mapbox

问题 There are numerous online resources which provide JavaScript APIs to access their services. To be more clear, I will base my question on the example of MapBox, but this applies well to many other services in various domains. When someone wants to use such a service in a web application (like the map imagery from MapBox for example), they typically need to Register/Sign Up and obtain an access token to access the service. Now, if I would use the API from the server side - there is no issue: I

问题 I am trying to draw circle which colour depends on a "group" attribute in my geojson. I followed a simple example with these colours: map.addSource("data", { type: "geojson", data: url, cluster: true, clusterMaxZoom: 12, // Max zoom to cluster points on clusterRadius: 20 // Radius of each cluster when clustering points (defaults to 50) }); map.addLayer({ 'id': 'population', 'type': 'circle', 'source': 'data', 'paint': { // make circles larger as the user zooms from z12 to z22 'circle-radius':

问题 I know that similar questions have been asked here before but none of them really answered my question and I am under pressure to finish my project by a deadline. Basically I am writing an application that will show online and offline maps. I am currently using MapBox SDK for the viewing of both offline and online maps, however, MapBox does not currently offer a routing solution. So I am looking for a way to do it. The main problem seems to be that there isn't just one SDK that will offer

问题 How do I set view to see all markers on map in Mapbox or Leaflet ? Like Google Maps API does with bounds ? E.g: var latlngbounds = new google.maps.LatLngBounds(); for (var i = 0; i < latlng.length; i++) { latlngbounds.extend(latlng[i]); } map.fitBounds(latlngbounds); 回答1: var group = new L.featureGroup([marker1, marker2, marker3]); map.fitBounds(group.getBounds()); See the documetation for more info. 回答2: The 'Answer' didn't work for me some reasons. So here is what I ended up doing: ////var