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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGGA_ANIMATION_PATH_MANIPULATOR
#define OSGGA_ANIMATION_PATH_MANIPULATOR 1
#include <osg/AnimationPath>
#include <osg/Notify>
#include <osgGA/MatrixManipulator>
namespace osgGA{
//
// The AnimationPathManipulator is a Matrix Manipulator that reads an
// animation path from a file and plays it back. The file is expected
// to be ascii and a succession of lines with 8 floating point values
// per line. The succession of values are:
// time px py pz ax ay az aw
// where:
// time = elapsed time in seconds from the beginning of the animation
// px py pz = World position in cartesian coordinates
// ax ay az aw = Orientation (attitude) defined as a quaternion
class OSGGA_EXPORT AnimationPathManipulator : public MatrixManipulator
{
public:
AnimationPathManipulator( osg::AnimationPath* animationPath=0 );
AnimationPathManipulator( const std::string& filename );
virtual const char* className() const { return "AnimationPath"; }
void setPrintOutTimingInfo(bool printOutTimingInfo) { _printOutTimingInfo=printOutTimingInfo; }
bool getPrintOutTimingInfo() const { return _printOutTimingInfo; }
/** set the position of the matrix manipulator using a 4x4 Matrix.*/
virtual void setByMatrix(const osg::Matrixd& matrix) { _matrix = matrix; }
/** set the position of the matrix manipulator using a 4x4 Matrix.*/
virtual void setByInverseMatrix(const osg::Matrixd& matrix) { _matrix.invert(matrix); }
/** get the position of the manipulator as 4x4 Matrix.*/
virtual osg::Matrixd getMatrix() const { return _matrix; }
/** get the position of the manipulator as a inverse matrix of the manipulator, typically used as a model view matrix.*/
virtual osg::Matrixd getInverseMatrix() const { return osg::Matrixd::inverse(_matrix); }
void setAnimationPath( osg::AnimationPath* animationPath ) { _animationPath=animationPath; }
osg::AnimationPath* getAnimationPath() { return _animationPath.get(); }
const osg::AnimationPath* getAnimationPath() const { return _animationPath.get(); }
bool valid() const { return _animationPath.valid(); }
void init(const GUIEventAdapter& ea,GUIActionAdapter& us);
void home(const GUIEventAdapter& ea,GUIActionAdapter& us);
void home(double currentTime);
virtual bool handle(const GUIEventAdapter& ea,GUIActionAdapter& us);
/** Get the keyboard and mouse usage of this manipulator.*/
virtual void getUsage(osg::ApplicationUsage& usage) const;
protected:
bool _valid;
bool _printOutTimingInfo;
void handleFrame( double time );
osg::ref_ptr<osg::AnimationPath> _animationPath;
double _timeOffset;
double _timeScale;
double _pauseTime;
bool _isPaused;
double _realStartOfTimedPeriod;
double _animStartOfTimedPeriod;
int _numOfFramesSinceStartOfTimedPeriod;
osg::Matrixd _matrix;
};
}
#endif
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