A Relational Geometric Model for Variational Geometry
نویسندگان
چکیده
This paper presents a relational geometric model for variational geometry. A geometric object in a relational geometric model is represented based on its geometric relationship to other geometric objects and is unilaterally dependent on these objects. Through the unilateral dependency among the geometric objects local dimensional changes can be propagated to the whole model easily so that the consistency of the geometric model is maintained. A new concept called late constraint is introduced to deal with the situation of cyclic dependency among the geometric objects. By using late constraints the number of constraint equations which have to be solved simultaneously can be reduced to a minimum by the user. KEYWORDs: Geometric model, geometric constraint, geometric relationship, dimension, variational geometry, geometric object, Geometric Modeling Primitive(GMP), late constraint.
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