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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkQuadEdgeMeshBoundaryEdgesMeshFunction.h"
#include "itkTestingMacros.h"
int
itkQuadEdgeMeshAddFaceTest1(int argc, char * argv[])
{
if (argc != 2)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " testType [0..5]:" << std::endl;
std::cerr << " 0-Test regular cases (i)." << std::endl;
std::cerr << " 1-Test regular cases (ii)." << std::endl;
std::cerr << " 2-Test merging two triangulations with opposite orientations." << std::endl;
std::cerr << " 3-Test adding a quadrangle." << std::endl;
std::cerr << " 4-Test adding a face with five edges." << std::endl;
std::cerr << " 5-Test adding with a Moebius strip." << std::endl;
return EXIT_FAILURE;
}
using MeshType = itk::QuadEdgeMesh<double, 3>;
using PointType = MeshType::PointType;
using PointIdentifier = MeshType::PointIdentifier;
using PointIdList = std::vector<PointIdentifier>;
using BEFunctionType = itk::QuadEdgeMeshBoundaryEdgesMeshFunction<MeshType>;
auto BoundaryEdges = BEFunctionType::New();
std::cout << BoundaryEdges->GetNameOfClass() << std::endl;
auto mesh = MeshType::New();
// //
// p3--------------p2 //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// p4---------------p0--------------p1 //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// p5---------------p6 //
/// //
constexpr int NumPoints = 7;
PointIdentifier pid[NumPoints];
PointType::CoordRepType a = std::sqrt(3.0) / 2.0;
using ValueArrayType = PointType::ValueArrayType;
ValueArrayType pointCoordinates[NumPoints] = { { 0.0, 0.0, 0.0 }, { 1.0, 0.0, 0.0 }, { 0.5, a, 0.0 },
{ -0.5, a, 0.0 }, { -1.0, 0.0, 0.0 }, { -0.5, -a, 0.0 },
{ 0.5, -a, 0.0 } };
PointType points[NumPoints];
for (int j = 0; j < NumPoints; ++j)
{
points[j] = pointCoordinates[j];
}
for (int i = 0; i < NumPoints; ++i)
{
pid[i] = mesh->AddPoint(points[i]);
}
int testType = std::stoi(argv[1]);
if (testType == 0)
{
#ifndef NDEBUG
/////////////////////////////////////////////////////////////
std::cout << "Adding a degenerate triangle should return false" << std::endl;
if (!mesh->AddFaceTriangle(pid[0], pid[0], pid[2]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
#endif
/////////////////////////////////////////////////////////////////////
std::cout << "Adding a triangle with three new edges" << std::endl;
// //
// p2 //
// / \ //
// / \ //
// / \ //
// / \ //
// / \ //
// / NEW \ //
// / \ //
// p0---------------p1 y
//
if (mesh->AddFaceTriangle(pid[0], pid[1], pid[2]))
{
if (mesh->FindEdge(pid[0], pid[1]) && mesh->FindEdge(pid[1], pid[0]) && mesh->FindEdge(pid[1], pid[2]) &&
mesh->FindEdge(pid[2], pid[1]) && mesh->FindEdge(pid[2], pid[0]) && mesh->FindEdge(pid[0], pid[2]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
/////////////////////////////////////////////////////////////
std::cout << "Adding a triangle with two new edges" << std::endl;
// //
// p3--------------p2 //
// \ / \ //
// \ / \ //
// \ NEW / \ //
// \ / \ //
// \ / \ //
// \ / \ //
// \ / \ //
// p0--------------p1 //
// //
if (mesh->AddFaceTriangle(pid[0], pid[2], pid[3]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
/////////////////////////////////////////////////////////////
std::cout << "Adding a flipped triangle" << std::endl;
// //
// p3--------------p2 //
// \ / \ //
// \ / \ //
// \ / \ //
// \ / \ //
// \ / \ //
// \ / \ //
// \ / \ //
// p4---------------p0--------------p1 //
// \ / //
// \ / //
// \ NEW / //
// \ / //
// \ / //
// \ / //
// \ / //
// p5 //
// //
if (mesh->AddFaceTriangle(pid[0], pid[5], pid[4]))
{
if (mesh->FindEdge(pid[0], pid[5]) && mesh->FindEdge(pid[5], pid[0]) && mesh->FindEdge(pid[5], pid[4]) &&
mesh->FindEdge(pid[4], pid[5]) && mesh->FindEdge(pid[4], pid[0]) && mesh->FindEdge(pid[0], pid[4]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
/////////////////////////////////////////////////////////////
std::cout << "Adding a triangle with an inconsistent orientation should "
"return false"
<< std::endl;
// //
// p3--------------p2 //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / NEW \ / \ //
// / \ / \ //
// p4---------------p0--------------p1 //
// \ / //
// \ / //
// \ / //
// \ / //
// \ / //
// \ / //
// \ / //
