基于MapObjects的矿井突水评估系统的开发与应用

本文针对矿井水文地质的实际情况,以组件式地理信息系统软件MapObjects2.4和面向对象的可视化编程工具Visual Basic 6.0构架的技术体系为基础,开发了一套方便、实用的矿井突水风险评估系统,实现了整个矿井水文地质数据(包括图形数据和属性数据)的存储、浏览和空间分析等功能,并在此基础上结合模糊综合评判等数学模型对矿井突水进行了评价预测和专题图制作。     

基于MapX控件开发城市资源管理GIS

分析了MapX插件的特点,给出了利用MapX构建行业应用地理信息系统的各种方法。详细介绍了图层操作、信息查询、专题分析等功能的实现。     

VB与VC＋＋环境下基于MapX的二次开发比较

VB、VC是基于MapX常用的GIS二次开发环境,本文以添加地图对象、加载数据集、创建标准工具栏和数据绑定等为例,比较分析了VB、VC环境下利用MapX开发的不同,得出了VC更注重程序的效率,而VB更强调易用性的概括性结论,为MapX开发平台的选择提供了有效的帮助。     

基于MapX组件技术开发多媒体电子地图的应用研究

本文提出了MapX组件开发多媒体电子地图，以VB、MapX和其它应用软件进行了旅游多媒体电子地图的设计和开发。     

基于MapX的小灵通基站管理系统

MapX组件是近年来GIS软件发展的趋势之一,标准的包装技术使GIS应用可以利用MapX组件快速地组装。小灵通基站管理系统即采用MapX技术、空间数据引擎技术、面向对象的系统分析和设计方法等技术,实现了对小灵通基站网络资源的有效管理,以及运营状况的动态监测和话务数据分析,达到了网络优化的目的和任务。     

基于MapX的车辆运输监控系统的设计与实现

文章简述了MapX的特点及在车辆运输监控系统中利用MapX实现图层的控制和轨迹回放等功能。     

基于MapX的多比例尺地图数据无缝显示

MapX是MapInfo公司推出的一个快速、易用的开发GIS系统的ActivX控件.多比例尺地图数据无缝显示是GIS系统的必备功能.在分析MapX在多比例尺地图显示方面的不足的基础上,提出一种基于MapX建立虚拟工作区的方法,用以对多比例尺地图数据进行管理和无缝显示,并给出了在VC 中的具体实现方法.     

浅谈基于MapX的地图制图

MapInfo MapX是一个用来做地图化工作的OCX控件,它提供了一个最简单和最节约成本的方法,用来将地图化功能嵌入到新的和现有的应用中.MapX支持Windows环境下绝大多数标准的可视化开发环境,可以被快速集成到使用Visual Basic,Power-Builder,Delphi,Visual C++或其他面向对象的语言的客户端应用程序以及Lotus Script的Lotus Notes(v4.5)中.本论文介绍了利用快速开发工具MapX并结合Visual Basic应用程序来实现基于MapX的地图制图和空间分析,利用计算机对信息的快速处理,为使用者提供了一些必要的、有价值的参考,通过本软件可以使开发人员在他们熟悉的环境中更好地通过应用程序来访问地图数据. ws环境下绝大多数标准的可视化开发环境,可以被快速集成到使用Visual Basic,Power-Builder,Delphi,Visual C++或其他面向对象的语言的客户端应用程序以及Lotus Script的lotus Notes(v4.5)中.本论文介绍了利用快速开发工具MapX并结合Visual Basic应用程序来实现基于MapX的地图 图和空间分析,利用计算机对信息的快速处理,为使用者提供了一些必     

基于Vega的三维虚拟城市地理信息系统的实现

Vega在三维虚拟模拟建模中应用广泛、功能强大稳定,但对于各种地理信息管理查询等功能薄弱;MapX在地理信息系统开发中得到了广泛的应用,它具有地图数据逻辑查询等强大的地理信息功能。在对Vega、MapX、Aecess数据库三者数据的连接关系、图层控制、逻辑查询、路径导航等核心部分阐述基础上,利用Vega三维仿真软件,结合地理信息系统开发组件MapX和管理附属信息的数据库,在VC“平台下构建了虚拟三维地理信息系统,有效地解决了独立的二维电子地图和独立的三维虚拟场景的各自不足之处。     

