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Hi, I am planning to render the osm data on the mobile devices which do not have a connection to the internet. This means that all data will be locally stored on the device. The thing I am looking for is a tool which can generate for me vector tiles for specific zoom levels. I will have a number of zoom levels (let's say from 1 to 100) and vector tiles will specify which nodes/ways should be visible for a specific zoom level. It is not an option for me to generate raster tiles because of space limitation on the device. Could anyone recommend a tool for generating the vector tiles? Thank you. |
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There are several open source Android Apps that do offline vector rendering, like OsmAnd or GpsMid. You might get some hints looking at how they do it. mapsforge is a vector based Android map library intended to be used as a basis for own map applications. The vector data is stored in a binary file format. There is also a new project OSMT for tiling OSM XML files, but that is in early stages and does not support relations. |
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Osmosis is pretty much the first port of call for loading OSM data into a database, getting it out again, and chopping and changing along the way. You should investigate that as your first port of call. Note that other providers, such as CloudMade, have already produced vector tiles. You may find it worthwhile seeing what they've done, too. |
