crossing of threads

It enhances the ability of local searching by using Simulated Annealing, deals with the solutions out of constrains by linear crossing, and differentiates feasible solutions from unfeasible solutions by .

它用模拟退火算法来增强局部搜索能力,用线性交叉来处理约束以外的解,将可行解与不可行解用适应值的正负来区分。

This paper improved flating horizon algorithm, and presented an algorithm for plotting 3 dimensional cross--hatching based on 3 dimensional geometric transformation and gives the basic ideas for plotting 3 dimensional cross-hatching.

在分析绘制参数曲面浮动水平线算法基础上，针对使用上浮动水平线的情况，改进了浮动水平线算法，并结合三维几何变换、投影变换以及绘制交叉影线的基本思想，提出了一种三维交叉影线的绘制算法，并研究了使用不同颜色绘制三维交叉影线，以便更好地表现三维立体形状。

This paper centers on the analyses and the solution to the shortest line between the two cross-straight lines under the limited conditions.

对限定条件下两交叉直线间的最短连线问题进行了分析与求解。