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OpenSceneGraph/include/osgGA/StandardManipulator

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From Jan Pecvia, improvements to manipulators and added new manipulator to osgviewer
2010-05-27 21:59:34 +08:00
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2010 Robert Osfield
From Jan Perciva with changes from Robert Osfield, "I am submitting improved osgGA camera manipulators. Changes: - new mouse wheel zoom/movement/center functionality - ability to fix vertical axis (important for CAD) - possibility to specify values as absolute values or relative to model size - kind of backward compatibility by flags passed to constructor - and much more - restructuring classes to use kind of hierarchy and standard way of event processing (handle methods). This way, there is much more code reusability and it is more easy to develop new kinds of manipulators. Briefly, the new architecture keeps MatrixManipulator as base abstract class. StandardManipulator is the feature-rich standard manipulator with two main descendant classes: OrbitManipulator and FirstPersonManipulator. OrbitManipulator is base class for all trackball style manipulators, based on center, rotation and distance from center. FirstPersonManipulator is base for walk or fly style manipulators, using position and rotation for camera manipulation. " Changes by Robert: Replaced osg::Vec3 by osg::Vec3d, introduced DEFAULT_SETTINGS enum and usage. Added frame time member variables in prep for improving throw animation when vysync is off.
2010-05-25 20:05:13 +08:00
*
* 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.
*
* StandardManipulator code Copyright (C) 2010 PCJohn (Jan Peciva)
From Jan Pecvia, improvements to manipulators and added new manipulator to osgviewer
2010-05-27 21:59:34 +08:00
* while some pieces of code were taken from OSG.
From Jan Perciva with changes from Robert Osfield, "I am submitting improved osgGA camera manipulators. Changes: - new mouse wheel zoom/movement/center functionality - ability to fix vertical axis (important for CAD) - possibility to specify values as absolute values or relative to model size - kind of backward compatibility by flags passed to constructor - and much more - restructuring classes to use kind of hierarchy and standard way of event processing (handle methods). This way, there is much more code reusability and it is more easy to develop new kinds of manipulators. Briefly, the new architecture keeps MatrixManipulator as base abstract class. StandardManipulator is the feature-rich standard manipulator with two main descendant classes: OrbitManipulator and FirstPersonManipulator. OrbitManipulator is base class for all trackball style manipulators, based on center, rotation and distance from center. FirstPersonManipulator is base for walk or fly style manipulators, using position and rotation for camera manipulation. " Changes by Robert: Replaced osg::Vec3 by osg::Vec3d, introduced DEFAULT_SETTINGS enum and usage. Added frame time member variables in prep for improving throw animation when vysync is off.
2010-05-25 20:05:13 +08:00
* Thanks to company Cadwork (www.cadwork.ch) and
* Brno University of Technology (www.fit.vutbr.cz) for open-sourcing this work.
*/
#ifndef OSGGA_CAMERA_MANIPULATOR
#define OSGGA_CAMERA_MANIPULATOR 1
Renamed osgGA::MatrixManipualtor to osgGA::CameraManipulator so its name better reflects it's function
2010-05-27 23:54:37 +08:00
#include <osgGA/CameraManipulator>
From Jan Perciva with changes from Robert Osfield, "I am submitting improved osgGA camera manipulators. Changes: - new mouse wheel zoom/movement/center functionality - ability to fix vertical axis (important for CAD) - possibility to specify values as absolute values or relative to model size - kind of backward compatibility by flags passed to constructor - and much more - restructuring classes to use kind of hierarchy and standard way of event processing (handle methods). This way, there is much more code reusability and it is more easy to develop new kinds of manipulators. Briefly, the new architecture keeps MatrixManipulator as base abstract class. StandardManipulator is the feature-rich standard manipulator with two main descendant classes: OrbitManipulator and FirstPersonManipulator. OrbitManipulator is base class for all trackball style manipulators, based on center, rotation and distance from center. FirstPersonManipulator is base for walk or fly style manipulators, using position and rotation for camera manipulation. " Changes by Robert: Replaced osg::Vec3 by osg::Vec3d, introduced DEFAULT_SETTINGS enum and usage. Added frame time member variables in prep for improving throw animation when vysync is off.
