In view of the situation that there are errors in navigation data and digital terrain data, the robustness of reference path is ensured according to choice the cell width of search space properly.
针对导航系统精度和数字地图存在误差的情况，通过适当划分搜索空间网格保证了航迹的鲁棒性。
As the data base of the GIS digital terrain analysis, digital Elevation Model (DEM) contains rich of terrain, topography and related geo-information and knowledge.
数字地形模型(DEM)包含着丰富的地形、地貌及相关的地学信息与知识，是GIS数字地形分析的数据基础。
Generation of triangular meshes for digital terrain model is studied, the triangulation algorithm of discrete points and edges and its data structure are presented.
对构筑三角形网格建立数字地形模型进行了研究，给出了基于散乱点和边建立三角形网格地形模型的生成算法和数据结构。
Digital Terrain Model is a general designation of space topographical data set, and it is the digital description with the figure of space position and topographical attributive character.
数字地形模型是空间地形数据集合的统称，是具有空间位置特征和地形属性特征的数字描述。
The algorithm can be directly applied to data mining, digital grid partitioning and estimation, data partitioning, digital terrain surface simplification, etc.
实现的算法可以直接应用于数据挖掘、数字网格划分与评估、数据分割、数值地形曲面的简化等问题。
Walkthrough in massive terrain and image data is a key technology and a difficult problem of GIS, VR and Digital Earth, etc.
海量地形影像数据的快速浏览是GIS、虚拟现实、数字地球等领域应用的关键技术与难点之一。
A method is presented to implement real-time 3d road animation coupled with road design data and digital terrain model (DTM).
研究了一种用数字地面模型和公路设计数据实现实时三维动画的方法。
Digital elevation and terrain maps based on the new data reveal the heavily cratered and bumpy surface of the moon in all its complexity.
通过照片我们可以清晰的看到月球背部地形复杂、表面崎岖。
Analyzing the storage format of DMA DTED and USGS DEM and then presenting a new digital terrain elevation data storage format. The storing and reading algorithm are also realized.
分析了DMA的DTED和USGS的DEM高程数据存储格式，比较了其异同，提出了一种高效的数字地图高程数据的存储格式并实现了存取算法。
Digital Elevation Model(DEM) is a digital modeling process which aims at terrain and physiognomy. Irregular triangulation TIN is the best model when DEM data are stored and expressed.
数字地形模型是针对地形地貌的一种数字建模，这种建模的结果通常就是一个数字高程模型（DEM）。
Digital Elevation Model(DEM) is a digital modeling process which aims at terrain and physiognomy. Irregular triangulation TIN is the best model when DEM data are stored and expressed.
数字地形模型是针对地形地貌的一种数字建模，这种建模的结果通常就是一个数字高程模型（DEM）。
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