text: /*=========================================================================
  
    Program:   Visualization Toolkit
    Module:    vtkBrownianPoints.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.
  
  =========================================================================*/
  // .NAME vtkBrownianPoints - assign random vector to points
  // .SECTION Description
  // vtkBrownianPoints is a filter object that assigns a random vector (i.e.,
  // magnitude and direction) to each point. The minimum and maximum speed
  // values can be controlled by the user.
  
  // .SECTION See also
  // vtkRandomAttributeGenerator
  
  #ifndef vtkBrownianPoints_h
  #define vtkBrownianPoints_h
  
  #include "vtkFiltersGeneralModule.h" // For export macro
  #include "vtkDataSetAlgorithm.h"
  
  class VTKFILTERSGENERAL_EXPORT vtkBrownianPoints : public vtkDataSetAlgorithm
  {
  public:
    // Description:
    // Create instance with minimum speed 0.0, maximum speed 1.0.
    static vtkBrownianPoints *New();
  
    vtkTypeMacro(vtkBrownianPoints,vtkDataSetAlgorithm);
    void PrintSelf(ostream& os, vtkIndent indent);
  
    // Description:
    // Set the minimum speed value.
    vtkSetClampMacro(MinimumSpeed,double,0.0,VTK_DOUBLE_MAX);
    vtkGetMacro(MinimumSpeed,double);
  
    // Description:
    // Set the maximum speed value.
    vtkSetClampMacro(MaximumSpeed,double,0.0,VTK_DOUBLE_MAX);
    vtkGetMacro(MaximumSpeed,double);
  
  protected:
    vtkBrownianPoints();
    ~vtkBrownianPoints() {}
  
    virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
    double MinimumSpeed;
    double MaximumSpeed;
  private:
    vtkBrownianPoints(const vtkBrownianPoints&) VTK_DELETE_FUNCTION;
    void operator=(const vtkBrownianPoints&) VTK_DELETE_FUNCTION;
  };
  
  #endif
  