terrain n. 1.地面;地带;地区。 2.(知识的)领域范围。 3.【军事】地形,地势。 4.【地质学;地理学】岩层,岩群;地质建造。 a difficult terrain for a counterattack 不利于反攻的地形。 the whole terrain of home economics 家政学的整个领域。
A review on the scale issue in dems and digital terrain analysis 及数字地形分析中尺度问题研究综述
According to the structure of the model , this text deeply researches the topologic analysis arithmetic so that the model can be applied in the domain of terrain analysis 根据该模型的结构,本文深入研究了在此模型上进行拓扑分析的算法,使之在地形分析中得以应用。
Contraposing the requirements for special analysis , after researching the storage , division and organization of data , the method of data management in a terrain analysis system reiving on cloud data is put forward 针对特定的分析要求,模型从数据的存储方式、分幅方法和组织方式入手,提出了基于海量数据的地形分析系统中数据的管理办法。
3d terrain with air photos and dem / dtm data is made by the system . virtual reality technology of 3d terrain is researched in detail . algorithms ^ programs and results of terrain analysis are provided 本课题利用航摄影像和dem dtm数据生成三维地形,使用opengl的实现方法,对三维地形的虚拟现实技术进行了详细的研究,并且给出了地形分析的算法、程序实现及分析结果。
Digital elevation model ( dem ) is widely known as the kernel of national foundation geographical information database , as well as the basis of digital terrain analysis in gis for it contains plentiful topographical , geomorphology and correlative geographical information and acknowledge Dem是国家基础地理信息数据库的核心内容,是gis数字地形分析的数据基础,包含着丰富的地形、地貌及相关的地学信息与知识。
For the issuance of data , using the technology of web service , this text put forward the method and detail of foreshore terrain analysis system architecture in the network environment on the platform of microsoft . net in order that the system can supply the service through the network 为便于数据的发布,本文又利用webservice技术,以微软. net为开发平台,提出了网络环境中滩涂地形分析系统的架构方法和细节,使系统可以通过网络提供服务。
Meanwhile , we built models of data collection , soeciai point ' s altitude handling , grid point ' s altitude handling , designed a method which can rapidly collect and process terrain data by descripting the contour line with mouse , and designed corresponding software by c + + builder5 . 0 . therefore , military digital maps can be facilitly and quickly made and computer - aided terrain analysis can be realized , thus the system can effectively help the commanders or staffs make their decision 同时建立了数据采集、特殊点高程处理、网络交点高程处理等模型,设计了一种可通过鼠标器描绘等高线而实现地形数据的快速采集、处理和赋值的方法,运用c + + builder5 . 0设计了相应的软件,能够方便、快捷地生成数字化军用地图并进行计算机辅助分析地形,从而能够有效地帮助指挥员或者参谋人员进行决策。
Which more , the debris flow hazard information system is set up by visual basic and maplnfo tools , which realizes the debris flow hazard ' s management , query , statistical analysis , etc . lastly , the correlated data selected from the system to realize auto - forecast for the debris flow hazard ( e . g . risk analysis ) , and discuss spatial analysis for the debris flow hazard , which includes terrain analysis , overlay analysis , buffer analysis to uncover shaping rules of the debris flow hazard 最后,探讨了泥石流灾害信息系统应用分析模块,通过实例对部分应用模块进行了深入研究,如泥石流预测预报的危险度评价分析以及空间分析,其中包括对空间分析中的地形分析、叠加分析和缓冲区分析进行了较全面地探讨,论证了泥石流灾害的部分形成机理。
Basing on the foreshore digital terrain model and with the help of gis platform , the function of spatial information management and foreshore terrain analysis is integrated in the system , and coupling query and sql query are realized in it , too . the system has been used for several layout projects , and the effect has benn proved good 以滩涂数字地形模型为基础,借助于地理信息系统平台,系统集空间信息管理和滩涂地形分析功能于一体,实现了多种数据的耦合查询、条件查询等,并且参与了相关项目的规划工作,实践证明效果良好。
In this paper , we studied the distributing appearance and combinating regulation of terrain elements , analysized the basic operational functions of terrain , bringed up the basic principles of terrain analysis , and described the main content , method ind step of terrain studying and terrain analysizing with digital map , therefore , we have discovered the substance and basic regulation of terrain studying and analysizing 本文研究了地形要素的分布形态与组合规律,分析了地形的基本作战性能,提出了地形分析的基本原则,阐述了研究地形和利用数字化地图分析地形的主要内容、方法和步骤,在一定程度上揭示了研究与分析地形的实质和基本规律。