// p5 //
// //
if (!mesh->AddFaceTriangle(pid[0], pid[3], pid[4]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
}
if (testType == 1)
{
///////////////////////////////////////////////////////////////////////
// typical cases
std::cout << "Adding triangles [0,1,2], [0,2,3], [0,4,5]" << std::endl;
if (mesh->AddFaceTriangle(pid[0], pid[1], pid[2]) && mesh->AddFaceTriangle(pid[0], pid[2], pid[3]) &&
mesh->AddFaceTriangle(pid[0], pid[4], pid[5]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
///////////////////////////////////////////////////////////////////
std::cout << "Adding a triangle with one new edge" << std::endl;
// //
// p3--------------p2 //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / NEW \ / \ //
// / \ / \ //
// p4---------------p0--------------p1 //
// \ / //
// \ / //
// \ / //
// \ / //
// \ / //
// \ / //
// \ / //
// p5 //
// //
if (mesh->AddFaceTriangle(pid[0], pid[3], pid[4]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "FAILED." << std::endl;
return EXIT_FAILURE;
}
/////////////////////////////////////////////////////////////////////
std::cout << "Adding a triangle with two new edges" << std::endl;
// //
// //
// p3--------------p2 //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// p4---------------p0--------------p1 //
// \ / \ / //
// \ / \ / //
// \ / \ NEW / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// p5 p6 //
// //
if (mesh->AddFaceTriangle(pid[0], pid[6], pid[1]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
/////////////////////////////////////////////////////////////
std::cout << "Adding a triangle to close the 1-ring" << std::endl;
// //
// p3--------------p2 //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// / \ / \ //
// p4---------------p0--------------p1 //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / NEW \ / //
// \ / \ / //
// p5---------------p6 //
// //
if (mesh->AddFaceTriangle(pid[5], pid[6], pid[0]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
}
if (testType == 2)
{
/////////////////////////////////////////////////////////////////////
// Try to merge two triangulations with opposite orientations.
// We build a first surface patch made of two triangles [p0, p1, p2]
// and [p0, p6, p1] built with counter-clockwise orientation.
// We build a second surface patch also made of two triangles
// [p0, p5, p4] and [p0, p4, p3] which are build with clockwise
// orientation. Hence those two patches have opposite orientations:
// //
// p3 p2 //
// / \ / \ //
// Build / \ / \ //
// clockwise ===> / \ / \ //
// / \ / \ //
// / * \ / * \ <=== Build counter- //
// / \ / \ clockwise//
// / \ / \ //
// p4---------------p0--------------p1 //
// \ / \ / //
// \ / \ / //
// \ * / \ * / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// p5 p6 //
// //
// Then we merge those two patches by building the triangle [p0, p2, p3]:
// //
// p3--------------p2 //
// / \ / \ //
// Build / \ / \ //
// clockwise ===> / \ NEW / \ //
// / \ / \ //
// / * \ / * \ <=== Build counter- //
// / \ / \ clockwise//
// / \ / \ //
// p4---------------p0--------------p1 //
// \ / \ / //
// \ / \ / //
// \ * / \ * / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// \ / \ / //
// p5 p6 //
// //
// Currently itk::QuadEdgeMesh::AddFace() is unable to correct the orientation
// after merging two patches with opposite orientations.
//
std::cout << "Adding a triangle between patches of opposite orientations "
"should return false"
<< std::endl;
// auto inconsistentMesh = MeshType::New();
// for(int i=0; i < NumPoints; i++)
// {
// pid[i] = inconsistentMesh->AddPoint( points[i] );
// }
if (mesh->AddFaceTriangle(pid[0], pid[1], pid[2]) && mesh->AddFaceTriangle(pid[0], pid[6], pid[1]) &&
mesh->AddFaceTriangle(pid[0], pid[5], pid[4]) && mesh->AddFaceTriangle(pid[0], pid[4], pid[3]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
std::cout << "Adding another triangle between patches of opposite "
"orientations. It should return false."
<< std::endl;
if (!mesh->AddFaceTriangle(pid[0], pid[2], pid[3]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
}
if (testType == 3)
{
//////////////////////////////////////////////////////////////////////
// Adding a quadrangle.
