A Vector Tile Map Library

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)

Getting started

git clone https://github.com/opensciencemap/vtm
cd vtm
git submodule init && git submodule update
ln -s ../../vtm/assets/styles vtm-android-app/assets/styles
ln -s ../../vtm/assets/patterns vtm-android-app/assets/patterns

Then import projects into eclipse. Dont forget 'git submodule update' after git pull/checkout!

To set up a tile server for .vtm tiles see https://github.com/opensciencemap/TileStache/tree/master/TileStache/OSciMap4

Projects

• vtm contains the core library
• vtm-android Android backend - (no libgdx required)
• vtm-android-example provides examples using vtm-android
• vtm-gdx common libgdx backend code
• vtm-gdx-desktop Desktop application
• vtm-gdx-html HTML5/GWT application
• vtm-gdx-android Android application using libgdx backend

WebGL Demo

http://opensciencemap.org/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 (http://mapsforge.org)
• osmdroid: some overlay classes (http://code.google.com/p/osmdroid/)
• libgdx: AsyncTask, MathUtils and Interpolation classes (https://github.com/libgdx)
• Android: some Matrix code, TimSort (http://source.android.com)
• tessellate: (https://github.com/cscheid/tessellate)