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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 withOpen Source & Open Data #openmaps Matthew Smollinger @mattsmollinger Chuck Greb @ecgreb SXSW Interactive | 14 March 2015
- 2. Mapzen is anopen source mapping lab building and supporting open data and software to promote a healthy mapping ecosystem.
- 3. Skaffl is anEdTech company that specializes in mobile solutions for the K-12 market.
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- 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
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- 7. Building Location-Aware Apps withOpen Source & Open Data #openmaps
- 8. 3 kinds oflocation-aware apps ⇢ Mapping applications ⇢ Location-based apps ⇢ Apps with location-aware features Location-Aware Apps
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- 18. Apps with location-awarefeatures
- 21. Common features ⇢ Maps ⇢Geolocation ⇢ Search ⇢ Navigation Location-Aware Apps
- 22. Building Location-Aware Apps withOpen Source & Open Data
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- 27. Advantages ⇢ Transparency ⇢ Flexibility ⇢Compatibility ⇢ Free! Location-Aware Apps
- 28. Open source isnot free like beer Open Source
- 29. Open source isfree like a puppy Open Source
- 30. Building Location-Aware Apps withOpen Source & Open Data
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- 35. OpenStreetMap (OSM) ⇢ Crowdsourced& public data ⇢ Local knowledge ⇢ Attribution ⇢ Share-alike Open Data
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- 40. 256 x 256pixels Maps
- 41. Zoom level 0: 1tile for the world Maps
- 42. Zoom level 1: 4tiles for the world Maps
- 43. Zoom level 2: 16tiles for the world Maps
- 44. # of tiles= 2z x 2z Maps
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- 55. Why open sourcemaps? ⇢ Cost ⇢ Customization ⇢ Privacy & security Maps
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- 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
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- 60. Mapbox ⇢ iOS &Android SDKs ⇢ Raster & vector tiles ⇢ Simple integration with Mapbox tile server ⇢ Alternate tile servers also supported Maps
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- 63. OpenScienceMap ⇢ Universität Bremen ⇢Pure vector maps ⇢ Native rendering engine ⇢ Java wrapper ⇢ Objective-C translation Maps
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- 66. Tangram ES ⇢ Embeddedsystems version of Tangram for web ⇢ Native C++ rendering library ⇢ iOS, Android, and Raspberry Pi ⇢ EARLY work in progress! Maps
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- 73. Location Providers ⇢ GPS ⇢Wi-Fi ⇢ Cell network ⇢ Passive ⇢ Sensors ⇢ BLE Geolocation, Search & Routing
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- 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 SourceTrackerLocation Open Source Tracker
- 79. Not all thosewho wander are lost. ― J.R.R. Tolkien, The Fellowship of the Ring
- 80. LOST talks directlyto the LocationManager LOST
- 81. Optimizations ⇢ Frequency ⇢ Accuracy ⇢Battery Life LOST
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- 83. Geocoding: Real world address-> Lat/Lng Geolocation, Search & Routing
- 85. Reverse Geocoding: Lat/Lng ->Real world address Geolocation, Search & Routing
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- 89. Pelias is amodular open-source geocoder built on top of ElasticSearch for fast geocoding. Pelias
- 90. /suggest The suggest endpointprovides 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 endpointprovides 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 endpointreturns the nearest locations to your input lat/lon. http://pelias.mapzen.com/reverse?lat=51.5&lon=-0.06 Pelias
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- 98. Public Transit Geolocation, Search& Routing
- 99. Open Source RoutingMachine (OSRM) #openmaps
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- 103. Beacons are awesome! ⇢How they work ⇢ Cool stuff you can do ⇢ Products and frameworks ⇢ Examples Beacons & BLE
- 104. A (quick) Guideto 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 implementadvertise 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 ⇢ Severaldifferent 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 IndoorLocation ⇢ Currently in very early discussions in OSM ⇢ A few frameworks / attempts are being made: ⬝ Redpin ⬝ Cricket from MIT ⬝ iLocate ⬝ indoor.io ⇢ Needs more time to bake ⇢ In the mean time...
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