The Use of the Metric Diagram in Qualitative Kinematics
نویسنده
چکیده
A promising approach to qualitative reasoning about mechanism kinematics is the theory of pace vocabu:aries . In this paper, we propose a new method of computing the place vocabulary representation . The computation is split into the combinatorial manipulation of the symbolic information, and the evaluation of predicates on the metric dimensions by an abstract device, the metric diagram . This abstraction allows reasoning about mechanism behavior without reference to an explicit representation of the numeric dimensions of the parts. When the metric information is incomplete, the solution may contain ambiguities. When no metric information is available, the result is an ambiguous, but purely symbolic, place vocabulary . This provides an existance proof that purely symbolic spatial reasoning is possible .
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