pedinel / vtm

OpenGL vector map library written in Java - running on Android, iOS, Desktop and within the browser.

V™

VTM was developed within the OpenScienceMap project.

This fork continues VTM development. And provides compatibility with latest Mapsforge.

If you have any questions or problems, don't hesitate to ask our public mailing list for help.

See the integration guide and changelog. And read through how to contribute guidelines.

Features

• Java map library
• OpenGL vector-tile rendering
• Themeable vector layers
• Support for multiple tile sources:
  • primary opensciencemap (.vtm)
  • mapsforge files
  • GeoJSON tiles
  • bitmap: any quadtree-scheme tiles as texture
• Backends:
  • Android (optional libGDX)
  • iOS (using libGDX/RoboVM, instructions)
  • Desktop (using libGDX/LWJGL)
  • HTML5/WebGL (using libGDX/GWT)

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
• vtm-android-gdx Android backend (with libGDX)
• vtm-desktop Desktop backend
• vtm-ios iOS backend
• vtm-web HTML5/GWT backend
• vtm-web-app HTML5/GWT application

The libGDX backend for GWT is experimental.

Applications

• VTM is used by many applications.

WebGL Demo

OpenScienceMap view of Bremen.

• Hold right mouse button to change view direction.

Credits

This library contains code from several projects:

• Android: some Matrix code, TimSort (http://source.android.com)
• libGDX: AsyncTask, MathUtils and Interpolation classes (https://github.com/libgdx)
• mapsforge: based on 0.2.4 (https://github.com/mapsforge/mapsforge)
• osmdroid: some overlay classes (https://github.com/osmdroid/osmdroid)
• tessellate: (https://github.com/cscheid/tessellate)

Screenshots