城市三维管网地理信息系统的设计与开发

数据层是系统的服务器端,采用Geodatabase一体化集成管理管网数据等所有系统数据.表现层与业务逻辑层是系统的客户端,基于ArcEngine的组件接口与界面控件开发,介绍了主要功能的关键技术实现及功能界面,实现了基本GIS功能、管网可视化功能、管网分析功能与三维地形分析功能,为管网自动化管理提供了新方法和新思路.     

基于MapX的阵列功能的设计与实现

首先讨论了在直角坐标系和地理坐标系下阵列功能的算法原理,详细介绍了基于Delphi和MapX的地理坐标系下阵列功能的设计和算法实现过程。此功能扩展了MapInfo的数字化功能,在一定程度上提高了数字化的效率和精度。     

基于ArcEngine的基础地理信息系统的设计与实现

介绍了利用ArcEngine技术开发基础GIS软件的特点,重点讨论了在GIS软件中查询功能、缓冲区功能和注记随地图缩放功能的实现.     

基于组件的武汉市交通GIS的研究与实现

从系统建设的目标和功能需求入手,阐述了系统的体系结构和软件结构,介绍了系统功能,并对系统中涉及的关键技术进行了总结,为系统的后续功能拓展和维护积累了经验。     

全国矿业权统一配号系统扩展建设与应用

文章在分析现有系统的基础上,提出了系统扩展建设的基本思路,论述了配号核心功能优化、业务数据修正功能、省级监管功能的设计与实现.系统扩展建设并应用后,在矿业权管理中起到了良好效果,提高了配号效率,增强了监管能力,提升了服务水平.     

基于ArcGIS Server水利信息管理与服务系统设计与实现

综合运用ArcGIS Server技术,网络服务技术等,实现水利方面的水资源管理、防汛抗旱、农田水利等功能。以鹤壁市水利空间信息管理与服务系统为例,详细介绍了系统的设计思想、系统结构与系统功能。     

青海湖候鸟迁徙系统的构建与应用

介绍青海湖候鸟迁徙系统的体系结构、主要功能等,以青海湖重要繁殖水鸟迁徙路线上重要停歇地的禽流感预警与风险评估为例介绍该系统的核心功能,并以代码展示了该功能的具体实现思路。     

大庆采油一厂GIS数据查询与维护模块的设计与实现

利用VB在GeoStar地理信息系统开发平台上进行二次开发,实现大庆油田采油一厂水泡子地理信息系统的3维数据查询与维护。介绍了系统的模块组成和功能,以及实现各项功能的关键技术。该系统灵活实用、功能较全,通过实际生产应用,反映出在地面水域地理信息数据计算与管理、直观显示等方面具有很好的实用价值。     

城市公交换乘功能的设计与实现

结合实际情况,充分利用公共服务平台免费资源(百度API),探索了一套快速、便捷、低成本实现公交换乘功能的技术路线,并以兰州市为例,实现了公交换乘功能。     

基于CGAL的三维空间布尔运算功能分析与设计

三维空间对象的布尔运算功能是3D CAD、3D GIS和其他三维建模分析软件的核心,开发出正确、稳定、高效的三维空间布尔运算功能是一项复杂且极具挑战的工作。本文借鉴计算几何领域的研究成果,以CGAL库中Polyhedra模块为基础,进行三维空间布尔运算功能的整体设计,分析CGAL在多面体布尔运算方面存在的约束和局限等问题,并给出了相关判断规则,为三维空间布尔运算功能开发提供了参考。     

北京市规划道路管理查询系统的设计与实现

应用GIS技术,在ArcInfo8.1和ArcView3.2软件的基础上,设计研发了"北京市规划道路管理查询系统",实现了图形数据与属性数据的一体化编辑,维护了规划道路图形与属性数据的一致性,解决了系统查询与更新的并发操作问题,实现了不连续道路交叉点的图形及属性输出,成果输出变得非常灵活方便。     

