Intelligent replacement method for sketch module

The invention provides an intelligent replacement method for a sketch module. At the initial design stage of the sketch module, the sketch module interface geometric elements are renamed according to an interface naming rule, the names with semantics and identification attributes are given to the sketch module interface geometric elements to serve as ID identifications for recognition during sketch module replacement, and the sketch module is stored in a module library. The method comprises the steps of when the sketch module needs to be replaced from the overall sketch, firstly, identifying and deleting the sketch module, then calling other sketch modules with the same type, different shapes and constraints from a module library, and finally fusing the newly called sketch modules and the overall sketch to complete the intelligent replacement of the local sketch modules in the overall sketch. According to the present invention, the complex processes of manual selection, deletion, redrawing, marking and the li