Automatic Drawing of Scleronomic Activity-On-Arrow Network

To meet some special needs, this article primarily introduced an automatic node arranging algorithm of Scleronomic activity-on-arrow network. By introducing the concept of main-path, the thoughts and steps of the algorithm realization, which means to arrange the nodes around the main-path from inside to outside, it helps the readers to understand the algorithm easily. The algorithm provides the necessary technical support to realize the auto drawing of PERT network chart. Its correctness has been proved in the auto drawings of various project network charts.