[osg-users] StandardManipulator

[Vinoth Rajendran]

Hi,

in standard Manipulator class has some functions as following

  virtual  performMovementLeftMouseButton( const double eventTimeDelta, const double dx, const double dy );
        virtual bool performMovementMiddleMouseButton( const double eventTimeDelta, const double dx, const double dy );
        virtual bool performMovementRightMouseButton( const double eventTimeDelta, const double dx, const double dy );
        virtual bool performMouseDeltaMovement( const float dx, const float dy );

what is eventTimeDelta,dx and dy ? 

and How i can get current mouse position in world position ? is there any predefined function or we have to write our own ?

Thank you!

Cheers,
Vinoth

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http://forum.openscenegraph.org/viewtopic.php?p=71004#71004