MapX与PowerBuilder集成技术在交通事故信息系统中的应用

针对复杂的道路交通事故信息,利用MapInfo公司的组件式控件MapX5.0,在PowerBuilder8.0开发环境下,使用SQLServer2005作为系统后台属性数据库,研究路段采用高分辨率的遥感数据为地图背景,设计开发了城市道路交通事故信息系统。该系统具有城市道路交通信息与道路交通事故信息的查询、分析和统计功能,使道路交通事故信息查询更迅速、直观。实际开发表明,PowerBuilder与地图控件MapX结合开发GIS应用系统,不仅开发过程简单、开发速度快,而且能充分发挥PowerBuilder快速高效管理、访问MapX空间数据库的优势。     

水文地质空间信息系统的设计与实现

系统地分析了以GIS技术为支撑、水文地质空间数据库为基础、水文地质空间分析为核心的水文地质空间信息系统的开发原则与方法、结构与功能需求,及其实现与应用.     

Hydrogeology of Talwandi Sabo Tehsil,Bathinda District (Punjab): A remote sensing approach

Studies on water resources and hydrogeology of an area have become much easier with the help of Remote Sensing Technology. As an attempt to evaluate hydrogeology and ground water conditions of the tehsil Talwandi Sabo, Bathinda district, a hydromorphogeological map of the area was prepared through visual interpretation of satellite imagery. The study shows that the study area, a part of the Indo-Gangetic alluvial plain, is occupied by a large number of sand-dune complexes deposited by the ancient Satluj River while traversing the area during the past. Later on reworking of sand-dunes by aeolian action and their physical removal for agricultural purposes resulted in the present landscape of a plain land with sanddune complexes. Unconsolidated Quaternary alluvial sediments consisting of fine to medium-grained sand with admixture of kankar and some clay constitute the aquifer system of the area. Studies show that ground water occurs under both confined and unconfined conditions with water table at shallow depths. But the quality of the ground water is poor to marginal in most of the area except in the vicinity of main canal (Kotla Branch) where water seepage from canals has made the ground water good in quality.     

通用钻孔柱状图模型研究

本文针对当前钻孔柱状图在通用性与扩展性等方面存在的问题,将多个行业的钻孔柱状图进行抽象,设计出通用的钻孔数据模型与界面样式模型,并在此基础上利用插件架构实现了钻孔列元素的动态扩展。应用实例表明,基于该模型的钻孔柱状图可进行界面与数据的灵活配置,能应用于工程地质、水文地质,第四纪地质等多个行业。     

地下空间数据挖掘与虚拟现实

目前,地理信息系统处理空间数据多停留在点、线、面三类二维的地表数据,对离散或连续的真三维数据进行处理尚处于初步研究阶段。本文基于ArcGIS9.2版本中新开发的Extrude Between模块的拉伸封闭多边形面功能,以某校区地下87个离散钻孔数据为例,进行三维虚拟实现:首先,进行空间数据的挖掘,即对87个钻孔数据通过预处理,进行对具有特异值的各个钻孔数据层空间内插,生成具有深度属性的各层等高线,最终生成模拟各地层上表面形态的TIN;然后,虚拟实现真三维数据的可视化及体视化,达到对地下实体空间进行逼真模拟,反映该校区地形、地貌、地层分布以及水文地质特征。     

深基坑变形监测方案设计与数据分析

黄河冲积平原地区水文地质复杂,基坑支护结构及监测技术方案设计是基坑工程的重要内容。本文以济南市武岳庙历史建筑保护工程基坑项目为例,研究了特殊水文地质条件下大型基坑支护结构设计及监测方案设计,并对基坑本身及周边环境进行实时监测。通过对监测数据的分析,得出了基坑本身及周边环境的沉降位移变化规律,验证了基坑支护结构设计的合理性和可靠性,对本地区的相似工程提供有益参考。     

遥感技术促进着我国地质矿产调查的发展

回顾30年来中国开展航空地质调查和遥感技术的发展历史和科技现状。叙述了开展遥感地质调查的主要成就和进展,包括充实提高了地质理论研究,加速了区域地质调查进度,促进了矿产普查,扩展了地质资源远景,改进了水文地质、工程地质、环境地质、城市地质和灾害地质勘测工作,使遥感地质应用的理论、方法和技术有了明显的发展。根据遥感技术与地质学理论的发展趋势,对遥感地质的发展提出了新的要求,跟踪遥感技术的最新发展、更新地质理论,进一步发挥遥感技术的潜力,争取在地质理论研究、矿产资源发现、环境地质应用等方面作出更广泛的贡献。     

