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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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 "itkMesh.h"
#include "itkPolygonCell.h"
#include <iostream>
#include <string>
int itkPolygonCellTest(int, char* [] )
{
/**
* Define a mesh type that stores a PixelType of "int". Use the defaults for
* the other template parameters.
*/
typedef itk::Mesh<int> MeshType;
typedef MeshType::CellTraits CellTraits;
/**
* 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.
*/
typedef itk::CellInterface< int, CellTraits > CellInterfaceType;
typedef itk::PolygonCell<CellInterfaceType> PolygonCellType;
/**
* 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.
*/
typedef MeshType::CellType CellType;
typedef CellType::CellAutoPointer 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.
*/
typedef MeshType::PointType PointType;
/**
* Create the mesh through its object factory.
*/
MeshType::Pointer 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( MeshType::CellsAllocatedDynamicallyCellByCell );
/**
* 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;
PolygonCellType * newcell = new PolygonCellType;
testCell.TakeOwnership( newcell ); // polymorphism
/**
* List the points that the polygon will use from the mesh.
*/
MeshType::PointIdentifier polygon1Points[4] = {0,1,2,3};
/**
* Assign the points to the tetrahedron through their identifiers.
*/
testCell->SetPointIds(polygon1Points);
/**
* Add the test cell to the mesh.
* mesh->SetCell(cellId, cell)
*/
mesh->SetCell(0, testCell ); // Transfer ownership to the mesh
std::cout << "PolygonCell pointer = " << (void const *)testCell.GetPointer() << std::endl;
std::cout << "PolygonCell Owner = " << testCell.IsOwner() << 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;
}
}
/**
* Exercise the methods AddPointId() and RemovePointId()
*/
{
unsigned int np = newcell->GetNumberOfPoints();
newcell->AddPointId( 100 );
if( newcell->GetNumberOfPoints() != np+1 )
{
std::cerr << "AddPointId failed !" << std::endl;
return EXIT_FAILURE;
}
newcell->RemovePointId( 100 );
if( newcell->GetNumberOfPoints() != np )
{
std::cerr << "RemovePointId failed !" << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
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