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Common/vtkBitArray.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkBitArray.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 =========================================================================*/
00028 #ifndef __vtkBitArray_h
00029 #define __vtkBitArray_h
00030 
00031 #include "vtkDataArray.h"
00032 
00033 class VTK_COMMON_EXPORT vtkBitArray : public vtkDataArray
00034 {
00035 public:
00036   static vtkBitArray *New();
00037   vtkTypeRevisionMacro(vtkBitArray,vtkDataArray);
00038   void PrintSelf(ostream& os, vtkIndent indent);
00039 
00042   int Allocate(const vtkIdType sz, const vtkIdType ext=1000);
00043 
00045   void Initialize();
00046 
00047   // satisfy vtkDataArray API
00048   int GetDataType() {return VTK_BIT;};
00049   int GetDataTypeSize() { return 0; }
00050   
00052   void SetNumberOfTuples(const vtkIdType number);
00053 
00056   float *GetTuple(const vtkIdType i);
00057 
00059 
00060   void GetTuple(const vtkIdType i, float * tuple);
00061   void GetTuple(const vtkIdType i, double * tuple);
00063   
00065 
00066   void SetTuple(const vtkIdType i, const float * tuple);
00067   void SetTuple(const vtkIdType i, const double * tuple);
00069   
00071 
00073   void InsertTuple(const vtkIdType i, const float * tuple);
00074   void InsertTuple(const vtkIdType i, const double * tuple);
00076 
00078 
00080   vtkIdType InsertNextTuple(const float * tuple);
00081   vtkIdType InsertNextTuple(const double * tuple);
00083 
00088   void SetComponent(const vtkIdType i, const int j, float c);
00089 
00091   void Squeeze();
00092 
00094   virtual void Resize(vtkIdType numTuples);
00095 
00097   int GetValue(const vtkIdType id);
00098 
00104   void SetNumberOfValues(const vtkIdType number);
00105 
00108   void SetValue(const vtkIdType id, const int value);
00109 
00111 
00112   void InsertValue(const vtkIdType id, const int i);
00113   vtkIdType InsertNextValue(const int i);
00115 
00119   virtual void InsertComponent(const vtkIdType i, const int j, float c);
00120 
00122   unsigned char *GetPointer(const vtkIdType id) {return this->Array + id/8;}
00123 
00125 
00128   unsigned char *WritePointer(const vtkIdType id, const vtkIdType number);
00129   void *GetVoidPointer(const vtkIdType id)
00130     {return (void *)this->GetPointer(id);};
00132 
00134   void DeepCopy(vtkDataArray *da);
00135 
00137 
00143   void SetArray(unsigned char* array, vtkIdType size, int save);
00144   void SetVoidArray(void *array, vtkIdType size, int save) 
00145     {this->SetArray((unsigned char *)array, size, save);};
00147 
00148  
00149 protected:
00150   vtkBitArray(vtkIdType numComp=1);
00151   ~vtkBitArray();
00152 
00153   unsigned char *Array;   // pointer to data
00154   unsigned char *ResizeAndExtend(const vtkIdType sz);
00155     // function to resize data
00156 
00157   int TupleSize; //used for data conversion
00158   float *Tuple;
00159 
00160   int SaveUserArray;
00161 
00162 private:
00163   // hide superclass' DeepCopy() from the user and the compiler
00164   void DeepCopy(vtkDataArray &da) {this->vtkDataArray::DeepCopy(&da);}
00165   
00166 private:
00167   vtkBitArray(const vtkBitArray&);  // Not implemented.
00168   void operator=(const vtkBitArray&);  // Not implemented.
00169 };
00170 
00171 inline unsigned char *vtkBitArray::WritePointer(const vtkIdType id,
00172                                                 const vtkIdType number)
00173 {
00174   vtkIdType newSize=id+number;
00175   if ( newSize > this->Size )
00176     {
00177     this->ResizeAndExtend(newSize);
00178     }
00179   if ( (--newSize) > this->MaxId )
00180     {
00181     this->MaxId = newSize;
00182     }
00183   return this->Array + id/8;
00184 }
00185 
00186 inline void vtkBitArray::SetNumberOfValues(const vtkIdType number) 
00187 {
00188   this->Allocate(number);
00189   this->MaxId = number - 1;
00190 }
00191 
00192 inline void vtkBitArray::SetValue(const vtkIdType id, const int value) 
00193 {
00194   if (value)
00195     {
00196     this->Array[id/8] |= (0x80 >> id%8);
00197     }
00198   else
00199     {
00200     this->Array[id/8] &= (~(0x80 >> id%8));
00201     }
00202 }
00203 
00204 inline void vtkBitArray::InsertValue(const vtkIdType id, const int i)
00205 {
00206   if ( id >= this->Size )
00207     {
00208     this->ResizeAndExtend(id+1);
00209     }
00210   if (i)
00211     {
00212     this->Array[id/8] |= (0x80 >> id%8);
00213     }
00214   else
00215     {
00216     this->Array[id/8] &= (~(0x80 >> id%8));
00217     }
00218   if ( id > this->MaxId )
00219     {
00220     this->MaxId = id;
00221     }
00222 }
00223 
00224 inline vtkIdType vtkBitArray::InsertNextValue(const int i)
00225 {
00226   this->InsertValue (++this->MaxId,i); return this->MaxId;
00227 }
00228 
00229 inline void vtkBitArray::Squeeze() {this->ResizeAndExtend (this->MaxId+1);}
00230 
00231 #endif
00232