In my opinion, the force layout is unsuitable for the purpose of placing labels on a map. The reason is simple — labels should be as close as possible to the places they label, but the force layout has nothing to enforce this. Indeed, as far as the simulation is concerned, there is no harm … Read more
try map.keySet() and if you want an array: map.keySet() as String[]; // thx @tim_yates Or, more groovy-ish: map.each{ key, value -> print key; } Warning: In Jenkins, the groovy-ish example is subtly broken, as it depends on an iterator. Iterators aren’t safe in Jenkins Pipeline code unless wrapped in a @NonCPS function.
If you want to remove all the current layers (markers) in your group you can use the clearLayers method of L.markerClusterGroup(). Your reference is called markers so you would need to call: markers.clearLayers();
You are half way there. All you need to do is to get the map bounds and then extract (and properly use) the coordinates of the corners. var bounds = map.getBounds(); var ne = bounds.getNorthEast(); // LatLng of the north-east corner var sw = bounds.getSouthWest(); // LatLng of the south-west corder You get north-west and … Read more
It sounds like you may be making the API call server side. I ran into this issue earlier today. Since you’ve placed a referrer restriction on your API key, it will be limited to executing on the browser with the web service APIs, including the Geocoding API. It didn’t work for me even when manually … Read more
The answers to Haversine Formula in Python (Bearing and Distance between two GPS points) provide Python implementations that answer your question. Using the implementation below I performed 100,000 iterations in less than 1 second on an older laptop. I think for your purposes this should be sufficient. However, you should profile anything before you optimize … Read more
To answer your question in one sentence: Per default, Maps don’t have a last entry, it’s not part of their contract. And a side note: it’s good practice to code against interfaces, not the implementation classes (see Effective Java by Joshua Bloch, Chapter 8, Item 52: Refer to objects by their interfaces). So your declaration … Read more
The reason for your confusion is that plus is not a mutating operator, meaning that it works on (read-only) Map, but does not change the instance itself. This is the signature: operator fun <K, V> Map<out K, V>.plus(pair: Pair<K, V>): Map<K, V> What you want is a mutating operator set, defined on MutableMap: operator fun … Read more
The Mercator map projection is a special limiting case of the Lambert Conic Conformal map projection with the equator as the single standard parallel. All other parallels of latitude are straight lines and the meridians are also straight lines at right angles to the equator, equally spaced. It is the basis for the transverse and … Read more