//
// p3--------------p2
// / /
// / /
// / /
// / /
// / /
// / /
// / /
// p4---------------p0
//
std::cout << "Adding a quadrangle where pid4 = pid3 + 1" << std::endl;
// for( int i=0; i < NumPoints; i++)
// {
// pid[i] = mesh->AddPoint( points[i] );
// }
PointIdList quadPointIds;
quadPointIds.push_back(pid[0]);
quadPointIds.push_back(pid[2]);
quadPointIds.push_back(pid[3]);
quadPointIds.push_back(pid[4]);
MeshType::QEPrimal * quadFace = mesh->AddFace(quadPointIds);
if (quadFace)
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
std::cout << "Adding a quadrangle where pid4 != pid3 + 1" << std::endl;
for (int i = 0; i < NumPoints; ++i)
{
pid[i] = mesh->AddPoint(points[i]);
}
PointIdList quadPointIds2;
quadPointIds2.push_back(pid[0]);
quadPointIds2.push_back(pid[2]);
quadPointIds2.push_back(pid[4]);
quadPointIds2.push_back(pid[3]);
MeshType::QEPrimal * quadFace2 = mesh->AddFace(quadPointIds2);
if (quadFace2)
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
std::cout << "Indices of the quadrangle: [" << quadFace2->GetOrigin() << ' ' << quadFace2->GetLnext()->GetOrigin()
<< ' ' << quadFace2->GetLnext()->GetLnext()->GetOrigin() << ' '
<< quadFace2->GetLnext()->GetLnext()->GetLnext()->GetOrigin() << ' '
<< quadFace2->GetLnext()->GetLnext()->GetLnext()->GetLnext()->GetOrigin() << ']' << std::endl;
std::cout << "Correct indices should be: [" << pid[0] << ' ' << pid[2] << ' ' << pid[4] << ' ' << pid[3] << ' '
<< pid[0] << ']' << std::endl;
std::cout << "Testing value for pid4" << std::endl;
if (quadFace2->GetLnext()->GetLnext()->GetLnext()->GetOrigin() == pid[3])
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
}
if (testType == 4)
{
// Adding a face with five edges. //
// //
// p3--------------p2 //
// / \ //
// / \ //
// / \ //
// / \ //
// / \ //
// / \ //
// / \ //
// p4---------------p0--------------p1 //
// //
std::cout << "Adding a face with five edges" << std::endl;
PointIdList fivePointIds;
fivePointIds.push_back(pid[0]);
fivePointIds.push_back(pid[1]);
fivePointIds.push_back(pid[2]);
fivePointIds.push_back(pid[3]);
fivePointIds.push_back(pid[4]);
MeshType::QEPrimal * fiveFace = mesh->AddFace(fivePointIds);
if (fiveFace)
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
}
if (testType == 5)
{
/////////////////////////////////////////////////////////////////////
// The Moebius strip should be rejected by itk::QuadEdgeMesh::AddFace() of a
// non-orientable surface. Only six points are defined. The geometry of
// this Moebius strip is flat (in the z = 0 plane) but geometry is not
// relevant for this test. Gluing happens along the edge [p0, p1].
//
// p1 ---------p3----------p5-----------p0
// |\ |\ |\ |
// | \ | \ | \ |
// | \ | \ | \ |
// | \ | \ | \ |
// | \ | \ | \ |
// | \ | \ | \ |
// | \ | \ | \ |
// | \ | \ | \ |
// | \ | \ | \ |
// | \ | \ | \ |
// | \| \| \|
// p0----------p2-----------p4----------p1
//
//
auto moebiusMesh = MeshType::New();
constexpr int moebNumPoints = 6;
PointIdentifier moebPid[moebNumPoints];
ValueArrayType moebPointCoordinates[moebNumPoints] = { { 0.0, 0.0, 0.0 }, { 0.0, 1.0, 0.0 }, { 1.0, 0.0, 0.0 },
{ 1.0, 1.0, 0.0 }, { 2.0, 0.0, 0.0 }, { 2.0, 1.0, 0.0 } };
PointType moebPoints[moebNumPoints];
for (int j = 0; j < moebNumPoints; ++j)
{
moebPoints[j] = moebPointCoordinates[j];
}
for (int i = 0; i < moebNumPoints; ++i)
{
moebPid[i] = moebiusMesh->AddPoint(moebPoints[i]);
}
std::cout << "Adding triangles of a non-orientable surface but one "
"triangle"
<< std::endl;
if (moebiusMesh->AddFaceTriangle(moebPid[0], moebPid[2], moebPid[1]) &&
moebiusMesh->AddFaceTriangle(moebPid[2], moebPid[3], moebPid[1]) &&
moebiusMesh->AddFaceTriangle(moebPid[2], moebPid[4], moebPid[3]) &&
moebiusMesh->AddFaceTriangle(moebPid[4], moebPid[5], moebPid[3]) &&
moebiusMesh->AddFaceTriangle(moebPid[4], moebPid[1], moebPid[5]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
std::cout << "Adding one more triangle makes the surface non-orientable. "
"It should return false"
<< std::endl;
if (!moebiusMesh->AddFaceTriangle(moebPid[1], moebPid[0], moebPid[5]))
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
}
std::cout << "AddFaceTest passed" << std::endl;
return EXIT_SUCCESS;
}
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