leaflet

问题 In my previous post 'Leaflet JS - changing esri shape into marker on certain zoom level ' I was able to resolve an issue which i had with the leaflet JS library and changing the polygon shapes to markers icons when hitting a certain zoom level. I was advised by 'Ivan Sanchez' to use the 'Leaflet.Deflate' plugin and this works like a charm, so now the various shapes are being transformed into markers after a certain zoomlevel, however now I'm struggling to change the default leaflet marker

问题 I've drawn a polygon and I want to draw a perpendicular line to this polygon. I found the computeOffset function of google maps api from here, but I'm using Leaflet. Is there an equivalent function in Leaflet? Here is a screenshot of drawing the polyline. I want to draw the perpendicular line that passes through the start point of the drawing polyline (the start point is marked with a marker on the screenshot). The expected result is like this. Thank you. 回答1: No, Leaflet has no equivalent.

问题 I'm trying to put a leaflet map on a bootstrap tab, but it's not working. Not showing at all or missing tiles and in the wrong position . Does anyone have an idea how to fix that? This is an example of the problem: missing tiles This is my code: https://gist.github.com/h3kr/991ac0ee5a88d0cecba27e91c886675e 回答1: You forgot to include the CSS file for Leaflet. Let me quote the Leaflet docs: The latest stable Leaflet release is hosted on a CDN — to start using it straight away, place this in the

问题 When using Mapbox-gl.js in the latest chrome browser, everything works fine. When I want to use the default mapbox.js implementation, the map tiles are getting al mixed up and shown totally wrong. See screenshot I have totally no idea why this does not work with mapbox.js, while I did not experience any problem with mapbox-gl.js 回答1: Make sure you're loading the CSS files for the mapbox.js library. Tiles being arranged that way are usually a symptom of missing CSS rules. 来源： https:/

问题 I’m trying to have two spatial plots side-by-side in shiny, and I was suggested a powerful function, sync of mapview . sync allows to have multiple maps for comparison, a great feature, but unable to figure out integrating or calling its output in shiny. I have gone through ‘mapview for shiny’ and other related links mapview/shiny. The former suggested using renderMapview and mapviewOutput , however it did not work, i.e., no map being displayed. Please see the reproducible code. Also, I tried

问题 I'm working with react-leaflet package, however, if you can answer the question in plain leaflet that would be helpful as well. I am successfully panning to the bounds of a polygon that I supply like so: <Map center={position} zoom={13} bounds={this.state.bounds} className="campaignimagery-map"> <TileLayer url="http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png" attribution="" /> However, I would like the entire polygon boundary box to be some transparent color so they can see exactly where

问题 I have data coming from a Json file and I created a layer based on this Json file using markerClusterGroup. I am hitting the wall trying to do this: 1 - Select some markers based on some Json's feature ("temperatura", "salinidade","corrente", "profundidade" e "geofisico") in xbt.json and using a select list in the HTML: <select name="sometext" > <option value="temperatura">temperatura</option> <option value="salinidade">salinidade</option> <option value="corrente">corrente</option> <option

问题 I am using Leaflet JS to create a map. Have to say I'm a huge fan, Works a lot smoother than Google and Bing too. Also like the customisation you can do with it. Brilliant! The only query / issue I have is the big lines it draws blue (or themed borders) around countries. See screenshot attached. I am wondering if there is a method to remove them? Thanks 回答1: This has nothing to do with leaflet. The lines are drawn by your tile provider. Change the source of the tiles to fit your needs.

问题 I am using Leaflet JS to create a map. Have to say I'm a huge fan, Works a lot smoother than Google and Bing too. Also like the customisation you can do with it. Brilliant! The only query / issue I have is the big lines it draws blue (or themed borders) around countries. See screenshot attached. I am wondering if there is a method to remove them? Thanks 回答1: This has nothing to do with leaflet. The lines are drawn by your tile provider. Change the source of the tiles to fit your needs.

问题 I have an issue and I'm trying to solve it sine two days, so I have a list of data retrieving from postgres database, each item of this list is associate to a checkbox, so when I click a given checkbox the corresponding layer will display on map using of course Leaflet. My purpose is to create this layers dynamically to be enable to delete each layer when I uncheck its given checkbox. When I click each checkbox I can retrieve coordinates of its associated element from database to displayed on