Interactive Geometric Configuration Using Sketch-Based CAD Models

Abstract

Knowledge-based geometry models reduce variant design to the input of parameter values. Especially knowledge-based CAD models that incorporate geometrical data and implemented explicit knowledge offer additional possibilities. One is interactive drag-and-drop control of geometric features. This poses new requirements for the setup of CAD models as each geometric constraint, dimension and 3D feature contributes to the variability of the model. In this paper, the authors give methodological guidance to such modeling tasks by extending the CommonKADS approach with a correlation model for CAD model entities. The guidelines are visualized for the creation of an interactive, configurable steel construction model.