Subgraph-based Sketch Design and Constraint Solving
Hongwei Dong · Computer Era · 2011
A subgraph-based quasi-sequential sketch design approach is presented.The identifier-based constraint model unifies the 2D and 3D constraints,and makes each geometric element correspond to a unique identifier.The constraints between geometric elements are represented as the constraints between identifiers,and these constraints are classified into structural constraints and dimensional constraints.A constraint solving method based on sequential design process is proposed.The experiments show that the technique can conduct parametric sketching and feature editing rapidly and efficiently.