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| A '''parametric feature based modeler''' is a ] (CAD) software package that uses either a ] (CSG) or a ] (B-REP) modeler that allows a user to refer to features instead of the underlying geometry. | |||
| A feature is a term referring to higher order CAD entities. For example, given a 3D brick with a hole, the ''hole'' is considered a feature in the ''brick'' to reflect the manufacturing process used to create it, rather than referring to the hole by the mathematical term cylinder. | |||
| Parametric feature based modelers use ]s to maintain information about building the model and use expressions to constrain associations between the geometric entities. This ability allows a user make a modification at any state and to regenerate the model's ] based on those changes. This ability is called a ]. | |||
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Revision as of 03:50, 11 February 2009
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