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1.
基于MAPGIS的地图数字化与地图接边 总被引：9，自引：0，他引：9
地图是GIS主要数据源，地图数字化是GIS数据输入的主要手段。分幅数字化常导致数据在接边处不匹配，地图接边是实现数字匹配的重要手段。文中详细了MAPGIS地图数字化输入方法，通过MAPGIS图形变换功能，总结了9幅分幅数字化地图拼接过程，通过MAPGIS图幅接边功能介绍了交互式，全自动，半自动图幅接边操作及如何实现数字接边。 相似文献
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何东 《测绘与空间地理信息》2020,(3):173-174,177
历史地形图资料在城市规划与建设工作中发挥着重要的基础作用,历史地形图资料如何高效管理、利用,充分发挥其价值,是城市勘测单位档案管理人员普遍关心的问题。本文结合工作实践,基于Arc GIS平台的应用探讨了一种历史地形图扫描、建库的方法,对实际可行的操作方式作了详细描述。 相似文献
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Historical maps are effective sources of geographical information and useful for historical and territorial research. In this study, the examination of landscape dynamics on the basis of historical maps over a period of more than 200 years was conducted. The study area is Sorrento peninsula and part of the near Sarno river basin in South Italy. This study provides a general framework for the assessment of the overall quality and accuracy of historical maps. The application of the methodology used in this specific case study can contribute to a better understanding of the dynamics of the landscape in the long term. The derived knowledge can be applied in the planning of the landscape in order to implement correct conservation strategies. The comparison was made on four maps 1817, 1875, 1960, and 2006. Geodetic accuracy of the sheet maps of 1817 and 1875 offer a right basis for a macro analysis of land cover dynamics, evaluating conversion from one land cover category to another. Main transformation, identified in the period between 1875 and 1960, was the disappearance of vineyards, which covered 25% of the total study area in 1875. Agricultural areas increased in this period to cover 57% of the total area. 相似文献
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none 《The Cartographic journal》2013,50(1):55-56
AbstractThis paper describes a methodology for evaluating the planimetric accuracy of three US Civil War maps using GIS and spatial analytical techniques. The case-study is the Battle of Stones River in Tennessee and, in particular, maps depicting the events of December 31, 1862. An examination of the objectives, limitations and techniques employed by the topographer engineers who created the maps provides focus for the quantitative analysis and establishes the historical context needed to understand how and why the maps were constructed. The paper shows how GIS and spatial analysis can be utilized to document vanishing historic landscapes and reconstructing where certain historical events took place. 相似文献
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提出了一种基于纸质地形图的单像地形图数字修测方法,它能在不具有矢量地形图的地区,根据新摄取的航摄像片直接对原有的地形图分版图的扫描影像进行修测,然后用绘图输出修测后的像素地图,或用于ＧＩＳ中相应数据的更新。 相似文献
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简要介绍了几种利用GIS数据制作专题地图的数据转换方法,探讨了几种技术路线的实用性,从而引导专题地图制作人员使用多种方式进行GIS数据转换。 相似文献
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结合工作实际,分析了基础地形图档案资料管理中应做好的几方面工作,对历史基础地形图档案资料信息库的建立、现势基础地形图档案数据库的维护、基础地形图档案资料信息资源体系的建立等问题进行了探讨。 相似文献
11.
数据质量控制一直以来都是地理信息系统(GIS)的一个关键环节,随着GIS在地图出版领域的应用,地图出版前的数据质量控制也成为了目前需要迫切解决的问题。本文研究了交通图编制的基本要求以及编制规范,通过GIS数据和交通图出图数据的比较,总结了在交通图出版前有可能存在的数据质量问题,并提出了相应的控制措施。 相似文献
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Although visible in research in the 1980s and 1990s, works concerning language-mapping issues are recently rather absent. This is an unfortunate oversight given current GIS capability and its potential to tackle visualization issues that were previously simply acknowledged and accepted. Given that there are no established guidelines for language map construction, this work aims to renew attention to language mapping, beginning with a survey documenting the characteristics of published language maps. The survey components address the problematic aspects described in the literature, such as boundary representation and depicting linguistic diversity, and reveal their usage and frequency. The noted map characteristics include, but are not limited to: publication type, publication year, coverage area, language data or variable used, and symbology details. For consistent classification, we use a language-map symbology classification scheme found in previous research. In general, chorochromatic maps using polygonal map units dominate our survey. We also find further evidence supporting the problems outlined in language mapping literature with the widespread use of solid-line boundaries and depiction of only one language or feature per place. However, we also note some unique strategies used for handling uncertainty and linguistic plurality. Observations of tactics not captured by the existing 20-year-old typology lead us to create an updated language map symbology typology consistent with the trends observed in our survey. Overall, we document language mapping strategies in practice and provide direction for future research by highlighting the pros and cons of current cartographic approaches for depicting language. 相似文献
