Home

LeapJS is a Javascript library that provides the functionality and object structure of the Leap API to assist developers who are working with the Leap Motion in a browser environment.

API

Leap

• string APIVersion
• string serverVersion
• Calibrate
  • Calibrate( Controller controller )
  • virtual void onComplete( Screen screen )
• Controller
  • Controller( string connection )
  • Bool isConnected()
  • Frame frame()
  • Frame frame( Int index )
  • void addListener( Listener listener )
  • void removeListener( Listener listener )
  • void enableGesture( string type, Bool enable )
  • Bool isGestureEnabled( string type )
  • ScreenList locatedScreens()
• Listener
  • Listener()
  • void onConnect( Controller controller )
  • void onDisconnect( Controller controller )
  • void onExit( Controller controller )
  • void onFrame( Controller controller )
  • void onInit( Controller controller )
• Frame
  • Frame()
  • string id()
  • string timestamp()
  • FingerList fingers()
  • ToolList tools()
  • PointableList pointables()
  • HandList hands()
  • Finger finger( string id )
  • Hand hand( string id )
  • Pointable pointable( string id )
  • Tool tool( string id )
  • GestureList gestures()
  • float rotationAngle( Frame sinceFrame )
  • Vector rotationAxis( Frame sinceFrame )
  • Matrix rotationMatrix( Frame sinceFrame )
  • float scaleFactor( Frame sinceFrame )
  • Vector translation( Frame sinceFrame )
  • string tostring()
  • Bool compare( Frame other )
  • Bool isValid()
  • static Frame invalid()
• Gesture
  • string id()
  • Frame frame()
  • string state()
  • string type()
  • string toString()
• CircleGesture : Gesture
  • Type "circle"
  • Vector normal()
  • Pointable pointable()
  • float progress()
  • float radius()
• KeyTapGesture : Gesture
  • Type "keyTap"
  • Vector direction()
  • Pointable pointable()
  • Vector position()
  • float progress()
• ScreenTapGesture : Gesture
  • Type "screenTap"
  • Vector direction()
  • Pointable pointable()
  • Vector position()
  • float progress()
• SwipeGesture : Gesture
  • Type "swipe"
  • Vector direction()
  • Pointable pointable()
  • Vector position()
  • float speed()
  • Vector startPosition()
• Hand
  • Hand()
  • Frame frame()
  • string id()
  • FingerList fingers()
  • ToolList tools()
  • PointableList pointables()
  • Vector direction()
  • Vector palmNormal()
  • Vector palmPosition()
  • Vector palmVelocity()
  • Vector sphereCenter()
  • float sphereRadius()
  • Finger finger( string id )
  • Pointable pointable( string id )
  • Tool tool( string id )
  • float rotationAngle( Frame sinceFrame )
  • Vector rotationAxis( Frame sinceFrame )
  • Matrix rotationMatrix( Frame sinceFrame )
  • float scaleFactor( Frame sinceFrame )
  • Vector translation( Frame sinceFrame )
  • string tostring()
  • Bool isValid()
  • static Hand invalid()
• HandList
  • HandList()
  • Hand operator[]
  • void append( HandList other )
  • int count()
  • Bool isEmpty()
• Finger : Pointable
  • Finger()
  • static Finger invalid()
• FingerList
  • FingerList()
  • Finger operator[]
  • void append( FingerList other )
  • int count()
  • Bool isEmpty()
• Tool : Pointable
  • Tool()
  • static Tool invalid()
• ToolList
  • ToolList()
  • Tool operator[]
  • void append( ToolList other )
  • int count()
  • Bool isEmpty()
• Pointable
  • Pointable()
  • Frame frame()
  • Hand hand()
  • string id()
  • Vector direction()
  • Vector tipPosition()
  • Vector tipVelocity()
  • float length()
  • float width()
  • Bool isFinger()
  • Bool isTool()
  • string tostring()
  • Bool compare( Pointable other )
  • Bool isValid()
  • static Pointable invalid()
• PointableList
  • PointableList()
  • PointableList( PointableList other )
  • Pointable operator[]
  • void append( PointableList other )
  • void append( FingerList other )
  • void append( ToolList other )
  • int count()
  • Bool isEmpty()
• Screen
  • Screen()
  • float distanceToPoint( Vector point )
  • { position : Vector, distance : float } intersect( Pointable pointable, Bool normalize )
  • { position : Vector, distance : float } intersect( Vector position, Vector direction, Bool normalize )
  • { position : Vector, distance : float } project( Pointable pointable, Bool normalize )
  • { position : Vector, distance : float } project( Vector position, Bool normalize )
  • Vector normal()
  • void offset()
  • Bool isValid()
  • static Screen invalid()
• ScreenList
  • ScreenList()
  • Screen operator[]
  • int count()
  • Screen closestScreenHit( Pointable pointable )
  • Bool isEmpty()
• Vector
  • Vector()
  • Vector( Vector other )
  • Vector( [ float x, float y, float z ] )
  • float x
  • float y
  • float z
  • float angleTo( Vector other )
  • Vector cross( Vector other )
  • float distanceTo( Vector other )
  • float dot( Vector other )
  • Vector plus( Vector other )
  • Vector minus( Vector other )
  • Vector multiply( float scalar )
  • Vector dividedBy( float scalar )
  • float magnitude()
  • float magnitudeSquared()
  • Vector normalized()
  • float pitch()
  • float roll()
  • float yaw()
  • string tostring()
  • Bool compare( Vector other )
  • Bool isValid()
  • static Vector backward()
  • static Vector down()
  • static Vector forward()
  • static Vector left()
  • static Vector right()
  • static Vector up()
  • static Vector xAxis()
  • static Vector yAxis()
  • static Vector zAxis()
  • static Vector zero()
• Matrix
  • Matrix()
  • Matrix( Matrix other )
  • Matrix( [ Vector xBasis, Vector yBasis, Vector zBasis ] )
  • Matrix( [ Vector xBasis, Vector yBasis, Vector zBasis, Vector origin ] )
  • Vector xBasis
  • Vector yBasis
  • Vector zBasis
  • Vector origin
  • Matrix rigidInverse()
  • void setRotation( Vector axis, float angle )
  • void transformPoint( Vector data )
  • void transformDirection( Vector data )
  • Matrix times( Matrix other )
  • float[] toArray3x3()
  • void toArray3x3( float[] output )
  • float[] toArray4x4()
  • void toArray4x4( float[] output )
  • string tostring()
  • Bool compare( Matrix other )
  • static Matrix identity()