Spatial practices and imaginaries: Experiences of colonial officers and development professionals     

Uma Kothari 《Singapore journal of tropical geography》2006,27(3):235-253

This paper explores the spatiality of colonial and postcolonial power and discourse as produced, performed and imagined by former British colonial service officers and contemporary UK international development professionals. It focuses on two key aspects of spatial practices. The first addresses the spaces inhabited by these colonial officers and development professionals overseas and how their locatedness, embedded or enclavic, shapes relationships to others. The second explores this distinctive social and spatial distancing through their relationship to, and imagined geographies of, home and away and how these are embodied in their institutional and cultural capital. The paper examines the regularities and consistencies that stand out from numerous individual practices through which both former colonial officers and development professionals negotiate the situations in which they live and work. It also specifies how authoritative management, privilege and distance informs their spatial practices despite changing global contexts and a more diverse composition of those who articulate contemporary relationships between 'first' and 'third' worlds. Finally, the paper suggests that the cultures which travelled over colonial space through being performed by colonial officers have been reworked throughout the postcolonial period, belying epochal historical periodizations that conjure up a clear disjuncture between colonial and development eras.  相似文献   

基于Intergraph GIS的基础空间数据库一体化建设研究   总被引：2，自引：1，他引：2  

朱明祖 《测绘信息与工程》2005,30(2):30-32

阐述了基于Intergraph GIS的城市基础空间数据的结构和建库的内容,提出了一体化的建库、质量控制、空间数据动态更新以及基于版本信息的历史数据存储与恢复的方法,介绍了一体化建库实例。  相似文献   

基于GIS的供电台区经营综合评价     

王玲  边馥苓 《测绘信息与工程》2005,30(6):32-33

探讨了运用GIS技术对供电台区经营综合评价的实现方法,选取了业务属性和空间属性两个方面评价因子,介绍了从系统软硬件、评价实现过程及显示结果等方面评价过程的具体技术实现。  相似文献   

基于虚拟SAN的网格GIS数据存储技术研究     

高劲松  张文  关泽群  邓世军 《武汉大学学报(信息科学版)》2005,30(3):214-217

针对空间数据存储的特点，结合网格和虚拟SAN技术的优势，提出了基于虚拟SAN的网格GIS数据存储解决方案．旨在解决网格GIS环境下的数据存储问题。  相似文献   

基于本体与LDAP的空间信息网格资源管理机制   总被引：7，自引：0，他引：7  

崔巍  李德仁 《武汉大学学报(信息科学版)》2005,30(6):549-552

为了在网格计算中满足空间信息系统在语义方面的特殊要求，克服传统网格研究的数据格式很少涉及信息资源的语义内容的缺陷，把本体和轻量目录访问协议结合到一起，建立了基于语义的空间信息网格资源管理系统，使多源异构的地理信息系统组成了一个虚拟统一的逻辑组织，有效地实现了基于语义的空间信息系统集成和互操作。  相似文献   

Practical Research of IKONOS-2 Geopositioning and Its Accuracy in Tibet of China     

CHENChujiang LIDeren ZHUQing 《地球空间信息科学学报》2005,8(1):33-38

This paper presents the studies of the refining of IKONOS-2 RPC, the transform of the datum, the mode of the control point distribution and the method of IKONOS stereo triangulation, so that IKONOS imagery can be used to collect the precise geospatial data and produce the large scale map. The transform between the IKONOS-2 image space and the national coordinate system based on the RPC have been developed, and the results of block adjustment with various control schemes in a practical project near Himalayas have been examined and analysed. The encouraging results of high positioning accuracy have been obtained.  相似文献   

Relationship of Uncertainty and Line Segment for Between Polygon Segment Spatial Data in GIS     

LIU Chun TONG Xiaohua 《地球空间信息科学学报》2005,8(3):183-188

The mathematic theory for uncertainty model of line segment are summed up to achieve a general conception, and the line error hand model of εσ is a basic uncertainty model that can depict the line accuracy and quality efficiently while the model of εm and error entropy can be regarded as the supplement of it. The error band model will reflect and describe the influence of line uncertainty on polygon uncertainty. Therefore, the statistical characteristic of the line error is studied deeply by analyzing the probability that the line error falls into a certain range. Moreover, the theory accordance is achieved in the selecting the error buffer for line feature and the error indicator. The relationship of the accuracy of area for a polygon with the error loop for a polygon boundary is deduced and computed.  相似文献   

1∶5万地图数据库的计算机综合缩编   总被引：1，自引：0，他引：1  

艾廷华  郭宝辰  黄亚峰 《武汉大学学报(信息科学版)》2005,(4)

针对国家空间数据基础设施建设的需求,讨论了实用化地图综合软件的开发与应用,从软件开发角度讨论了地图综合系统功能的层次化划分及在软件中的圈层式结构组织,地图综合操作环境的建立,综合规则的形式化表达,综合算子的设计与软件实现。结合1∶1万到1∶5万数字地图综合及更新的应用实例,提出了多尺度空间数据库建立的技术路线。  相似文献   

基于GIS技术的综合水文物探数据库系统研究     

何昭友  刘树才  邰伟鹏 《物探化探计算技术》2005,27(4):327-330

利用GIS的强大空间数据架构功能，将各类水文物探数据与空间数据相关联，建立了基于GIS技术的综合水文物探系统。水文物探数据量大，而且复杂多变，本系统利用新兴的GIS技术和数据库功能对水文物探属性数据与空间数据进行有效的整合，高效地管理空间与属性数据，实现了图形编辑、空间分析、数据的查询与统计、专题图绘制、以及数值模拟等功能。利用本系统可对图形进行空间处理分析，对各类数据进行各种查询，实现图形和数据的互动，并对所获得的数据制作各种专题图，并且通过数值模拟具体、直观的再现观测实体的空间位置与相应的属性，为综合预测与评估提供科学依据。  相似文献   

煤矿水害多源信息预测方法研究   总被引：1，自引：0，他引：1  

崔三元  崔若飞 《物探与化探》2005,29(6):557-560,564

基于MAPGIS平台,用Visual C＋＋对其进行二次开发,研制了煤矿水害多源信息预测系统.通过对地震、电法、水文地质等多源数据进行处理后,在MAPGIS系统下进行成图、配准和空间定量分析,建立了预测模型.用该系统对煤矿实际资料进行了处理,结果表明其预测结果较传统方法更为准确.  相似文献