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/*=========================================================================
Program: Visualization Toolkit
Module: vtkGenericAttribute.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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.
=========================================================================*/
/**
* @class vtkGenericAttribute
* @brief abstract class defined API for attribute data
*
* vtkGenericAttribute is an abstract class that defines an API for attribute
* data. Attribute data is data associated with the topology or geometry of
* a dataset (i.e., points, cells, etc.). vtkGenericAttribute is part of the
* adaptor framework (see GenericFiltering/README.html).
*
* vtkGenericAttribute provides a more general interface to attribute data
* than its counterpart vtkDataArray (which assumes a linear, contiguous
* array). It adopts an iterator interface, and allows attributes to be
* associated with points, edges, faces, or edges.
*/
#ifndef vtkGenericAttribute_h
#define vtkGenericAttribute_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"
class vtkGenericCellIterator;
class vtkGenericAdaptorCell;
class vtkGenericPointIterator;
enum
{
vtkPointCentered,
vtkCellCentered,
vtkBoundaryCentered
};
class VTKCOMMONDATAMODEL_EXPORT vtkGenericAttribute : public vtkObject
{
public:
vtkTypeMacro(vtkGenericAttribute, vtkObject);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Name of the attribute. (e.g. "velocity")
* \post result_may_not_exist: result!=0 || result==0
*/
virtual const char* GetName() = 0;
/**
* Dimension of the attribute. (1 for scalar, 3 for velocity)
* \post positive_result: result>=0
* \post GetType()==VTK_SCALARS implies result==1
* \post (GetType()==VTK_VECTORS||(GetType()==VTK_NORMALS)||(GetType()==VTK_TCOORDS) implies
* result==3 \post GetType()==VTK_TENSORS implies result==6
*/
virtual int GetNumberOfComponents() = 0;
/**
* Is the attribute centered either on points, cells or boundaries?
* \post valid_result: (result==vtkPointCentered)||(result==vtkCellCentered)
*/
virtual int GetCentering() = 0;
/**
* Type of the attribute: scalar, vector, normal, texture coordinate, tensor
* \post valid_result: (result==vtkDataSetAttributes::SCALARS)
* ||(result==vtkDataSetAttributes::VECTORS)
* ||(result==vtkDataSetAttributes::NORMALS)
* ||(result==vtkDataSetAttributes::TCOORDS)
* ||(result==vtkDataSetAttributes::TENSORS)
*/
virtual int GetType() = 0;
/**
* Type of the components of the attribute: int, float, double
* \post valid_result: (result==VTK_BIT) ||(result==VTK_CHAR)
* ||(result==VTK_UNSIGNED_CHAR) ||(result==VTK_SHORT)
* ||(result==VTK_UNSIGNED_SHORT)||(result==VTK_INT)
* ||(result==VTK_UNSIGNED_INT) ||(result==VTK_LONG)
* ||(result==VTK_UNSIGNED_LONG) ||(result==VTK_FLOAT)
* ||(result==VTK_DOUBLE) ||(result==VTK_ID_TYPE)
*/
virtual int GetComponentType() = 0;
/**
* Number of tuples.
* \post valid_result: result>=0
*/
virtual vtkIdType GetSize() = 0;
/**
* Size in kibibytes (1024 bytes) taken by the attribute.
*/
virtual unsigned long GetActualMemorySize() = 0;
/**
* Range of the attribute component `component'. If `component'==-1, it
* returns the range of the magnitude (euclidean norm).
* It returns double, even if GetType()==VTK_INT.
* NOT THREAD SAFE
* \pre valid_component: (component>=-1)&&(component<GetNumberOfComponents())
* \post result_exists: result!=0
*/
virtual double* GetRange(int component = 0) = 0;
/**
* Range of the attribute component `component'. If `component'==-1, it
* returns the range of the magnitude (euclidean norm).
