vtkCellLinks.h
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00031 #ifndef __vtkCellLinks_h
00032 #define __vtkCellLinks_h
00033
00034 #include "vtkObject.h"
00035 class vtkDataSet;
00036 class vtkCellArray;
00037
00038 class VTK_COMMON_EXPORT vtkCellLinks : public vtkObject
00039 {
00040 public:
00041
00042
00043 class Link {
00044 public:
00045 unsigned short ncells;
00046 vtkIdType *cells;
00047 };
00048
00049
00050 static vtkCellLinks *New();
00051 vtkTypeRevisionMacro(vtkCellLinks,vtkObject);
00052
00055 void Allocate(vtkIdType numLinks, vtkIdType ext=1000);
00056
00058 Link &GetLink(vtkIdType ptId) {return this->Array[ptId];};
00059
00061 unsigned short GetNcells(vtkIdType ptId) { return this->Array[ptId].ncells;};
00062
00064 void BuildLinks(vtkDataSet *data);
00065
00067 void BuildLinks(vtkDataSet *data, vtkCellArray *Connectivity);
00068
00070 vtkIdType *GetCells(vtkIdType ptId) {return this->Array[ptId].cells;};
00071
00074 vtkIdType InsertNextPoint(int numLinks);
00075
00079 void InsertNextCellReference(vtkIdType ptId, vtkIdType cellId);
00080
00082 void DeletePoint(vtkIdType ptId);
00083
00087 void RemoveCellReference(vtkIdType cellId, vtkIdType ptId);
00088
00092 void AddCellReference(vtkIdType cellId, vtkIdType ptId);
00093
00096 void ResizeCellList(vtkIdType ptId, int size);
00097
00099 void Squeeze();
00100
00102 void Reset();
00103
00110 unsigned long GetActualMemorySize();
00111
00114 void DeepCopy(vtkCellLinks *src);
00115
00116 protected:
00117 vtkCellLinks():Array(NULL),Size(0),MaxId(-1),Extend(1000) {};
00118 ~vtkCellLinks();
00119
00121 void IncrementLinkCount(vtkIdType ptId) { this->Array[ptId].ncells++;};
00122
00123 void AllocateLinks(vtkIdType n);
00124
00126
00127 void InsertCellReference(vtkIdType ptId, unsigned short pos,
00128 vtkIdType cellId);
00130
00131 Link *Array;
00132 vtkIdType Size;
00133 vtkIdType MaxId;
00134 vtkIdType Extend;
00135 Link *Resize(vtkIdType sz);
00136 private:
00137 vtkCellLinks(const vtkCellLinks&);
00138 void operator=(const vtkCellLinks&);
00139 };
00140
00141
00142 inline void vtkCellLinks::InsertCellReference(vtkIdType ptId,
00143 unsigned short pos,
00144 vtkIdType cellId)
00145 {
00146 this->Array[ptId].cells[pos] = cellId;
00147 }
00148
00149 inline void vtkCellLinks::DeletePoint(vtkIdType ptId)
00150 {
00151 this->Array[ptId].ncells = 0;
00152 delete [] this->Array[ptId].cells;
00153 this->Array[ptId].cells = NULL;
00154 }
00155
00156 inline void vtkCellLinks::InsertNextCellReference(vtkIdType ptId,
00157 vtkIdType cellId)
00158 {
00159 this->Array[ptId].cells[this->Array[ptId].ncells++] = cellId;
00160 }
00161
00162 inline void vtkCellLinks::RemoveCellReference(vtkIdType cellId, vtkIdType ptId)
00163 {
00164 vtkIdType *cells=this->Array[ptId].cells;
00165 int ncells=this->Array[ptId].ncells;
00166
00167 for (int i=0; i < ncells; i++)
00168 {
00169 if (cells[i] == cellId)
00170 {
00171 for (int j=i; j < (ncells-1); j++)
00172 {
00173 cells[j] = cells[j+1];
00174 }
00175 this->Array[ptId].ncells--;
00176 break;
00177 }
00178 }
00179 }
00180
00181 inline void vtkCellLinks::AddCellReference(vtkIdType cellId, vtkIdType ptId)
00182 {
00183 this->Array[ptId].cells[this->Array[ptId].ncells++] = cellId;
00184 }
00185
00186 inline void vtkCellLinks::ResizeCellList(vtkIdType ptId, int size)
00187 {
00188 int newSize;
00189 vtkIdType *cells;
00190
00191 newSize = this->Array[ptId].ncells + size;
00192 cells = new vtkIdType[newSize];
00193 memcpy(cells, this->Array[ptId].cells,
00194 this->Array[ptId].ncells*sizeof(vtkIdType));
00195 delete [] this->Array[ptId].cells;
00196 this->Array[ptId].cells = cells;
00197 }
00198
00199 #endif
00200