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96 lines
3.3 KiB
C
96 lines
3.3 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkInteractorStyleTrackballCamera.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 vtkInteractorStyleTrackballCamera
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* @brief interactive manipulation of the camera
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*
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* vtkInteractorStyleTrackballCamera allows the user to interactively
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* manipulate (rotate, pan, etc.) the camera, the viewpoint of the scene. In
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* trackball interaction, the magnitude of the mouse motion is proportional
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* to the camera motion associated with a particular mouse binding. For
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* example, small left-button motions cause small changes in the rotation of
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* the camera around its focal point. For a 3-button mouse, the left button
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* is for rotation, the right button for zooming, the middle button for
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* panning, ctrl + left button for spinning, and shift + right button for
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* environment rotation. (With fewer mouse buttons, ctrl + shift + left button
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* is for zooming, and shift + left button is for panning.)
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*
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* @sa
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* vtkInteractorStyleTrackballActor vtkInteractorStyleJoystickCamera
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* vtkInteractorStyleJoystickActor
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*/
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#ifndef vtkInteractorStyleTrackballCamera_h
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#define vtkInteractorStyleTrackballCamera_h
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#include "vtkInteractionStyleModule.h" // For export macro
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#include "vtkInteractorStyle.h"
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class VTKINTERACTIONSTYLE_EXPORT vtkInteractorStyleTrackballCamera : public vtkInteractorStyle
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{
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public:
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static vtkInteractorStyleTrackballCamera* New();
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vtkTypeMacro(vtkInteractorStyleTrackballCamera, vtkInteractorStyle);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Event bindings controlling the effects of pressing mouse buttons
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* or moving the mouse.
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*/
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void OnMouseMove() override;
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void OnLeftButtonDown() override;
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void OnLeftButtonUp() override;
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void OnMiddleButtonDown() override;
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void OnMiddleButtonUp() override;
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void OnRightButtonDown() override;
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void OnRightButtonUp() override;
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void OnMouseWheelForward() override;
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void OnMouseWheelBackward() override;
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//@}
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// These methods for the different interactions in different modes
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// are overridden in subclasses to perform the correct motion. Since
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// they are called by OnTimer, they do not have mouse coord parameters
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// (use interactor's GetEventPosition and GetLastEventPosition)
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void Rotate() override;
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void Spin() override;
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void Pan() override;
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void Dolly() override;
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void EnvironmentRotate() override;
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//@{
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/**
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* Set the apparent sensitivity of the interactor style to mouse motion.
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*/
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vtkSetMacro(MotionFactor, double);
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vtkGetMacro(MotionFactor, double);
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//@}
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protected:
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vtkInteractorStyleTrackballCamera();
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~vtkInteractorStyleTrackballCamera() override;
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double MotionFactor;
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virtual void Dolly(double factor);
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private:
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vtkInteractorStyleTrackballCamera(const vtkInteractorStyleTrackballCamera&) = delete;
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void operator=(const vtkInteractorStyleTrackballCamera&) = delete;
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};
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#endif
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