110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
|
/*=========================================================================
|
||
|
|
|
||
|
|
Program: Visualization Toolkit
|
||
|
|
Module: vtkExtractEdges.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 vtkExtractEdges
|
||
|
|
* @brief extract cell edges from any type of dataset
|
||
|
|
*
|
||
|
|
* vtkExtractEdges is a filter to extract edges from a dataset. Edges
|
||
|
|
* are extracted as lines in an output vtkPolyData.
|
||
|
|
*
|
||
|
|
* There are two modes of extraction depending on the data member
|
||
|
|
* UseAllPoints, If UseAllPoints is enabled, then the output points contain
|
||
|
|
* all of the input points, and the point ids of the output lines (i.e.,
|
||
|
|
* edges) remain unchanged from the input point numbering. If UseAllPoints
|
||
|
|
* is disabled (which is the default), then the numbering of the output points
|
||
|
|
* may change, and any unused points are omitted from the filter output.
|
||
|
|
*
|
||
|
|
* @warning
|
||
|
|
* If present in the filter input, output cell data is produced for the
|
||
|
|
* output edges. Since an edge may be used by more than one cell, this is
|
||
|
|
* potentially an undefined behavior. To ensure deterministic output, the
|
||
|
|
* cell data from the cell with smallest cell id is copied to the output
|
||
|
|
* edge.
|
||
|
|
*
|
||
|
|
* @sa
|
||
|
|
* vtkFeatureEdges
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef vtkExtractEdges_h
|
||
|
|
#define vtkExtractEdges_h
|
||
|
|
|
||
|
|
#include "vtkFiltersCoreModule.h" // For export macro
|
||
|
|
#include "vtkIncrementalPointLocator.h" // Support vtkSmartPointer<>
|
||
|
|
#include "vtkPolyDataAlgorithm.h"
|
||
|
|
|
||
|
|
class VTKFILTERSCORE_EXPORT vtkExtractEdges : public vtkPolyDataAlgorithm
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
///@{
|
||
|
|
/**
|
||
|
|
* Standard methods for instantiation, obtaining type information, and
|
||
|
|
* printing the state of an instance.
|
||
|
|
* default an instance of vtkMergePoints is used.
|
||
|
|
*/
|
||
|
|
static vtkExtractEdges* New();
|
||
|
|
vtkTypeMacro(vtkExtractEdges, vtkPolyDataAlgorithm);
|
||
|
|
void PrintSelf(ostream& os, vtkIndent indent) override;
|
||
|
|
///@}
|
||
|
|
|
||
|
|
///@{
|
||
|
|
/**
|
||
|
|
* Set / get a spatial locator for merging points. By default an instance
|
||
|
|
* of vtkMergePoints is used.
|
||
|
|
*/
|
||
|
|
vtkSetSmartPointerMacro(Locator, vtkIncrementalPointLocator);
|
||
|
|
vtkGetSmartPointerMacro(Locator, vtkIncrementalPointLocator);
|
||
|
|
///@}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create default locator. Used to create one when none is specified.
|
||
|
|
*/
|
||
|
|
void CreateDefaultLocator();
|
||
|
|
|
||
|
|
///@{
|
||
|
|
/**
|
||
|
|
* Indicates whether all of the points of the input mesh should exist in
|
||
|
|
* the output, i.e., whether point renumbering is permitted. By default,
|
||
|
|
* UseAllPoints is disabled, so that unusued points are omitted from the
|
||
|
|
* output.
|
||
|
|
*/
|
||
|
|
vtkSetMacro(UseAllPoints, bool);
|
||
|
|
vtkGetMacro(UseAllPoints, bool);
|
||
|
|
vtkBooleanMacro(UseAllPoints, bool);
|
||
|
|
///@}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return the modified time also considering the locator since it may be
|
||
|
|
* modified independent of this filter.
|
||
|
|
*/
|
||
|
|
vtkMTimeType GetMTime() override;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
vtkExtractEdges();
|
||
|
|
~vtkExtractEdges() override = default;
|
||
|
|
|
||
|
|
vtkSmartPointer<vtkIncrementalPointLocator> Locator;
|
||
|
|
bool UseAllPoints;
|
||
|
|
|
||
|
|
// Usual pipeline methods
|
||
|
|
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
|
||
|
|
int FillInputPortInformation(int port, vtkInformation* info) override;
|
||
|
|
|
||
|
|
private:
|
||
|
|
vtkExtractEdges(const vtkExtractEdges&) = delete;
|
||
|
|
void operator=(const vtkExtractEdges&) = delete;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|