VTK  9.2.5
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=========================================================================*/
44#ifndef vtkHull_h
45#define vtkHull_h
46
47#include "vtkFiltersCoreModule.h" // For export macro
49#include <vector> //for storing planes
50
51class vtkCellArray;
52class vtkPlanes;
53class vtkPoints;
54class vtkPolyData;
55
56class VTKFILTERSCORE_EXPORT vtkHull : public vtkPointSetAlgorithm
57{
58public:
60
64 static vtkHull* New();
66 void PrintSelf(ostream& os, vtkIndent indent) override;
68
72 void RemoveAllPlanes(void);
73
75
86 int AddPlane(double A, double B, double C);
87 int AddPlane(double plane[3]);
89
91
99 void SetPlane(int i, double A, double B, double C);
100 void SetPlane(int i, double plane[3]);
102
104
108 int AddPlane(double A, double B, double C, double D);
109 int AddPlane(double plane[3], double D);
110 void SetPlane(int i, double A, double B, double C, double D);
111 void SetPlane(int i, double plane[3], double D);
113
118 void SetPlanes(vtkPlanes* planes);
119
124
131
139
145
156
158
169 void GenerateHull(vtkPolyData* pd, double* bounds);
171 vtkPolyData* pd, double xmin, double xmax, double ymin, double ymax, double zmin, double zmax);
173
174protected:
175 vtkHull() = default;
176 ~vtkHull() override = default;
177
178 // The planes - 4 doubles per plane for A, B, C, D.
179 std::vector<double> Planes;
180
181 // Internal method used to find the position of each plane
183
184 // Internal method used to create the actual polygons from the set
185 // of planes
186 void ClipPolygonsFromPlanes(vtkPoints* points, vtkCellArray* polys, const double* bounds);
187
188 // Internal method used to create the initial "big" polygon from the
189 // plane equation. This polygon is clipped by all other planes to form
190 // the final polygon (or it may be clipped entirely)
191 void CreateInitialPolygon(double*, int, const double*);
192
193 // The method that does it all...
195
196 // Specify that the output is of type vtkPolyData
197 int FillOutputPortInformation(int port, vtkInformation* info) override;
198
199private:
200 vtkHull(const vtkHull&) = delete;
201 void operator=(const vtkHull&) = delete;
202};
203
204#endif
object to represent cell connectivity
Definition: vtkCellArray.h:187
produce an n-sided convex hull
Definition: vtkHull.h:57
void AddCubeVertexPlanes()
Add the 8 planes that represent the vertices of a cube - the combination of the three face planes con...
int GetNumberOfPlanes()
Get the number of planes in the current set of planes.
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.
int FillOutputPortInformation(int port, vtkInformation *info) override
Fill the output port information objects for this algorithm.
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.
int AddPlane(double plane[3])
Add a plane to the current set of planes.
void PrintSelf(ostream &os, vtkIndent indent) override
Standard methods to instantiate, obtain type information, and print information about the class.
~vtkHull() override=default
void AddRecursiveSpherePlanes(int level)
Add the planes that represent the normals of the vertices of a polygonal sphere formed by recursively...
void ComputePlaneDistances(vtkPointSet *input)
vtkHull()=default
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()
Standard methods to instantiate, obtain type information, and print information about the class.
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),...
void SetPlanes(vtkPlanes *planes)
Set all the planes at once using a vtkPlanes implicit function.
std::vector< double > Planes
Definition: vtkHull.h:179
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:40
Store zero or more vtkInformation instances.
Store vtkAlgorithm input/output information.
implicit function for convex set of planes
Definition: vtkPlanes.h:53
Superclass for algorithms that produce output of the same type as input.
concrete class for storing a set of points
Definition: vtkPointSet.h:70
represent and manipulate 3D points
Definition: vtkPoints.h:40
concrete dataset represents vertices, lines, polygons, and triangle strips
Definition: vtkPolyData.h:91