2010-05-25 20:05:13 +08:00
namespace osgGA {
/** StandardManipulator class provides basic functionality
for user controlled manipulation.*/
Renamed osgGA::MatrixManipualtor to osgGA::CameraManipulator so its name better reflects it's function
2010-05-27 23:54:37 +08:00
class OSGGA_EXPORT StandardManipulator : public CameraManipulator
From Jan Perciva with changes from Robert Osfield, "I am submitting improved osgGA camera manipulators. Changes: - new mouse wheel zoom/movement/center functionality - ability to fix vertical axis (important for CAD) - possibility to specify values as absolute values or relative to model size - kind of backward compatibility by flags passed to constructor - and much more - restructuring classes to use kind of hierarchy and standard way of event processing (handle methods). This way, there is much more code reusability and it is more easy to develop new kinds of manipulators. Briefly, the new architecture keeps MatrixManipulator as base abstract class. StandardManipulator is the feature-rich standard manipulator with two main descendant classes: OrbitManipulator and FirstPersonManipulator. OrbitManipulator is base class for all trackball style manipulators, based on center, rotation and distance from center. FirstPersonManipulator is base for walk or fly style manipulators, using position and rotation for camera manipulation. " Changes by Robert: Replaced osg::Vec3 by osg::Vec3d, introduced DEFAULT_SETTINGS enum and usage. Added frame time member variables in prep for improving throw animation when vysync is off.
2010-05-25 20:05:13 +08:00
{
Renamed osgGA::MatrixManipualtor to osgGA::CameraManipulator so its name better reflects it's function
2010-05-27 23:54:37 +08:00
typedef CameraManipulator inherited;
Updated wrappers
2010-05-26 00:27:21 +08:00
public:
// flags
enum UserInteractionFlags
{
UPDATE_MODEL_SIZE = 0x01,
COMPUTE_HOME_USING_BBOX = 0x02,
PROCESS_MOUSE_WHEEL = 0x04,
From Jan Peciva, additional comments, and standarisation of throw and handling of mouse wheel.
2010-06-14 23:20:47 +08:00
SET_CENTER_ON_WHEEL_FORWARD_MOVEMENT = 0x08,
Changed the default behaviour of computeHomePosition so that it uses the bounding sphere of the model rather than computing the bounding box.
2010-06-16 23:56:42 +08:00
DEFAULT_SETTINGS = UPDATE_MODEL_SIZE /*| COMPUTE_HOME_USING_BBOX*/ | PROCESS_MOUSE_WHEEL
Updated wrappers
2010-05-26 00:27:21 +08:00
};
StandardManipulator( int flags = DEFAULT_SETTINGS );
StandardManipulator( const StandardManipulator& m,
Fixed 3 space indenting in headers.
2010-05-26 01:02:11 +08:00
const osg::CopyOp& copyOp = osg::CopyOp::SHALLOW_COPY );
Updated wrappers
2010-05-26 00:27:21 +08:00
// We are not using META_Object as this is abstract class.
// Use META_Object(osgGA,YourManipulator); in your descendant non-abstract classes.
virtual const char* className() const { return "StandardManipulator"; }
Changed setTransformation(eye, center, up) paramter ordering to match gluLookAt conventions.
2010-08-16 19:03:24 +08:00
/** Sets manipulator by eye position and eye orientation.*/
Updated wrappers
2010-05-26 00:27:21 +08:00
virtual void setTransformation( const osg::Vec3d& eye, const osg::Quat& rotation ) = 0;
Changed setTransformation(eye, center, up) paramter ordering to match gluLookAt conventions.
2010-08-16 19:03:24 +08:00
/** Sets manipulator by eye position, center of rotation, and up vector.*/
virtual void setTransformation( const osg::Vec3d& eye, const osg::Vec3d& center, const osg::Vec3d& up ) = 0;
/** Gets manipulator's eye position and eye orientation.*/
Updated wrappers
2010-05-26 00:27:21 +08:00
virtual void getTransformation( osg::Vec3d& eye, osg::Quat& rotation ) const = 0;
Changed setTransformation(eye, center, up) paramter ordering to match gluLookAt conventions.
2010-08-16 19:03:24 +08:00
/** Gets manipulator's focal center, eye position, and up vector.*/
virtual void getTransformation( osg::Vec3d& eye, osg::Vec3d& center, osg::Vec3d& up ) const = 0;
Updated wrappers
2010-05-26 00:27:21 +08:00
virtual void setNode( osg::Node* );
virtual const osg::Node* getNode() const;
virtual osg::Node* getNode();
virtual void setVerticalAxisFixed( bool value );
inline bool getVerticalAxisFixed() const;
From Jan Peciva, additional comments, and standarisation of throw and handling of mouse wheel.
