VTK
vtkExtractSelectedFrustum.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkExtractSelectedFrustum.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
39 #ifndef vtkExtractSelectedFrustum_h
40 #define vtkExtractSelectedFrustum_h
41 
42 #include "vtkFiltersGeneralModule.h" // For export macro
44 
45 class vtkPlanes;
46 class vtkInformation;
48 class vtkCell;
49 class vtkPoints;
50 class vtkDoubleArray;
51 
52 class VTKFILTERSGENERAL_EXPORT vtkExtractSelectedFrustum : public vtkExtractSelectionBase
53 {
54 public:
57  void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
58 
62  vtkMTimeType GetMTime() VTK_OVERRIDE;
63 
65 
68  virtual void SetFrustum(vtkPlanes*);
69  vtkGetObjectMacro(Frustum,vtkPlanes);
71 
81  void CreateFrustum(double vertices[32]);
82 
84 
88  vtkGetObjectMacro(ClipPoints, vtkPoints);
90 
92 
95  vtkSetMacro(FieldType,int);
96  vtkGetMacro(FieldType,int);
98 
100 
104  vtkSetMacro(ContainingCells,int);
105  vtkGetMacro(ContainingCells,int);
107 
111  int OverallBoundsTest(double *bounds);
112 
114 
118  vtkSetMacro(ShowBounds,int);
119  vtkGetMacro(ShowBounds,int);
120  vtkBooleanMacro(ShowBounds,int);
122 
124 
127  vtkSetMacro(InsideOut,int);
128  vtkGetMacro(InsideOut,int);
129  vtkBooleanMacro(InsideOut,int);
131 
132 protected:
134  ~vtkExtractSelectedFrustum() VTK_OVERRIDE;
135 
136  // sets up output dataset
137  int RequestDataObject(vtkInformation* request,
138  vtkInformationVector** inputVector,
139  vtkInformationVector* outputVector) VTK_OVERRIDE;
140 
141  //execution
142  int RequestData(vtkInformation *,
143  vtkInformationVector **, vtkInformationVector *) VTK_OVERRIDE;
144  int ABoxFrustumIsect(double bounds[], vtkCell *cell);
145  int FrustumClipPolygon(int nverts,
146  double *ivlist, double *wvlist, double *ovlist);
147  void PlaneClipPolygon(int nverts, double *ivlist,
148  int pid, int &noverts, double *ovlist);
149  void PlaneClipEdge(double *V0, double *V1,
150  int pid, int &noverts, double *overts);
151  int IsectDegenerateCell(vtkCell *cell);
152 
153 
154  //used in CreateFrustum
155  void ComputePlane(int idx,
156  double v0[3], double v1[2], double v2[3],
157  vtkPoints *points, vtkDoubleArray *norms);
158 
159  //modes
160  int FieldType;
161  int ContainingCells;
162  int InsideOut;
163 
164  //used internally
165  vtkPlanes *Frustum;
166  int np_vertids[6][2];
167 
168  //for debugging
169  vtkPoints *ClipPoints;
170  int NumRejects;
171  int NumIsects;
172  int NumAccepts;
173  int ShowBounds;
174 
175 private:
176  vtkExtractSelectedFrustum(const vtkExtractSelectedFrustum&) VTK_DELETE_FUNCTION;
177  void operator=(const vtkExtractSelectedFrustum&) VTK_DELETE_FUNCTION;
178 
179 };
180 
181 #endif
vtkPoints
represent and manipulate 3D points
Definition: vtkPoints.h:40
vtkExtractSelectionBase.h
vtkExtractSelectedFrustum::New
static vtkExtractSelectedFrustum * New()
vtkInformationVector
Store zero or more vtkInformation instances.
Definition: vtkInformationVector.h:42
vtkPlanes
implicit function for convex set of planes
Definition: vtkPlanes.h:55
vtkExtractSelectedFrustum::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkMTimeType
vtkTypeUInt64 vtkMTimeType
Definition: vtkType.h:248
vtkX3D::points
@ points
Definition: vtkX3D.h:446
vtkCell
abstract class to specify cell behavior
Definition: vtkCell.h:60
vertices
std::pair< boost::graph_traits< vtkGraph * >::vertex_iterator, boost::graph_traits< vtkGraph * >::vertex_iterator > vertices(vtkGraph *g)
Definition: vtkBoostGraphAdapter.h:838
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:40
vtkExtractSelectedFrustum::GetMTime
vtkMTimeType GetMTime() override
Return the MTime taking into account changes to the Frustum.
vtkBooleanMacro
vtkBooleanMacro(IgnoreDriverBugs, bool)
Updates the extensions string.
vtkInformation
Store vtkAlgorithm input/output information.
Definition: vtkInformation.h:87
vtkSetMacro
vtkSetMacro(IgnoreDriverBugs, bool)
Updates the extensions string.
vtkExtractSelectionBase
abstract base class for all extract selection filters.
Definition: vtkExtractSelectionBase.h:31
vtkDoubleArray
dynamic, self-adjusting array of double
Definition: vtkDoubleArray.h:42
vtkExtractSelectedFrustum
Returns the portion of the input dataset that lies within a selection frustum.
Definition: vtkExtractSelectedFrustum.h:53