| 基于网格密度的海量空间点聚合显示算法 |
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| 引用本文： | 刘果.基于网格密度的海量空间点聚合显示算法[J].测绘与空间地理信息,2015(4):174-176. |
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| 作者姓名： | 刘果 |
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| 作者单位： | 厦门精图信息技术股份有限公司,福建厦门,361008 |
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| 摘 要： | 在GIS系统应用中,经常遇到海量空间点数据的显示问题,若要显示全部空间点,采用传统的方法速度慢且压盖严重。近年出现的聚合显示技术,较好地解决了显示速度和可读性的问题,但这种聚合显示算法存在缺陷,不能很好地按分布的密度来进行聚合点的显示,并且在更海量的数据应用过程中,存在效率问题。本文提出了基于网格密度的海量空间点聚合显示算法,较好地解决了分布的问题,并提升了算法效率。
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| 关 键 词： | 海量数据 地图聚合 网格划分 电子地图 |
Hueg Amounts of Markers Display Algorithm Based on Grid-Density |
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| LIU Guo.Hueg Amounts of Markers Display Algorithm Based on Grid-Density[J].Geomatics & Spatial Information Technology,2015(4):174-176. |
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| Authors: | LIU Guo |
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| Abstract: | Absrta ct:In the GIS applications, display problems often encountered massive spatial point data, the traditional methods, to show all space points, slow and serious gland.In recent years, cluster display technology is a better solution at display speed and readability, but this cluster algorithm display defects, the density distribution is not good at aggregation point to be displayed and in a more massive data application, it is too slowly.This paper presents an algorithm based on grid-density to display the huge amounts of markers, to solve the problem of better distribution and enhance the efficiency of the algorithm. |
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| Keywords: | massive data cluster marker generation of mesh electronic map |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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