You Know You are Addicted to OSM When…Tim Waters @tim_waters chippy
Definitions OCOSMD (JS Schmidt) Addiction Person Mapper CommunityWider ecosystem
OSM Purity Self Test Please edit & translate! If you feel compelled...http://wiki.openstreetmap.org/ wiki/OSM_purity_self-test
OSM Purity Self Test: What do you do if theweathers too bad to go outmapping at the weekend?
0 - watch the TV1 - look at the OSM website to see howyour area is getting on2 - work on OSM software of some sort3 - wander round your local streets with aGPS for about half an hour, umbrella4 - catch the train, bus or drive tosomewhere unmapped and map it in vehicle5 - Go out all day regardless, nothing willstop you!
You Know You are Addicted to OSM When… indicators
When your GPS breaks...but its okay! Armchair mapping Walking Papers HOT Task Manager
You see a new roundabout, and decide to drive 6 times full circle init, to get all an inner and outer lanes. (JDS)
You go on holiday to a remoteScottish island, and your baby son says “GPS” as his first word - jonobennet GPS
“When, even at your age, youre still looking for Easter Eggs” - Maning http://wiki.openstreetmap.org/wiki/ Copyright_Easter_Eggs
You can tell where a trace is by reading the raw NMEA/GPX log...$GPRMC,184332.07,A,1929.459,S,02410.381,E,74.00,16.78,210410,0.0,E,A*2B$GPGGA,184333.07,1929.439,S,02410.387,E,1,04,2.8,100.00,M,33.9,M,,0000*65$GPGLL,1929.420,S,02410.393,E,184334.07,A,A*71$GPVTG,16.78,T,,M,74.00,N,137.05,K,A*36$GPRMC,184336.07,A,1929.380,S,02410.405,E,74.00,16.78,210410,0.0,E,A*27$GPGGA,184337.07,1929.361,S,02410.411,E,1,04,1.8,100.00,M,33.9,M,,0000*60$GPGLL,1929.341,S,02410.417,E,184338.07,A,A*76$GPVTG,16.78,T,,M,74.00,N,137.05,K,A*36$GPRMC,184340.07,A,1929.301,S,02410.429,E,74.00,16.78,210410,0.0,E,A*21$GPGGA,184341.07,1929.282,S,02410.435,E,1,04,2.3,100.00,M,33.9,M,,0000*63$GPGLL,1929.262,S,02410.441,E,184342.07,A,A*78$GPVTG,16.78,T,,M,74.00,N,137.05,K,A*36$GPRMC,184344.07,A,1929.223,S,02410.452,E,74.00,16.78,210410,0.0,E,A*28$GPGGA,184345.64,1929.203,S,02410.458,E,1,04,2.3,100.00,M,33.9,M,,0000*60$GPGLL,1929.183,S,02410.464,E,184346.07,A,A*77$GPVTG,16.78,T,,M,74.00,N,137.05,K,A*36
You can convert degrees of latitude / longitude to meters in your head var R = 6378.137; // Radius of earth in KM var dLat = (lat2 lat1) * Math.PI / 180; var dLon = (lon2 lon1) * Math.PI / 180; var a = Math.sin(dLat/2) * Math.sin(dLat/2) + Math.cos(lat1 * Math.PI / 180) * Math.cos(lat2 * Math.PI / 180) * Math.sin(dLon/2) * Math.sin(dLon/2); var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 a)); var d = R * c; return d * 1000;
...where a place is by its zoom 12 tile z/x/y 14/14553/6451