VTK  9.1.0
vtkHull.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkHull.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=========================================================================*/
70#ifndef vtkHull_h
71#define vtkHull_h
72
73#include "vtkFiltersCoreModule.h" // For export macro
75
76class vtkCellArray;
77class vtkPlanes;
78class vtkPoints;
79class vtkPolyData;
80
81class VTKFILTERSCORE_EXPORT vtkHull : public vtkPolyDataAlgorithm
82{
83public:
84 static vtkHull* New();
86 void PrintSelf(ostream& os, vtkIndent indent) override;
87
91 void RemoveAllPlanes(void);
92
94
105 int AddPlane(double A, double B, double C);
106 int AddPlane(double plane[3]);
108
110
118 void SetPlane(int i, double A, double B, double C);
119 void SetPlane(int i, double plane[3]);
121
123
127 int AddPlane(double A, double B, double C, double D);
128 int AddPlane(double plane[3], double D);
129 void SetPlane(int i, double A, double B, double C, double D);
130 void SetPlane(int i, double plane[3], double D);
132
137 void SetPlanes(vtkPlanes* planes);
138
140
143 vtkGetMacro(NumberOfPlanes, int);
145
152
160
166
177
179
190 void GenerateHull(vtkPolyData* pd, double* bounds);
192 vtkPolyData* pd, double xmin, double xmax, double ymin, double ymax, double zmin, double zmax);
194
195protected:
197 ~vtkHull() override;
198
199 // The planes - 4 doubles per plane for A, B, C, D
200 double* Planes;
201
202 // This indicates the current size (in planes - 4*sizeof(double)) of
203 // the this->Planes array. Planes are allocated in chunks so that the
204 // array does not need to be reallocated every time a new plane is added
206
207 // The number of planes that have been added
209
210 // Internal method used to find the position of each plane
212
213 // Internal method used to create the actual polygons from the set
214 // of planes
215 void ClipPolygonsFromPlanes(vtkPoints* points, vtkCellArray* polys, const double* bounds);
216
217 // Internal method used to create the initial "big" polygon from the
218 // plane equation. This polygon is clipped by all other planes to form
219 // the final polygon (or it may be clipped entirely)
220 void CreateInitialPolygon(double*, int, const double*);
221
222 // The method that does it all...
224
225private:
226 vtkHull(const vtkHull&) = delete;
227 void operator=(const vtkHull&) = delete;
228};
229
230#endif
object to represent cell connectivity
Definition: vtkCellArray.h:290
produce an n-sided convex hull
Definition: vtkHull.h:82
void AddCubeVertexPlanes()
Add the 8 planes that represent the vertices of a cube - the combination of the three face planes con...
double * Planes
Definition: vtkHull.h:200
void AddCubeEdgePlanes()
Add the 12 planes that represent the edges of a cube - halfway between the two connecting face planes...
void ClipPolygonsFromPlanes(vtkPoints *points, vtkCellArray *polys, const double *bounds)
void SetPlane(int i, double plane[3], double D)
Variations of AddPlane()/SetPlane() that allow D to be set.
void SetPlane(int i, double plane[3])
Set the normal values for plane i.
int AddPlane(double plane[3], double D)
Variations of AddPlane()/SetPlane() that allow D to be set.
void ComputePlaneDistances(vtkPolyData *input)
int AddPlane(double plane[3])
Add a plane to the current set of planes.
int NumberOfPlanes
Definition: vtkHull.h:208
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void AddRecursiveSpherePlanes(int level)
Add the planes that represent the normals of the vertices of a polygonal sphere formed by recursively...
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
This is called by the superclass.
void CreateInitialPolygon(double *, int, const double *)
void GenerateHull(vtkPolyData *pd, double *bounds)
A special method that is used to generate a polyhedron directly from a set of n planes.
void GenerateHull(vtkPolyData *pd, double xmin, double xmax, double ymin, double ymax, double zmin, double zmax)
A special method that is used to generate a polyhedron directly from a set of n planes.
void RemoveAllPlanes(void)
Remove all planes from the current set of planes.
int AddPlane(double A, double B, double C)
Add a plane to the current set of planes.
void SetPlane(int i, double A, double B, double C, double D)
Variations of AddPlane()/SetPlane() that allow D to be set.
static vtkHull * New()
int AddPlane(double A, double B, double C, double D)
Variations of AddPlane()/SetPlane() that allow D to be set.
void AddCubeFacePlanes()
Add the six planes that make up the faces of a cube - (1,0,0), (-1, 0, 0), (0,1,0),...
~vtkHull() override
void SetPlanes(vtkPlanes *planes)
Set all the planes at once using a vtkPlanes implicit function.
int PlanesStorageSize
Definition: vtkHull.h:205
void SetPlane(int i, double A, double B, double C)
Set the normal values for plane i.
a simple class to control print indentation
Definition: vtkIndent.h:113
Store zero or more vtkInformation instances.
Store vtkAlgorithm input/output information.
implicit function for convex set of planes
Definition: vtkPlanes.h:159
represent and manipulate 3D points
Definition: vtkPoints.h:143
Superclass for algorithms that produce only polydata as output.
concrete dataset represents vertices, lines, polygons, and triangle strips
Definition: vtkPolyData.h:195