Research on STEP-based 3D model reconstruction and feature recognition

This paper used the STEP AP203 files as the input information, an 3D reconstruction module was developed on the basis of Open CASCADE 3D modeling platform by using the Visual C++. The data structure of STEP neutral file was analyzed and the correspondent C++ class of its geometry and topology information was designed. By using the STEP-Based attributed adjacency graph matching technique, features in the STEP model would be recognized. The DNAFRS system with the 3D reconstruction module and feature recognition module was developed.