In this paper, we treat the convex polygon domain as locus of points and give its equation.
在传统解析几何中，平面区域未被作为点的轨迹来看待，因此没有研究平面区域的方程问题。
2
Combined with theoretical analysis and experimental data, modified some influential parameters in equation of locus and VB program, then attained a program that can simulate actual situation better.
Kinematic equation of five-bar mechanism with multi-straight-line locus was derived from the theory of mechanics, and animation simulation for the mechanism was programmed by MATLAB language.