Basic HTML version of Foils prepared March 18 1998

Foil 6 Field Types based on Event Model

From Scripting and EAI in VRML97 CPS616 -- Information Track of CPS -- Spring Semester 98. by Hasan Ozdemir (Geoffrey C. Fox)
Based on Event Model, each field can be one of those categories:
  • field : data values that define the characteristics of the node which cannot be changed.
  • eventIn : this field accepts an incoming event that will change its value (Sink node)
  • eventOut : this field produces an event whenever its value changes (Source node)
  • exposedField : It is eventIn and eventOut at the same time. In the standard, if any field is defined as an exposedField, this means that set_XXXX and XXXX_changed events are exist.

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