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This document summarizes a presentation on building location-aware apps using open source and open data. It discusses using open source maps with raster and vector tiles, geolocation services, open source geocoding with Pelias, and routing with OSRM. It also covers using Bluetooth beacons for indoor positioning and location-based experiences. The presentation includes demos of working with maps, geolocation, and beacons.
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- 1. Building Location-Aware Apps with Open Source & Open Data #openmaps Matthew Smollinger @mattsmollinger Chuck Greb @ecgreb SXSW Interactive | 14 March 2015
- 2. Mapzen is an open source mapping lab building and supporting open data and software to promote a healthy mapping ecosystem.
- 3. Skaffl is an EdTech company that specializes in mobile solutions for the K-12 market.
- 4. start where you are
- 5. Part 1: Overview Location-aware apps Open source and open data Part 2: Maps Raster tiles Vector tiles Part 3: Geolocation, Search & Routing Location services Geocoding Navigation Part 4: Beacons & BLE Monitoring and ranging Indoor positioning Agenda
- 7. Building Location-Aware Apps with Open Source & Open Data #openmaps
- 8. 3 kinds of location-aware apps Mapping applications Location-based apps Apps with location-aware features Location-Aware Apps
- 18. Apps with location-aware features
- 21. Common features Maps Geolocation Search Navigation Location-Aware Apps
- 22. Building Location-Aware Apps with Open Source & Open Data
- 23. Code Open Source
- 27. Advantages Transparency Flexibility Compatibility Free! Location-Aware Apps
- 28. Open source is not free like beer Open Source
- 29. Open source is free like a puppy Open Source
- 30. Building Location-Aware Apps with Open Source & Open Data
- 31. Availability & Access Open Data
- 32. Reuse & Redistribution Open Data
- 35. OpenStreetMap (OSM) Crowdsourced & public data Local knowledge Attribution Share-alike Open Data
- 38. Datasource Maps
- 40. 256 x 256 pixels Maps
- 41. Zoom level 0: 1 tile for the world Maps
- 42. Zoom level 1: 4 tiles for the world Maps
- 43. Zoom level 2: 16 tiles for the world Maps
- 44. # of tiles = 2z x 2z Maps
- 53. Maps Style
- 55. Why open source maps? Cost Customization Privacy & security Maps
- 57. osmdroid Android only Raster tiles Started in 2008 Based on Google Maps API v1 Online and offline tile sources Icons, tracking, and shapes Maps
- 59. Mapbox #openmaps
- 60. Mapbox iOS & Android SDKs Raster & vector tiles Simple integration with Mapbox tile server Alternate tile servers also supported Maps
- 63. OpenScienceMap Universit辰t Bremen Pure vector maps Native rendering engine Java wrapper Objective-C translation Maps
- 66. Tangram ES Embedded systems version of Tangram for web Native C++ rendering library iOS, Android, and Raspberry Pi EARLY work in progress! Maps
- 69. #openmaps Part 3: Geolocation, Search & Routing
- 71. Location Services Geolocation, Search & Routing
- 73. Location Providers GPS Wi-Fi Cell network Passive Sensors BLE Geolocation, Search & Routing
- 75. Location Providers GPS Wi-Fi Cell network Passive Sensors Geolocation, Search & Routing Fused Location Provider (Android) & CoreLocation (iOS) One interface to rule them all. X
- 78. #openmaps LOSTLocation Open Source TrackerLocation Open Source Tracker
- 79. Not all those who wander are lost. J.R.R. Tolkien, The Fellowship of the Ring
- 80. LOST talks directly to the LocationManager LOST
- 81. Optimizations Frequency Accuracy Battery Life LOST
- 82. Search #openmaps
- 83. Geocoding: Real world address -> Lat/Lng Geolocation, Search & Routing
- 85. Reverse Geocoding: Lat/Lng -> Real world address Geolocation, Search & Routing
- 88. Pelias #openmaps
- 89. Pelias is a modular open-source geocoder built on top of ElasticSearch for fast geocoding. Pelias
- 90. /suggest The suggest endpoint provides a super-fast autocomplete. This API can be used to quickly find location names which BEGIN with the input text. http://pelias.mapzen.com/suggest?input=big%20ben&lat=51.5&lon=-0.06 Pelias
- 92. /search The search endpoint provides a full-text search. It will try to account for spelling mistakes and will search for your input at any position in the location name. http://pelias.mapzen.com/search?input=shoreditch&lat=51.5&lon=-0.06 Pelias
- 94. /reverse The reverse endpoint returns the nearest locations to your input lat/lon. http://pelias.mapzen.com/reverse?lat=51.5&lon=-0.06 Pelias
- 97. Turn-By-Turn Navigation Geolocation, Search & Routing
- 98. Public Transit Geolocation, Search & Routing
- 99. Open Source Routing Machine (OSRM) #openmaps
- 100. OSRM
- 101. #openmaps Demo: Geolocation, Search & Routing
- 102. #openmaps Part 4: Beacons & BLE
- 103. Beacons are awesome! How they work Cool stuff you can do Products and frameworks Examples Beacons & BLE
- 104. A (quick) Guide to BT4 Basically three protocols in one Bluetooth Low Energy Operates in Two modes - Advertise and Connect Only advertise is required - connect support is optional
- 105. Beacons Beacons implement advertise only Transmit at regular intervals Simplification of the BLE implementation Replaces MAC address with UUID Major number is for grouping Minor number is for individualization
- 106. Indoor Location Several different ways to accomplish Wifi Triangulation Ultrasonic Location BLE Triangulation Wifi is lackluster for triangulation Ultrasonic need custom hardware BLE range is poor compared to wifi or ultrasound
- 107. Open Source Indoor Location Currently in very early discussions in OSM A few frameworks / attempts are being made: 皙 Redpin 皙 Cricket from MIT 皙 iLocate 皙 indoor.io Needs more time to bake In the mean time...