Basic HTML version of Foils prepared April 6 1997

Foil 44 Nodes - ExposedFields -III

From VRML 2 Basic Concepts and Definitions CPS616 -- Information Track of CPS -- Spring Semester 97. by Zeynep Ozdemir(Geoffrey C. Fox)


ExposedFields also define the initial value for the node's state, but are public and may be modified by other nodes.
Each exposedField attribute has an associated implicit set_ eventIn and _changed eventOut so that exposed fields may be connected using ROUTE statements, and may be read and/or written by Script nodes
exposedField foo is equivalent to:
  • eventIn set_foo # recieves information that then
  • field foo # sets a value in this field foo
  • eventOUT foo_changed # and generates a foo_changed eventOut



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