| 一种改进的点群移位算法及其应用 |
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| 引用本文： | 熊枝艳,刘远刚,郭庆胜,孙雅庚.一种改进的点群移位算法及其应用[J].测绘与空间地理信息,2014(10):71-74. |
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| 作者姓名： | 熊枝艳 刘远刚 郭庆胜 孙雅庚 |
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| 作者单位： | 1. 武汉大学资源与环境科学学院,湖北武汉,430079
2. 武汉大学资源与环境科学学院，湖北武汉430079; 长江大学地球科学学院，湖北荆州434023 |
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| 摘 要： | 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。
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| 关 键 词： | 制图综合 点群移位 比例射线 点群聚类 衰减 |
AnImproved Point Group Displacement Algorithm and its Application |
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| XIONG Zhi-yan,LIU Yuan-gang,GUO Qing-sheng,SUN Ya-geng.AnImproved Point Group Displacement Algorithm and its Application[J].Geomatics & Spatial Information Technology,2014(10):71-74. |
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| Authors: | XIONG Zhi-yan LIU Yuan-gang GUO Qing-sheng SUN Ya-geng |
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| Institution: | XIONG Zhi -yan, LIU Yuan - gang, GUO Qing - sheng , SUN Ya - geng( 1. School of Resource and Environment Science, Wuhan University, Wuhan 430079, China; 2. School of Geo - Science, Jingzhou 434023, China) |
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| Abstract: | Proportional radial displacement algorithm can maintain good spatial distribution patterns of the object cluster after displacement 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 effectiveness of the algorithm through the experiment. |
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| Keywords: | cartographic generalization point group displacement proportional radial point clustering attenuation |
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