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2.DESIGN OF WEB-BASED RELIEF MAP DISPLAYING SYSTEM
基于Web的地形图显示系统的设计收藏指正
3.Digital Orthphoto Map(DOM) is a collection of digital orthphoto data of scanned digitalizational aerial images or secondary planet images data from high altitude,of which reflection errors are rectified and enchased pixel by pixel by Digital Elevation Model(DEM),and which are cut on national basic map scale and relief map range.
数字正射影像图DOM是利用数字高程模型(DEM)对经扫描处理的数字化航空像片或高空采集的卫星影像数据,逐像元进行投影差改正、镶嵌,按国家基本比例尺地形图图幅范围剪裁生成的数字正射影像数据集。收藏指正
4.Some discussions about error correcting during computer aided compiling thematic maps of small-scale ──As a example, the relief map of Asia at scale of 1: 8, 000, 000
小比例尺专题地图计算机编制过程中的误差校正讨论──以1:800万亚洲地貌图编制为例收藏指正
5.By adopting the ground slope drawing from high accuracy digital elevation model (DEM) based on 1∶10 000 relief map with 5 m spatial resolution as criterion, and by using ground instrumentation and mathematical statistics and comparative analysis as methods, a study is made on the error character and correction method of the ground slope drawing from DEM based on 1∶50 000 relief map with 25 m spatial resolution.
试验以 1∶1 0 0 0 0高精度地形图的 5m空间分辨率DEM(数字高程模型 )所提取的地面坡度为准值 ,运用GIS、数理统计和比较分析等方法 ,研究基于 1∶5 0 0 0 0地形图的 2 5m空间分辨率DEM所提取地面坡度的误差特征与纠正方法 .收藏指正
6.As a Digital relief map, Digital elevation model (DEM), which contains various information of terrain structure and character, is the foundation data for quantitatively describing many spatial variations such as landform structure, hydrologic process and biological distribution et al.
数字高程模型(DEM)蕴含着大量的、各种各样的地形结构和特征信息，是定量描述地貌结构、水文过程、生物分布等空间变化的基础数据，是地形信息获取的数据源。收藏指正
7.There are several situations where the registration of DLG and DOM is wanted: DLG precision check, a combination of DLG and DOM for field mapping, congruence of DLG and DOM to obtain multiplex relief map.
在很多情况下,需要用DOM和DLG的叠加配准:检查DLG精度,DOM套合DLG进行外业调绘,DLG与DOM叠加生成复合地形图。收藏指正
8.Moreover,we introduce the ants system in bionics into grading MAS system ,try to study the abstract model of individual ant,the collective and the task and plot out the relief map and the process of solving the problem.
利用仿生学的相关成果，把蚁群系统引入到等级MAS系统中，研究蚁群中单个蚂蚁、蚁群、任务的抽象模型，形式化描述蚁群的地形图和任务求解的过程。收藏指正
9.Taking Nanxiaohegou watershed in Gansu Province, which is in the gully region of Loess Plateau as an example, and 1∶10 000 relief map as an data source, the method of high accuracy DEMs and extract soil erosion index of watershed are discussed.
以黄土高原沟壑区的南小河沟流域为例,以1∶1万地形图为数据源,探讨了在Arcgis和ArcView地理信息平台下,生成高精度DEM及提取流域土壤侵蚀指标的步骤和方法。收藏指正
10.Differing in the method of the Trim in AutoCAD,on the base of researching the method of rate of slope,a basic idea of the method of vertical line is proposed,which can trim a lot of linear drawings and divide the relief map exactly and availably.
区分于AutoCAD中的Trim方法 ,在研究斜率法的基础上 ,提出了一种可对大量线性图元进行修剪的垂线法的基本思想 ,并对地形图进行了准确有效的分割收藏指正
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