VTK  9.3.0
vtkHull.h
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1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-License-Identifier: BSD-3-Clause
32#ifndef vtkHull_h
33#define vtkHull_h
34
35#include "vtkFiltersCoreModule.h" // For export macro
37#include <vector> //for storing planes
38
39VTK_ABI_NAMESPACE_BEGIN
40class vtkCellArray;
41class vtkPlanes;
42class vtkPoints;
43class vtkPolyData;
44
45class VTKFILTERSCORE_EXPORT vtkHull : public vtkPointSetAlgorithm
46{
47public:
49
53 static vtkHull* New();
55 void PrintSelf(ostream& os, vtkIndent indent) override;
57
62
64
75 int AddPlane(double A, double B, double C);
76 int AddPlane(double plane[3]);
78
80
88 void SetPlane(int i, double A, double B, double C);
89 void SetPlane(int i, double plane[3]);
91
93
97 int AddPlane(double A, double B, double C, double D);
98 int AddPlane(double plane[3], double D);
99 void SetPlane(int i, double A, double B, double C, double D);
100 void SetPlane(int i, double plane[3], double D);
102
107 void SetPlanes(vtkPlanes* planes);
108
113
120
128
134
145
147
158 void GenerateHull(vtkPolyData* pd, double* bounds);
160 vtkPolyData* pd, double xmin, double xmax, double ymin, double ymax, double zmin, double zmax);
162
163protected:
164 vtkHull() = default;
165 ~vtkHull() override = default;
166
167 // The planes - 4 doubles per plane for A, B, C, D.
168 std::vector<double> Planes;
169
170 // Internal method used to find the position of each plane
172
173 // Internal method used to create the actual polygons from the set
174 // of planes
175 void ClipPolygonsFromPlanes(vtkPoints* points, vtkCellArray* polys, const double* bounds);
176
177 // Internal method used to create the initial "big" polygon from the
178 // plane equation. This polygon is clipped by all other planes to form
179 // the final polygon (or it may be clipped entirely)
180 void CreateInitialPolygon(double*, int, const double*);
181
182 // The method that does it all...
184
185 // Specify that the output is of type vtkPolyData
186 int FillOutputPortInformation(int port, vtkInformation* info) override;
187
188private:
189 vtkHull(const vtkHull&) = delete;
190 void operator=(const vtkHull&) = delete;
191};
192
193VTK_ABI_NAMESPACE_END
194#endif
object to represent cell connectivity
produce an n-sided convex hull
Definition vtkHull.h:46
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 RemoveAllPlanes()
Remove all planes from the current set of 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.
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:168
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:29
Store zero or more vtkInformation instances.
Store vtkAlgorithm input/output information.
implicit function for convex set of planes
Definition vtkPlanes.h:42
Superclass for algorithms that produce output of the same type as input.
concrete class for storing a set of points
Definition vtkPointSet.h:59
represent and manipulate 3D points
Definition vtkPoints.h:29
concrete dataset represents vertices, lines, polygons, and triangle strips
Definition vtkPolyData.h:80