/usr/include/vtk-6.3/vtkConvexHull2D.h is in libvtk6-dev 6.3.0+dfsg1-5.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkConvexHull2D.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkConvexHull2D - Produce filled convex hulls around a set of points.
//
// .SECTION Description
// Produces a vtkPolyData comprised of a filled polygon of the convex hull
// of the input points. You may alternatively choose to output a bounding
// rectangle. Static methods are provided that calculate a (counter-clockwise)
// hull based on a set of input points.
//
// To help maintain the property of <i>guaranteed visibility</i> hulls may be
// artificially scaled by setting MinHullSizeInWorld. This is particularly
// helpful in the case that there are only one or two points as it avoids
// producing a degenerate polygon. This setting is also available as an
// argument to the static methods.
//
// Setting a vtkRenderer on the filter enables the possibility to set
// MinHullSizeInDisplay to the desired number of display pixels to cover in
// each of the x- and y-dimensions.
//
// Setting OutlineOn() additionally produces an outline of the hull on output
// port 1.
//
// .SECTION Note
// This filter operates in the x,y-plane and as such works best with an
// interactor style that does not permit camera rotation such as
// vtkInteractorStyleRubberBand2D.
//
// .SECTION Thanks
// Thanks to Colin Myers, University of Leeds for providing this implementation.
#ifndef vtkConvexHull2D_h
#define vtkConvexHull2D_h
#include "vtkRenderingAnnotationModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
#include "vtkSmartPointer.h" // needed for ivars
class vtkCoordinate;
class vtkPoints;
class vtkPolygon;
class vtkPolyLine;
class vtkRenderer;
class vtkTransform;
class vtkTransformPolyDataFilter;
class VTKRENDERINGANNOTATION_EXPORT vtkConvexHull2D: public vtkPolyDataAlgorithm
{
public:
static vtkConvexHull2D *New();
vtkTypeMacro(vtkConvexHull2D, vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Scale the hull by the amount specified. Defaults to 1.0.
vtkGetMacro(ScaleFactor, double);
vtkSetMacro(ScaleFactor, double);
// Description:
// Produce an outline (polyline) of the hull on output port 1.
vtkGetMacro(Outline, bool);
vtkSetMacro(Outline, bool);
vtkBooleanMacro(Outline, bool);
enum HullShapes {
BoundingRectangle = 0,
ConvexHull
};
// Description:
// Set the shape of the hull to BoundingRectangle or ConvexHull.
vtkGetMacro(HullShape, int);
vtkSetClampMacro(HullShape, int, 0, 1);
// Description:
// Set the minimum x,y-dimensions of each hull in world coordinates. Defaults
// to 1.0. Set to 0.0 to disable.
vtkSetClampMacro(MinHullSizeInWorld, double, 0.0, VTK_DOUBLE_MAX);
vtkGetMacro(MinHullSizeInWorld, double);
// Description:
// Set the minimum x,y-dimensions of each hull in pixels. You must also set a
// vtkRenderer. Defaults to 1. Set to 0 to disable.
vtkSetClampMacro(MinHullSizeInDisplay, int, 0, VTK_INT_MAX);
vtkGetMacro(MinHullSizeInDisplay, int);
// Description:
// Renderer needed for MinHullSizeInDisplay calculation. Not reference counted.
void SetRenderer(vtkRenderer* renderer);
vtkRenderer* GetRenderer();
// Description:
// The modified time of this filter.
virtual unsigned long GetMTime();
// Description:
// Convenience methods to calculate a convex hull from a set of vtkPointS.
static void CalculateBoundingRectangle(vtkPoints* inPoints,
vtkPoints* outPoints, double minimumHullSize=1.0);
static void CalculateConvexHull(vtkPoints* inPoints, vtkPoints* outPoints,
double minimumHullSize=1.0);
protected:
vtkConvexHull2D();
~vtkConvexHull2D();
// Description:
// This is called by the superclass. This is the method you should override.
int RequestData(vtkInformation *, vtkInformationVector **,
vtkInformationVector *);
private:
vtkConvexHull2D(const vtkConvexHull2D&); // Not implemented.
void operator=(const vtkConvexHull2D&); // Not implemented.
void ResizeHullToMinimumInDisplay(vtkPolyData* hullPolyData);
double ScaleFactor;
bool Outline;
int HullShape;
int MinHullSizeInDisplay;
double MinHullSizeInWorld;
vtkRenderer* Renderer;
vtkSmartPointer<vtkCoordinate> Coordinate;
vtkSmartPointer<vtkTransform> Transform;
vtkSmartPointer<vtkTransform> OutputTransform;
vtkSmartPointer<vtkTransformPolyDataFilter> OutputTransformFilter;
vtkSmartPointer<vtkPolyLine> OutlineSource;
vtkSmartPointer<vtkPolygon> HullSource;
};
#endif // vtkConvexHull2D_h
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