基于弹性力学思想的居民地点群目标位移模型

本文引入弹性力学思想对空间目标进行冲突探测及受力分析 ,用空间距离聚类及建立最小生成树的方法把空间关系较近的、相互独立的点状要素聚类组合成多个有机的整体 ,对每个整体用有限元的方法通过多次迭代。本算法的实验结果满足了诸多的制图约束条件 ,能够很方便地应用在制图综合中的位移操作中

A model for point cluster displacement in automated generaligation

It is very important to keep the spatial relation of point features during the process of map generalization .But the accuracy,legibility and aesthetic quality of map usually are contradiction,especially in urban region .Displacement is one of the operation to spatial conflicts solution in the process of cartographic generalization.Sequential methods being used on automated displacement have a long tradition.But this type of approaches can't solve all conflict and,further,they can't compromise between cartographic constraints.Optimization algorithms were only recently introduced to the field of cartographic generalization.The Finite Method is a standard optimization method in engineering science.We suggest a beam model based on the finite method for the displacement of buildings.