osg::WalkNavigator Class Reference
[Navigators]

#include <OSGWalkNavigator.h>

Inheritance diagram for osg::WalkNavigator:

List of all members.

Public Member Functions

Constructors

WalkNavigator ()

Destructors

~WalkNavigator ()

Set

void setGround (NodePtr &new_ground)

void setWorld (NodePtr &new_world)

void setGroundDistance (Real32 groundDistance)

void setMinWallDistance (Real32 wallDistance)

void setPersonDimensions (Real32 height, Real32 width, Real32 fatness)

Walker Transformations

void rotate (Real32 deltaX, Real32 deltaY)

Real32 forward (Real32 step)

Real32 right (Real32 step)

Get

Matrix & getMatrix (void)

Pnt3f & getFrom (void)

Pnt3f & getAt (void)

Vec3f & getUp (void)

Set

void setFrom (Pnt3f new_from)

void setAt (Pnt3f new_at)

void setUp (Vec3f new_up)

void set (Pnt3f new_from, Pnt3f new_at, Vec3f new_up)

void set (Matrix new_matrix)

Protected Attributes

Members

Pnt3f _rFrom

Pnt3f _rAt

Vec3f _vUp

Matrix _tMatrix

Private Attributes

Members

NodePtr _ground

NodePtr _world

Real32 _groundDistance

Real32 _wallDistance

Real32 _height

Real32 _width

Real32 _fatness

IntersectAction * _act

Detailed Description

Definition at line 50 of file OSGWalkNavigator.h.

Constructor & Destructor Documentation

WalkNavigator::WalkNavigator ( )

Constructor

Definition at line 63 of file OSGWalkNavigator.cpp.

References _act, and osg::IntersectAction::create().

00063                             : FlyNavigator(),
00064     _ground(NullFC),
00065     _world(NullFC),
00066     _groundDistance(0.75),
00067     _wallDistance(0.1),
00068     _height(0.85),
00069     _width(0.5),
00070     _fatness(0.5)
00071 {
00072     _act = IntersectAction::create();
00073 }

WalkNavigator::~WalkNavigator ( )

Destructor

Definition at line 80 of file OSGWalkNavigator.cpp.

References _act.

00081 {
00082     delete _act;
00083 }

Member Function Documentation

void WalkNavigator::setGround ( NodePtr & new_ground )

Definition at line 92 of file OSGWalkNavigator.cpp.

References _ground.

Referenced by osg::Navigator::setViewport().

00093 {
00094     _ground=new_ground;
00095 }

void WalkNavigator::setWorld ( NodePtr & new_world )

Definition at line 97 of file OSGWalkNavigator.cpp.

References _world.

Referenced by osg::Navigator::setViewport().

00098 {
00099     _world=new_world;
00100 }

void WalkNavigator::setGroundDistance ( Real32 groundDistance )

Definition at line 102 of file OSGWalkNavigator.cpp.

References _groundDistance.

00103 {
00104     _groundDistance=groundDistance;
00105 }

void WalkNavigator::setMinWallDistance ( Real32 wallDistance )

Definition at line 107 of file OSGWalkNavigator.cpp.

References _wallDistance.

00108 {
00109     _wallDistance=wallDistance;
00110 }

void WalkNavigator::setPersonDimensions	(	Real32	height,
		Real32	width,
		Real32	fatness
	)

Definition at line 112 of file OSGWalkNavigator.cpp.

References _fatness, _height, and _width.

00113 {
00114     _height  = height;
00115     _width   = width;
00116     _fatness = fatness;
00117 }

void WalkNavigator::rotate	(	Real32	deltaX,
		Real32	deltaY
	)

makes a rotation

Reimplemented from osg::FlyNavigator.

Definition at line 124 of file OSGWalkNavigator.cpp.

References osg::FlyNavigator::rotate().

Referenced by osg::Navigator::keyPress(), and osg::Navigator::moveTo().

00125 {
00126     FlyNavigator::rotate(deltaX, deltaY);
00127 }

Real32 WalkNavigator::forward ( Real32 step )

"walks" forward

Reimplemented from osg::FlyNavigator.

Definition at line 132 of file OSGWalkNavigator.cpp.

