mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt for details.
|
|
//
|
|
// This software is distributed WITHOUT ANY WARRANTY; without even
|
|
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
// PURPOSE. See the above copyright notice for more information.
|
|
//============================================================================
|
|
#ifndef vtk_m_worklet_lcs_GridMetaData_h
|
|
#define vtk_m_worklet_lcs_GridMetaData_h
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace worklet
|
|
{
|
|
namespace detail
|
|
{
|
|
|
|
class GridMetaData
|
|
{
|
|
public:
|
|
using Structured2DType = vtkm::cont::CellSetStructured<2>;
|
|
using Structured3DType = vtkm::cont::CellSetStructured<3>;
|
|
|
|
VTKM_CONT
|
|
GridMetaData(const vtkm::cont::DynamicCellSet cellSet)
|
|
{
|
|
if (cellSet.IsType<Structured2DType>())
|
|
{
|
|
this->cellSet2D = true;
|
|
vtkm::Id2 dims =
|
|
cellSet.Cast<Structured2DType>().GetSchedulingRange(vtkm::TopologyElementTagPoint());
|
|
this->Dims = vtkm::Id3(dims[0], dims[1], 1);
|
|
}
|
|
else
|
|
{
|
|
this->cellSet2D = false;
|
|
this->Dims =
|
|
cellSet.Cast<Structured3DType>().GetSchedulingRange(vtkm::TopologyElementTagPoint());
|
|
}
|
|
this->PlaneSize = Dims[0] * Dims[1];
|
|
this->RowSize = Dims[0];
|
|
}
|
|
|
|
VTKM_EXEC
|
|
bool IsCellSet2D() const { return this->cellSet2D; }
|
|
|
|
VTKM_EXEC
|
|
void GetLogicalIndex(const vtkm::Id index, vtkm::Id3& logicalIndex) const
|
|
{
|
|
logicalIndex[0] = index % Dims[0];
|
|
logicalIndex[1] = (index / Dims[0]) % Dims[1];
|
|
if (this->cellSet2D)
|
|
logicalIndex[2] = 0;
|
|
else
|
|
logicalIndex[2] = index / (Dims[0] * Dims[1]);
|
|
}
|
|
|
|
VTKM_EXEC
|
|
const vtkm::Vec<vtkm::Id, 6> GetNeighborIndices(const vtkm::Id index) const
|
|
{
|
|
vtkm::Vec<vtkm::Id, 6> indices;
|
|
vtkm::Id3 logicalIndex;
|
|
GetLogicalIndex(index, logicalIndex);
|
|
|
|
// For differentials w.r.t delta in x
|
|
indices[0] = (logicalIndex[0] == 0) ? index : index - 1;
|
|
indices[1] = (logicalIndex[0] == Dims[0] - 1) ? index : index + 1;
|
|
// For differentials w.r.t delta in y
|
|
indices[2] = (logicalIndex[1] == 0) ? index : index - RowSize;
|
|
indices[3] = (logicalIndex[1] == Dims[1] - 1) ? index : index + RowSize;
|
|
if (!this->cellSet2D)
|
|
{
|
|
// For differentials w.r.t delta in z
|
|
indices[4] = (logicalIndex[2] == 0) ? index : index - PlaneSize;
|
|
indices[5] = (logicalIndex[2] == Dims[2] - 1) ? index : index + PlaneSize;
|
|
}
|
|
return indices;
|
|
}
|
|
|
|
private:
|
|
bool cellSet2D = false;
|
|
vtkm::Id3 Dims;
|
|
vtkm::Id PlaneSize;
|
|
vtkm::Id RowSize;
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace worklet
|
|
} // namespace vtkm
|
|
|
|
#endif //vtk_m_worklet_lcs_GridMetaData_h
|