forked from InsightSoftwareConsortium/itk-wasm
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itkWASMMesh.hxx
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itkWASMMesh.hxx
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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.
*
*=========================================================================*/
#ifndef itkWASMMesh_hxx
#define itkWASMMesh_hxx
#include "itkWASMMesh.h"
namespace itk
{
template <typename TMesh>
void
WASMMesh<TMesh>
::SetMesh(const MeshType * mesh)
{
SizeValueType cellBufferSize = 2 * mesh->GetNumberOfCells();
for (typename MeshType::CellsContainerConstIterator ct = mesh->GetCells()->Begin(); ct != mesh->GetCells()->End(); ++ct)
{
cellBufferSize += ct->Value()->GetNumberOfPoints();
}
this->m_CellBufferContainer->resize(cellBufferSize);
const typename MeshType::CellsContainer * cells = mesh->GetCells();
typename MeshType::PointIdentifier const * ptIds;
typename MeshType::CellType * cellPtr;
// For each cell
SizeValueType index = NumericTraits<SizeValueType>::ZeroValue();
typename MeshType::CellsContainerConstIterator cter = cells->Begin();
while (cter != cells->End())
{
cellPtr = cter.Value();
// Write the cell type
switch (cellPtr->GetType())
{
case CellGeometryEnum::VERTEX_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::VERTEX_CELL));
break;
case CellGeometryEnum::LINE_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::LINE_CELL));
break;
case CellGeometryEnum::TRIANGLE_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::TRIANGLE_CELL));
break;
case CellGeometryEnum::QUADRILATERAL_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::QUADRILATERAL_CELL));
break;
case CellGeometryEnum::POLYGON_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::POLYGON_CELL));
break;
case CellGeometryEnum::TETRAHEDRON_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::TETRAHEDRON_CELL));
break;
case CellGeometryEnum::HEXAHEDRON_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::HEXAHEDRON_CELL));
break;
case CellGeometryEnum::QUADRATIC_EDGE_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::QUADRATIC_EDGE_CELL));
break;
case CellGeometryEnum::QUADRATIC_TRIANGLE_CELL:
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(CellGeometryEnum::QUADRATIC_TRIANGLE_CELL));
break;
default:
itkExceptionMacro(<< "Unknown mesh cell");
}
// The second element is number of points for each cell
this->m_CellBufferContainer->SetElement(index++, cellPtr->GetNumberOfPoints());
// Others are point identifiers in the cell
ptIds = cellPtr->GetPointIds();
unsigned int numberOfPoints = cellPtr->GetNumberOfPoints();
for (unsigned int ii = 0; ii < numberOfPoints; ++ii)
{
this->m_CellBufferContainer->SetElement(index++, static_cast<CellIdentifier>(ptIds[ii]));
}
++cter;
}
this->SetDataObject(const_cast<MeshType *>(mesh));
}
} // end namespace itk
#endif