CONSTRAINT-SOLVING IN INTERACTIVE GRAPHICS A USER-FRIENDLY APPROACH
Date
1988-11-01
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Abstract
Solving constraints is an important part of interactive graphics, and
a number of constraint solvers that operate in this domain have been
designed and implemented. However, most of these systems are
deficient in two respects: the method of specifying constraints is
counter-intuitive, and only a restricted class of constraints is
representable. After describing the problems inherent in current
systems, we propose a simple constraint solver and its user interface,
Metamouse. The user of this system specifies constraints by giving
examples in the form of execution traces; the system induces a
generalized procedure. Thus constraint specification is natural-the
user simply performs his task as usual-and the class of representable
constraints includes anything the user could accomplish manually
with the graphics editor.
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Computer Science