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127 lines
5.5 KiB
127 lines
5.5 KiB
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2010 Robert Osfield |
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* |
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* This library is open source and may be redistributed and/or modified under |
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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* (at your option) any later version. The full license is in LICENSE file |
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* included with this distribution, and on the openscenegraph.org website. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* OpenSceneGraph Public License for more details. |
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* |
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* OrbitManipulator code Copyright (C) 2010 PCJohn (Jan Peciva) |
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* while some pieces of code were taken from OSG. |
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* Thanks to company Cadwork (www.cadwork.ch) and |
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* Brno University of Technology (www.fit.vutbr.cz) for open-sourcing this work. |
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*/ |
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#ifndef OSGGA_ORBIT_MANIPULATOR |
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#define OSGGA_ORBIT_MANIPULATOR 1 |
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#include <osgGA/StandardManipulator> |
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namespace osgGA { |
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/** OrbitManipulator is base class for camera control based on focal center, |
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distance from the center, and orientation of distance vector to the eye. |
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This is the base class for trackball style manipulators.*/ |
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class OSGGA_EXPORT OrbitManipulator : public StandardManipulator |
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{ |
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typedef StandardManipulator inherited; |
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public: |
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OrbitManipulator( int flags = DEFAULT_SETTINGS ); |
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OrbitManipulator( const OrbitManipulator& om, |
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const osg::CopyOp& copyOp = osg::CopyOp::SHALLOW_COPY ); |
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META_Object( osgGA, OrbitManipulator ); |
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virtual void setByMatrix( const osg::Matrixd& matrix ); |
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virtual void setByInverseMatrix( const osg::Matrixd& matrix ); |
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virtual osg::Matrixd getMatrix() const; |
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virtual osg::Matrixd getInverseMatrix() const; |
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virtual void setTransformation( const osg::Vec3d& eye, const osg::Quat& rotation ); |
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virtual void setTransformation( const osg::Vec3d& eye, const osg::Vec3d& center, const osg::Vec3d& up ); |
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virtual void getTransformation( osg::Vec3d& eye, osg::Quat& rotation ) const; |
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virtual void getTransformation( osg::Vec3d& eye, osg::Vec3d& center, osg::Vec3d& up ) const; |
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void setHeading( double azimuth ); |
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double getHeading() const; |
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void setElevation( double elevation ); |
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double getElevation() const; |
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virtual void setCenter( const osg::Vec3d& center ); |
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const osg::Vec3d& getCenter() const; |
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virtual void setRotation( const osg::Quat& rotation ); |
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const osg::Quat& getRotation() const; |
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virtual void setDistance( double distance ); |
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double getDistance() const; |
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virtual void setTrackballSize( const double& size ); |
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inline double getTrackballSize() const; |
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virtual void setWheelZoomFactor( double wheelZoomFactor ); |
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inline double getWheelZoomFactor() const; |
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virtual void setMinimumDistance( const double& minimumDistance, bool relativeToModelSize = NULL ); |
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double getMinimumDistance( bool *relativeToModelSize = NULL ) const; |
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virtual osgUtil::SceneView::FusionDistanceMode getFusionDistanceMode() const; |
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virtual float getFusionDistanceValue() const; |
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protected: |
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virtual bool handleMouseWheel( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us ); |
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virtual bool performMovementLeftMouseButton( const double eventTimeDelta, const double dx, const double dy ); |
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virtual bool performMovementMiddleMouseButton( const double eventTimeDelta, const double dx, const double dy ); |
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virtual bool performMovementRightMouseButton( const double eventTimeDelta, const double dx, const double dy ); |
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virtual bool performMouseDeltaMovement( const float dx, const float dy ); |
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virtual void applyAnimationStep( const double currentProgress, const double prevProgress ); |
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virtual void rotateTrackball( const float px0, const float py0, |
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const float px1, const float py1, const float scale ); |
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virtual void rotateWithFixedVertical( const float dx, const float dy ); |
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virtual void rotateWithFixedVertical( const float dx, const float dy, const osg::Vec3f& up ); |
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virtual void panModel( const float dx, const float dy, const float dz = 0.f ); |
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virtual void zoomModel( const float dy, bool pushForwardIfNeeded = true ); |
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void trackball( osg::Vec3d& axis, float& angle, float p1x, float p1y, float p2x, float p2y ); |
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float tb_project_to_sphere( float r, float x, float y ); |
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virtual bool startAnimationByMousePointerIntersection( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us ); |
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osg::Vec3d _center; |
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osg::Quat _rotation; |
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double _distance; |
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double _trackballSize; |
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double _wheelZoomFactor; |
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double _minimumDistance; |
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static int _minimumDistanceFlagIndex; |
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class OrbitAnimationData : public AnimationData { |
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public: |
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osg::Vec3d _movement; |
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void start( const osg::Vec3d& movement, const double startTime ); |
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}; |
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virtual void allocAnimationData() { _animationData = new OrbitAnimationData(); } |
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}; |
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// |
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// inline functions |
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// |
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/** Get the size of the trackball relative to the model size. */ |
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inline double OrbitManipulator::getTrackballSize() const { return _trackballSize; } |
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/** Get the mouse wheel zoom factor.*/ |
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inline double OrbitManipulator::getWheelZoomFactor() const { return _wheelZoomFactor; } |
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} |
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#endif /* OSGGA_ORBIT_MANIPULATOR */
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