2010-06-14 23:20:47 +08:00
inline bool getAllowThrow() const;
virtual void setAllowThrow( bool allowThrow );
Updated wrappers
2010-05-26 00:27:21 +08:00
virtual void setAnimationTime( const double t );
double getAnimationTime() const;
bool isAnimating() const;
virtual void finishAnimation();
virtual void home( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual void home( double );
virtual void init( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handle( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual void getUsage( osg::ApplicationUsage& usage ) const;
protected:
virtual bool handleFrame( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleResize( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleMouseMove( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleMouseDrag( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleMousePush( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleMouseRelease( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleKeyDown( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleKeyUp( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleMouseWheel( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool handleMouseDeltaMovement( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool performMovement();
From Jan Pecvia, improvements to manipulators and added new manipulator to osgviewer
2010-05-27 21:59:34 +08:00
virtual bool 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 );
Updated wrappers
2010-05-26 00:27:21 +08:00
virtual bool performMouseDeltaMovement( const float dx, const float dy );
virtual bool performAnimationMovement( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual void applyAnimationStep( const double currentProgress, const double prevProgress );
void addMouseEvent( const osgGA::GUIEventAdapter& ea );
void flushMouseEventStack();
virtual bool isMouseMoving() const;
From Jan Pecvia, improvements to manipulators and added new manipulator to osgviewer
2010-05-27 21:59:34 +08:00
float getThrowScale( const double eventTimeDelta ) const;
Updated wrappers
2010-05-26 00:27:21 +08:00
virtual void centerMousePointer( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
static void rotateYawPitch( osg::Quat& rotation, const double yaw, const double pitch,
const osg::Vec3d& localUp = osg::Vec3d( 0.,0.,0.) );
static void fixVerticalAxis( osg::Quat& rotation, const osg::Vec3d& localUp, bool disallowFlipOver );
void fixVerticalAxis( osg::Vec3d& eye, osg::Quat& rotation, bool disallowFlipOver );
static void fixVerticalAxis( const osg::Vec3d& forward, const osg::Vec3d& up, osg::Vec3d& newUp,
From Jan Pecvia, improvements to manipulators and added new manipulator to osgviewer
2010-05-27 21:59:34 +08:00
const osg::Vec3d& localUp, bool disallowFlipOver );
Updated wrappers
2010-05-26 00:27:21 +08:00
virtual bool setCenterByMousePointerIntersection( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
virtual bool startAnimationByMousePointerIntersection( const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us );
// mouse state
bool _thrown;
From Jan Peciva, additional comments, and standarisation of throw and handling of mouse wheel.
2010-06-14 23:20:47 +08:00
bool _allowThrow;
Updated wrappers
2010-05-26 00:27:21 +08:00
float _mouseCenterX, _mouseCenterY;
// internal event stack comprising last two mouse events.
osg::ref_ptr< const osgGA::GUIEventAdapter > _ga_t1;
osg::ref_ptr< const osgGA::GUIEventAdapter > _ga_t0;
/** The approximate amount of time it is currently taking to draw a frame.
* This is used to compute the delta in translation/rotation during a thrown display update.
* It allows us to match an delta in position/rotation independent of the rendering frame rate.
*/
double _delta_frame_time;
/** The time the last frame started.
* Used when _rate_sensitive is true so that we can match display update rate to rotation/translation rate.
*/
double _last_frame_time;
// scene data
osg::ref_ptr< osg::Node > _node;
double _modelSize;
bool _verticalAxisFixed;
// animation stuff
From Wojciech Lewandowski, "We encountered a problem when we tried overloading StandardManipulator class. Linker was unable to find StandardManipulator::AnimationData methods. Prefixing AnimationData with OSGGA_EXPORT removed the issue. Fixed header is attached."
2011-01-12 01:20:25 +08:00
class OSGGA_EXPORT AnimationData : public osg::Referenced {
Updated wrappers
2010-05-26 00:27:21 +08:00
public:
double _animationTime;
bool _isAnimating;
double _startTime;
double _phase;
Added initializers
2016-06-24 18:58:38 +08:00
Updated wrappers
2010-05-26 00:27:21 +08:00
AnimationData();
void start( const double startTime );
};
osg::ref_ptr< AnimationData > _animationData;
virtual void allocAnimationData() { _animationData = new AnimationData(); }
// flags
int _flags;
// flags indicating that a value is relative to model size
int _relativeFlags;
inline bool getRelativeFlag( int index ) const;
inline void setRelativeFlag( int index, bool value );
static int numRelativeFlagsAllocated;
static int allocateRelativeFlag();
From Jan Perciva with changes from Robert Osfield, "I am submitting improved osgGA camera manipulators. Changes: - new mouse wheel zoom/movement/center functionality - ability to fix vertical axis (important for CAD) - possibility to specify values as absolute values or relative to model size - kind of backward compatibility by flags passed to constructor - and much more - restructuring classes to use kind of hierarchy and standard way of event processing (handle methods). This way, there is much more code reusability and it is more easy to develop new kinds of manipulators. Briefly, the new architecture keeps MatrixManipulator as base abstract class. StandardManipulator is the feature-rich standard manipulator with two main descendant classes: OrbitManipulator and FirstPersonManipulator. OrbitManipulator is base class for all trackball style manipulators, based on center, rotation and distance from center. FirstPersonManipulator is base for walk or fly style manipulators, using position and rotation for camera manipulation. " Changes by Robert: Replaced osg::Vec3 by osg::Vec3d, introduced DEFAULT_SETTINGS enum and usage. Added frame time member variables in prep for improving throw animation when vysync is off.
