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2014/10/16 ¤W¤È 08:17:29
android Programming Glossary: kmAndroid Maps API v2 draw circle http://stackoverflow.com/questions/13991301/android-maps-api-v2-draw-circle double radius double R 6371d earth's mean radius in km double d radius R radius given in km double lat1 Math.toRadians.. mean radius in km double d radius R radius given in km double lat1 Math.toRadians latLng.latitude double lon1 Math.toRadians..
Highlight a specified route on Google Maps v2 Android http://stackoverflow.com/questions/14760723/highlight-a-specified-route-on-google-maps-v2-android output for one road along route . distance text 0.2 km value 203 duration text 1 min value 18 end_location..
Get the shortest distance from a point http://stackoverflow.com/questions/18420419/get-the-shortest-distance-from-a-point drawn example. Option 2 If you expect a result within X km and you want something your DB will calculate quickly you can..
How to calculate distance from different markers in a map and then pick up the least one http://stackoverflow.com/questions/19218081/how-to-calculate-distance-from-different-markers-in-a-map-and-then-pick-up-the-l from math import sin cos atan2 sqrt EARTH_RADIUS 6373 # km def distance a b # pass tuples lat1 lon1 a lat2 lon2 b dlon.. is None or d closest closest d closest_name name print ~ dkm s distance current cordinates name print nClosest location is.. current cordinates name print nClosest location is s d km away. closest_name closest Output ~5700km Kolkata ~13219km Chennai..
Adding distance to a GPS coordinate http://stackoverflow.com/questions/2839533/adding-distance-to-a-gps-coordinate as long as the random distance offset is below 10 100 km Edit of course in Java Math.cos expects radians so do use Math.cos..
How to find Hospital Location near by my location? http://stackoverflow.com/questions/4291573/how-to-find-hospital-location-near-by-my-location . Haversine formula R earth ™s radius mean radius 6 371km lat lat2 lat1 long long2 long1 a sin² lat 2 cos lat1 .cos lat2.. radians to pass to trig functions . JavaScript var R 6371 km var dLat lat2 lat1 .toRad var dLon lon2 lon1 .toRad var a Math.sin..
Get Latitude and Longitude without inserting Sim Card and Start/Stop Gps from Application http://stackoverflow.com/questions/4375913/get-latitude-and-longitude-without-inserting-sim-card-and-start-stop-gps-from-ap that you are not indoors signals from satellites 20 000 km above do not like roofs and walls Then start your app and wait..
Android: How do I set the zoom level of map view to 1 km radius around my current location? http://stackoverflow.com/questions/6002563/android-how-do-i-set-the-zoom-level-of-map-view-to-1-km-radius-around-my-curren How do I set the zoom level of map view to 1 km radius around my current location I want to set the map view.. my current location I want to set the map view zoomed to 1km radius but cant figure out how The doc says that the zoom level..
Wake the device up when app prompts user http://stackoverflow.com/questions/6445844/wake-the-device-up-when-app-prompts-user getSystemService Context.POWER_SERVICE KeyguardManager km KeyguardManager getSystemService Context.KEYGUARD_SERVICE WakeLock.. WakeLock wl null if pm.isScreenOn KeyguardLock kl km.newKeyguardLock TAG kl.disableKeyguard wl pm.newWakeLock ..
Gettting Different Distance When Using the Google Map and User defined Function http://stackoverflow.com/questions/7696112/gettting-different-distance-when-using-the-google-map-and-user-defined-function the Distance between two latitude and longitude in meter km . So i am using the below function . It gives me the different.. question This diagram explains why you get 12.5 and 17.6 kms To calculate the driving distance 17.6 km you need to use the.. 12.5 and 17.6 kms To calculate the driving distance 17.6 km you need to use the directions API share improve this answer..
How to find the screen is locked in android http://stackoverflow.com/questions/9002032/how-to-find-the-screen-is-locked-in-android screen is locked by using the below codes KeyguardManager km KeyguardManager getSystemService Context.KEYGUARD_SERVICE boolean..
Android: requestLocationUpdates updates location at most every 45 seconds http://stackoverflow.com/questions/9507557/android-requestlocationupdates-updates-location-at-most-every-45-seconds closer to the target. So when the user is within say 1 km of the target I want the location to be updated every 20 seconds..
Android Maps API v2 draw circle http://stackoverflow.com/questions/13991301/android-maps-api-v2-draw-circle able to draw right circle private void addCircle LatLng latLng double radius double R 6371d earth's mean radius in km double d radius R radius given in km double lat1 Math.toRadians latLng.latitude double lon1 Math.toRadians latLng.longitude.. void addCircle LatLng latLng double radius double R 6371d earth's mean radius in km double d radius R radius given in km double lat1 Math.toRadians latLng.latitude double lon1 Math.toRadians latLng.longitude PolylineOptions options new PolylineOptions..
Highlight a specified route on Google Maps v2 Android http://stackoverflow.com/questions/14760723/highlight-a-specified-route-on-google-maps-v2-android sensor false between two roads I get the following JSON response output for one road along route . distance text 0.2 km value 203 duration text 1 min value 18 end_location lat 53.435250 lng 6.132140000000001 html_instructions..
