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87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkPropPicker.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkPropPicker
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* @brief pick an actor/prop using graphics hardware
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*
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* vtkPropPicker is used to pick an actor/prop given a selection
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* point (in display coordinates) and a renderer. This class uses
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* graphics hardware/rendering system to pick rapidly (as compared
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* to using ray casting as does vtkCellPicker and vtkPointPicker).
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* This class determines the actor/prop and pick position in world
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* coordinates; point and cell ids are not determined.
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*
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* @sa
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* vtkPicker vtkWorldPointPicker vtkCellPicker vtkPointPicker
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*/
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#ifndef vtkPropPicker_h
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#define vtkPropPicker_h
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#include "vtkRenderingCoreModule.h" // For export macro
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#include "vtkAbstractPropPicker.h"
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class vtkProp;
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class vtkWorldPointPicker;
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class VTKRENDERINGCORE_EXPORT vtkPropPicker : public vtkAbstractPropPicker
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{
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public:
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static vtkPropPicker *New();
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vtkTypeMacro(vtkPropPicker, vtkAbstractPropPicker);
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void PrintSelf(ostream& os, vtkIndent indent);
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/**
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* Perform the pick and set the PickedProp ivar. If something is picked, a
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* 1 is returned, otherwise 0 is returned. Use the GetViewProp() method
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* to get the instance of vtkProp that was picked. Props are picked from
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* the renderers list of pickable Props.
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*/
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int PickProp(double selectionX, double selectionY, vtkRenderer *renderer);
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/**
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* Perform a pick from the user-provided list of vtkProps and not from the
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* list of vtkProps that the render maintains.
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*/
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int PickProp(double selectionX, double selectionY, vtkRenderer *renderer,
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vtkPropCollection* pickfrom);
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/**
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* Overide superclasses' Pick() method.
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*/
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int Pick(double selectionX, double selectionY, double selectionZ,
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vtkRenderer *renderer);
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int Pick(double selectionPt[3], vtkRenderer *renderer)
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{ return this->Pick( selectionPt[0],
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selectionPt[1], selectionPt[2], renderer); }
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protected:
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vtkPropPicker();
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~vtkPropPicker();
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void Initialize();
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vtkPropCollection* PickFromProps;
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// Used to get x-y-z pick position
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vtkWorldPointPicker *WorldPointPicker;
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private:
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vtkPropPicker(const vtkPropPicker&) VTK_DELETE_FUNCTION;
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void operator=(const vtkPropPicker&) VTK_DELETE_FUNCTION;
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};
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#endif
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