How to Create & Publish WMTS(Web Map Tiles Services) in GeoServer.
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What is WMTS?
A Web Map Tile Service (WMTS) is a standard protocol for serving pre-rendered or run-time computed georeferenced map tiles over the Internet.
A tiled web map, slippy map or tile map (raster or vector) is a map displayed in a browser by seamlessly joining dozens of individually requested image or vector data files over the internet. It is the most popular way to display and navigate maps, replacing other methods such as WMS which typically display a single large image, with arrow buttons to navigate to nearby areas. Google Maps was one of the first major mapping sites to use this technique. The first tiled web maps used raster (image) tiles, before the emergence of vector tiles.
There are several advantages to tiled maps. Each time the user pans, most of the tiles are still relevant, and can be kept displayed, while new tiles are fetched. This greatly improves the user experience, compared to fetching a single map image for the whole viewport. It also allows individual tiles to be pre-computed, a task easy to parallelize. Also, displaying rendered images served from a web server is less computationally demanding than rendering images in the browser, a benefit over technologies such as WFS. The advantage of vector tiles is that each client (browser) can apply a custom style to the map. In such a case the actual map tile pixel is rendered by the browser. An advantage of vector tiles is that the client can decide to rotate the map without all text labels becoming unreadable, as the labels don't rotate.Publishing
Vector/Raster Data as WMTS
A Web Map Tile Service (WMTS) is a standard protocol for serving pre-rendered or run-time computed georeferenced map tiles over the Internet.
A WMTS delivers tiles (mostly 256x256 pixel size), while WMS delivers one image per request. Main advantage of tiles is that they can be pre-rendered on the server side, and cached on the client side. This will reduce waiting time for the data and bandwidth.
Once WMS is created for Vector / Raster, you are likely already have the WMTS for it, but make sure "tile caching" enabled in the layer definition panel.
To check the “Tile catching” enabled or not, please follow the steps;
Figure 77 - Layers Page
Click on Title of the layer to open Edit Layer pageClick on Tile Cachingtab
Figure 78 - Tile Caching
- Select “Create a cached layer for this layer”
- Select “Enable tile caching for this layer”
Follow the same steps as mentioned to create &add WMS/WMTS to QGIS or any GIS software
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