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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 "itkQuadEdgeMesh.h"
#include "itkTestingMacros.h"
#include <iostream>
int
itkQuadEdgeMeshPolygonCellTest(int, char *[])
{
/**
* Define a mesh type that stores a PixelType of "int". Use the defaults for
* the other template parameters.
*/
using MeshType = itk::QuadEdgeMesh<int, 3>;
using CellTraits = MeshType::CellTraits;
using PointIdentifier = MeshType::PointIdentifier;
/**
* Define a few cell types which uses a PixelType of "int". Again,
* use the defaults for the other parameters. Note that a cell's template
* parameters must match those of the mesh into which it is inserted.
*/
using CellInterfaceType = itk::CellInterface<int, CellTraits>;
using PolygonCellType = itk::QuadEdgeMeshPolygonCell<CellInterfaceType>;
/**
* Typedef the generic cell type for the mesh. It is an abstract class,
* so we can only use information from it, like get its pointer type.
*/
using CellType = MeshType::CellType;
using CellAutoPointer = CellType::CellAutoPointer;
/**
* The type of point stored in the mesh. Because mesh was instantiated
* with defaults (itkDefaultStaticMeshTraits), the point dimension is 3 and
* the coordinate representation is float.
*/
using PointType = MeshType::PointType;
/**
* Create the mesh through its object factory.
*/
auto mesh = MeshType::New();
mesh->DebugOn();
/**
* Define the 3d geometric positions for 8 points in a cube.
*/
MeshType::CoordRepType testPointCoords[8][3] = { { 0, 0, 0 }, { 9, 0, 0 }, { 9, 0, 9 }, { 0, 0, 9 },
{ 0, 9, 0 }, { 9, 9, 0 }, { 9, 9, 9 }, { 0, 9, 9 } };
/**
* Add our test points to the mesh.
* mesh->SetPoint(pointId, point)
* Note that the constructor for Point is public, and takes an array
* of coordinates for the point.
*/
for (int i = 0; i < 8; ++i)
{
mesh->SetPoint(i, PointType(testPointCoords[i]));
}
/**
* Specify the method used for allocating cells
*/
mesh->SetCellsAllocationMethod(itk::MeshEnums::MeshClassCellsAllocationMethod::CellsAllocatedDynamicallyCellByCell);
// Test point container iterators
PolygonCellType quadEdgeMeshPolygonCell{};
PolygonCellType::PointIdIterator pointId = quadEdgeMeshPolygonCell.PointIdsBegin();
PolygonCellType::PointIdIterator endId = quadEdgeMeshPolygonCell.PointIdsEnd();
ITK_TEST_EXPECT_TRUE(pointId);
ITK_TEST_EXPECT_TRUE(endId);
PolygonCellType::PointIdConstIterator constPointId = quadEdgeMeshPolygonCell.PointIdsBegin();
PolygonCellType::PointIdConstIterator constEndId = quadEdgeMeshPolygonCell.PointIdsEnd();
ITK_TEST_EXPECT_TRUE(constPointId);
ITK_TEST_EXPECT_TRUE(constEndId);
/**
* Create the test cell. Note that testCell is a generic auto
* pointer to a cell; in this example it ends up pointing to
* different types of cells.
*/
CellAutoPointer testCell;
auto * newcell = new PolygonCellType(4);
testCell.TakeOwnership(newcell); // polymorphism
/**
* List the points that the polygon will use from the mesh.
*/
PointIdentifier polygon1Points[4] = { 0, 1, 2, 3 };
/**
* Assign the points to the tetrahedron through their identifiers.
*/
testCell->SetPointIds(polygon1Points);
if (newcell->GetPointId(18) != PointIdentifier(-1))
{
std::cerr << "Get Point should have failed !" << std::endl;
return EXIT_FAILURE;
}
// Test iterators
std::cout << "Iterator: ";
pointId = newcell->PointIdsBegin();
endId = newcell->PointIdsEnd();
while (pointId != endId)
{
std::cout << *pointId << ", ";
pointId++;
}
std::cout << std::endl;
std::cout << "Iterator const: ";
constPointId = newcell->PointIdsBegin();
constEndId = newcell->PointIdsEnd();
while (constPointId != constEndId)
{
std::cout << *constPointId << ", ";
constPointId++;
}
std::cout << std::endl;
std::cout << "Test MakeCopy" << std::endl;
CellAutoPointer anotherCell;
testCell->MakeCopy(anotherCell);
if (anotherCell->GetNumberOfPoints() != testCell->GetNumberOfPoints())
{
std::cerr << "Make Copy failed !" << std::endl;
return EXIT_FAILURE;
}
/**
* Add the test cell to the mesh.
* mesh->SetCell(cellId, cell)
*
* Difference itk::Mesh and itk::QEMesh
* the first take over the cell.
* The cell address is still valid after a SetCell()
* the second one create a new cell. The cell is deleted within SetCell()
*/
mesh->SetCell(0, testCell); // Transfer ownership to the mesh
std::cout << "PolygonCell pointer = ";
std::cout << (void const *)testCell.GetPointer() << std::endl;
std::cout << "PolygonCell Owner = " << testCell.IsOwner() << std::endl;
return EXIT_SUCCESS;
}
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