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Open AccessArticle

A PDF Tile Model for Geographic Map Data

by Xiaodong Zhou 1,2,3,*, 1, 4 and 2,3
1
School of Resource and Environmental Science, Wuhan University, 129 Luoyu Road, Wuhan 430079, China
2
Xi’an Research Institute of Surveying and Mapping, Xi’an 710054, China
3
State Key Laboratory of Geo-Information Engineering, Xi’an 710054, China
4
College of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054, China
*
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2019, 8(9), 373; https://doi.org/10.3390/ijgi8090373
Received: 5 August 2019 / Revised: 22 August 2019 / Accepted: 24 August 2019 / Published: 27 August 2019
Vector tile mapping is an important issue in web map research. At present, vector tile mapping requires the symbolization of geographic information, as supported by cartographic software, and the development of a corresponding symbolic database when web map services are provided for users. The development of PDF (portable document format) mapping makes it possible to use symbolized map data directly for web map services. This paper presents a PDF tile map model suitable for web map services, in order to provide a new solution for vector tile mapping. This paper details the construction and establishment method of the PDF tile map model and verifies that the model has the characteristics of a vector tile map and that this approach can provide web map services. In addition, this model has some other noticeable characteristics. First, the map service supported by this model does not require the support of cartographic software, and thus has low system software and hardware requirements. Second, the maps displayed in the service system can be directly used for high-quality map publishing. Third, the high popularity of the PDF format can promote the sharing of PDF tile maps and reduce the use threshold of ordinary users. View Full-Text
Keywords: vector tiles; PDF tiles; map tiles; web map; map visualization; clipping; splicing vector tiles; PDF tiles; map tiles; web map; map visualization; clipping; splicing
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Zhou, X.; Ai, T.; Meng, N.; Xie, P. A PDF Tile Model for Geographic Map Data. ISPRS Int. J. Geo-Inf. 2019, 8, 373.

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