References _act, _fatness, _ground, _groundDistance, _height, osg::FlyNavigator::_rAt, osg::FlyNavigator::_rFrom, osg::FlyNavigator::_vUp, _wallDistance, _world, osg::Action::apply(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::crossThis(), osg::IntersectAction::didHit(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::dot(), osg::IntersectAction::getHitT(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::normalize(), osg::IntersectAction::setLine(), and osg::Line::setValue().

Referenced by osg::Navigator::buttonPress(), osg::Navigator::keyPress(), osg::Navigator::moveTo(), and osg::Navigator::setDistance().

00133 {
00134     Vec3f lv = _rFrom - _rAt;
00135     lv.normalize();
00136 
00137     Vec3f upn = _vUp;
00138     upn.normalize();
00139 
00140     Vec3f mv = lv - upn.dot(lv)*upn;
00141     mv.normalize();
00142 
00143     //side vector symbolizes shoulders
00144     Vec3f sv = mv;
00145     sv.crossThis(upn);
00146     sv.normalize();
00147 
00148     Pnt3f rFrom = _rFrom + step*mv;
00149     Pnt3f rAt = _rAt + step*mv;
00150 
00151     Real32 dist;
00152     Line line(rFrom, -upn);
00153 
00154     //keep the walker at a constant distance from the ground
00155     _act->setLine(line);
00156     _act->apply(_ground);
00157 
00158     if (_act->didHit()) {
00159         dist = _act->getHitT();
00160         if (dist >= _height) {
00161             rFrom = rFrom + (_groundDistance-dist+_height)*upn;
00162             rAt = rAt + (_groundDistance-dist+_height)*upn;
00163         }
00164         else return 0.0;    //can't jump so high
00165     }
00166 
00167     //finally check if the move is correct or not
00168 
00169     line.setValue(_rFrom, mv);
00170     _act->setLine(line);
00171     _act->apply(_world);
00172 
00173     if (_act->didHit()) {
00174         dist = _act->getHitT();
00175         if (dist <= (rFrom-_rFrom).length()+_fatness+_wallDistance)
00176             return 0.0;     //running against a wall
00177     }
00178 
00179     //move was ok, store new values
00180     _rFrom = rFrom;
00181     _rAt = rAt;
00182     return step;
00183 }

Real32 WalkNavigator::right ( Real32 step )

turns the viewer right or left

Reimplemented from osg::FlyNavigator.

Definition at line 188 of file OSGWalkNavigator.cpp.

References _act, _fatness, _ground, _groundDistance, _height, osg::FlyNavigator::_rAt, osg::FlyNavigator::_rFrom, osg::FlyNavigator::_vUp, _wallDistance, _world, osg::Action::apply(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::crossThis(), osg::IntersectAction::didHit(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::dot(), osg::IntersectAction::getHitT(), osg::VectorInterface< ValueTypeT, StorageInterfaceT >::normalize(), osg::IntersectAction::setLine(), and osg::Line::setValue().

Referenced by osg::Navigator::keyPress().

00189 {
00190 //    Int16 sign = (step >= 0) ? -1 : 1;
00191 //    Real32 angle = 0.19634954f;
00192 //
00193 //    //rotate around the up vector
00194 //    FlyNavigator::rotate(sign*angle, 0);
00195 //    return step;
00196 
00197     Vec3f lv = _rFrom - _rAt;
00198     lv.normalize();
00199 
00200     Vec3f upn = _vUp;
00201     upn.normalize();
00202 
00203     Vec3f mv = lv - upn.dot(lv)*upn;
00204     mv.normalize();
00205 
00206     //side vector symbolizes shoulders
00207     Vec3f sv = mv;
00208     sv.crossThis(upn);
00209     sv.normalize();
00210 
00211     Pnt3f rFrom = _rFrom + step*sv;
00212     Pnt3f rAt = _rAt + step*sv;
00213 
00214     Real32 dist;
00215     Line line(rFrom, -upn);
00216 
00217     //keep the walker at a constant distance from the ground
00218     _act->setLine(line);
00219     _act->apply(_ground);
00220 
00221     if (_act->didHit()) {
00222         dist = _act->getHitT();
00223         if (dist >= _height) {
00224             rFrom = rFrom + (_groundDistance-dist+_height)*upn;
00225             rAt = rAt + (_groundDistance-dist+_height)*upn;
00226         }
00227         else return 0.0;    //can't jump so high
00228     }
00229 
00230     //finally check if the move is correct or not
00231 
00232     line.setValue(_rFrom, sv);
00233     _act->setLine(line);
00234     _act->apply(_world);
00235 
00236     if (_act->didHit()) {
00237         dist = _act->getHitT();
00238         if (dist <= (rFrom-_rFrom).length()+_fatness+_wallDistance)
00239             return 0.0;     //running against a wall
00240     }
00241 
00242     //move was ok, store new values
00243     _rFrom = rFrom;
00244     _rAt = rAt;
00245     return step;
00246 }

