共查询到19条相似文献,搜索用时 62 毫秒
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多维动态GIS的空间数据建模,处理与分析 总被引:27,自引:0,他引:27
首先分析了在多维空间模型与建模、动态处理与数据集成管理、时空分析与可视化等方面存在的问题和关键技术,然后介绍了国际学术界近几年来的研究动态,继而介绍在国家自然科学基金支持下我国学在此领域的研究进展,并重点介绍国家自然科学基金跨学部重点项目“多维动态空间数据处理若干关键技术问题”的目标和任务。 相似文献
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三维建模技术不仅是数字城市建设的重要技术手段,也是三维城市GIS的核心。本文详细阐述了AnGeo软件中的三维建模及可视化技术,通过对获取的地图数据的预处理、地物建模和纹理处理、三维地形产生等操作实现了城市三维可视化,为城市的数字化建设提供了有效的参考。 相似文献
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空间处理建模技术的概念和应用——利用ArcGIS Model Builder工具实现空间数据的转换 总被引:1,自引:0,他引:1
结合ArcGIS Model Builder 工具,介绍空间处理建模技术的基本概念和建模流程,并利用该工具定义空间数据转换处理流程模型,实现CAD数据、Excel属性数据到ArcGIS空间数据转换处理. 相似文献
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论空间数据处理与空间数据挖掘 总被引:9,自引:0,他引:9
王新洲 《武汉大学学报(信息科学版)》2006,31(1):1-5
根据现行文献中反复提到的空间数据处理内涵的理解.将空间数据处理分为空间数据处理技术和空间数据处理理论,简要论述了各自的主要内容.讨论了空间数据挖掘的现状和今后研究的重点,比较了空间数据处理与空间数据挖掘的异同。 相似文献
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High quality infrastructure is crucial to economic success and the sustainability of society. Infrastructures for services, such as transport, energy, and water supply, also have long lead times, and therefore require effective long-term planning. In this paper, we report on work undertaken as part of the UK Infrastructure Transitions Research Consortium to construct long-term models of demographic change which can help to inform infrastructure planning for transport, energy, and water as well as IT and waste. A set of demographic microsimulation models (MSM), which are spatially disaggregate to the geography of UK Local Authorities, provides a high level of detail for understanding the drivers of changing patterns of demand. However, although robust forecasting models are required to support projections based on the notion of ‘predict-and-provide,’ the potential for behavioral adaptation is also an important consideration in this context. In this paper, we therefore establish a framework for linkage of a MSM of household composition, with behavior relating to the consumption of energy. We will investigate variations in household energy consumption within and between different household groups. An appropriate range of household types will be defined through the application of decision trees to consumption data from a detailed survey produced by the UK Department of Energy and Climate Change. From this, analysis conclusions will be drawn about the impact of changing demographics at both household and individual level, and about the potential effect of behavioral adjustments for different household groups. 相似文献
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基于空间分析的送电线路选线方法 总被引:3,自引:0,他引:3
在研究送电线路选线原则的基础上,利用空间建模方法,结合地形分析与空间分析,通过人工干预得到初选路径,经专家分析确定布线路径,以此确定合理的布线走廊,为送电线路选线提供科学依据。 相似文献
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粮食播种面积的变化及空间分布特征对农业的可持续发展以及粮食安全有着重要影响。本文采用GIS空间分析方法,以1949—2013年中国粮食播种面积变化为研究对象进行相关探讨。研究结果表明:中国粮食播种面积在近十年来重心北移十分明显;粮食作物中的豆类和薯类播种面积在1997—2013年呈现典型聚类分布特征;耕地减少对粮食播种面积的作用逐渐减弱,粮作比和复种指数成为影响粮食播种面积增长的主要因子;粮作比主要受农田基础设施建设、人口城镇化、农户种植习惯影响,与之呈现显著相关关系。 相似文献
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Analysis of human spatial behavior in a GIS environment: Recent developments and future prospects 总被引:1,自引:0,他引:1
Mei-Po Kwan 《Journal of Geographical Systems》2000,2(1):85-90
In recent years, comprehensive geographic data sets of metropolitan areas and individual-level, georeferenced data are becoming
more available to social scientists. At the same time, tools for performing spatial analysis in a GIS environment have also
become more available. These developments provide many new opportunities for the analysis and theoretical understanding of
disaggregate human spatial behavior. This paper examines how these developments may enable the researcher to represent complex
urban and cognitive environments more realistically, and to overcome the limitations of aggregate spatial data framework.
It explores their implications for the theoretical and methodological development in geography and other social science disciplines. 相似文献
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智能空间决策支持正在成为空间信息科学的一个新兴的研究热点,及时对其基本概念、基本原理和主要技术进行归纳、提炼是十分必要的。首先分析了空间决策智能化研究的必然性和必要性,探讨了智能空间决策支持的定义、研究内容和基本特征,提炼和分析了智能空间决策的主要支撑技术,最后给出了智能空间决策支持系统的基本设计思路和总体架构。 相似文献
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空间数据批量自动化处理可以保证数据的质量较高,并且可以很大限度上减轻数据处理人员的工作强度.本文结合长江河道水下空间数据处理的具体操作实例,介绍了ArcGIS脚本工具包ArcPy在空间数据批量处理中的具体应用,完成了批量修改属性信息、批量定义投影坐标系、批量拼接线状要素图,并取得了较好的结果,为ArcPy在空间数据批量处理中的应用提供了一种可行有效的解决思路. 相似文献