leaflet

问题 I want to remove roads from my leaflet map in R. Is there a way to remove layers we want such as roads, lakes, state boundaries, etc.? Sample code: library(leaflet) library(plot3D) top = 45 # north lat left = -110 # west long right = -90 # east long bottom = 32 # south lat longitudes= seq(left,right, length.out = 3) latitude=seq(bottom,top,length.out = 5) latlons_mesh=mesh(longitudes,latitude) longitude=as.vector(latlons_mesh$x) latitude=as.vector(latlons_mesh$y) mydata=data.frame(longitude

问题 I want to remove roads from my leaflet map in R. Is there a way to remove layers we want such as roads, lakes, state boundaries, etc.? Sample code: library(leaflet) library(plot3D) top = 45 # north lat left = -110 # west long right = -90 # east long bottom = 32 # south lat longitudes= seq(left,right, length.out = 3) latitude=seq(bottom,top,length.out = 5) latlons_mesh=mesh(longitudes,latitude) longitude=as.vector(latlons_mesh$x) latitude=as.vector(latlons_mesh$y) mydata=data.frame(longitude

问题 I would be realy happy if some one could help me... I've installed react-leaflet on my react project and the map component is loaded successfully, i need to get current latlng and show it in the Popup when i click on map but I don't know how to :( please... please... help me... this is my code import React from 'react' import { Map as LeafletMap, TileLayer, Marker, Popup } from 'react-leaflet'; class Mapp extends React.Component { componentDidMount() { } render() { return ( <LeafletMap center

问题 I am looking to add a title to the layer control box along the lines of "Available layers". My search has lead me to only one relevant result: Exact same question using JS. Unclear how to translate My code: map %>% leaflet() %>% addProviderTiles(provider = "CartoDB") %>% # Group 1 Polygons addPolygons(data = map[!is.na(map$var),] ,weight =1, color = ~g1_pal(g1), fillOpacity = .6, group = "Group 1", # add labels label = ~labels, # highlight polygons on hover highlight = highlightOptions(weight

问题 I am looking to add a title to the layer control box along the lines of "Available layers". My search has lead me to only one relevant result: Exact same question using JS. Unclear how to translate My code: map %>% leaflet() %>% addProviderTiles(provider = "CartoDB") %>% # Group 1 Polygons addPolygons(data = map[!is.na(map$var),] ,weight =1, color = ~g1_pal(g1), fillOpacity = .6, group = "Group 1", # add labels label = ~labels, # highlight polygons on hover highlight = highlightOptions(weight

问题 I have this code that works fine, but I need to get only the icon to show and not the "balloon" with its shadow. I have tried with removing " markerColor ..." but that is only changing to the default blue marker / balloon. How to only show the icon and its size and color? pointToLayer: function(feature, latlng) { var con = feature.properties.concept; var hub; // icons for XX, YY and ZZ if (kon === 'XX') { hub = new L.marker(latlng, {icon: L.AwesomeMarkers.icon({icon: 'truck', prefix: 'fa',

问题 Is there a way to display a map for a given area completely offline using HTML and JavaScript? I am looking for a mobile-friendly (read Cordova-enabled) solution. 回答1: There is an elegant solution for this problem in this blog post. I have compiled a full code example from it. Here are the steps: 1. Create map tiles download Mobile Atlas Creator create a new atlas with OSMdroid ZIP format make map and zoom selection, add your selection to the atlas click "Create atlas" unzip the atlas file

问题 Is there a way to display a map for a given area completely offline using HTML and JavaScript? I am looking for a mobile-friendly (read Cordova-enabled) solution. 回答1: There is an elegant solution for this problem in this blog post. I have compiled a full code example from it. Here are the steps: 1. Create map tiles download Mobile Atlas Creator create a new atlas with OSMdroid ZIP format make map and zoom selection, add your selection to the atlas click "Create atlas" unzip the atlas file

问题 Is there a way to display a map for a given area completely offline using HTML and JavaScript? I am looking for a mobile-friendly (read Cordova-enabled) solution. 回答1: There is an elegant solution for this problem in this blog post. I have compiled a full code example from it. Here are the steps: 1. Create map tiles download Mobile Atlas Creator create a new atlas with OSMdroid ZIP format make map and zoom selection, add your selection to the atlas click "Create atlas" unzip the atlas file

问题 Is there a way to display a map for a given area completely offline using HTML and JavaScript? I am looking for a mobile-friendly (read Cordova-enabled) solution. 回答1: There is an elegant solution for this problem in this blog post. I have compiled a full code example from it. Here are the steps: 1. Create map tiles download Mobile Atlas Creator create a new atlas with OSMdroid ZIP format make map and zoom selection, add your selection to the atlas click "Create atlas" unzip the atlas file