baldur / vtm

vector-tile-map written in java with backends for android, desktop and gwt

VTM - Very experimental Tile Map library

Future development branch based on https://github.com/opensciencemap/vtm-android

VectorTileMap is part of the OpenScienceMap project, developed at University of Bremen. http://www.opensciencemap.org

Features

• Java map library
• OpenGL vector-tile rendering
• Themeable vector layers
• Support for multiple tile sources: primary opensciencemap (.vtm)
  • vector: partially mapbox vector-tile and mapsforge files
  • bitmap: any quadtree-scheme tiles as texture
• Backends for Android, Desktop and HTML5/WebGL (through libgdx and GWT)

Notes

• checkout required libraries with 'git submodule init && git submodule update'
• To set up your own tile server for .vtm tiles see https://github.com/opensciencemap/TileStache/tree/master/TileStache/OSciMap4
• Almost everything is still in early/experimental stage and subject for being rewritten
• pull requests welcome :)

Demo

work in progress.. http://city.informatik.uni-bremen.de/~jeff/map/#scale=17,rot=61,tilt=51,lat=53.075,lon=8.807

• hold middle mouse button to change view direction
• Keys
  • g - toggle tile-grid layer
  • d - default theme
  • t - tubes theme

Credits

This library contains code from several projects:

• mapsforge: based on 0.2.4
• osmdroid: some overlay code
• libgdx: AsyncTask, some modfied classes
• android: some Matrix code
• Triangle: stripped down for simple triangulation (through jni)