Matrix & FlyNavigator::getMatrix ( void ) [inherited]

Get the current transformation matrix.

Definition at line 102 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_rAt, osg::FlyNavigator::_rFrom, osg::FlyNavigator::_tMatrix, osg::FlyNavigator::_vUp, and osg::MatrixLookAt().

Referenced by osg::Navigator::getMatrix().

00103 {
00104     MatrixLookAt(_tMatrix,_rFrom,_rAt,_vUp);
00105     return _tMatrix;
00106 }

Pnt3f & FlyNavigator::getFrom ( void ) [inherited]

Get the from point.

Definition at line 110 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_rFrom.

Referenced by osg::Navigator::getFrom().

00111 {
00112     return _rFrom;
00113 }

Pnt3f & FlyNavigator::getAt ( void ) [inherited]

Get the at point.

Definition at line 117 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_rAt.

Referenced by osg::Navigator::getAt().

00118 {
00119     return _rAt;
00120 }

Vec3f & FlyNavigator::getUp ( void ) [inherited]

Get the up vector.

Definition at line 124 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_vUp.

Referenced by osg::Navigator::getUp().

00125 {
00126     return _vUp;
00127 }

void FlyNavigator::setFrom ( Pnt3f new_from ) [inherited]

Set the from point, the point where the viewer is (i.e the center of all transformations).

Definition at line 135 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_rFrom.

Referenced by osg::Navigator::setFrom().

00136 {
00137     _rFrom=new_from;
00138 }

void FlyNavigator::setAt ( Pnt3f new_At ) [inherited]

Sets the target point at which the viewer is looking.

Definition at line 142 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_rAt.

Referenced by osg::Navigator::setAt().

00143 {
00144     _rAt=new_At;
00145 }

void FlyNavigator::setUp ( Vec3f new_up ) [inherited]

Sets the up vector, i.e. the direction that point up on the screen.

Definition at line 149 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_vUp.

Referenced by osg::Navigator::setUp().

00150 {
00151     _vUp=new_up;
00152 }

void FlyNavigator::set	(	Pnt3f	new_from,
		Pnt3f	new_At,
		Vec3f	new_up
	)			`[inherited]`

Set the position and the orientation at once.

Definition at line 156 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_rAt, osg::FlyNavigator::_rFrom, and osg::FlyNavigator::_vUp.

Referenced by osg::Navigator::set().

00157 {
00158     _rFrom=new_from;
00159     _rAt=new_At;
00160     _vUp=new_up;
00161 }

void FlyNavigator::set ( Matrix new_matrix ) [inherited]

Set the position and the orientation at once using a matrix.

Definition at line 165 of file OSGFlyNavigator.cpp.

References osg::FlyNavigator::_rAt, osg::FlyNavigator::_rFrom, and osg::FlyNavigator::_vUp.

00166 {
00167     _rFrom= (Pnt3f) new_matrix[3];
00168     _rAt  = (Pnt3f)(new_matrix[3] - new_matrix[2]);
00169     _vUp  = (Vec3f) new_matrix[1];
00170     set(_rFrom, _rAt, _vUp);
00171 }

Member Data Documentation

NodePtr osg::WalkNavigator::_ground [private]

Definition at line 101 of file OSGWalkNavigator.h.

Referenced by forward(), right(), and setGround().

NodePtr osg::WalkNavigator::_world [private]

Definition at line 102 of file OSGWalkNavigator.h.

Referenced by forward(), right(), and setWorld().

Real32 osg::WalkNavigator::_groundDistance [private]

Definition at line 104 of file OSGWalkNavigator.h.

