KITAMURA Y, YEE A, KISHINO F. A sophisticated manipulation aid in a virtual environment based on the dynamic constraints among object faces[C]// Proceedings of IEEE International Conferences on Systems, Man and Cybernetics. Washington, D.C., USA: IEEE, 1995: 46654672.
[2]
GOMES'DE SA A, ZACHMANN G. Virtual reality as a tool for verification of assembly and maintenance processes[J].Computers and Graphics,1999,23(3):389403.
