vtk-m/vtkm/rendering/raytracing/MeshConnectivityBuilder.h
Kenneth Moreland 6b144abe41 Remove virtual methods from MeshConnectivity in rendering
Virtual methods were used in the `MeshConnectivity` classes for the
internal ray casting system. However, using virtual methods in the
execution environment is being deprecated.

This change replaces the virtual object with an object containing a
`Variant`. The `Variant` holds one of the supported mesh connectivities
and selects the correct one at runtime rather than jumping into a
virtual method.
2021-04-12 15:53:36 -06:00

62 lines
2.0 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_rendering_raytracing_MeshConnectivityBuilder_h
#define vtk_m_rendering_raytracing_MeshConnectivityBuilder_h
#include <vtkm/cont/DataSet.h>
#include <vtkm/rendering/raytracing/MeshConnectivityContainers.h>
namespace vtkm
{
namespace rendering
{
namespace raytracing
{
class MeshConnectivityBuilder
{
public:
MeshConnectivityBuilder();
~MeshConnectivityBuilder();
VTKM_CONT
MeshConnectivityContainer* BuildConnectivity(const vtkm::cont::DynamicCellSet& cellset,
const vtkm::cont::CoordinateSystem& coordinates);
VTKM_CONT
vtkm::cont::ArrayHandle<vtkm::Id4> ExternalTrianglesStructured(
vtkm::cont::CellSetStructured<3>& cellSetStructured);
vtkm::cont::ArrayHandle<vtkm::Id> GetFaceConnectivity();
vtkm::cont::ArrayHandle<vtkm::Id> GetFaceOffsets();
vtkm::cont::ArrayHandle<vtkm::Id4> GetTriangles();
protected:
VTKM_CONT
void BuildConnectivity(vtkm::cont::CellSetSingleType<>& cellSetUnstructured,
const vtkm::cont::CoordinateSystem::MultiplexerArrayType& coordinates,
vtkm::Bounds coordsBounds);
VTKM_CONT
void BuildConnectivity(vtkm::cont::CellSetExplicit<>& cellSetUnstructured,
const vtkm::cont::CoordinateSystem::MultiplexerArrayType& coordinates,
vtkm::Bounds coordsBounds);
vtkm::cont::ArrayHandle<vtkm::Id> FaceConnectivity;
vtkm::cont::ArrayHandle<vtkm::Id> FaceOffsets;
vtkm::cont::ArrayHandle<vtkm::Id4> Triangles;
};
}
}
} //namespace vtkm::rendering::raytracing
#endif