Graphics/vtkPolyDataNormals.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkPolyDataNormals.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 =========================================================================*/
00072 #ifndef __vtkPolyDataNormals_h
00073 #define __vtkPolyDataNormals_h
00074 
00075 #include "vtkPolyDataToPolyDataFilter.h"
00076 class vtkFloatArray;
00077 
00078 class VTK_GRAPHICS_EXPORT vtkPolyDataNormals : public vtkPolyDataToPolyDataFilter
00079 {
00080 public:
00081   vtkTypeMacro(vtkPolyDataNormals,vtkPolyDataToPolyDataFilter);
00082   void PrintSelf(ostream& os, vtkIndent indent);
00083 
00087   static vtkPolyDataNormals *New();
00088 
00090 
00093   vtkSetClampMacro(FeatureAngle,float,0.0,180.0);
00094   vtkGetMacro(FeatureAngle,float);
00096 
00098 
00099   vtkSetMacro(Splitting,int);
00100   vtkGetMacro(Splitting,int);
00101   vtkBooleanMacro(Splitting,int);
00103 
00105 
00106   vtkSetMacro(Consistency,int);
00107   vtkGetMacro(Consistency,int);
00108   vtkBooleanMacro(Consistency,int);
00110 
00112 
00113   vtkSetMacro(ComputePointNormals,int);
00114   vtkGetMacro(ComputePointNormals,int);
00115   vtkBooleanMacro(ComputePointNormals,int);
00117 
00119 
00120   vtkSetMacro(ComputeCellNormals,int);
00121   vtkGetMacro(ComputeCellNormals,int);
00122   vtkBooleanMacro(ComputeCellNormals,int);
00124 
00126 
00130   vtkSetMacro(FlipNormals,int);
00131   vtkGetMacro(FlipNormals,int);
00132   vtkBooleanMacro(FlipNormals,int);
00134 
00136 
00139   vtkSetMacro(NonManifoldTraversal,int);
00140   vtkGetMacro(NonManifoldTraversal,int);
00141   vtkBooleanMacro(NonManifoldTraversal,int);
00143 
00144 #ifndef VTK_REMOVE_LEGACY_CODE
00145 
00146 
00149   void SetMaxRecursionDepth(int) 
00150     {VTK_LEGACY_METHOD(SetMaxRecursionDepth,"4.0");}
00151   int GetMaxRecursionDepth()
00152     {VTK_LEGACY_METHOD(GetMaxRecursionDepth,"4.0"); return 0;}
00154 #endif
00155   
00156 protected:
00157   vtkPolyDataNormals();
00158   ~vtkPolyDataNormals() {};
00159 
00160   // Usual data generation method
00161   void Execute();
00162 
00163   float FeatureAngle;
00164   int Splitting;
00165   int Consistency;
00166   int FlipNormals;
00167   int NonManifoldTraversal;
00168   int ComputePointNormals;
00169   int ComputeCellNormals;
00170   int NumFlips;
00171 
00172 private:
00173   vtkIdList *Wave;
00174   vtkIdList *Wave2;
00175   vtkIdList *CellIds;
00176   vtkIdList *Map;
00177   vtkPolyData *OldMesh;
00178   vtkPolyData *NewMesh;
00179   int *Visited;
00180   vtkFloatArray *PolyNormals;
00181   float CosAngle;
00182 
00183   // Uses the list of cell ids (this->Wave) to propagate a wave of
00184   // checked and properly ordered polygons.
00185   void TraverseAndOrder(void);
00186 
00187   // Check the point id give to see whether it lies on a feature
00188   // edge. If so, split the point (i.e., duplicate it) to topologically
00189   // separate the mesh.
00190   void MarkAndSplit(vtkIdType ptId);
00191 
00192 private:
00193   vtkPolyDataNormals(const vtkPolyDataNormals&);  // Not implemented.
00194   void operator=(const vtkPolyDataNormals&);  // Not implemented.
00195 };
00196 
00197 #endif