The triangulation of constrained data set is widely used in Geographic Information System (GIS), geo-science, computational geometry, multi-resolution and high precision DTM, et al.
顾及地形特征线的散点域(约束数据域)三角剖分是建立高精度数字地面模型的基础，在GIS、地学分析、计算几何、多分辨率DTM等领域中有着广泛的应用。
This system not only has conventional Web GIS functions, but plays an important role in tour-route-decision making, tour guiding, virtual reality in traveling and geo-science popularization.
该系统采用开放式的设计模式，实现了旅游信息GIS查询、旅游路线生成、模拟旅游和公众地质科普教育等功能。
The concept of geo-system reflects the progress of modern science and technology and the needs of society.
地理系统的概念反映当代科学技术进步和社会需求；
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