This paper describes the method of the directional plane, an effective method to realize the geometricalconstruction.
本文介绍了实现几何构型的一个行之有效的方法——有向平面法。
2
The paper deduces tangent stiffness matrix and set up geometrical nonlinear model of construction control calculation of the cable-stayed bridge.
推演了索单元的切线刚度矩阵，建立了斜拉桥施工控制计算的几何非线性模型。
3
This article discusses the construction of geometrical modeling in simulation training system for portal crane and the implementation of collision detection by the use of fixed direction hull (FDH).