共查询到20条相似文献，搜索用时 46 毫秒
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在ICT技术推动下,地图学的发展迎来空前的挑战,本文针对当前地图学的发展面临的问题和转变,深入分析传统地图学的限制——物理空间的传统约束,面向现代地图的形式松散化,从现实与虚拟、外表与内里、纸质与电子等8个方面论述现代地图学信息空间的数字自由,并针对数字时代和大数据的发展机遇和需求,拓展地图学框架,同化新兴元素,推动地图学复兴。 相似文献
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数字制图与GIS空间分析由于应用不同导致相应软件和数据不能共享,其根本原因是二者采用了不同的空间数据模型。在分析面向数字制图数据模型和面向GIS空间分析数据模型的特征基础上,提出了一种一体化的空间数据模型。该模型以面向GIS空间分析数据模型为主,面向数字制图数据模型为辅,在几何层次融合了拓扑数据模型和实体数据模型。最后,设计和开发了相应的原型系统,验证了模型的合理性和可行性。 相似文献
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相比传统手工制图,数字地图制图从产生阶段就展现出了相对的优势,了解传统手工制图向数字地图制图的过渡机制,有助于把握数字地图制图学在信息时代的发展动向。因此,数字地图制图学将如何融合信息时代的众多新技术也是一个值得研究的领域。本文以传统地图制图到数字地图制图再到智能地图制图为主线,分析了数字地图制图学产生的必要性、理论指导、技术支撑和发展新动向,以此探索数字地图制图学的发展趋势。 相似文献
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地图学四面体--数字化时代地图学的诠释 总被引：35，自引：4，他引：31
传统地图学研究3个关系:实地-地图,读者-地图,读者-实地.这个学科的框架可以称为"地图学三角形".对这三种关系的研究随学科和行业的不同而各有侧重.数字地图的出现扩大了传统地图学的视野和服务面.现代地图学需要面对6个关系的探讨.除了上述3个关系外,还要增加数字地图-地图,数字地图-实地,数字地图-读者3个关系.新的学科框架变成了"地图学四面体".从"三角形"到"四面体"反映了信息时代地图学的发展与变革.地图学的存在取决于人类对地图永恒的需求和地图本身的科学价值. 相似文献
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数字制图自执行框架为改善数字制图过程复杂、周期冗长的状况提供了途径,自执行框架的构成需要大量的数字制图元胞自动机作为主体。通过对一体化数字制图处理方法的分析,总结出数字制图处理方法的3种基本形态以及作用流程,并对其中的常见方法进行了分析规划,为数字制图元胞自动机方法库的建立提供了基础。 相似文献
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《制图学和地理信息科学》2013,40(3):269-277
The current generation of US students engaging with cartography has always had some form of access to computing technologies. Further, this generation has always known a world with networked computer capabilities – the Internet and World Wide Web. Their experience of cartography is largely through fleeting representations shown on a variety of display screens, thereby encountering information differently than most of their instructors. Teaching cartography to these “digital natives” consequently challenges teachers to engage increasing levels of experience and knowledge of technology while assuring fundamental understanding of cartographic concepts and analysis techniques. Although GIS is used in a vast range of fields, we believe many students are discouraged from programs and courses oriented towards educating cartographic specialists. However, general interest in mapping has never been as significant a part of American culture as it is today. In spite of accessible modes of digital mapping now widely available, introducing cartographic fundamentals retains great significance for undergraduate cartography education. In this paper we present a new pedagogical model for undergraduate cartography education that introduces students finding curiousity in mapping, but lacking desire to become cartographic specialists, to mapping. This model enables undergraduate students to learn fundamentals and begin to reflect critically on the concepts and techniques of modern cartography. Our example stems from a class that systematically addresses barriers to learning and mapping through active-learning based approaches in an interactive classroom. The active-learning approach involves significant engagements with the potentials and challenges of modern cartography in the information age by embracing inquiry-based pedagogical methods and learning with and about mapping. 相似文献
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数字环境下制图综合概念和方法的拓展 总被引：9，自引：0，他引：9
制图综合是地图学的一个核心和难点问题。随着GIS应用领域的拓展和地理空间信息栅格的提出，需要研究多尺度、多分辨率或不同详细程度的空间地理数据的自动生成问题，以满足GIS多层次应用与决策的需求，而这正是制图综合在数字环境下所要面对的新问题。因此，数字环境下制图综合不应该再仅仅局限于图形综合的概念，而且还应该包括基于地图数据库的数据集成、数据表达、数据分析和数据库派生的数据综合，更侧重于GIS环境下空间数据的多尺度表达以及数字信息处理的问题。 相似文献
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《The Cartographic journal》2013,50(2):199-201
AbstractThe author reflects on some of the main influences on map design which occurred during his own working lifetime in cartography. These include the post-World War II developments in graphic arts technology and the impetus these gave to what is now regarded to 'traditional' cartography; the design challenge of the photomap; theory and research in the nineteen seventies and early nineteen eighties and finally the digital transition.The use of powerful digital systems to experiment with cartographic design, and the improvements in design standards which expert systems may offer to noncartographers are regarded as important prospects in the immediate future. 相似文献
