标题：Tiled vector data model for the geographical features of symbolized maps作者：Li, L (Li, Lin); Hu, W (Hu, Wei); Zhu, HH (Zhu, Haihong); Li, Y (Li, You); Zhang, H (Zhang, Hang)

来源出版物：PLOS ONE卷：12期：5文献编号：e0176387 DOI：10.1371/journal.pone.0176387 出版年：MAY 5 2017

摘要：Electronic maps (E-maps) provide people with convenience in real-world space. Although web map services can display maps on screens, a more important function is their ability to access geographical features. An E-map that is based on raster tiles is inferior to vector tiles in terms of interactive ability because vector maps provide a convenient and effective method to access and manipulate web map features. However, the critical issue regarding rendering tiled vector maps is that geographical features that are rendered in the form of map symbols via vector tiles may cause visual discontinuities, such as graphic conflicts and losses of data around the borders of tiles, which likely represent the main obstacles to exploring vector map tiles on the web. This paper proposes a tiled vector data model for geographical features in symbolized maps that considers the relationships among geographical features, symbol representations and map renderings. This model presents a method to tailor geographical features in terms of map symbols and 'addition' (join) operations on the following two levels: geographical features and map features. Thus, these maps can resolve the visual discontinuity problem based on the proposed model without weakening the interactivity of vector maps. The proposed model is validated by two map data sets, and the results demonstrate that the rendered (symbolized) web maps present smooth visual continuity.

入藏号：WOS:000400649500008

文献类型：Article

语种：English

扩展关键词： PROGRESSIVE TRANSMISSION; WEB; REPRESENTATION; INTERNET; SUPPORT; WORLD; GIS

通讯作者地址：Li, L; Zhu, HH (reprint author), Wuhan Univ, Sch Resource & Environm Sci, Wuhan, Peoples R China.

Li, L (reprint author), Wuhan Univ, Spatial Informat Sci Collaborat Innovat Ctr, Wuhan, Peoples R China.

Li, L (reprint author), Minist Educ, Key Lab Geog Informat Syst, Wuhan, Peoples R China.

电子邮件地址： lilin@whu.edu.cn; hhzhu@whu.edu.cn

地址：

[Li, Lin; Hu, Wei; Zhu, Haihong; Li, You; Zhang, Hang] Wuhan Univ, Sch Resource & Environm Sci, Wuhan, Peoples R China.

[Li, Lin] Wuhan Univ, Spatial Informat Sci Collaborat Innovat Ctr, Wuhan, Peoples R China.

[Li, Lin] Minist Educ, Key Lab Geog Informat Syst, Wuhan, Peoples R China.

研究方向：Science & Technology - Other Topics

ISSN：1932-6203

影响因子：3.057