geolocation

问题 I have a code but the problem is the watchposition() is relaoding the full map,not only the position,what i want is when i zoom even if position changes it will just change the marker to that position <p id="demo">Click the button to get your position:</p> <button onclick="getLocation()">Try It</button> <div id="mapholder"></div> <script src="http://maps.google.com/maps/api/js?sensor=false"></script> <script> var x = document.getElementById("demo"); function getLocation() { if (navigator

问题 Here are two records: Ryan Restaurant: 'location' => [ 'lat' => 72.1909090, 'lon' =>19.123456], 'name' => Ryan Restaurant, 'type' => 'restaurant' Play Restaurant: 'location' => [ 'lat' => 72.1900010, 'lon' =>19.9645673], 'name' => Play Restaurant, 'type' => 'restaurant' Ashita Singh: 'location' => [ 'lat' => 0.0000000, 'lon' =>0.000000], 'name' => Ashita Singh, 'type' => 'homemade' How to display all the documents which have lat and long as 0.00 and documents which lie within 5km? Is it

问题 Here are two records: Ryan Restaurant: 'location' => [ 'lat' => 72.1909090, 'lon' =>19.123456], 'name' => Ryan Restaurant, 'type' => 'restaurant' Play Restaurant: 'location' => [ 'lat' => 72.1900010, 'lon' =>19.9645673], 'name' => Play Restaurant, 'type' => 'restaurant' Ashita Singh: 'location' => [ 'lat' => 0.0000000, 'lon' =>0.000000], 'name' => Ashita Singh, 'type' => 'homemade' How to display all the documents which have lat and long as 0.00 and documents which lie within 5km? Is it

问题 I've doing some research about getting my gps position. I'm using google maps API v2 so in order to get my current position I used this locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); List<String> providers = locationManager.getAllProviders(); Criteria criteria = new Criteria(); bestProvider = locationManager.getBestProvider(criteria, false); Location location = locationManager.getLastKnownLocation(bestProvider); so from my understanding there is a list in the

问题 I want to build a tool which allows me to search and locate my database (longitude and latitude users ), within a certain radius. i already have a googlemaps API key. Is there a ready made tool or API ?. Any tips or suggestions? here is my laravel code, so far i have fetched my db users as markers in map. #map { height: 50%; } html, body { height: 100%; margin: 0; padding: 0; } </style> <div id="map"></div> <script> key=YOUR_API_KEY&libraries=places"> let users = ; console.log(users);

问题 I want to build a tool which allows me to search and locate my database (longitude and latitude users ), within a certain radius. i already have a googlemaps API key. Is there a ready made tool or API ?. Any tips or suggestions? here is my laravel code, so far i have fetched my db users as markers in map. #map { height: 50%; } html, body { height: 100%; margin: 0; padding: 0; } </style> <div id="map"></div> <script> key=YOUR_API_KEY&libraries=places"> let users = ; console.log(users);

问题 Is there any headless browser that support geolocation? I know Phantomjs doesn't support that feature. If no, how programs that uses geolocation (prey project & lockit tight) work? I'm interested in client-side geolocation using WiFi positioning & triangulation. Can any moderator create a tag for WiPS (Wi-Fi Positioning System), if it's appropriate? 回答1: IP Geolocation using IP address done from server-side works for all headless browsers because it can retrieves user IP address instantly on

问题 I would like to find an optimal way to store a the information from a large data file (up to 1.5 GB) containing location data coordinates . The file contains also additional information on the location such as: location name, location icon. I need to be able to query the datastructure based on the current user location and retrieve "n" nearest locations (where n is usually a relatively small number, such as 30) to the current user location. I have read some post suggesting to use a "grid"

问题 I have seen many examples in various programming languages that are using the Douglas-Peucker polyline simplification algorithm to produce a GPolyline to be used on Google Maps. The algorithm, when expressed for polylines on a plan, involves the calculation of the distance between a point and a line (passing through two other points). Now all the examples I have seen so far are applying the algorithm in a very naïve way, simply by replace x and y by the latitude and longitude. This may

问题 I have this html page: <!DOCTYPE html> <html> <head> <title>Geolocation test</title> </head> <body> <script type="text/javascript"> navigator.geolocation.getCurrentPosition(function (position) { alert(position.coords.latitude + ',' + position.coords.longitude); }, function (error) { alert(error.code); }, {enableHighAccuracy: true, maximumAge: 0}); </script> </body> Works on: Samsung Galaxy 3 Google Chrome Samsung Galaxy 3 native web browser Chrome Desktop. Doesnt works on: Samsung Galaxy S2