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vtkInteractorStyleTrackballActor.h
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vtkInteractorStyleTrackballActor.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkInteractorStyleTrackballActor.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 vtkInteractorStyleTrackballActor - manipulate objects in the scene independent of each other
// .SECTION Description
// vtkInteractorStyleTrackballActor allows the user to interact with (rotate,
// pan, etc.) objects in the scene indendent of each other. In trackball
// interaction, the magnitude of the mouse motion is proportional to the
// actor motion associated with a particular mouse binding. For example,
// small left-button motions cause small changes in the rotation of the
// actor around its center point.
//
// The mouse bindings are as follows. For a 3-button mouse, the left button
// is for rotation, the right button for zooming, the middle button for
// panning, and ctrl + left button for spinning. (With fewer mouse buttons,
// ctrl + shift + left button is for zooming, and shift + left button is for
// panning.)
// .SECTION See Also
// vtkInteractorStyleTrackballCamera vtkInteractorStyleJoystickActor
// vtkInteractorStyleJoystickCamera
#ifndef vtkInteractorStyleTrackballActor_h
#define vtkInteractorStyleTrackballActor_h
#include "vtkInteractionStyleModule.h" // For export macro
#include "vtkInteractorStyle.h"
class vtkCellPicker;
class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleTrackballActor : public vtkInteractorStyle
{
public:
static vtkInteractorStyleTrackballActor *New();
vtkTypeMacro(vtkInteractorStyleTrackballActor,vtkInteractorStyle);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Event bindings controlling the effects of pressing mouse buttons
// or moving the mouse.
virtual void OnMouseMove();
virtual void OnLeftButtonDown();
virtual void OnLeftButtonUp();
virtual void OnMiddleButtonDown();
virtual void OnMiddleButtonUp();
virtual void OnRightButtonDown();
virtual void OnRightButtonUp();
// These methods for the different interactions in different modes
// are overridden in subclasses to perform the correct motion. Since
// they might be called from OnTimer, they do not have mouse coord parameters
// (use interactor's GetEventPosition and GetLastEventPosition)
virtual void Rotate();
virtual void Spin();
virtual void Pan();
virtual void Dolly();
virtual void UniformScale();
protected:
vtkInteractorStyleTrackballActor();
~vtkInteractorStyleTrackballActor();
void FindPickedActor(int x, int y);
void Prop3DTransform(vtkProp3D *prop3D,
double *boxCenter,
int NumRotation,
double **rotate,
double *scale);
double MotionFactor;
vtkProp3D *InteractionProp;
vtkCellPicker *InteractionPicker;
private:
vtkInteractorStyleTrackballActor(const vtkInteractorStyleTrackballActor&); // Not implemented.
void operator=(const vtkInteractorStyleTrackballActor&); // Not implemented.
};
#endif