VTK  9.2.6
vtkAreaPicker.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkAreaPicker.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=========================================================================*/
50#ifndef vtkAreaPicker_h
51#define vtkAreaPicker_h
52
54#include "vtkRenderingCoreModule.h" // For export macro
55
56class vtkRenderer;
57class vtkPoints;
58class vtkPlanes;
61class vtkDataSet;
63class vtkProp;
64
65class VTKRENDERINGCORE_EXPORT vtkAreaPicker : public vtkAbstractPropPicker
66{
67public:
68 static vtkAreaPicker* New();
70 void PrintSelf(ostream& os, vtkIndent indent) override;
71
75 void SetPickCoords(double x0, double y0, double x1, double y1);
76
81
85 virtual int Pick();
86
92 virtual int AreaPick(double x0, double y0, double x1, double y1, vtkRenderer* renderer = nullptr);
93
99 int Pick(double x0, double y0, double vtkNotUsed(z0), vtkRenderer* renderer = nullptr) override
100 {
101 return this->AreaPick(x0, y0, x0 + 1.0, y0 + 1.0, renderer);
102 }
103
105
108 vtkGetObjectMacro(Mapper, vtkAbstractMapper3D);
110
112
116 vtkGetObjectMacro(DataSet, vtkDataSet);
118
123 vtkProp3DCollection* GetProp3Ds() { return this->Prop3Ds; }
124
126
131 vtkGetObjectMacro(Frustum, vtkPlanes);
133
135
138 vtkGetObjectMacro(ClipPoints, vtkPoints);
140
141protected:
143 ~vtkAreaPicker() override;
144
145 void Initialize() override;
146 void DefineFrustum(double x0, double y0, double x1, double y1, vtkRenderer*);
147 virtual int PickProps(vtkRenderer* renderer);
149
150 int ABoxFrustumIsect(double bounds[], double& mindist);
151
154
155 vtkProp3DCollection* Prop3Ds; // candidate actors (based on bounding box)
156 vtkAbstractMapper3D* Mapper; // selected mapper (if the prop has a mapper)
157 vtkDataSet* DataSet; // selected dataset (if there is one)
158
159 // used internally to do prop intersection tests
161
162 double X0;
163 double Y0;
164 double X1;
165 double Y1;
166
167private:
168 vtkAreaPicker(const vtkAreaPicker&) = delete;
169 void operator=(const vtkAreaPicker&) = delete;
170};
171
172#endif
abstract class specifies interface to map 3D data
abstract API for pickers that can pick an instance of vtkProp
Picks props behind a selection rectangle on a viewport.
static vtkAreaPicker * New()
int ABoxFrustumIsect(double bounds[], double &mindist)
void SetRenderer(vtkRenderer *)
Set the default renderer to pick on.
vtkProp3DCollection * GetProp3Ds()
Return a collection of all the prop 3D's that were intersected by the pick ray.
vtkAbstractMapper3D * Mapper
vtkPlanes * Frustum
virtual int Pick()
Perform an AreaPick within the default screen rectangle and renderer.
vtkDataSet * DataSet
void Initialize() override
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
virtual int PickProps(vtkRenderer *renderer)
void DefineFrustum(double x0, double y0, double x1, double y1, vtkRenderer *)
int Pick(double x0, double y0, double vtkNotUsed(z0), vtkRenderer *renderer=nullptr) override
Perform pick operation in volume behind the given screen coordinate.
int TypeDecipher(vtkProp *, vtkAbstractMapper3D **)
virtual int AreaPick(double x0, double y0, double x1, double y1, vtkRenderer *renderer=nullptr)
Perform pick operation in volume behind the given screen coordinates.
void SetPickCoords(double x0, double y0, double x1, double y1)
Set the default screen rectangle to pick in.
vtkExtractSelectedFrustum * FrustumExtractor
vtkPoints * ClipPoints
~vtkAreaPicker() override
vtkProp3DCollection * Prop3Ds
abstract class to specify dataset behavior
Definition vtkDataSet.h:63
Returns the portion of the input dataset that lies within a selection frustum.
a simple class to control print indentation
Definition vtkIndent.h:40
implicit function for convex set of planes
Definition vtkPlanes.h:53
represent and manipulate 3D points
Definition vtkPoints.h:40
an ordered list of 3D props
abstract superclass for all actors, volumes and annotations
Definition vtkProp.h:57
abstract specification for renderers
Definition vtkRenderer.h:73