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Graphics/vtkThreshold.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkThreshold.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00067 #ifndef __vtkThreshold_h
00068 #define __vtkThreshold_h
00069 
00070 #include "vtkDataSetToUnstructuredGridFilter.h"
00071 
00072 #define VTK_ATTRIBUTE_MODE_DEFAULT 0
00073 #define VTK_ATTRIBUTE_MODE_USE_POINT_DATA 1
00074 #define VTK_ATTRIBUTE_MODE_USE_CELL_DATA 2
00075 
00076 class VTK_GRAPHICS_EXPORT vtkThreshold : public vtkDataSetToUnstructuredGridFilter
00077 {
00078 public:
00079   static vtkThreshold *New();
00080   vtkTypeMacro(vtkThreshold,vtkDataSetToUnstructuredGridFilter);
00081   void PrintSelf(ostream& os, vtkIndent indent);
00082 
00085   void ThresholdByLower(float lower);
00086 
00089   void ThresholdByUpper(float upper);
00090 
00093   void ThresholdBetween(float lower, float upper);
00094 
00096 
00097   vtkGetMacro(UpperThreshold,float);
00098   vtkGetMacro(LowerThreshold,float);
00100 
00102 
00108   vtkSetMacro(AttributeMode,int);
00109   vtkGetMacro(AttributeMode,int);
00110   void SetAttributeModeToDefault() 
00111     {this->SetAttributeMode(VTK_ATTRIBUTE_MODE_DEFAULT);};
00112   void SetAttributeModeToUsePointData() 
00113     {this->SetAttributeMode(VTK_ATTRIBUTE_MODE_USE_POINT_DATA);};
00114   void SetAttributeModeToUseCellData() 
00115     {this->SetAttributeMode(VTK_ATTRIBUTE_MODE_USE_CELL_DATA);};
00116   const char *GetAttributeModeAsString();
00118 
00120 
00124   vtkSetMacro(AllScalars,int);
00125   vtkGetMacro(AllScalars,int);
00126   vtkBooleanMacro(AllScalars,int);
00128   
00130 
00132   vtkSetStringMacro(ArrayName);
00133   vtkGetStringMacro(ArrayName);
00135   
00136 protected:
00137   vtkThreshold();
00138   ~vtkThreshold();
00139 
00140   // Usual data generation method
00141   void Execute();
00142 
00143   int   AllScalars;
00144   float LowerThreshold;
00145   float UpperThreshold;
00146   int   AttributeMode;
00147 
00148   //BTX
00149   int (vtkThreshold::*ThresholdFunction)(float s);
00150   //ETX
00151 
00152   int Lower(float s) {return ( s <= this->LowerThreshold ? 1 : 0 );};
00153   int Upper(float s) {return ( s >= this->UpperThreshold ? 1 : 0 );};
00154   int Between(float s) {return ( s >= this->LowerThreshold ? 
00155                                ( s <= this->UpperThreshold ? 1 : 0 ) : 0 );};
00156 
00157   char *ArrayName;
00158 private:
00159   vtkThreshold(const vtkThreshold&);  // Not implemented.
00160   void operator=(const vtkThreshold&);  // Not implemented.
00161 };
00162 
00163 #endif

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