Mapboard GIS includes a wide variety of Mapbox basemaps
to contextualize mapping.
mbtiles-formatted basemaps and streaming imagery can be added,
allowing a wide range of map imagery to be used in the application.
Caching tiles from Mapbox's servers will be supported a later version of the app.
The most common way to get outside imagery into Mapboard GIS is to convert it to a MBTiles basemap. MBTiles is a pre-tiled imagery format where imagery for different zoom levels is stored in a SQLite database (see the spec). It is easy to consume on mobile devices with relatively little overhead. However, because it's not a traditional GIS format, it must typically be prepared by the user. There are a few options:
mbtilesfiles from existing raster layers.
- The commercial MapTiler package can be used to generate MBTiles datasets from imagery sources including GeoPDFs (see this help page).
- The RasterIO MBTiles extension allows the creation of MBTiles files from most raster imagery.
- GDAL can be used to create a MBTiles file using the
A generic recipe for MBTiles preparation with GDAL:
gdal_translate -expand rgba input.tif step1.tif gdalwarp -t_srs EPSG:3857 step1.tif step2.tif gdal_translate -of mbtiles step2.tif output.mbtiles gdaladdo output.mbtiles 2 4 8 16 32 64 128 256