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 =========================================================================*/
00069 #ifndef __vtkPolyDataNormals_h
00070 #define __vtkPolyDataNormals_h
00071 
00072 #include "vtkPolyDataToPolyDataFilter.h"
00073 
00074 class VTK_EXPORT vtkPolyDataNormals : public vtkPolyDataToPolyDataFilter
00075 {
00076 public:
00077   vtkTypeMacro(vtkPolyDataNormals,vtkPolyDataToPolyDataFilter);
00078   void PrintSelf(ostream& os, vtkIndent indent);
00079 
00083   static vtkPolyDataNormals *New();
00084 
00088   vtkSetClampMacro(FeatureAngle,float,0.0,180.0);
00089   vtkGetMacro(FeatureAngle,float);
00090 
00092   vtkSetMacro(Splitting,int);
00093   vtkGetMacro(Splitting,int);
00094   vtkBooleanMacro(Splitting,int);
00095 
00097   vtkSetMacro(Consistency,int);
00098   vtkGetMacro(Consistency,int);
00099   vtkBooleanMacro(Consistency,int);
00100 
00102   vtkSetMacro(ComputePointNormals,int);
00103   vtkGetMacro(ComputePointNormals,int);
00104   vtkBooleanMacro(ComputePointNormals,int);
00105 
00107   vtkSetMacro(ComputeCellNormals,int);
00108   vtkGetMacro(ComputeCellNormals,int);
00109   vtkBooleanMacro(ComputeCellNormals,int);
00110 
00115   vtkSetMacro(FlipNormals,int);
00116   vtkGetMacro(FlipNormals,int);
00117   vtkBooleanMacro(FlipNormals,int);
00118 
00121   vtkSetClampMacro(MaxRecursionDepth,int,10,VTK_LARGE_INTEGER);
00122   vtkGetMacro(MaxRecursionDepth,int);
00123 
00127   vtkSetMacro(NonManifoldTraversal,int);
00128   vtkGetMacro(NonManifoldTraversal,int);
00129   vtkBooleanMacro(NonManifoldTraversal,int);
00130 
00131 protected:
00132   vtkPolyDataNormals();
00133   ~vtkPolyDataNormals() {};
00134   vtkPolyDataNormals(const vtkPolyDataNormals&) {};
00135   void operator=(const vtkPolyDataNormals&) {};
00136 
00137   // Usual data generation method
00138   void Execute();
00139   
00140   void ComputeInputUpdateExtents(vtkDataObject *output);
00141 
00142   float FeatureAngle;
00143   int Splitting;
00144   int Consistency;
00145   int FlipNormals;
00146   int MaxRecursionDepth;
00147   int NonManifoldTraversal;
00148   int ComputePointNormals;
00149   int ComputeCellNormals;
00150 
00151   int Mark;
00152   int NumFlips;
00153   // Returns 1 if neighbor cells need to be checked, 0 otherwise.
00154   // edgeNeighbors is temp storage for this routine to use. We do not
00155   // access its values outside this routine. This is to avoid
00156   // New/Delete's within the routine.
00157   int TraverseAndOrder(int cellId, vtkIdList *edgeNeighbors,
00158              int *Visited,
00159              vtkPolyData *OldMesh, vtkPolyData *NewMesh);
00160 
00161   // edgeNeighbors is temp storage for this routine to use. We do not
00162   // access its values outside this routine. This is to avoid
00163   // New/Delete's within the routine.
00164   void MarkAndReplace(int cellId, int n, int replacement,
00165             vtkNormals *PolyNormals, vtkIdList *edgeNeighbors,
00166             int *Visited, vtkIdList *Map,
00167             vtkPolyData *OldMesh, vtkPolyData *NewMesh,
00168             float CosAngle);
00169 };
00170 
00171 #endif