dox/Filtering/vtkAbstractPointLocator.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkAbstractPointLocator.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.

=========================================================================*/
#ifndef __vtkAbstractPointLocator_h
#define __vtkAbstractPointLocator_h

#include "vtkLocator.h"

class vtkIdList;

class VTK_FILTERING_EXPORT vtkAbstractPointLocator : public vtkLocator
{
public:
  vtkTypeMacro(vtkAbstractPointLocator,vtkLocator);
  void PrintSelf(ostream& os, vtkIndent indent);


  virtual vtkIdType FindClosestPoint(const double x[3]) = 0;
  vtkIdType FindClosestPoint(double x, double y, double z);


  virtual vtkIdType FindClosestPointWithinRadius(
    double radius, const double x[3], double& dist2) = 0;


  virtual void FindClosestNPoints(
    int N, const double x[3], vtkIdList *result) = 0;
  void FindClosestNPoints(int N, double x, double y, double z,
                          vtkIdList *result);


  virtual void FindPointsWithinRadius(double R, const double x[3],
                                      vtkIdList *result) = 0;
  void FindPointsWithinRadius(double R, double x, double y, double z, 
                                      vtkIdList *result);
  

  virtual double *GetBounds() { return this->Bounds; }
  virtual void GetBounds(double*);


  virtual void FreeSearchStructure() = 0;
  virtual void BuildLocator() = 0;
  virtual void GenerateRepresentation(int level, vtkPolyData *pd) = 0;

protected:
  vtkAbstractPointLocator();
  virtual ~vtkAbstractPointLocator();

  double Bounds[6]; // bounds of points

private:
  vtkAbstractPointLocator(const vtkAbstractPointLocator&);  // Not implemented.
  void operator=(const vtkAbstractPointLocator&);  // Not implemented.
};

#endif

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