maps

问题 i have read in the premium user guide that we can download a small amount of map with MapDataPrefetcher. i use a Mapfragment to show the map in my app, and it says that the MapEngine is automatically initialized by using MapFragment. the problem is that i can't understand how to apply the methods and where i need to initialize the request for downloading the bounding box itself. its not so clear in the user guide. if someone here can help me with that problem or send an example of the

问题 I have multiple locations that I am displaying on HERE maps in my Android app. There are in all 4 markers, out of which 3 markers are in one city and 1 is in another city. Currently, my map zooms to a level where only the 3 markers in one city are visible, whereas the 4th one is not visible. In order to see that marker, I have to zoom out a considerable level. Is there a way, I can show all the markers within the bounds of the map? Here is my code:- m_map = mapFragment.getMap(); m_map

问题 I'm implementing an iOS Map View. I set up Google Search Api to implement a places search. I used cocoapods like this pod 'Google' , '~> 1.2.1' pod 'GoogleMaps', '~> 1.11.0' When the user searches for some keywords I get a list of GMSPlace . When the user selects on of the GMSPlace objects, I run this code to get the coordinates. placesClient?.lookUpPlaceID(placeID, callback: { (place: GMSPlace?, error: NSError?) -> Void in if let place = place { print("Place name \(place.name)") print("Place

问题 I am trying to plot these countries from a dataframe called data : country value lon lat 1 Denmark 12 9.501785 56.263920 2 UK:Great Britain 13 -1.174320 52.355518 3 France 15 2.213749 46.227638 4 Germany 17 10.451526 51.165691 5 China:Hong Kong 18 114.174695 22.278315 6 Netherlands 31 5.291266 52.132633 7 New Zealand 32 174.885971 -40.900557 8 UK:Northern Ireland 33 -6.492314 54.787715 9 Norway 34 8.468946 60.472024 10 Saudi Arabia 40 45.079162 23.885942 11 Serbia 41 21.005859 44.016521 12

问题 I am trying to set up a new application to use a google map. I got the api key from another teammate who did the set up. I am wondering if there's a utility or some other way to check if the api key he gave me is valid. I am getting the following console error when running my application using the api key he gave me: Google Maps JavaScript API warning: NoApiKeys https://developers.google.com/maps/documentation/javascript/error- messages#no-api-keys xw.m @ util.js:219 (anonymous) @ js?key [key

问题 I am trying to set up a new application to use a google map. I got the api key from another teammate who did the set up. I am wondering if there's a utility or some other way to check if the api key he gave me is valid. I am getting the following console error when running my application using the api key he gave me: Google Maps JavaScript API warning: NoApiKeys https://developers.google.com/maps/documentation/javascript/error- messages#no-api-keys xw.m @ util.js:219 (anonymous) @ js?key [key

问题 I am trying to set up a new application to use a google map. I got the api key from another teammate who did the set up. I am wondering if there's a utility or some other way to check if the api key he gave me is valid. I am getting the following console error when running my application using the api key he gave me: Google Maps JavaScript API warning: NoApiKeys https://developers.google.com/maps/documentation/javascript/error- messages#no-api-keys xw.m @ util.js:219 (anonymous) @ js?key [key

问题 How do I disable mouse interactions or scrolling in an open maps iframe ? I have the following and I put the attribute scrollwheel="false" Is there a way via css that can disable scrolling or interactions via css? <iframe id= "mapsource" scrollwheel="false" src="http://www.openstreetmap.org/export/embed.html?bbox=-123.21233510971068%2C49.260691198361066%2C-123.18484783172607%2C49.27329289319553&layer=mapquest&marker=49.26699244809891%2C-123.19858074188232"></iframe> I am open to other options

问题 How do I disable mouse interactions or scrolling in an open maps iframe ? I have the following and I put the attribute scrollwheel="false" Is there a way via css that can disable scrolling or interactions via css? <iframe id= "mapsource" scrollwheel="false" src="http://www.openstreetmap.org/export/embed.html?bbox=-123.21233510971068%2C49.260691198361066%2C-123.18484783172607%2C49.27329289319553&layer=mapquest&marker=49.26699244809891%2C-123.19858074188232"></iframe> I am open to other options

问题 How do I disable mouse interactions or scrolling in an open maps iframe ? I have the following and I put the attribute scrollwheel="false" Is there a way via css that can disable scrolling or interactions via css? <iframe id= "mapsource" scrollwheel="false" src="http://www.openstreetmap.org/export/embed.html?bbox=-123.21233510971068%2C49.260691198361066%2C-123.18484783172607%2C49.27329289319553&layer=mapquest&marker=49.26699244809891%2C-123.19858074188232"></iframe> I am open to other options