Using the circular arc Swedish method in tailing pond dam body stability analysis, the paper establishes the computationgeometry model, calculates the dam body safety coefficient.
运用圆弧条分法对尾矿库坝体稳定性进行了分析，建立了计算几何模型，计算出坝体安全性系数。
2
Since rules inferring is faster than geometrycomputation and requires little time, the rules are of help to improve efficiency of querying spatial data.
由于规则推理比几何计算速度快、内存消耗小，因此推理能够提高基于空间关系的空间数据查询的速度和效率。
3
Spatial databases are being applied widely in many applications such as GIS, CAD, Robot, Computation, Geometry, Computer Vision, Physic Image and Multimedia System etc.