Research on Collision Check Strategy in Process of Graph Editing
图形编辑过程冲突消解策略研究

Collision is a familiar phenomenon in collaborative graph editing system, how to clear up collision reasonably is a key question for graph collaborative editing. Collision check strategy in collaborative graph editing system is discussed in this paper, collision detection strategy based on time and space interference,affairs grouping strategy and a solution to collision check based on a tree of affair correlation are researched. At last, a collaborative graph editing prototype system that adopts collision check strategy and uses gesture as an interaction instrument is presented. The system has been tested run in practice at present.