vtkIndexedArray.h File Reference

#include "vtkCommonCoreModule.h"
#include "vtkImplicitArray.h"
#include "vtkIndexedImplicitBackend.h"
#include <vector>

Include dependency graph for vtkIndexedArray.h:

Go to the source code of this file.

Macros
#define	VTK_INDEXED_ARRAY_TEMPLATE_EXTERN

Typedefs
template<typename T >
using	vtkIndexedArray = vtkImplicitArray< vtkIndexedImplicitBackend< T > >
	A utility alias for creating a wrapper array around an existing array and reindexing its components.

Functions
	vtkExternSecondOrderTemplateMacro (extern template class VTKCOMMONCORE_EXPORT vtkImplicitArray, vtkIndexedImplicitBackend)

Macro Definition Documentation

VTK_INDEXED_ARRAY_TEMPLATE_EXTERN

#define VTK_INDEXED_ARRAY_TEMPLATE_EXTERN

Definition at line 79 of file vtkIndexedArray.h.

Typedef Documentation

vtkIndexedArray

template<typename T >

vtkIndexedArray

A utility alias for creating a wrapper array around an existing array and reindexing its components.

In order to be usefully included in the dispatchers, these arrays need to be instantiated at the vtk library compile time.

An example of potential usage:

vtkNew<vtkIntArray> baseArray;
baseArray->SetNumberOfComponents(1);
baseArray->SetNumberOfTuples(100);
auto range = vtk::DataArrayValueRange<1>(baseArray);
std::iota(range.begin(), range.end(), 0);
 
vtkNew<vtkIdList> handles;
handles->SetNumberOfIds(100);
for (vtkIdType idx = 0; idx < 100; idx++)
{
  handles->SetId(idx, 99-idx);
}
 
vtkNew<vtkIndexed<int>> indexedArr;
indexedArr->SetBackend(std::make_shared<vtkIndexedImplicitBackend<int>>(handles, baseArray));
indexedArr->SetNumberOfComponents(1);
indexedArr->SetNumberOfTuples(100);
CHECK(indexedArr->GetValue(57) == 42); // always true

See also

vtkImplicitArray vtkIndexedImplicitBackend

Definition at line 58 of file vtkIndexedArray.h.

Function Documentation

vtkExternSecondOrderTemplateMacro()

vtkExternSecondOrderTemplateMacro	(	extern template class VTKCOMMONCORE_EXPORT	vtkImplicitArray,
		vtkIndexedImplicitBackend
	)