Identification of Water Conservation Sites in a Watershed (WRJ-2) of Nagpur District, Maharashtra using Geographical Information System (GIS) Technique

The paper deals with the application of Remote Sensing and Geographical Information System (GIS) technique for a watershed development program. For this study, the WRJ-2 watershed falling under Narkhed and Katol Tahsils of Nagpur district, Maharashtra, India is investigated. Various thematic maps (i.e. drainage, geology, soil, geomorphology and land use/ land cover) have been prepared using the remote sensing and GIS techniques. Initially, differential weightage values are assigned to all the thematic maps as per their runoff characteristics. Subsequently, the maps are integrated in GIS environment to identify potential sites for water conservation measures like gully plugs, earthen check dams, continuous contour trenches, percolation tanks, cement bandhara, afforestration and farm ponds, etc. The study depicts that the GIS technique facilitates integration of thematic maps and thereby helps in an identification of micro-zones each with unique characters in-terms of hydrogeology, thus amenable to specific water conservation techniques. It is therefore concluded that, the GIS technique is suitable for an identification of water conservation structures.     

Predicting salinity impacts of land-use change: Groundwater modelling with airborne electromagnetics and field data,SE Queensland,Australia

Throughout Australia, there is concern that land use change is mobilizing salt stored in the landscape, causing salinity in soil and water resources. Salt in the landscape becomes a salinity risk only if it is mobilized by groundwater movement. A combination of modelled groundwater behaviour under various land uses with three-dimensional salt-load maps developed from airborne electromagnetic survey (AEM) provides a practical tool to assess potential salt movement.AEM survey of the country around St. George, SE Queensland, revealed a potential salinity threat: significant salt stores in the uplands adjacent to flood plains which support important irrigation developments and which drain to the Darling River system. A conceptual model of the regional hydrogeology was built upon three-dimensional AEM data, an investigation-drilling program, and direct field measurement of hydraulic conductivities. This information was incorporated in a Flowtube groundwater model and groundwater responses to five different land management options were tested over a 100-year period. Surface water storage on relatively permeable soils and continuous irrigated cotton both resulted in water tables reaching the soil surface; rain-fed wheat and pasture both resulted in a raised watertable, but both established a new equilibrium without the water table reaching the ground surface.     

联合InSAR技术和地质数据反演普宁城区的地表沉降特征

地表沉降是全球性的地质灾害之一,地表的迅速沉降会导致地表塌陷,从而破坏地下管道及地表建筑,最后造成巨大的经济损失甚至人员伤亡。我国地下工程及地表建筑扩建规模较大,这种地质灾害问题尤为突出。目前,监测地表形变的方法有很多,如水准测量、GPS、InSAR技术等。但通常情况下这些技术只能对地表的高程变化进行定量分析,而无法寻找灾害发生的诱因,缺少对地表沉降时空特征的定性分析。本文以广东普宁地区为例,将InSAR技术与该地区的水文地质特征相结合,从而实现对地表沉降监测从数据采集、处理到成因分析的整个流程的把控。InSAR技术可以验证地质特征的合理性,而地质特征又可以对监测范围及监测周期进行更科学的指导。本文通过这种分析方法,既调查出普宁城区的沉降区域,又对其背后成因进行了系统性的分析,为后续的防治措施及国土空间规划提供了更科学的指导。     

Use of Remote Sensing and Geographical Information System in the delineation and characterization of ground water prospect zones

The present study was carried out to delineate and characterize ground water prospect zones using IRS-ID LISS-III geocoded data on 1:50,000 scale. The information on lithology, structure, geomorphology and hydrology were generated and integrated to prepare ground water prospect map for a region in western Rajasthan. The information on nature and type of aquifer, type of wells, depth range, yield range, success rate and sustainability were supplemented to form a good database for identification of favourable zone. Geographical Information system (GIS) was used to prepare database on the above layers, analysis of relationship and integrated map preparation. The study area has a complex geomorphology. The geology is dominated by rocks of post Delhi Intrusive and Quaternary sediments. On the basis of hydrogeology and geomorphic characteristics, four categories of ground water prospect zones: high, moderate, low and very low ere delineated. The high prospect zones are alluvial plains and valley fills mainly influenced by quaternary formations with yield expectation between 100-200 lpm. The moderate zone has pediment surfaces covered by shallow soil cover in addition to weathered and fractured aquifer material with expected yield of water between 50-100 lpm. The low potential zones mainly comprise inselbergs and rocky surface with expected discharge below 50 lpm. The very low prospect zones act as run-off generating zones.