Introduction - If you have any usage issues, please Google them yourself
ACIS is an open, using C language structure of the development of 3D modeling system, which was characterized to wireframe, surface and solid modeling into one, and these three can coexist said in a data structure. Currently, ACIS widely used CAD, AEC, automation technology, and ship manufacturing, and other technical fields. ACIS is the component of the core components, provides a basic core entities and attributes the support of topological and geometric entities category, math class, and the preservation of documents Kunfan, history and backtracking function.