vtkm::CellTraits< CellTag > Struct Template Reference

Information about a cell based on its tag. More...

#include <CellTraits.h>

Public Types
using	TopologicalDimensionsTag = vtkm::CellTopologicalDimensionsTag< TOPOLOGICAL_DIMENSIONS >
	This tag is typedef'ed to vtkm::CellTopologicalDimensionsTag<TOPOLOGICAL_DIMENSIONS>. More...
using	IsSizeFixed = vtkm::CellTraitsTagSizeFixed
	A tag specifying whether the number of points is fixed. More...

Static Public Attributes
static const vtkm::IdComponent	TOPOLOGICAL_DIMENSIONS = 3
	This defines the topological dimensions of the cell type. More...
static constexpr vtkm::IdComponent	NUM_POINTS = 3
	Number of points in the cell. More...

Detailed Description

template<class CellTag>
struct vtkm::CellTraits< CellTag >

Information about a cell based on its tag.

The templated CellTraits struct provides the basic high level information about cells (like the number of vertices in the cell or its dimensionality).

Member Typedef Documentation

IsSizeFixed

template<class CellTag >

using vtkm::CellTraits< CellTag >::IsSizeFixed = vtkm::CellTraitsTagSizeFixed

A tag specifying whether the number of points is fixed.

If set to CellTraitsTagSizeFixed, then NUM_POINTS is set. If set to CellTraitsTagSizeVariable, then the number of points is not known at compile time.

TopologicalDimensionsTag

template<class CellTag >

using vtkm::CellTraits< CellTag >::TopologicalDimensionsTag = vtkm::CellTopologicalDimensionsTag<TOPOLOGICAL_DIMENSIONS>

This tag is typedef'ed to vtkm::CellTopologicalDimensionsTag<TOPOLOGICAL_DIMENSIONS>.

This provides a convenient way to overload a function based on topological dimensions (which is usually more efficient than conditionals).

Member Data Documentation

NUM_POINTS

template<class CellTag >

constexpr vtkm::IdComponent vtkm::CellTraits< CellTag >::NUM_POINTS = 3

staticconstexpr

Number of points in the cell.

This is only defined for cell shapes of a fixed number of points (i.e. IsSizedFixed is set to CellTraitsTagSizeFixed.

TOPOLOGICAL_DIMENSIONS

template<class CellTag >

const vtkm::IdComponent vtkm::CellTraits< CellTag >::TOPOLOGICAL_DIMENSIONS = 3

static

This defines the topological dimensions of the cell type.

3 for polyhedra, 2 for polygons, 1 for lines, 0 for points.

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The documentation for this struct was generated from the following file:

• CellTraits.h