leaflet

问题 I found a function I can use in a Leaflet project I’m working. The function is written is ES6 and it works great in both Firefox and Chrome. However, I need to target IE as well. In my research I found IE at present don't accept the ES6 Arrow function. I also I found if the ES6 function was converted to ES5, the function will work in IE. For days now I tried to convert the following function to ES5 but to no prevail. Some of the solutions I tried were found posted here. Can some please look

问题 I found a function I can use in a Leaflet project I’m working. The function is written is ES6 and it works great in both Firefox and Chrome. However, I need to target IE as well. In my research I found IE at present don't accept the ES6 Arrow function. I also I found if the ES6 function was converted to ES5, the function will work in IE. For days now I tried to convert the following function to ES5 but to no prevail. Some of the solutions I tried were found posted here. Can some please look

问题 I asked a question on the following page, but I will post it again. In shiny + leaflet, setview is updated every time render is executed. I want to prevent this We are currently creating maps using shiny and leaflet. The shp file is projected on the map. shp file →　https://drive.google.com/file/d/1ji2J0vwEE9y8F0kNujmMoKPrf1IWZ7-x/view?usp=sharing I want to show / hide this shp file by setting the size of the area and the length of the circumference with sliderInput etc. The sample code is as

问题 I'm making SPA website based on net.core 3 and Angular 8 with Leaflet. I wanted to use Leaflet Extra Markers but can't get this thing to work. I used NPM to install Extra Markers: https://www.npmjs.com/package/leaflet-extra-markers npm i leaflet-extra-markers So far so good. I create component - map.component.ts and below is the code. As long as I use Leaflet only everything is working fine. But then I try to add marker using Extra Markers and getting TypeError: Cannot read property 'icon' of

问题 Is it possible with javascript to generate random latitude and longitude based on the user current position? I want to generate some random latitude and longitude positions after that the user is geolocated to place some markers on a leaflet map. 回答1: Yes you can, Code below: var latBounds = [-122, -77]; var lngBounds = [30, 50]; var features = []; for( var i=0; i<80000; i++ ){ var lat = Math.random() * (latBounds[1]- latBounds[0] + 1) + latBounds[0]; var lng = Math.random() * (lngBounds[1]-

问题 I've started working on a map related project using React-Leaflet. The basemap provided by OpenStreetMap is politically incorrect wrt India, so i decided to find right geojson data and display its layer through GeoJson from 'React-Leaflet'. Right now its only showing the borders/polygons, but i want to display the name of country and state as annotation similar to OpenStreetMap's basemap. Is there a way to do this? 来源： https://stackoverflow.com/questions/65593298/annotation-of-state-and

问题 In Leaflet, I have too many marker points and I want to regroup them, I've tried the Leaflet.markercluster in Github but I don't understand. Here a part of my code, above I have php code where I collect some data : function initMap() { macarte = L.map('map').setView([lat, lon], 6); L.tileLayer('https://{s}.tile.openstreetmap.fr/osmfr/{z}/{x}/{y}.png', { attribution: 'données © <a href="//osm.org/copyright">OpenStreetMap</a>/ODbL - rendu <a href="//openstreetmap.fr">OSM France</a>', minZoom: 1

问题 I want to make a map with points and a responsive heatmap using crosstalk in R. Like this: library(crosstalk) library(leaflet) library(DT) # Wrap data frame in SharedData sd <- SharedData$new(quakes[sample(nrow(quakes), 10),]) bscols( # Create a filter input filter_slider("mag", "Magnitude", sd, column=~mag, step=0.1, width=250), leaflet(sd) %>% addTiles() %>% addMarkers() %>% addHeatmap()) ) But, as can be observed after running the code, this way doesn't get the responsive effect on the

问题 My map takes up 100% of the screen and I show the whole world when the user loads up the map. On first load I'm trying to show as much of the world as I can given these three conditions: The prime meridian at the equator is centered on the screen. The map is zoomed in enough where the area above 90deg latitude and below 90deg longitude is not shown. The map is zoomed in enough where the area on the left and the right of the map is not duplicated. Basically no two or more Alaskas or Russias.

问题 I'm developing a map application using React - Typescript - Leaflet I've used ReactLeaflet package but when I'm using it I'm facing error while compiling issues import * as React from "react"; import { MapContainer, TileLayer, Marker, Popup } from 'react-leaflet'; export default class MapsComp extends React.Component { render(){ return(<div>asdf</div>) } } It would be helpful if any one can help me in rendering the map 回答1: I just forked your project, made npm install and ran your code and