Classification and elimination of overlapped entities in DXF files

Computer aided engineering; design, drafting and manufacturing, software packages are widely used in modern industry. The product development cycle, from idea to manufacturing, goes through different stages using different computer aided programs. These programs exchange a lot of information in different formats. One of these formats is 2D drawing in DXF standard format. The exchanged files suffer from overlapped entities and different interpretation for entity formats. This paper emphasizes on the sources of this problem and its negative effects. Moreover, it introduces software for eliminating the overlapping entities and re-classification of them. In addition, the paper explains the algorithms, which are encapsulated in the software.