2010-05-25 20:05:13 +08:00
};
//
// inline methods
//
inline bool StandardManipulator::getRelativeFlag( int index ) const
{
Fixed 3 space indenting in headers.
2010-05-26 01:02:11 +08:00
return ( _relativeFlags & (0x01 << index) ) != 0;
From Jan Perciva with changes from Robert Osfield, "I am submitting improved osgGA camera manipulators. Changes: - new mouse wheel zoom/movement/center functionality - ability to fix vertical axis (important for CAD) - possibility to specify values as absolute values or relative to model size - kind of backward compatibility by flags passed to constructor - and much more - restructuring classes to use kind of hierarchy and standard way of event processing (handle methods). This way, there is much more code reusability and it is more easy to develop new kinds of manipulators. Briefly, the new architecture keeps MatrixManipulator as base abstract class. StandardManipulator is the feature-rich standard manipulator with two main descendant classes: OrbitManipulator and FirstPersonManipulator. OrbitManipulator is base class for all trackball style manipulators, based on center, rotation and distance from center. FirstPersonManipulator is base for walk or fly style manipulators, using position and rotation for camera manipulation. " Changes by Robert: Replaced osg::Vec3 by osg::Vec3d, introduced DEFAULT_SETTINGS enum and usage. Added frame time member variables in prep for improving throw animation when vysync is off.
2010-05-25 20:05:13 +08:00
}
inline void StandardManipulator::setRelativeFlag( int index, bool value )
{
if( value ) _relativeFlags |= (0x01 << index);
else _relativeFlags &= (~0x01 << index);
}
/// Returns whether manipulator preserves camera's "UP" vector.
inline bool StandardManipulator::getVerticalAxisFixed() const
{
Fixed 3 space indenting in headers.
2010-05-26 01:02:11 +08:00
return _verticalAxisFixed;
From Jan Perciva with changes from Robert Osfield, "I am submitting improved osgGA camera manipulators. Changes: - new mouse wheel zoom/movement/center functionality - ability to fix vertical axis (important for CAD) - possibility to specify values as absolute values or relative to model size - kind of backward compatibility by flags passed to constructor - and much more - restructuring classes to use kind of hierarchy and standard way of event processing (handle methods). This way, there is much more code reusability and it is more easy to develop new kinds of manipulators. Briefly, the new architecture keeps MatrixManipulator as base abstract class. StandardManipulator is the feature-rich standard manipulator with two main descendant classes: OrbitManipulator and FirstPersonManipulator. OrbitManipulator is base class for all trackball style manipulators, based on center, rotation and distance from center. FirstPersonManipulator is base for walk or fly style manipulators, using position and rotation for camera manipulation. " Changes by Robert: Replaced osg::Vec3 by osg::Vec3d, introduced DEFAULT_SETTINGS enum and usage. Added frame time member variables in prep for improving throw animation when vysync is off.
2010-05-25 20:05:13 +08:00
}
From Jan Peciva, additional comments, and standarisation of throw and handling of mouse wheel.
2010-06-14 23:20:47 +08:00
/// Returns true if the camera can be thrown, false otherwise. It defaults to true.
inline bool StandardManipulator::getAllowThrow() const
{
return _allowThrow;
}
From Jan Perciva with changes from Robert Osfield, "I am submitting improved osgGA camera manipulators. Changes: - new mouse wheel zoom/movement/center functionality - ability to fix vertical axis (important for CAD) - possibility to specify values as absolute values or relative to model size - kind of backward compatibility by flags passed to constructor - and much more - restructuring classes to use kind of hierarchy and standard way of event processing (handle methods). This way, there is much more code reusability and it is more easy to develop new kinds of manipulators. Briefly, the new architecture keeps MatrixManipulator as base abstract class. StandardManipulator is the feature-rich standard manipulator with two main descendant classes: OrbitManipulator and FirstPersonManipulator. OrbitManipulator is base class for all trackball style manipulators, based on center, rotation and distance from center. FirstPersonManipulator is base for walk or fly style manipulators, using position and rotation for camera manipulation. " Changes by Robert: Replaced osg::Vec3 by osg::Vec3d, introduced DEFAULT_SETTINGS enum and usage. Added frame time member variables in prep for improving throw animation when vysync is off.
2010-05-25 20:05:13 +08:00
}
#endif /* OSGGA_CAMERA_MANIPULATOR */
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