VTK  9.1.0
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
51#ifndef vtkPointsProjectedHull_h
52#define vtkPointsProjectedHull_h
53
54#include "vtkCommonDataModelModule.h" // For export macro
55#include "vtkPoints.h"
56
57class VTKCOMMONDATAMODEL_EXPORT vtkPointsProjectedHull : public vtkPoints
58{
60
61public:
62 void PrintSelf(ostream& os, vtkIndent indent) override;
63
65
72
78 int RectangleIntersectionX(float ymin, float ymax, float zmin, float zmax);
79 int RectangleIntersectionX(double ymin, double ymax, double zmin, double zmax);
80
86
92 int RectangleIntersectionY(float zmin, float zmax, float xmin, float xmax);
93 int RectangleIntersectionY(double zmin, double zmax, double xmin, double xmax);
94
100
106 int RectangleIntersectionZ(float xmin, float xmax, float ymin, float ymax);
107 int RectangleIntersectionZ(double xmin, double xmax, double ymin, double ymax);
108
115 int GetCCWHullX(float* pts, int len);
116 int GetCCWHullX(double* pts, int len);
117
124 int GetCCWHullY(float* pts, int len);
125 int GetCCWHullY(double* pts, int len);
126
133 int GetCCWHullZ(float* pts, int len);
134 int GetCCWHullZ(double* pts, int len);
135
142
149
156
157 void Initialize() override;
158 void Reset() override { this->Initialize(); }
159
165 void Update();
166
167protected:
170
171private:
172 int RectangleIntersection(double hmin, double hmax, double vmin, double vmax, int direction);
173 int GrahamScanAlgorithm(int direction);
174 void GetPoints();
175 int RectangleBoundingBoxIntersection(
176 double hmin, double hmax, double vmin, double vmax, int direction);
177 int RectangleOutside(double hmin, double hmax, double vmin, double vmax, int direction);
178
179 int RectangleOutside1DPolygon(double hmin, double hmax, double vmin, double vmax, int dir);
180
181 void InitFlags();
182 void ClearAllocations();
183
184 static int RemoveExtras(double* pts, int n);
185 static double Distance(double* p1, double* p2);
186 static vtkIdType PositionInHull(double* base, double* top, double* pt);
187 static int OutsideLine(
188 double hmin, double hmax, double vmin, double vmax, double* p0, double* p1, double* insidePt);
189 static int OutsideHorizontalLine(
190 double vmin, double vmax, double* p0, double* p1, double* insidePt);
191 static int OutsideVerticalLine(
192 double hmin, double hmax, double* p0, double* p1, double* insidePt);
193
194 double* Pts;
195 vtkIdType Npts;
196 vtkTimeStamp PtsTime;
197
198 double* CCWHull[3];
199 float HullBBox[3][4];
200 int HullSize[3];
201 vtkTimeStamp HullTime[3];
202
204 void operator=(const vtkPointsProjectedHull&) = delete;
205};
206#endif
a simple class to control print indentation
Definition: vtkIndent.h:113
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:143
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
Definition: vtkTimeStamp.h:52
int vtkIdType
Definition: vtkType.h:332