VTK  9.3.0
vtkPolyDataNormals.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
65 #ifndef vtkPolyDataNormals_h
66 #define vtkPolyDataNormals_h
67 
68 #include "vtkFiltersCoreModule.h" // For export macro
69 #include "vtkPolyDataAlgorithm.h"
70 
71 VTK_ABI_NAMESPACE_BEGIN
72 class vtkFloatArray;
73 class vtkIdList;
74 class vtkPolyData;
75 
76 class VTKFILTERSCORE_EXPORT vtkPolyDataNormals : public vtkPolyDataAlgorithm
77 {
78 public:
80  void PrintSelf(ostream& os, vtkIndent indent) override;
81 
88 
90 
95  vtkSetClampMacro(FeatureAngle, double, 0.0, 180.0);
96  vtkGetMacro(FeatureAngle, double);
98 
100 
103  vtkSetMacro(Splitting, vtkTypeBool);
104  vtkGetMacro(Splitting, vtkTypeBool);
105  vtkBooleanMacro(Splitting, vtkTypeBool);
107 
109 
112  vtkSetMacro(Consistency, vtkTypeBool);
113  vtkGetMacro(Consistency, vtkTypeBool);
114  vtkBooleanMacro(Consistency, vtkTypeBool);
116 
118 
129  vtkSetMacro(AutoOrientNormals, vtkTypeBool);
130  vtkGetMacro(AutoOrientNormals, vtkTypeBool);
131  vtkBooleanMacro(AutoOrientNormals, vtkTypeBool);
133 
135 
138  vtkSetMacro(ComputePointNormals, vtkTypeBool);
139  vtkGetMacro(ComputePointNormals, vtkTypeBool);
140  vtkBooleanMacro(ComputePointNormals, vtkTypeBool);
142 
144 
147  vtkSetMacro(ComputeCellNormals, vtkTypeBool);
148  vtkGetMacro(ComputeCellNormals, vtkTypeBool);
149  vtkBooleanMacro(ComputeCellNormals, vtkTypeBool);
151 
153 
159  vtkSetMacro(FlipNormals, vtkTypeBool);
160  vtkGetMacro(FlipNormals, vtkTypeBool);
161  vtkBooleanMacro(FlipNormals, vtkTypeBool);
163 
165 
170  vtkSetMacro(NonManifoldTraversal, vtkTypeBool);
171  vtkGetMacro(NonManifoldTraversal, vtkTypeBool);
172  vtkBooleanMacro(NonManifoldTraversal, vtkTypeBool);
174 
176 
181  vtkSetClampMacro(OutputPointsPrecision, int, SINGLE_PRECISION, DEFAULT_PRECISION);
182  vtkGetMacro(OutputPointsPrecision, int);
184 
185 protected:
187  ~vtkPolyDataNormals() override = default;
188 
189  // Usual data generation method
191 
192  double FeatureAngle;
202 
203 private:
204  double CosAngle;
205 
206  struct MarkAndSplitFunctor;
207 
208  // Uses the list of cell ids (this->Wave) to propagate a wave of
209  // checked and properly ordered polygons.
210  void TraverseAndOrder(vtkPolyData* oldMesh, vtkPolyData* newMesh, vtkIdList* wave,
211  vtkIdList* wave2, vtkIdList* cellPointIds, vtkIdList* cellIds, vtkIdList* neighborPointIds,
212  std::vector<char>& visited, vtkIdType& numFlips);
213 
214  // check all the points whether they lie on a feature
215  // edge. If so, split the point (i.e., duplicate it) to topologically
216  // separate the mesh.
217  void ExecuteMarkAndSplit(vtkPolyData* oldMesh, vtkPolyData* newMesh, vtkFloatArray* cellNormals,
218  vtkIdList* map, vtkIdType numPoints, vtkIdType numPolys, double cosAngle);
219 
220  vtkPolyDataNormals(const vtkPolyDataNormals&) = delete;
221  void operator=(const vtkPolyDataNormals&) = delete;
222 };
223 
224 VTK_ABI_NAMESPACE_END
225 #endif
dynamic, self-adjusting array of float
Definition: vtkFloatArray.h:40
list of point or cell ids
Definition: vtkIdList.h:32
a simple class to control print indentation
Definition: vtkIndent.h:38
Store zero or more vtkInformation instances.
Store vtkAlgorithm input/output information.
Superclass for algorithms that produce only polydata as output.
compute normals for polygonal mesh
static vtkPolyDataNormals * New()
Construct with feature angle=30, splitting and consistency turned on, flipNormals turned off,...
~vtkPolyDataNormals() override=default
vtkTypeBool NonManifoldTraversal
vtkTypeBool ComputeCellNormals
vtkTypeBool ComputePointNormals
vtkTypeBool AutoOrientNormals
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
This is called by the superclass.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
concrete dataset represents vertices, lines, polygons, and triangle strips
Definition: vtkPolyData.h:89
int vtkTypeBool
Definition: vtkABI.h:64
int vtkIdType
Definition: vtkType.h:315