* THREAD SAFE
* \pre valid_component: (component>=-1)&&(component<GetNumberOfComponents())
*/
virtual void GetRange(int component, double range[2]) = 0;
/**
* Return the maximum euclidean norm for the tuples.
* \post positive_result: result>=0
*/
virtual double GetMaxNorm() = 0;
/**
* Attribute at all points of cell `c'.
* \pre c_exists: c!=0
* \pre c_valid: !c->IsAtEnd()
* \post result_exists: result!=0
* \post valid_result: sizeof(result)==GetNumberOfComponents()*c->GetCell()->GetNumberOfPoints()
*/
virtual double* GetTuple(vtkGenericAdaptorCell* c) = 0;
/**
* Put attribute at all points of cell `c' in `tuple'.
* \pre c_exists: c!=0
* \pre c_valid: !c->IsAtEnd()
* \pre tuple_exists: tuple!=0
* \pre valid_tuple: sizeof(tuple)>=GetNumberOfComponents()*c->GetCell()->GetNumberOfPoints()
*/
virtual void GetTuple(vtkGenericAdaptorCell* c, double* tuple) = 0;
/**
* Attribute at all points of cell `c'.
* \pre c_exists: c!=0
* \pre c_valid: !c->IsAtEnd()
* \post result_exists: result!=0
* \post valid_result: sizeof(result)==GetNumberOfComponents()*c->GetCell()->GetNumberOfPoints()
*/
virtual double* GetTuple(vtkGenericCellIterator* c) = 0;
/**
* Put attribute at all points of cell `c' in `tuple'.
* \pre c_exists: c!=0
* \pre c_valid: !c->IsAtEnd()
* \pre tuple_exists: tuple!=0
* \pre valid_tuple: sizeof(tuple)>=GetNumberOfComponents()*c->GetCell()->GetNumberOfPoints()
*/
virtual void GetTuple(vtkGenericCellIterator* c, double* tuple) = 0;
/**
* Value of the attribute at position `p'.
* \pre p_exists: p!=0
* \pre p_valid: !p->IsAtEnd()
* \post result_exists: result!=0
* \post valid_result_size: sizeof(result)==GetNumberOfComponents()
*/
virtual double* GetTuple(vtkGenericPointIterator* p) = 0;
/**
* Put the value of the attribute at position `p' into `tuple'.
* \pre p_exists: p!=0
* \pre p_valid: !p->IsAtEnd()
* \pre tuple_exists: tuple!=0
* \pre valid_tuple_size: sizeof(tuple)>=GetNumberOfComponents()
*/
virtual void GetTuple(vtkGenericPointIterator* p, double* tuple) = 0;
/**
* Put component `i' of the attribute at all points of cell `c' in `values'.
* \pre valid_component: (i>=0) && (i<GetNumberOfComponents())
* \pre c_exists: c!=0
* \pre c_valid: !c->IsAtEnd()
* \pre values_exist: values!=0
* \pre valid_values: sizeof(values)>=c->GetCell()->GetNumberOfPoints()
*/
virtual void GetComponent(int i, vtkGenericCellIterator* c, double* values) = 0;
/**
* Value of the component `i' of the attribute at position `p'.
* \pre valid_component: (i>=0) && (i<GetNumberOfComponents())
* \pre p_exists: p!=0
* \pre p_valid: !p->IsAtEnd()
*/
virtual double GetComponent(int i, vtkGenericPointIterator* p) = 0;
/**
* Recursive duplication of `other' in `this'.
* \pre other_exists: other!=0
* \pre not_self: other!=this
*/
virtual void DeepCopy(vtkGenericAttribute* other) = 0;
/**
* Update `this' using fields of `other'.
* \pre other_exists: other!=0
* \pre not_self: other!=this
*/
virtual void ShallowCopy(vtkGenericAttribute* other) = 0;
protected:
vtkGenericAttribute();
~vtkGenericAttribute() override;
private:
vtkGenericAttribute(const vtkGenericAttribute&) = delete;
void operator=(const vtkGenericAttribute&) = delete;
};
#endif