测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
GEOMATICS & SPATIAL INFORMATION TECHNOLOGY
2014年
10期
71-74
,共4页
熊枝艳%刘远刚%郭庆胜%孙雅庚
熊枝豔%劉遠剛%郭慶勝%孫雅庚
웅지염%류원강%곽경성%손아경
制图综合%点群移位%比例射线%点群聚类%衰减
製圖綜閤%點群移位%比例射線%點群聚類%衰減
제도종합%점군이위%비례사선%점군취류%쇠감
cartographic generalization%point group displacement%proportional radial%point clustering%attenuation
比例射线移位算法处理冲突目标群,能够较好地保持移位后目标群的空间分布模式,常被应用于点群移位。本文在对已有算法的研究基础上,对其进行改进:首先考虑了存在线状要素时点群移位的新情况;其次,提出了可变参数的衰减函数控制模型。最后本文通过实验,演示了算法的有效性。
比例射線移位算法處理遲突目標群,能夠較好地保持移位後目標群的空間分佈模式,常被應用于點群移位。本文在對已有算法的研究基礎上,對其進行改進:首先攷慮瞭存在線狀要素時點群移位的新情況;其次,提齣瞭可變參數的衰減函數控製模型。最後本文通過實驗,縯示瞭算法的有效性。
비례사선이위산법처리충돌목표군,능구교호지보지이위후목표군적공간분포모식,상피응용우점군이위。본문재대이유산법적연구기출상,대기진행개진:수선고필료존재선상요소시점군이위적신정황;기차,제출료가변삼수적쇠감함수공제모형。최후본문통과실험,연시료산법적유효성。
Proportional radial displacement algorithm can maintain good spatial distribution patterns of the object cluster after displace-ment when dealing with conflicting target group, which is often used to displace point group.The paper, which is based on previous research on algorithm improved it as follows:Firstly, the new situation of point group displacement with Linear elements is taken into account;Next, controllable attenuation function model with variable parameter is put forward.At last, this paper demonstrated the ef-fectiveness of the algorithm through the experiment.