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一种面向多应用的大比例地形图数据模型 总被引：4，自引：0，他引：4
张雪松 《武汉大学学报(信息科学版)》2004,29(2):144-148
提出了一种新型的面向对象的大比例地形图数据模型 ,并给出了相应的数据结构与软件实现方法。实验证明 ,该模型能很好地满足传统制图与GIS的双重需求 ,实现数据一次采集便能同时进入地图数据库与地理数据库 ,具有较好的应用价值 相似文献
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以《中国土地资源调查数据集》中的专题地图制作技术为例 ,提出了基于现有 GIS与桌面出版系统功能的集成式的现代专题地图制作系统的软硬件构成和制作工艺流程 ,简要分析了该系统中有关数据接口、分析和处理等方面的特点 ,认为发展现有的 GIS系统 ,提高它的兼容性及制图出版能力 ,同时桌面出版系统借鉴 GIS技术 ,提供数据库操作功能 ,能够直接不丢失信息地读取 GIS数据将是未来的发展方向。 相似文献
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以人工智能背景下的智能地图制图为切入点,分析了时空大数据给地图学带来的冲击,指出地图可能的三个演化方向,剖析了智能制图内涵及其具有的众源数据、用户参与、模型耦合和可视化分析等特征,深入讨论智能制图显性和隐性知识表征,提出建立地图知识图谱的构想,总结了基于低代码技术的平台开发范式。 相似文献
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《制图学和地理信息科学》2013,40(3):291-292
Innovation in cartography has come to depend on the design of software. This essay recounts two cycles of software development at the Harvard Laboratory for Computer Graphics which used different models for intellectual control. In retrospect, each model had its successes, but in neither period were there enough new professionals trained to expand the field of digital cartography. 相似文献
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Isi A. Ikhuoria 《Transactions in GIS》1999,3(4):343-358
The provision of geographical information systems (GIS), particularly as an integrator of digital cartographic principles, in West Africa is evaluated by examining the professionalism and manpower issues, trends of cartographic and GIS education and training, usage of modern technology and dissemination of spatial information as well as in terms of the level of regional co-operation. The analysis shows that there is potential for the rapid growth and recognition of the disciplinary and societal relevance of GIS in West Africa. This is indicated by the cartography, remote sensing, and GIS programmes being established in Nigerian and Ghanaian tertiary institutions, as well as the changes from analogue to digital mapping procedures in the public and petroleum oil organisations. 相似文献
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计算技术的发展需要与之相适应的计算模式。经过几十年的发展,计算范式经历了三次转变:中心式计算、分布式计算和移动式计算,并向普适计算迈进。不同的计算范式孕育了不同的制图模式,地图制图模式也经历了三次转变:单机版的计算机地图制图、网络地图制图和移动地图制图,并向普适地图制图的模式改变。普适地图制图是普适计算技术在地图制图领域的应用,是普适计算与地图制图相结合的产物,它的出现给地图制图带来了一场新的革命。在分析国内外相关文献的基础上,阐述了普适地图制图的概念,重点介绍了普适地图制图的主要研究内容和关键技术,为今后普适地图制图的研究提供了一定的指导意义,具有较好的参考价值。 相似文献
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ABSTRACT We introduce a semantically-enriched method of generating color schemes for various types of digital maps that reduces the energy consumption of the display device while preserving the quality of the original design. Energy-aware design intersects two important trends in cartography. First, as more maps are viewed today on mobile, battery life has become a central constraint influencing design. Second, there is increasing need for green computing, which encourages the efficient use of energy to limit environmental impacts. This paper focuses on one important aspect of energy-aware cartography: color design. Existing research on energy-aware color adjustment methods apply broadly to images or websites. However, the colors used in maps have more structured semantic relationships than most documents viewed on mobile devices, and efforts to account for these relationships while reducing energy consumption are limited. To fill this gap, we mathematically formalize energy-aware map-color adjustment as a constrained optimization problem: we define energy consumption as the objective function and model the preservation of semantic relationships as the search constraints. We evaluate our proposed method against a common color dimming method using four maps with different semantic relationships. The evaluation suggests that our proposed method better preserves the original color semantics. 相似文献
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城市建设出现了地形图图式未规定的地物要素,地形测量、地理信息系统、数字制图技术的应用给图式的设计提出了新的课题,本文旨在探讨设计和修订图式的思路和方法。 相似文献