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Open Inventor is an object oriented 3D graphics toolkit written in C++. Because Open Inventor is written in C++, typical user code development consists of a program/compile/debug iteration cycle. In this sketch, we introduce InvenTcl which is an interpretive version of Open Inventor. Our interpretive version of Open Inventor uses the interpretive language(More)
Open Inventor is an object oriented 3D graphics toolkit written in C++. Because Open Inventor is written in C++, typical user code development consists of a program/compile/debug iteration cycle. This paper introduces InvenTcl which is an in-terpretive version of Open Inventor using Tcl/Tk [4] and [incr Tcl] [3]. The advantages of InvenTcl include:(More)
Asynchronous, Hierarchical Agents (AHAs) provide a vertically structured multilevel abstraction hierarchy. In this paper, we argue that this multilevel hierarchy is a convenient way to create a human-agent interface at multiple levels of abstraction. In this way, the agent has several layers of specication (input) and visualization (output) which(More)
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