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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 "itkQuadEdgeMeshTopologyChecker.h"
int
itkQuadEdgeMeshAddFaceTest2(int, char *[])
{
using MeshType = itk::QuadEdgeMesh<double, 3>;
using MeshPointer = MeshType::Pointer;
using CellType = MeshType::CellType;
using QEPolygonCellType = itk::QuadEdgeMeshPolygonCell<CellType>;
int numPts = 7;
int numCells = 4;
std::cout << "numPts= " << numPts << std::endl;
std::cout << "numCells= " << numCells << std::endl;
int oddConnectivityCells[12] = {
0, 1, 2, 3, 4, 5, 6, 4, 0, 0, 4, 6,
};
// Configuration of odd_connectivity mesh:
// numVertices=7, numEdges=9, numFaces=3, numBoundaries=1, Chi=2
//
// 5 ---------- 4 ---------- 0 ---------- 1
// | [2] __/ | [3] __/ \__ [1] |
// | __/ | __/ \__ |
// | __/ | __/ \__ |
// | / | / \ |
// 3 6 2
//
// First we add the three triangles [0 1 2], [3 4 5], [6 4 0].
// Then we try to add a fourth triangle, which is the third triangle
// inverted i.e. [0 4 6]. This triangle can not be added.
MeshPointer mesh = MeshType::New();
MeshType::PointType pts[7];
pts[0][0] = 2.0;
pts[0][1] = 1.0;
pts[0][2] = 0.0;
pts[1][0] = 3.0;
pts[1][1] = 1.0;
pts[1][2] = 0.0;
pts[2][0] = 3.0;
pts[2][1] = 0.0;
pts[2][2] = 0.0;
pts[3][0] = 0.0;
pts[3][1] = 0.0;
pts[3][2] = 0.0;
pts[4][0] = 1.0;
pts[4][1] = 1.0;
pts[4][2] = 0.0;
pts[5][0] = 0.0;
pts[5][1] = 1.0;
pts[5][2] = 0.0;
pts[6][0] = 1.0;
pts[6][1] = 0.0;
pts[6][2] = 0.0;
for (int i = 0; i < numPts; ++i)
{
mesh->SetPoint(i, pts[i]);
}
int computedNumPts = mesh->GetNumberOfPoints();
std::cout << "computedNumPts= " << computedNumPts << std::endl;
CellType::CellAutoPointer cellpointer;
QEPolygonCellType * poly;
for (int i = 0; i < numCells; ++i)
{
poly = new QEPolygonCellType(3);
cellpointer.TakeOwnership(poly);
cellpointer->SetPointId(0, oddConnectivityCells[3 * i]);
cellpointer->SetPointId(1, oddConnectivityCells[3 * i + 1]);
cellpointer->SetPointId(2, oddConnectivityCells[3 * i + 2]);
mesh->SetCell(i, cellpointer);
}
int computedNumFaces = mesh->ComputeNumberOfFaces();
std::cout << "computedNumFaces= " << computedNumFaces << std::endl;
std::cout << "Test whether the fourth face was rejected" << std::endl;
using TopologyCheckerType = itk::QuadEdgeMeshTopologyChecker<MeshType>;
auto checker = TopologyCheckerType::New();
checker->SetMesh(mesh);
checker->SetExpectedNumberOfPoints(7);
checker->SetExpectedNumberOfEdges(9);
checker->SetExpectedNumberOfFaces(3);
checker->SetExpectedNumberOfBoundaries(3);
checker->SetExpectedGenus(0); // FIXME find the correct genus value
checker->GetNameOfClass();
std::cout << "Testing PrintSelf: " << std::endl;
std::cout << checker << std::endl;
std::cout << "[SUCCESS]" << std::endl;
if (checker->ValidateEulerCharacteristic())
{
std::cout << "Passed" << std::endl;
}
else
{
std::cout << "Failed" << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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