VTK
vtkPlanesIntersection.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkPlanesIntersection.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=========================================================================*/
15/*----------------------------------------------------------------------------
16 Copyright (c) Sandia Corporation
17 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
18----------------------------------------------------------------------------*/
19
45#ifndef vtkPlanesIntersection_h
46#define vtkPlanesIntersection_h
47
48#include "vtkCommonDataModelModule.h" // For export macro
49#include "vtkPlanes.h"
50
51class vtkPoints;
53class vtkCell;
54
55class VTKCOMMONDATAMODEL_EXPORT vtkPlanesIntersection : public vtkPlanes
56{
58
59public:
60 void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
61
63
71 void SetRegionVertices(double *v, int nvertices);
73 // Retained for backward compatibility
75 {
76 return this->GetNumberOfRegionVertices();
77 }
78 int GetRegionVertices(double *v, int nvertices);
79
86
95 static int PolygonIntersectsBBox(double bounds[6], vtkPoints *pts);
96
105
106protected:
107
108 static void ComputeNormal(double *p1, double *p2, double *p3, double normal[3]);
109 static double EvaluatePlaneEquation(double *x, double *p);
110 static void PlaneEquation(double *n, double *x, double *p);
111 static int GoodNormal(double *n);
112 static int Invert3x3(double M[3][3]);
113
116
117private:
118
119 int IntersectsBoundingBox(vtkPoints *R);
120 int EnclosesBoundingBox(vtkPoints *R);
121 int EvaluateFacePlane(int plane, vtkPoints *R);
122 int IntersectsProjection(vtkPoints *R, int direction);
123
124 void SetPlaneEquations();
125 void ComputeRegionVertices();
126
127 void planesMatrix(int p1, int p2, int p3, double M[3][3]) const;
128 int duplicate(double testv[3]) const;
129 void planesRHS(int p1, int p2, int p3, double r[3]) const;
130 int outsideRegion(double v[3]) ;
131
132 // plane equations
133 double *Plane;
134
135 // vertices of convex regions enclosed by the planes, also
136 // the ccw hull of that region projected in 3 orthog. directions
137 vtkPointsProjectedHull *RegionPts;
138
139 vtkPlanesIntersection(const vtkPlanesIntersection&) VTK_DELETE_FUNCTION;
140 void operator=(const vtkPlanesIntersection&) VTK_DELETE_FUNCTION;
141};
142#endif
143
144
abstract class to specify cell behavior
Definition: vtkCell.h:60
a simple class to control print indentation
Definition: vtkIndent.h:40
A vtkPlanesIntersection object is a vtkPlanes object that can compute whether the arbitrary convex re...
static int PolygonIntersectsBBox(double bounds[6], vtkPoints *pts)
A convenience function provided by this class, returns 1 if the polygon defined in pts intersects the...
int GetRegionVertices(double *v, int nvertices)
void SetRegionVertices(double *v, int nvertices)
static void ComputeNormal(double *p1, double *p2, double *p3, double normal[3])
static int GoodNormal(double *n)
static int Invert3x3(double M[3][3])
static double EvaluatePlaneEquation(double *x, double *p)
~vtkPlanesIntersection() override
static vtkPlanesIntersection * Convert3DCell(vtkCell *cell)
Another convenience function provided by this class, returns the vtkPlanesIntersection object represe...
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void SetRegionVertices(vtkPoints *pts)
It helps if you know the vertices of the convex region.
static vtkPlanesIntersection * New()
static void PlaneEquation(double *n, double *x, double *p)
int IntersectsRegion(vtkPoints *R)
Return 1 if the axis aligned box defined by R intersects the region defined by the planes,...
implicit function for convex set of planes
Definition: vtkPlanes.h:55
the convex hull of the orthogonal projection of the vtkPoints in the 3 coordinate directions
represent and manipulate 3D points
Definition: vtkPoints.h:40
@ direction
Definition: vtkX3D.h:260
#define M(row, col)