Research on manual sorting for lines in Engineering Drawing based on the secondary development of Inventor

摘要

While dealing with Engineering Drawing based on the secondary development of Inventor, different kinds of label symbols are due to be added based on the lines in the views. For serialized parts, the system sort of the lines will change with the change of 3D models, so we need to add manual sort artificially. Through research, several methods of manual sorting have been summarized: First to traverse lines based on shape, filter out the types of the lines. Then traverse the types, take advantage of extreme value method, method using center of the view as reference system, method using manual sorted line as reference system, and composite method to positioning lines, give them manual sorting. These methods solved the sort consistency of the same lines in different views, ensured the accuracy of labeling.