vrml.route

ROUTE and ISRoute Implementations (event-processing)

Classes

class IS( ROUTE ):
An is-mapping for a field/event
Functionally, an instantiated IS is just a multi-directional ROUTE (that is, it's a route to and from a given field on the base node to the sub-nodes.
bind( self )
Bind the in and out routes for the IS mapping
forward( self , signal , sender , event = None , value = None , ** arguments )
Forward a value update to our destination (or source)
class MFRoute( MFNode ):
Multiple-value-field ROUTEs
baseSFNode
exposedField SFRoute SFNode <bound method SFRout
class ROUTE( Node ):
Representation and implementation of a VRML97 ROUTE
This implementation uses the dispatcher module to create an approximation of the VRML97 event model. It allows nodes to forward events via the ROUTE objects, and watches for event cycles.
destination
exposedField SFNode SFNode <bound method SFNode
destinationField
exposedField SFString destinationField
source
exposedField SFNode SFNode <bound method SFNode
sourceField
exposedField SFString sourceField
__init__( self , * arguments , ** named )
Initialize the route object
Calls self.bind() after normal node.Node argument processing.
__str__( self )
Get a friendly representation of the Node
_bind( self , source , field )
Low-level binding of the source,field key
This method allows sub-classes to do multiple bindings when bind() is called.
_forward( self , sender , signal , destination , destinationField , event = None , value = None , ** arguments )
Do the low-level forwarding of the value to a target field
bind( self )
Bind this ROUTE node's source to destination
Should also setup notification for changes to our values to cause changes to the ROUTING table in dispatcher.
copy( self , copier )
Copy the route for the copier object
forward( self , signal , sender , event = None , value = None , ** arguments )
Forward a value update to our destination
class SFRoute( SFNode ):
Single-field ROUTE value