VTK  9.2.6
vtkPointsProjectedHull.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkPointsProjectedHull.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
32#ifndef vtkPointsProjectedHull_h
33#define vtkPointsProjectedHull_h
34
35#include "vtkCommonDataModelModule.h" // For export macro
36#include "vtkPoints.h"
37
38class VTKCOMMONDATAMODEL_EXPORT vtkPointsProjectedHull : public vtkPoints
39{
41
42public:
43 void PrintSelf(ostream& os, vtkIndent indent) override;
44
46
53
59 int RectangleIntersectionX(float ymin, float ymax, float zmin, float zmax);
60 int RectangleIntersectionX(double ymin, double ymax, double zmin, double zmax);
61
67
73 int RectangleIntersectionY(float zmin, float zmax, float xmin, float xmax);
74 int RectangleIntersectionY(double zmin, double zmax, double xmin, double xmax);
75
81
87 int RectangleIntersectionZ(float xmin, float xmax, float ymin, float ymax);
88 int RectangleIntersectionZ(double xmin, double xmax, double ymin, double ymax);
89
96 int GetCCWHullX(float* pts, int len);
97 int GetCCWHullX(double* pts, int len);
98
105 int GetCCWHullY(float* pts, int len);
106 int GetCCWHullY(double* pts, int len);
107
114 int GetCCWHullZ(float* pts, int len);
115 int GetCCWHullZ(double* pts, int len);
116
123
130
137
138 void Initialize() override;
139 void Reset() override { this->Initialize(); }
140
146 void Update();
147
148protected:
151
152private:
153 int RectangleIntersection(double hmin, double hmax, double vmin, double vmax, int direction);
154 int GrahamScanAlgorithm(int direction);
155 void GetPoints();
156 int RectangleBoundingBoxIntersection(
157 double hmin, double hmax, double vmin, double vmax, int direction);
158 int RectangleOutside(double hmin, double hmax, double vmin, double vmax, int direction);
159
160 int RectangleOutside1DPolygon(double hmin, double hmax, double vmin, double vmax, int dir);
161
162 void InitFlags();
163 void ClearAllocations();
164
165 static int RemoveExtras(double* pts, int n);
166 static double Distance(double* p1, double* p2);
167 static vtkIdType PositionInHull(double* base, double* top, double* pt);
168 static int OutsideLine(
169 double hmin, double hmax, double vmin, double vmax, double* p0, double* p1, double* insidePt);
170 static int OutsideHorizontalLine(
171 double vmin, double vmax, double* p0, double* p1, double* insidePt);
172 static int OutsideVerticalLine(
173 double hmin, double hmax, double* p0, double* p1, double* insidePt);
174
175 double* Pts;
176 vtkIdType Npts;
177 vtkTimeStamp PtsTime;
178
179 double* CCWHull[3];
180 float HullBBox[3][4];
181 int HullSize[3];
182 vtkTimeStamp HullTime[3];
183
185 void operator=(const vtkPointsProjectedHull&) = delete;
186};
187#endif
a simple class to control print indentation
Definition vtkIndent.h:40
the convex hull of the orthogonal projection of the vtkPoints in the 3 coordinate directions
int GetSizeCCWHullY()
Returns the number of points in the convex hull of the projection of the points down the positive y-a...
int GetCCWHullY(double *pts, int len)
int GetCCWHullZ(double *pts, int len)
int RectangleIntersectionY(vtkPoints *R)
of the parallel projection along the Y axis of the points
int GetSizeCCWHullX()
Returns the number of points in the convex hull of the projection of the points down the positive x-a...
int RectangleIntersectionX(vtkPoints *R)
determine whether the resulting rectangle intersects the convex hull of the projection of the points ...
~vtkPointsProjectedHull() override
int RectangleIntersectionX(float ymin, float ymax, float zmin, float zmax)
the convex hull of the projection of the points along the positive X-axis.
int GetCCWHullZ(float *pts, int len)
Returns the coordinates (x, y) of the points in the convex hull of the projection of the points down ...
int GetCCWHullX(float *pts, int len)
Returns the coordinates (y,z) of the points in the convex hull of the projection of the points down t...
int RectangleIntersectionZ(double xmin, double xmax, double ymin, double ymax)
int RectangleIntersectionX(double ymin, double ymax, double zmin, double zmax)
void Update()
Forces recalculation of convex hulls, use this if you delete/add points.
int GetCCWHullY(float *pts, int len)
Returns the coordinates (z, x) of the points in the convex hull of the projection of the points down ...
int RectangleIntersectionY(float zmin, float zmax, float xmin, float xmax)
the convex hull of the projection of the points along the positive Y-axis.
int GetSizeCCWHullZ()
Returns the number of points in the convex hull of the projection of the points down the positive z-a...
int RectangleIntersectionZ(float xmin, float xmax, float ymin, float ymax)
the convex hull of the projection of the points along the positive Z-axis.
void Reset() override
Make object look empty but do not delete memory.
static vtkPointsProjectedHull * New()
int GetCCWHullX(double *pts, int len)
int RectangleIntersectionZ(vtkPoints *R)
of the parallel projection along the Z axis of the points
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void Initialize() override
Return object to instantiated state.
int RectangleIntersectionY(double zmin, double zmax, double xmin, double xmax)
represent and manipulate 3D points
Definition vtkPoints.h:40
void GetPoints(vtkIdList *ptId, vtkPoints *outPoints)
Given a list of pt ids, return an array of points.
virtual void Initialize()
Return object to instantiated state.
record modification and/or execution time
int vtkIdType
Definition vtkType.h:332