Referenced by forward(), right(), and setGroundDistance().

Real32 osg::WalkNavigator::_wallDistance [private]

Definition at line 105 of file OSGWalkNavigator.h.

Referenced by forward(), right(), and setMinWallDistance().

Real32 osg::WalkNavigator::_height [private]

Definition at line 106 of file OSGWalkNavigator.h.

Referenced by forward(), right(), and setPersonDimensions().

Real32 osg::WalkNavigator::_width [private]

Definition at line 107 of file OSGWalkNavigator.h.

Referenced by setPersonDimensions().

Real32 osg::WalkNavigator::_fatness [private]

Definition at line 108 of file OSGWalkNavigator.h.

Referenced by forward(), right(), and setPersonDimensions().

IntersectAction* osg::WalkNavigator::_act [private]

Definition at line 110 of file OSGWalkNavigator.h.

Referenced by forward(), right(), WalkNavigator(), and ~WalkNavigator().

osg::FlyNavigator::_rFrom [protected, inherited]

The from point, i.e. the viewer position.

Definition at line 109 of file OSGFlyNavigator.h.

Referenced by osg::FlyNavigator::FlyNavigator(), forward(), osg::FlyNavigator::forward(), osg::FlyNavigator::getFrom(), osg::FlyNavigator::getMatrix(), right(), osg::FlyNavigator::right(), osg::FlyNavigator::rotate(), osg::FlyNavigator::set(), and osg::FlyNavigator::setFrom().

osg::FlyNavigator::_rAt [protected, inherited]

The at point, i.e. the target position.

Definition at line 110 of file OSGFlyNavigator.h.

Referenced by osg::FlyNavigator::FlyNavigator(), forward(), osg::FlyNavigator::forward(), osg::FlyNavigator::getAt(), osg::FlyNavigator::getMatrix(), right(), osg::FlyNavigator::right(), osg::FlyNavigator::rotate(), osg::FlyNavigator::set(), and osg::FlyNavigator::setAt().

osg::FlyNavigator::_vUp [protected, inherited]

The up vector.

Definition at line 111 of file OSGFlyNavigator.h.

Referenced by osg::FlyNavigator::FlyNavigator(), forward(), osg::FlyNavigator::getMatrix(), osg::FlyNavigator::getUp(), right(), osg::FlyNavigator::right(), osg::FlyNavigator::rotate(), osg::FlyNavigator::set(), and osg::FlyNavigator::setUp().

osg::FlyNavigator::_tMatrix [protected, inherited]

The transformation matrix for this navigator.

Definition at line 112 of file OSGFlyNavigator.h.

Referenced by osg::FlyNavigator::FlyNavigator(), and osg::FlyNavigator::getMatrix().

The documentation for this class was generated from the following files:


Public Member Functions
Constructors

	WalkNavigator ()
Destructors

	~WalkNavigator ()
Set
void	setGround (NodePtr &new_ground)
void	setWorld (NodePtr &new_world)
void	setGroundDistance (Real32 groundDistance)
void	setMinWallDistance (Real32 wallDistance)
void	setPersonDimensions (Real32 height, Real32 width, Real32 fatness)
Walker Transformations

void	rotate (Real32 deltaX, Real32 deltaY)
Real32	forward (Real32 step)
Real32	right (Real32 step)
Get

Matrix &	getMatrix (void)
Pnt3f &	getFrom (void)
Pnt3f &	getAt (void)
Vec3f &	getUp (void)
Set

void	setFrom (Pnt3f new_from)
void	setAt (Pnt3f new_at)
void	setUp (Vec3f new_up)
void	set (Pnt3f new_from, Pnt3f new_at, Vec3f new_up)
void	set (Matrix new_matrix)
Protected Attributes
Members

Pnt3f	_rFrom
Pnt3f	_rAt
Vec3f	_vUp
Matrix	_tMatrix
Private Attributes
Members

NodePtr	_ground
NodePtr	_world
Real32	_groundDistance
Real32	_wallDistance
Real32	_height
Real32	_width
Real32	_fatness
IntersectAction *	_act

osg::WalkNavigator Class Reference [Navigators]

Public Member Functions

Protected Attributes

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

osg::WalkNavigator Class Reference
[Navigators]