Pipe net graphic modeling research on user-defined feature
自定义特征的管网图形建模研究

This paper presented the method of pipe net graphic modeling based on user-defined feature.Provided the interface of designing new graphic elements.Extending the elements to set up model,users could define features into feature library and then desiged pipe net model. The method efficiently solved the extensibility of model. To improve university and migration of the modeling,designed the pipe net modeling system with OOP technology. The experiments show that the system designed by the method contains the good interface and convenient operation. It is a very efficient method to implement pipe net model.