Extraction and reconstruction technique of AutoCAD graphic on Qt platform

This study is concerned with the extraction and reconstruction technique of AutoCAD graphic files on Qt platform. This paper presents the method to analyze DXF file coding to extract the CAD graphic files information, and to reconstruct by the drawing engine of Qt platform. Furthermore, combined with the characteristics of the drawing engine of Qt, the study adds alternative coloring strategies and constrained scaling operations for reconstructed graphic. It provides powerful auxiliary functions for programming application on Qt platform.