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Dynamic geometry systems are tools for geometric visualization.
They allow the user to define geometric elements, establish relationships
between them and explore the dynamic behavior of the
remaining geometric elements when one of them is moved. The
main problem in dynamic geometry systems is the ambiguity that
arises from operations which lead to more than one possible solution.
Most dynamic geometry systems deal with this problem in
such a way that the solution selection method leads to a fixed dynamic
behavior of the system. This is specially annoying when the
behavior observed is not the one the user intended.
In this work we propose a modular architecture for dynamic geometry
systems built upon a set of functional units which will allow
to apply some well known results from the Geometric Constraint
Solving field. A functional unit called filter will provide the user
with tools to unambiguously capture the expected dynamic behavior
of a given geometric problem.
CitationFreixas, M.; Joan-Arinyo, R.; Soto, A. A Constraint-Based Dynamic Geometry System. A: ACM Symposium on Solid and Physical Modeling. "ACM Symposium on Solid and Physical Modeling". New York: ACM, 2008, p. 37-46.
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