3D POIs

Display a real world 3D map model with real world Points of Interest on it, in an Augmented Reality application.

The app displays a portion of Rome with some coffee places around it.

Prerequisites

• Supported devices

Screenshots

Demo

Screenshots

Main Libraries and Sources

• 3D models: Open Street Maps
• OSM map to OBJ: OSM2WORLD
• ARCore
• Sceneform
• POIs API: tomtom

How to add your custom map

• Select your map section in Open Street Maps and download it (export). You will get a .osm file.
• Transform the .osm file to .obj via OSM2World.
• Optional step: adjust your .obj model using a tool like Blender (for example, change material colors, remove polygons, etc).
• In Android Studio, import your .obj file using Google Scenform Tools
• In 3DPOIsDomain, MapInfoResolver, you need to set some data about the map. This is needed to make it possible transform gps coordinates to OpenGl vertex position (in order to place the POIs):
  • Map center. You can find that info in your .osm file, element bounds.
  • Scale: Check the generated .sfa file. Look for model -> scale
  • ReferencePoint: This is a tricky one. Basically, we need a known point in the model to associate with a gps coordinate. In the example, we know that one corner of the Coliseum, with lat=41.89007, lon=12.49344 is in the vertex 235.84084f, -197.85388f (altitude not used). This info allow as to performa simple coordinates extrapolation, that it's good enough for a small map portion with not much high differences.
• To use tomtom places search, set your key in 3DPOIsData, POIsRepositoryImpl.