermutation (expected_3, actual_1) && isCircularPermutation (expected_4, actual_2)) ||
(isCircularPermutation (expected_4, actual_1) && isCircularPermutation (expected_3, actual_2)));
}
}
////////////////////////////////////////////////////////////////////////////////
int
main (int argc, char** argv)
{
testing::InitGoogleTest (&argc, argv);
return (RUN_ALL_TESTS ());
}