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本文提出了利用空间数据库和GIS技术整理分析方志、古籍的研究方法,结合《中国古代重大自然灾害和异常年表总集》中记载的各种自然灾害信息,采用面向对象的Geodatabase数据模型,建立了中国全区域的,多朝代的,多自然灾害要素的,带有地理特征的关系型数据库,实现了数据的统一描述与管理,并根据专题数据制作了单一灾害要素、多种灾害要素的专题地图,可视化分析了历史自然灾害的时空分异,最后将地图进行网络发布以实现数据共享。结果表明GIS有利于方志、古籍的数字化整理与分析,实现了以信息技术保护、传播和有效的利用方志资料。 相似文献
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To what degree does the built environment of cities shape the social environment? In this article we use a Schelling‐like agent‐based model to consider how changes to the built environment of cities relate to changes in residential segregation by income and ethnicity. To develop this model we exploit insights from a high resolution historical GIS which maps 100% of the population of Newark, NJ in 1880. Newark in 1880 had a complex social landscape characterized by areas of significant social and economic segregation and areas of relative integration. We develop a Schelling model capable of reproducing these residential patterns. We use this model to explore the decentralization of housing, a specific phenomenon associated with the demise of the walking city in the late 19th century. Holding agent preferences constant, but allowing the landscape of the Schelling model to evolve in ways that reflect historical changes to the built environment, produces changes to the social landscape that are also consistent with history. Our work suggests that changes in residential segregation do not necessarily imply changes to individual attitudes and preferences. Changes in residential segregation can be generated by changes to the built environment, specifically the geographic distribution of housing. 相似文献
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基于RS、GIS和景观生态学原理与方法,研究深圳市域景观的空间格局特征及其动态变化.采用ERDASIMAGINE遥感数据处理软件对1995年、1999年和2008年的TM遥感影像图进行数据预处理、监督分类以及分类后处理,并通过ArcMap对经过分类后处理的图像进行编辑,得到深圳市历年的景观分类图,应用FRAGSTATS... 相似文献
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基于GIS构建村庄3维模型的方法研究——以广州市萝岗区九龙镇汤村规划为例 总被引：1，自引：0，他引：1
利用MapInfo软件实现地形空间数据在CAD与GIS软件之间的格式转换,通过ArcView 3.2软件平台,建立3维数字模型,以广州市萝岗区九龙镇汤村新农村规划为例,构建村庄的3雏景观模拟环境,为新农村规划提供参考. 相似文献
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《地理信息系统科学与遥感》2013,50(3):200-223
Time series of thematic land-cover maps are used to measure changes in land cover over time. However, pixel-to-pixel comparisons of such maps are often not advisable when these maps are generated from different sources (i.e., satellite data, aerial photography, or historical land survey data). The purpose of this study was to examine the historical changes in land cover from 1827 to 1999 using landscape metrics calculated on maps created from different sources. Regression and power law analyses were conducted to identify significant trends and threshold effects associated with land-cover change at Fort Benning, Georgia. Results indicated that since 1827 the landscape has become more fragmented with the introduction of farming, military training, and forest management practices. 相似文献
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电子地图的制作是GIS系统建立的基础,具有非常重要的意义。要把GIS应用于公路信息化的建设必须对公路电子地图进行规范化的处理。本文详细介绍了公路地图处理的各个步骤:地图投影的定义、公路方向的纠正和合并、地图桩号的赋值和地图拓扑关系的生成。 相似文献
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随着云计算、物联网、移动通信、移动互联网等技术的发展,研发智能化、多维度、全方位的旅游管理信息系统,已成为旅游信息化的发展趋势。本文以青岛八大关为例,综合利用基于位置与多传感器的跟踪注册技术、瓦片地图技术、三维景观地图技术和移动增强现实系统虚实叠加技术,研究并实现了面向旅游业的移动化、信息化、智能化、个性化的智能旅游服务系统,为游客提供认知周围景观的全新视角,获得全新的交互体验。系统包括三维景观地图、虚拟漫游、路线导航、环境识别、历史建筑查询、热力图显示、好友足迹、个人轨迹、微信分享等功能模块,游客在享受旅途的同时可以获得更加智能便捷的服务。 相似文献
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Brian Robson 《The Cartographic journal》2013,50(2):133-148
The eighteenth-century field archaeologist, William Stukeley, travelled widely throughout England to produce the numerous sketches and plans that illustrated his Itinerarium Curiosum. His work has generally not been seen as having made a serious contribution to the cartography or to the portrayal of the towns and landscape of preindustrial England, but the quality of his sketches and the relative accuracy of his town plans are explored here to suggest that this may be too harsh a view. 相似文献