98 lines
3.4 KiB
C++
98 lines
3.4 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 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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#ifndef OSGGA_ANIMATION_PATH_MANIPULATOR
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#define OSGGA_ANIMATION_PATH_MANIPULATOR 1
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#include <osg/AnimationPath>
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#include <osg/Notify>
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#include <osgGA/MatrixManipulator>
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namespace osgGA{
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//
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// The AnimationPathManipulator is a Camera Manipulator that reads an
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// animation path from a file and plays it back. The file is expected
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// to be ascii and a succession of lines with 8 floating point values
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// per line. The succession of values are:
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// time px py pz ax ay az aw
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// where:
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// time = elapsed time in seconds from the begining of the animation
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// px py pz = World position in catesian coordinates
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// ax ay az aw = Orientation (attitude) defined as a quaternion
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class OSGGA_EXPORT AnimationPathManipulator : public MatrixManipulator
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{
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public:
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AnimationPathManipulator( osg::AnimationPath* animationPath=0 );
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AnimationPathManipulator( const std::string& filename );
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virtual const char* className() const { return "AnimationPath"; }
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/** set the position of the matrix manipulator using a 4x4 Matrix.*/
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virtual void setByMatrix(const osg::Matrix& matrix) { _matrix = matrix; }
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/** set the position of the matrix manipulator using a 4x4 Matrix.*/
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virtual void setByInverseMatrix(const osg::Matrix& matrix) { _matrix.invert(matrix); }
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/** get the position of the manipulator as 4x4 Matrix.*/
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virtual osg::Matrix getMatrix() const { return _matrix; }
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/** get the position of the manipulator as a inverse matrix of the manipulator, typically used as a model view matrix.*/
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virtual osg::Matrix getInverseMatrix() const { return osg::Matrix::inverse(_matrix); }
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void setAnimationPath( osg::AnimationPath* animationPath ) { _animationPath=animationPath; }
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osg::AnimationPath* getAnimationPath() { return _animationPath.get(); }
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const osg::AnimationPath* getAnimationPath() const { return _animationPath.get(); }
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bool valid() const { return _animationPath.valid(); }
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void init(const GUIEventAdapter& ea,GUIActionAdapter& us);
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void home(const GUIEventAdapter& ea,GUIActionAdapter& us);
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virtual bool handle(const GUIEventAdapter& ea,GUIActionAdapter& us);
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/** Get the keyboard and mouse usage of this manipulator.*/
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virtual void getUsage(osg::ApplicationUsage& usage) const;
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protected:
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bool _valid;
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void handleFrame( double time );
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osg::ref_ptr<osg::AnimationPath> _animationPath;
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double _timeOffset;
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double _timeScale;
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double _pauseTime;
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bool _isPaused;
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double _realStartOfTimedPeriod;
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double _animStartOfTimedPeriod;
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int _numOfFramesSinceStartOfTimedPeriod;
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osg::Matrix _matrix;
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};
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}
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#endif
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