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81 lines
2.8 KiB
81 lines
2.8 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkPropPicker.h,v $
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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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// .NAME vtkPropPicker - pick an actor/prop using graphics hardware
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// .SECTION Description
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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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// .SECTION See Also
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// vtkPicker vtkWorldPointPicker vtkCellPicker vtkPointPicker
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#ifndef __vtkPropPicker_h
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#define __vtkPropPicker_h
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#include "vtkAbstractPropPicker.h"
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class vtkProp;
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class vtkWorldPointPicker;
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class VTK_RENDERING_EXPORT vtkPropPicker : public vtkAbstractPropPicker
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{
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public:
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static vtkPropPicker *New();
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vtkTypeRevisionMacro(vtkPropPicker,vtkAbstractPropPicker);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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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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int PickProp(double selectionX, double selectionY, vtkRenderer *renderer);
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// Description:
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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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int PickProp(double selectionX, double selectionY, vtkRenderer *renderer,
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vtkPropCollection* pickfrom);
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// Description:
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// Overide superclasses' Pick() method.
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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&); // Not implemented.
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void operator=(const vtkPropPicker&); // Not implemented.
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};
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#endif
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