A method for one-dimensional topological entity matching in integration of heterogeneous CAD systems

In the feature modeling procedure, one-dimensional topological entities (edges) are always used as references or operational objects. Hence, to realize the integration of heterogeneous CAD systems, the corresponding one-dimensional topological entities must be found in the target CAD system to match the source ones. This paper presents a method to gain one-dimensional topological entity matching. The method is based on two algorithms, i.e. combining algorithm and matching algorithm. The combining algorithm is adopted to combine the edges retrieved in a source CAD system. Then, for each combined edge, the matching edges are found by using the matching algorithm in a target CAD system. The experiments prove that our method is valid for both offline and online integrations.