VTK  9.1.0
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=========================================================================*/
119#ifndef vtkAreaPicker_h
120#define vtkAreaPicker_h
121
123#include "vtkRenderingCoreModule.h" // For export macro
124
125class vtkRenderer;
126class vtkPoints;
127class vtkPlanes;
130class vtkDataSet;
132class vtkProp;
133
134class VTKRENDERINGCORE_EXPORT vtkAreaPicker : public vtkAbstractPropPicker
135{
136public:
139 void PrintSelf(ostream& os, vtkIndent indent) override;
140
144 void SetPickCoords(double x0, double y0, double x1, double y1);
145
150
154 virtual int Pick();
155
161 virtual int AreaPick(double x0, double y0, double x1, double y1, vtkRenderer* renderer = nullptr);
162
168 int Pick(double x0, double y0, double vtkNotUsed(z0), vtkRenderer* renderer = nullptr) override
169 {
170 return this->AreaPick(x0, y0, x0 + 1.0, y0 + 1.0, renderer);
171 }
172
174
177 vtkGetObjectMacro(Mapper, vtkAbstractMapper3D);
179
181
185 vtkGetObjectMacro(DataSet, vtkDataSet);
187
192 vtkProp3DCollection* GetProp3Ds() { return this->Prop3Ds; }
193
195
200 vtkGetObjectMacro(Frustum, vtkPlanes);
202
204
207 vtkGetObjectMacro(ClipPoints, vtkPoints);
209
210protected:
212 ~vtkAreaPicker() override;
213
214 void Initialize() override;
215 void DefineFrustum(double x0, double y0, double x1, double y1, vtkRenderer*);
216 virtual int PickProps(vtkRenderer* renderer);
218
219 int ABoxFrustumIsect(double bounds[], double& mindist);
220
223
224 vtkProp3DCollection* Prop3Ds; // candidate actors (based on bounding box)
225 vtkAbstractMapper3D* Mapper; // selected mapper (if the prop has a mapper)
226 vtkDataSet* DataSet; // selected dataset (if there is one)
227
228 // used internally to do prop intersection tests
230
231 double X0;
232 double Y0;
233 double X1;
234 double Y1;
235
236private:
237 vtkAreaPicker(const vtkAreaPicker&) = delete;
238 void operator=(const vtkAreaPicker&) = delete;
239};
240
241#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:166
Returns the portion of the input dataset that lies within a selection frustum.
a simple class to control print indentation
Definition: vtkIndent.h:113
implicit function for convex set of planes
Definition: vtkPlanes.h:159
represent and manipulate 3D points
Definition: vtkPoints.h:143
an ordered list of 3D props
abstract superclass for all actors, volumes and annotations
Definition: vtkProp.h:76
abstract specification for renderers
Definition: vtkRenderer.h:182