Selection of map symbols is very important in visualization of spatial data.
地图符号的选择在空间信息可视化中至关重要。
Research and design the organization of multi-representation spatial database, adaptive visualization of spatial data, and realize a prototype system.
研究并设计多重表达空间数据库的组织方式和空间数据的自适应可视化，并实现一个原型系统。
Visualization of spatial data is one of research emphases in 3dgis.
空间数据可视化是当前3dgis领域的研究热点之一。
Visualization of spatial data is one of research emphases in 3dgis.
空间数据可视化是当前3dgis领域的研究热点之一。
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