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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 that 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 us 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, R.; Soto, A. A constraint-based dynamic geometry system. "Computer-Aided Design", Febrer 2010, vol. 42, núm. 2, p. 151-161.
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