地形数据库 meaning in English
topographic database
topographicdatabase
Examples
- Technical rules for data interface between topographic database and geographic name database
地形数据库与地名数据库接口技术规程 - Just like spectrum can discern the object and their property detected , the slope spectrum can distinguish the types and their geomorphologic characteristics of the research area effectively , too ; especially the spatial distribution of the slope spectrum , as well as their inherent law of the terrain complexity and th e development of geomorphology can also be dig out . in the second , taken the loess plateau of north shaanxi province as the research area , this dissertation investigated the composing , types and the extraction method of the slope spectrum , analyzed the main influencing factors of extraction of the slope spectrum and the existing condition of the slope spectrum , as well as ascertained the critical area at which the slope spectrum can exist stably . the author paid more attention to investigate the spatial distribution of the slope spectrum in the loess plateau
其次，本文以陕北黄土高原为研究区，探讨了坡谱的组成、类型与提取方法；分析了影响坡谱存在与提取的主要因素，并对地面坡谱的存在条件进行了实验与探讨，确定了陕北黄土高原地区地面坡谱稳定存在的临界面积值；对陕北黄土高原地区地面坡谱的空间分异性特征进行分析，获取了研究区坡谱的南北空间分异性规律；建立了我国地形数据库(数字高程模型)在不同空间尺度(比例尺、分辨率、地域尺度)条件下的地面坡谱转换关系，从而获取了不同空间尺度地面坡谱的转换图谱模型，实现了利用高精度的大比例尺dem数据对中小比例尺dem数据的精度纠正，为各类dem数据适用性与应用精度的科学估算及有关标准的制定提供科学了依据。 - This paper analyzes the transport network elements in topography databases and presents an automatic drawing method for transport network elements based on composing graphical elements and setting graphical elements ' drawing order , which can provide an optional approach for transport network elements ' automatic drawing
摘要分析了地形数据库中交通网要素数据，提出了一种基于图元组合并设置图元绘制顺序的交通网要素自动绘制方法，为解决交通网要素的自动绘制提供了一种可选途径。