交通、气象等领域通过收集物体的空间位置信息(地理空间数据)来分析其潜在的运动规律.可视分析因其直观的可视化表达与便捷的交互方式,能有效地分析地理空间数据.过滤作为一种重要的数据操作,被广泛地应用于大规模地理空间数据的可视分析中.文中概述了地理空间数据可视化中的过滤方法及相关工作.%Tagged with spatial positions, geospatial data is collected in many research fields, such as transporta-tion, meteorology etc. Visualization facilitates the understanding and analysis of those geospatial data. To deal with the large scale geospatial data, filter is widely incorporated in the visual analysis process. In this paper, we summarize the filter in geospatial visualizations and the related work.
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