一种新型自动整平对中仪器支架的设计与实现

利用机电一体化技术设计了一种新型的能自动整平对中的仪器支架,采用普通水准器和光电元件检测支架的水平性,由测绘员目测垂球对中偏差值并输入控制系统,通过小直流伺服电机自动调节支架的水平位置和支承点高度,构成了一个仪器支架水平性和对中性的闭环控制系统,实现了仪器支架的自动整平和半自动对中。     

分布式海量多源空间数据的组织与网络可视化

分析了实现分布式数字地球系统的关键技术,提出了其架构和一种适用于空间数据的全球四叉树金字塔的分层分块方案,实现了基于Direct3D的分布式数字地球原型系统GeoGlobe。     

GRAPHIC MEDIA AND GEOICONOGRAPHY

A prominent Russian cartographer advances earlier work on the theory of geoimagery by outlining a system of graphic media for the visualization and modeling of all geographic images—fixed, software-based, and mental/ideational. A discussion of trends in the development of these media is followed by a proposal for the classification of the diverse (metric) disciplines that are evolving to measure the totality of information conveyed through these media. These disciplines are organized in a system of geoiconometry under the rubrics of geoplanimetry, geostereometry, and geochronometry. Translated by Larry Richardson, Glendale, CA 91202 from: Geografiya i prirodnyye resursy, No. 1, 1994, pp. 37-43.     

掌上型导游器的实现

介绍了基于地理信息系统、全球定位系统和无线上网技术的移动定位信息浏览器——掌上型自主导游器，给出了在Palm OS上的总体结构和软件设计方案，描述了特定的地理信息系统及其人机界面。     

GLONASS的现状与发展

本文在扼要叙述GLONASS发展状况的基础上,分析比较了GLONASS与GPS各自的优缺点,给出了两个系统的坐标及时间的转换关系。最后列出了目前GLONASS接收机的生产厂商状况,仅供读者参考。     

ARCHITECTURE AND COMPONENTS OF PHOTOGRAMMETRIC WORKSTATIONS

Several generations of photogrammetric workstations have followed one another since the analytical plotter was developed at the beginning of the 1960s. The outcome of this evolution, resulting from important developments in mini- and microcomputers, is illustrated today by more and more powerful photogrammetric workstations based on distributed processing architecture. This paper introduces present day architectures, as well as hardware and software aspects of the various components of these systems including graphics workstation, real time processor, superimposition system, correlation system and special input/output devices. Finally, an attempt is made to outline the prospects for further evolution.     

TERRAIN AND SURFACE MODELLING SYSTEMS: THEORY AND PRACTICE

This paper presents a critical investigation of those parts of digital mapping that relate to the specific area of terrain modelling systems. In addition, image processing and database systems are considered where they impinge on model creation or later analysis. The theoretical basis for surface mapping systems is described and an attempt is made to determine how best such systems can cover many of the practical requirements of commercial, industrial, and institutional surveyors and researchers. Some proprietary computer terrain modelling systems are mentioned where they have particular features that relate to the theme of the paper. However, most of the examples are derived from Panacea, the terrain modelling software written by the author, although in many cases any major modelling system could have been used.     

土地勘测定界系统的设计与应用

介绍了土地勘测定界系统的功能设计,阐述了成果制作过程,实现了与建设用地报批、土地变更、土地市场交易等的无缝衔接。     

PHOTOGRAMMETRIC DIGITISING AND EDITING UNDER COMPUTER CONTROL

Digitising from a photogrammetric instrument can be controlled by a unit specially designed for this purpose, or by a digital control computer. In the latter case, the digitising system is more flexible since alterations and additions to the real-time programs can easily be made to effect different digitising applications. The control computer can also be used in processing the digitised data. The use of such digital control in photogrammetry is as yet limited. The reasons are examined. The characteristics and real-time requirements of a computer controlled digitising system are stated. Different digitising and recording modes, identification numbers and editing arrangements are then given to illustrate the flexibility and limitations of such a system.