Automatic vectorization of contour lines from scanned color topographic map based on spatial interpolation
基于空间插值彩色扫描地形图等高线的自动矢量化
This paper introduced the method of geometric constraint adjustment for objects in digital topographic map.
主要对数字化地形图对象进行几何约束平差。
The Method as well as Its Application to Build Digital Topographic Maps into Database Based on Geographic Feature Encoding
基于地理要素编码的数字地形图入库方法及应用
Different topographic types were arranged in order of the antnest density as follows hollow windward slope dune top leeward.
不同地形之间蚁穴密度分布为丘间地迎风坡丘顶背风坡
It indicates that the storm tide will still be the triggering force of seashore topographic profile evolutions in the future.
风暴潮仍是今后海滩地形剖面演变的触发动力。
The water levels and water volumes of the lake in different periods were calculated by using a digital elevation model created by the topographic map.
利用数字高程模型求取易贡湖各时相的水位与水量。
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