![]() ![]() ![]() Vector tiles need fewer zoom levels compared to raster tiles without degradation of map quality. It is possible to enable/disable some elements on the map (or define multiple completely different styles) for a single set of input vector tiles without having to generate multiple sets of tiles. For example, it is possible to rotate map and still have labels horizontally oriented to improve readability. Greater flexibility of displaying tiled maps.Vector tiles are becoming increasingly common in GIS world. ![]() This is in contrast to raster tiles which already contain the "final" images as desired by authors of raster tiles. Vector tiles do not have any styling information assigned so clients need to apply a cartographic style in order to display the data. Thanks to these optimizations during tile creation, clients can display data faster without having to spend time to simplify geometries or filter out irelevant data. Most of the time, source vector data get clipped, filtered and simplified before converted into vector tile format. Individual tiles therefore contain collections of vector features (each with a geometry and a set of attributes). The crucial difference to raster tiles is that each tile contains encoded vector data instead of a raster image (e.g. Vector tiles are a somehow similar to raster map tiles: map data are stored within regular tiles of multiple zoom levels. Overviewįeel free to skip this section if you are already familiar with concepts of vector tiles. This QEP proposes addition of native client support of Vector Tiles to QGIS: to be able to load and display vector tiles in map canvas within QGIS. Author Martin Dobias ( wonder-sk at gmail dot com ![]()
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