Abstract
Abstract. The UN Vector Tile Toolkit (https://github.com/un-vector-tile-toolkit/) is a package of open source tools designed under the UN Open GIS Initiative to enable public basemap providers, such as the UN geospatial information services or mapping organizations of governments, among others, to deliver their basemap vector tiles leveraging the latest web map technologies. The toolkit provides a set of Node.js open source scripts designed for developers to use with existing and proven open-source software such as Tippecanoe, Maputnik and Vector Tile optimizer. The toolkit will help organizations to produce, host, style, and optimize fast and interoperable basemap vector tiles, making them available with various application frameworks. The talk will cover automatic and continuous updates of basemap vector tiles using a continuously updated PostGIS database which stores both the UN mission-specific basemap data and global OpenStreetMap data. The talk also focuses on how the project ensured interoperability with different existing enterprise geospatial software frameworks that use less-advanced web map libraries. The project aims to build a sustainable community of developers that support the provision of fast and interoperable basemap vector tiles.
Highlights
Presentation of maps is transforming, due to the digitalization of information environment and the mobilization of information terminals
It is worth noting that the transition involves the use of open source methodology especially among players other than dominant web map platforms to share the key vector tile technology
The was a generation of web maps called "2.75 generation" (MacWright, 2015) where tiles are stored as vector tiles, but sent to the client after rendering to the image tiles
Summary
Presentation of maps is transforming, due to the digitalization of information environment and the mobilization of information terminals. Responsive and real-time presentation of the maps in the field environment is becoming indispensable functions in modern web maps. Web maps refer to maps presented in information terminals including mobile ones by using Internet connections. We shortly review the need for vector tiles in web maps
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