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# Graphics/vtkThresholdPoints.h

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    00001 /*=========================================================================
    00002
    00003   Program:   Visualization Toolkit
    00004   Module:    $RCSfile: vtkThresholdPoints.h,v $
    00005   Language:  C++
    00006
    00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen
    00008   All rights reserved.
    00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
    00010
    00011      This software is distributed WITHOUT ANY WARRANTY; without even
    00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
    00013      PURPOSE.  See the above copyright notice for more information.
    00014
    00015 =========================================================================*/
    00048 #ifndef __vtkThresholdPoints_h
    00049 #define __vtkThresholdPoints_h
    00050
    00051 #include "vtkDataSetToPolyDataFilter.h"
    00052
    00053 class VTK_GRAPHICS_EXPORT vtkThresholdPoints : public vtkDataSetToPolyDataFilter
    00054 {
    00055 public:
    00056   static vtkThresholdPoints *New();
    00057   vtkTypeRevisionMacro(vtkThresholdPoints,vtkDataSetToPolyDataFilter);
    00058   void PrintSelf(ostream& os, vtkIndent indent);
    00059
    00061   void ThresholdByLower(float lower);
    00062
    00064   void ThresholdByUpper(float upper);
    00065
    00068   void ThresholdBetween(float lower, float upper);
    00069
    00071
    00072   vtkGetMacro(UpperThreshold,float);
    00073   vtkGetMacro(LowerThreshold,float);
    00075
    00076 protected:
    00077   vtkThresholdPoints();
    00078   ~vtkThresholdPoints() {};
    00079
    00080   // Usual data generation method
    00081   void Execute();
    00082
    00083   float LowerThreshold;
    00084   float UpperThreshold;
    00085
    00086   //BTX
    00087   int (vtkThresholdPoints::*ThresholdFunction)(float s);
    00088   //ETX
    00089
    00090   int Lower(float s) {return ( s <= this->LowerThreshold ? 1 : 0 );};
    00091   int Upper(float s) {return ( s >= this->UpperThreshold ? 1 : 0 );};
    00092   int Between(float s) {return ( s >= this->LowerThreshold ?
    00093                                ( s <= this->UpperThreshold ? 1 : 0 ) : 0 );};
    00094 private:
    00095   vtkThresholdPoints(const vtkThresholdPoints&);  // Not implemented.
    00096   void operator=(const vtkThresholdPoints&);  // Not implemented.
    00097 };
    00098
    00099 #endif