Research of Collaborative CAD which Based on Local Modeling Space

Through studying and analyzing collaborative CAD system deeply, we introduce the idea of the cellular model, the maximum value space and the principle of sufficiency etc. into the mechanism of the Collaborative Modeling, and put forward a new method of Collaborative Modeling based on the local modeling space, by which all the validity verification of user´s operation is classified into two sorts-local verification and global verification, 90% load of the server is reduced, at the same time, the total amount of transmission data is reduced, and the efficiency of parallel is raised too. By experiment on HUST-CAID system, all algorithms are practicable.