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/*=========================================================================
Program: Visualization Toolkit
Module: vtkRadiusOutlierRemoval.h
Copyright (c) Kitware, Inc.
All rights reserved.
See LICENSE file 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 vtkRadiusOutlierRemoval
* @brief remove isolated points
*
*
* vtkRadiusOutlierRemoval removes isolated points; i.e., those points that
* have few neighbors within a specified radius. The user must specify the
* radius defining the local region, as well as the isolation threshold
* (i.e., number of neighboring points required for the point to be
* considered isolated). Optionally, users can specify a point locator to
* accelerate local neighborhood search operations. (By default a
* vtkStaticPointLocator will be created.)
*
* Note that while any vtkPointSet type can be provided as input, the output
* is represented by an explicit representation of points via a
* vtkPolyData. This output polydata will populate its instance of vtkPoints,
* but no cells will be defined (i.e., no vtkVertex or vtkPolyVertex are
* contained in the output). Also, after filter execution, the user can
* request a vtkIdType* map which indicates how the input points were mapped
* to the output. A value of map[i] (where i is the ith input point) less
* than 0 means that the ith input point was removed. (See also the
* superclass documentation for accessing the removed points through the
* filter's second output.)
*
* @warning
* This class has been threaded with vtkSMPTools. Using TBB or other
* non-sequential type (set in the CMake variable
* VTK_SMP_IMPLEMENTATION_TYPE) may improve performance significantly.
*
* @sa
* vtkPointCloudFilter vtkStatisticalOutlierRemoval vtkExtractPoints
* vtkThresholdPoints vtkImplicitFunction
*/
#ifndef vtkRadiusOutlierRemoval_h
#define vtkRadiusOutlierRemoval_h
#include "vtkFiltersPointsModule.h" // For export macro
#include "vtkPointCloudFilter.h"
class vtkAbstractPointLocator;
class vtkPointSet;
class VTKFILTERSPOINTS_EXPORT vtkRadiusOutlierRemoval : public vtkPointCloudFilter
{
public:
//@{
/**
* Standard methods for instantiating, obtaining type information, and
* printing information.
*/
static vtkRadiusOutlierRemoval *New();
vtkTypeMacro(vtkRadiusOutlierRemoval,vtkPointCloudFilter);
void PrintSelf(ostream& os, vtkIndent indent);
//@}
//@{
/**
* Specify the local search radius.
*/
vtkSetClampMacro(Radius,double,0.0,VTK_FLOAT_MAX);
vtkGetMacro(Radius,double);
//@}
//@{
/**
* Specify the number of neighbors that a point must have, within
* the specified radius, for the point to not be considered isolated.
*/
vtkSetClampMacro(NumberOfNeighbors,int,1,VTK_INT_MAX);
vtkGetMacro(NumberOfNeighbors,int);
//@}
//@{
/**
* Specify a point locator. By default a vtkStaticPointLocator is
* used. The locator performs efficient searches to locate near a
* specified interpolation position.
*/
void SetLocator(vtkAbstractPointLocator *locator);
vtkGetObjectMacro(Locator,vtkAbstractPointLocator);
//@}
protected:
vtkRadiusOutlierRemoval();
~vtkRadiusOutlierRemoval();
double Radius;
int NumberOfNeighbors;
vtkAbstractPointLocator *Locator;
// All derived classes must implement this method. Note that a side effect of
// the class is to populate the PointMap. Zero is returned if there is a failure.
virtual int FilterPoints(vtkPointSet *input);
private:
vtkRadiusOutlierRemoval(const vtkRadiusOutlierRemoval&) VTK_DELETE_FUNCTION;
void operator=(const vtkRadiusOutlierRemoval&) VTK_DELETE_FUNCTION;
};
#endif
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