Then I would loolk at this previous question - Converting Ordnance Survey raster maps to WGS84 webmap tiles and determine which resampling method you want. Then select EPSG:27700 as the source SRS and then EPSG:3875 as the target SRS, Then select your VRT file, then specificy an output to save to
#MAPTILER TURN KMZ TO MBTILE OFFLINE#
It consists of a set of tools allowing everyone to create their own vector map tiles from OpenStreetMap data for hosting, self-hosting, or offline use. OpenMapTiles is an open-source project aiming to create world maps from open data.
#MAPTILER TURN KMZ TO MBTILE INSTALL#
If you dont want to install GDAL then you can use QGIS>Raster(from the top toolbar)>Projections>Warp OpenMapTiles using the MapTiler Streets style. So you need to warp the VRT from its current projection to the one required to created MBTiles - as explained in the link above.ĭo you have GDAL installed? If not you could install it and then using the link above use the gdal_warp command to convert to the EPSG 3875. You said you had already created your VRT for the rasters using QGIS. This is a painful and very time consuming route. The alternative is to use the gdal2tiles.py and then mbutil to load the directory of tiles into the mbtile.
So all you will have to do is warp your virtual raster, load into TileMill then export out. This will simulate situations where enumerators are offline. Optional: Clear the cache of the Surve圜TO Collect app, and turn off WiFi and mobile data. Unzip the file, and move it to the folder created in step 8. In the Map Review window, expand the command menu at the bottom right of the map and select Export style. Create a folder for the MBTiles file in the layers folder. You can import multiple files, as long as each has 1000 or fewer features. Notes: There is a limit of 1000 features per file. You can import multiple files with this method. Supported file types are: GPX, KML, KMZ, GeoJSON, and FIT Files.
Under the My maps section, select the newly created map and click map properties to obtain the data necessary for integrating with Flowfinity Actions. You can import files containing tracks, routes, areas, and waypoints into your Gaia GPS account. The MapBox team have a good tutorial on this - Return to the MapTiler Cloud and navigate to the Maps tab. However the problem you have is that the original raster files are in British National grid (epsg:27700) and need to be warped to the google sperical mercator projection (epsg:3857) I agree with mapbarker and say TileMill would be the best route.
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