Abstract
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.
Highlights
As a special form of language, maps are a tool for humans to recognize the world and display the results of changes in the world [1–3]
This paper proposed a Portable Document Format (PDF) tile map model combined with PDF mapping technology that is suitable for a web map service with the aim of providing a new solution for vector tiles
The amount of PDF tile data for the same area is much smaller than the amount of raster tile data
Summary
As a special form of language, maps are a tool for humans to recognize the world and display the results of changes in the world [1–3]. Vector tile maps are currently generated based on geographic information They use symbol mapping mechanisms supported by specific symbol libraries. We take map publishing data as the data source and PDF map technology as the technical support, with the goal of establishing a new PDF vector tile map model that can be used for web map services. This model has the existing ability of the vector tiles, and other advantages.
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