geolocation

Reading the GPS data from the image returned by the camera in iOS iphone

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The problem is that since iOS 4 UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage]; strips the geolocation out. To solve this problem you have to use the original photo path to get access to the full image metadata. With something like this: – (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { NSURL *referenceURL = [info objectForKey:UIImagePickerControllerReferenceURL]; ALAssetsLibrary *library = [[ALAssetsLibrary … Read more

Ruby Geolocation Gem/Plugins [closed]

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Your current best bet is probably GeoKit (http://github.com/andre/geokit-gem for gem, http://github.com/andre/geokit-rails for plugin). It has built in functionality for Yahoo and Google API keys, distance calculation helpers, reverse geolocation, etc. However, GeoMereLaal (http://github.com/parolkar/geo_mere_laal/) is based on the working draft of the W3C Geolocaton API. It’s very limited at the moment as I could only get … Read more

How do I request permission for Android Device Location in React Native at run-time?

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I solved it by changing the targetSdkVersion ( same to compileSdkVersion, in my case 23) in android/app/build.gradle. Edit AndroidManifest.xml located in android/src/main and add the <uses-permission android:name=”android.permission.ACCESS_FINE_LOCATION”/> <uses-permission android:name=”android.permission.ACCESS_COARSE_LOCATION”/> next : import { PermissionsAndroid } from ‘react-native’; and then add this method: export async function requestLocationPermission() { try { const granted = await PermissionsAndroid.request( PermissionsAndroid.PERMISSIONS.ACCESS_FINE_LOCATION, … Read more

Google maps API – Center map on client’s current location

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Try using the below code to get the user’s current location (GEOLOCATION): if (navigator.geolocation) { navigator.geolocation.getCurrentPosition(function (position) { initialLocation = new google.maps.LatLng(position.coords.latitude, position.coords.longitude); map.setCenter(initialLocation); }); } For showing an example, I’ve removed your php code. Check this JSFiddle Hope you understand.

Get altitude by longitude and latitude in Android

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My approach is to use USGS Elevation Query Web Service: private double getAltitude(Double longitude, Double latitude) { double result = Double.NaN; HttpClient httpClient = new DefaultHttpClient(); HttpContext localContext = new BasicHttpContext(); String url = “http://gisdata.usgs.gov/” + “xmlwebservices2/elevation_service.asmx/” + “getElevation?X_Value=” + String.valueOf(longitude) + “&Y_Value=” + String.valueOf(latitude) + “&Elevation_Units=METERS&Source_Layer=-1&Elevation_Only=true”; HttpGet httpGet = new HttpGet(url); try { HttpResponse … Read more

Error adding geofences in Android (status code 1000)

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You get GEOFENCE_NOT_AVAILABLE (code ‘1000’) when user disagrees to “Use Google’ location services” in Settings->Location->Mode: To fix it: go to Settings->Location->Mode set “Device only (Use GPS to determine your location)” set any other option to get the popup (e.g. “High accuracy (Use GPS, Wi-Fi and mobile networks to determine location”) dialog “”Use Google’ location services” … Read more

Get exact geo coordinates along an entire route, Google Maps or OpenStreetMap

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OSRM gives you routes with road geometries as they are in the OpenStreetMap database. For example, you can get the route as GPX (and post-process this file if you want). This would look like the following: GET http://router.project-osrm.org/viaroute?hl=en&loc=47.064970,15.458470&loc=47.071100,15.476760&output=gpx Read more: OSRM API docs.