共查询到20条相似文献,搜索用时 15 毫秒
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GIS专题数据综合的研究 总被引:7,自引:0,他引:7
随着GIS技术在各种应用领域的推广使用,各领域的专业数据与G1S的空间数据相结合,形成描述特定地理现象的各种专题数据。与GIS空间数据一样,专题数据的应用也由微观的、较为详细地描述小区域地理现象特征,转向宏观的、较为概略地描述较大范围地理现象特征,这是专题数据综合的主要任务。该文在讨论GIS专题数据类型及特征的基础上,着重分析了专题数据综合的基本类型,并提出了专题数据综合的概念模型,为GIS专题数据自动综合的实施提供理论依据和实施方案。 相似文献
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在综合分析3D地质数据模型的基础上.提出将源数据模型分为GIS可描述和GIS不可描述数据模型的分类方法,在ArcGIS和G0(:AD平台下构建了基于GIS的多元、多方法集成的矿山3D地质模型.ArcGIS平台下描述GIS可描述数据模型,并进行数据管理和空间数据分析;GIS不可描述数据模型一方面在GOCAD下描述复杂的地质构造,另一方面采用面向对象的聚合派生法描述矿山工程模型中的空间实体,并利用Geodatabase建立两者的关联.实例应用表明,该方法保持了数据在空间和时间上的一致性,为矿山安全生产管理提供了有效和可靠的空间数据及可视化支持. 相似文献
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Dimitrina Mikhova John Pickles 《International journal of geographical information science》2013,27(5):471-477
Abstract The paper describes the present state of GIS in Bulgaria, points to some problems with its development, and puts forward several ideas about ways to improve the implementation and use of GIS in the country. Special stress is placed on the danger of centralizing GIS functions within the planning institutions of the national state, on the importance of GIS education, training and pilot projects for the future development of GIS, and the necessity to reduce the technological and informational gap between Western countries and Bulgaria. 相似文献
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Alan T. Murray Jing Xu Zifan Wang Richard L. Church 《International journal of geographical information science》2019,33(5):1106-1130
An essential location analytic method is GIS, able to support map-based display along with geographic data creation, management, manipulation in addition to functions for suitability evaluation. Location models have proven to be critical as well, with many prominent approaches found in popular GIS software. This paper reviews a class of location models and provides an overview of the methods used to solve these models. This is significant because of the broad use and application of location models in GIS to address important problems and issues facing society. Spatial analytical insights are essential. The implications of models and methods available through GIS are explored, particularly notions of solution quality. Case studies are offered to highlight ease of access to location models in GIS along with observed computational performance. 相似文献
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GIS: A New Profession? 总被引:1,自引:0,他引:1
Nancy J. Obermeyer 《The Professional geographer》1994,46(4):498-503
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《The Journal of geography》2012,111(6):349-353
Abstract The geographer can perform two functions in the classroom. First, he can use his skills as a geographer to structure the class. Second, he can use his subject matter expertise to act as a resource person (teacher) within the class. A structure for a class using the inquiry or problem-solving method of teaching is presented to maximize interaction between the members of the class. This structure involves geographic concepts of orientation, distance, shape, and size of group. Also considered is the position of the teacher in that structure as it affects the exchange and flow of ideas. The geographer can also use his methodology to test and analyze the communication within his class. 相似文献
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MICHAEL GOODCHILD ROBERT HAINING STEPHEN WISE others? 《International journal of geographical information science》2013,27(5):407-423
Abstract This article is an agreed summary of a workshop held in Sheffield between 18-20 March 1991. The focus here is on three of the themes of the workshop: the mutual benefits of closer links between geographical information systems (GIS) and the methods of spatial data analysis (SDA); the specific areas of SDA that should be linked with GIS; how the linkage should be made in practice. Directions for future research are also reviewed. The emphasis throughout is on statistical SDA and principally from the perspective of human rather than physical geography. 相似文献
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T. K. Linsey J. F. Raper 《International journal of geographical information science》2013,27(5):435-452
Abstract The rationale, development and -implementation of a task-oriented hypertext GIS interface (HyperArc) are described. HyperArc is a fully functional interface on an Apple Macintosh computer acting as a client to a host computer running the ARC/INFO GIS. The package has been developed using the HyperCard package, and makes full use of the Apple Macintosh WIMP interface, enabling the user to perform a range of standard ARC/INFO tasks, including a variety of map displays and data queries. The key advantage of this kind of interface is that it permits the creation of tasks or sets of spatial procedures which can be easily customised and executed by the end user without any knowledge of the system command language. 相似文献
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GIS不确定性框架体系与数据不确定性研究方法 总被引:1,自引:0,他引:1
该文分析了GIS数据不确定性研究现状,总结了GIS中数据不确定性的研究问题,提出GIS中数据不确定的框架体系,并结合非线性复杂科学的研究方法,对GIS数据不确定性的研究方法进行了分析、归纳和阐述。 相似文献
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Eugene W. Martin 《International journal of geographical information science》2013,27(8):715-738
Recommendations for implementation and evaluation of Geographical Information Systems (GIS) can benfit from a broader theoretical foundation to support investigation, understanding and improvement. This paper discusses Actor-Network Theory (ANT) as a framework to delineate and evaluate the social and technical interactions involved in GIS implementation. The proposed process traces actor-network interactions through texts, technical objects, people, money and control. Actor alignment, actor-network stability and obligatory points of passage are evaluated to compare actor-networks. Case study research on conservation GIS implementation in Ecuador illustrates these methods. The strength of these actor-networks is examined through analysis of actors' interactions and the presence and function of an obligatory point of passage. Stronger actor-networks exhibit alignment among actors, co-location of an obligatory point of passage with the center of calculation and credit sharing. 相似文献
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基于规则的植被地图综合的研究 总被引:3,自引:1,他引:3
植被地图综合是专题地图综合的一个特例,需要遵循地理数据综合规则,以解决因表达空问缩小而造成的地物要素间的冲突问题,确保图面上图形表达的合理、清晰和美观;同时植被地图综合也要遵循植被分布自身的规律。该文主要研究和分析影响植被地图综合的主要规则,首先描述植被地图的特征,在此基础上分析讨论影响植被地图综合的主要综合规则,并简要介绍了用于表达综合规则的产生式规则方法,用实例描述了这些规则在植被地图综合各个阶段的应用和结果,以此来反映综合规则在植被地图综合过程中的重要性。 相似文献