Get the shortest distance from a point http://stackoverflow.com/questions/18420419/get-the-shortest-distance-from-a-point Also Note this assumes your grids are equal unlike my hand drawn example. Option 2 If you expect a result within X km and you want something your DB will calculate quickly you can do this LatMin currentLatCoord radiusValInDegrees LatMax currentLatCoord..
How to calculate distance from different markers in a map and then pick up the least one http://stackoverflow.com/questions/19218081/how-to-calculate-distance-from-different-markers-in-a-map-and-then-pick-up-the-l 'Chennai' 13.052414 80.250825 'Kolkata' 22.572646 88.363895 from math import sin cos atan2 sqrt EARTH_RADIUS 6373 # km def distance a b # pass tuples lat1 lon1 a lat2 lon2 b dlon lon2 lon1 dlat lat2 lat1 a sin dlat 2 2 cos lat1 cos lat2 sin.. locations.iteritems d distance current cordinates if closest is None or d closest closest d closest_name name print ~ dkm s distance current cordinates name print nClosest location is s d km away. closest_name closest Output ~5700km Kolkata ~13219km.. or d closest closest d closest_name name print ~ dkm s distance current cordinates name print nClosest location is s d km away. closest_name closest Output ~5700km Kolkata ~13219km Chennai ~12159km Bangalore ~7928km Delhi ~10921km Mumbai Closest..
Adding distance to a GPS coordinate http://stackoverflow.com/questions/2839533/adding-distance-to-a-gps-coordinate lon lon0 180 pi dx 6378137 cos lat0 This is quite precise as long as the random distance offset is below 10 100 km Edit of course in Java Math.cos expects radians so do use Math.cos Math.PI 180.0 lat0 if lat0 is in degrees as assumed above...
How to find Hospital Location near by my location? http://stackoverflow.com/questions/4291573/how-to-find-hospital-location-near-by-my-location ˜as the crow flies distance between the points ignoring any hills . Haversine formula R earth ™s radius mean radius 6 371km lat lat2 lat1 long long2 long1 a sin² lat 2 cos lat1 .cos lat2 .sin² long 2 c 2.atan2 ša 1 ’a d R.c Note that angles need.. long 2 c 2.atan2 ša 1 ’a d R.c Note that angles need to be in radians to pass to trig functions . JavaScript var R 6371 km var dLat lat2 lat1 .toRad var dLon lon2 lon1 .toRad var a Math.sin dLat 2 Math.sin dLat 2 Math.cos lat1.toRad Math.cos lat2.toRad..
Get Latitude and Longitude without inserting Sim Card and Start/Stop Gps from Application http://stackoverflow.com/questions/4375913/get-latitude-and-longitude-without-inserting-sim-card-and-start-stop-gps-from-ap that GPS satellites are enabled in the phone's settings check that you are not indoors signals from satellites 20 000 km above do not like roofs and walls Then start your app and wait there can be a few minutes before the first fix is available...
Android: How do I set the zoom level of map view to 1 km radius around my current location? http://stackoverflow.com/questions/6002563/android-how-do-i-set-the-zoom-level-of-map-view-to-1-km-radius-around-my-curren How do I set the zoom level of map view to 1 km radius around my current location I want to set the map view zoomed to 1km radius but cant figure out how The doc says.. do I set the zoom level of map view to 1 km radius around my current location I want to set the map view zoomed to 1km radius but cant figure out how The doc says that the zoom level 1 will map earths equator to 256 pixels. So how do I calculate..
Wake the device up when app prompts user http://stackoverflow.com/questions/6445844/wake-the-device-up-when-app-prompts-user v.vibrate 300 PowerManager pm PowerManager getSystemService Context.POWER_SERVICE KeyguardManager km KeyguardManager getSystemService Context.KEYGUARD_SERVICE WakeLock wl null if pm.isScreenOn KeyguardLock kl km.newKeyguardLock.. km KeyguardManager getSystemService Context.KEYGUARD_SERVICE WakeLock wl null if pm.isScreenOn KeyguardLock kl km.newKeyguardLock TAG kl.disableKeyguard wl pm.newWakeLock PowerManager.SCREEN_BRIGHT_WAKE_LOCK PowerManager.ACQUIRE_CAUSES_WAKEUP..
Gettting Different Distance When Using the Google Map and User defined Function http://stackoverflow.com/questions/7696112/gettting-different-distance-when-using-the-google-map-and-user-defined-function Using the Google Map and User defined Function I want to get the Distance between two latitude and longitude in meter km . So i am using the below function . It gives me the different result than the google Map. Can you help me to solve my problem..
How to find the screen is locked in android http://stackoverflow.com/questions/9002032/how-to-find-the-screen-is-locked-in-android you receive Intent.ACTION_SCREEN_ON you can check if the screen is locked by using the below codes KeyguardManager km KeyguardManager getSystemService Context.KEYGUARD_SERVICE boolean locked km.inKeyguardRestrictedInputMode share improve..
Android: requestLocationUpdates updates location at most every 45 seconds http://stackoverflow.com/questions/9507557/android-requestlocationupdates-updates-location-at-most-every-45-seconds and these intervals should get smaller as the user comes closer to the target. So when the user is within say 1 km of the target I want the location to be updated every 20 seconds and so on until the user arrives. Problem When I test it..
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