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)
1 ExposedFields also define the initial value for the node's state, but are public and may be modified by other nodes.
2 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
3 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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