react-leaflet | React components for Leaflet maps | Map library
kandi X-RAY | react-leaflet Summary
kandi X-RAY | react-leaflet Summary
React components for Leaflet maps.
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react-leaflet Key Features
react-leaflet Examples and Code Snippets
Lines of Code : 40
License : No License
Copyimport React, { Component } from 'react'
import { Map } from 'react-leaflet'
import './App.css'
import 'leaflet/dist/leaflet.css'
import L from 'leaflet'
import LayerGl from "./lib";
import world from './world.json';
class App extends Component {
import Choropleth from 'react-leaflet-choropleth'
import { Map } from 'react-leaflet'
const style = {
fillColor: '#F28F3B',
weight: 2,
opacity: 1,
color: 'white',
dashArray: '3',
fillOpacity: 0.5
}
const map = (geojson) => import React from 'react';
import { Map, Circle, TileLayer, LayersControl, FeatureGroup, Marker, Polyline } from 'react-leaflet'
import { Curve } from 'react-leaflet-curve'
const path = ['M', [50.14874640066278, 14.106445312500002],
'Q', [51.67255 import { ... useMap } from 'react-leaflet';
const map = useMap();
const zoomToFeature = ((e) => {
// update this to work with react-leaflet 3 and functional react components
map.fitBounds(e.target.getBounds());
})
import L from 'leaflet';
import { createControlComponent } from '@react-leaflet/core';
const createControlLayer = (props) => {
// Set up an instance of the control:
const controlInstance = new L.Control.Zoom(props);
return contrconst MyData = () => {
// create state variable to hold data when it is fetched
const [data, setData] = React.useState();
// useEffect to fetch data on mount
useEffect(() => {
// async function!
const getData = asyncimport React, { Component } from 'react'
import './styles/styles.css'
import {Map,TileLayer,GeoJSON} from 'react-leaflet'
import './leaflet/leaflet.css'
import Wkt from 'wicket'
import L from 'leaflet'
import Data from '../../Data/wkt_fileimport React from 'react'
import { divIcon } from 'leaflet'
import { Marker } from 'react-leaflet'
import { renderToStaticMarkup } from 'react-dom/server'
import PropTypes from 'proptypes'
import 'leaflet/dist/leaflet.css'
const Index = pimport { Map as LeafletMap, TileLayer } from "react-leaflet";
class Map extends React.Component {
componentDidMount(){
// leafletElement is the leaflet object created by any react-leaflet component
const map = this.mapReferencCommunity Discussions
Trending Discussions on react-leaflet
QUESTION
I am using React JS for making a webpage. My aim is to display a map on the front end. I am using the react-leaflet npm package for the same. However, I am getting the below error:
Error...
...ANSWER
Answered 2022-Apr-11 at 15:13It seems an important question to me. Hence, answering here for sake of completeness. This is based on this link shared by @Satya S in the comments. React leaflet v3 won't work with reactJS v18 (as of the time of writing this response, things may change later. Use this link to verify), at least when using concurrent mode. Please try version 4 alpha of React leaflet that targets version 18 of reactJS.
QUESTION
I have been using github actions for quite sometime but today my deployments started failing. Below is the error from github action logs
...ANSWER
Answered 2022-Mar-16 at 07:01First, this error message is indeed expected on Jan. 11th, 2022.
See "Improving Git protocol security on GitHub".
January 11, 2022 Final brownout.
This is the full brownout period where we’ll temporarily stop accepting the deprecated key and signature types, ciphers, and MACs, and the unencrypted Git protocol.
This will help clients discover any lingering use of older keys or old URLs.
Second, check your package.json dependencies for any git:// URL, as in this example, fixed in this PR.
As noted by Jörg W Mittag:
For GitHub Actions:There was a 4-month warning.
The entire Internet has been moving away from unauthenticated, unencrypted protocols for a decade, it's not like this is a huge surprise.Personally, I consider it less an "issue" and more "detecting unmaintained dependencies".
Plus, this is still only the brownout period, so the protocol will only be disabled for a short period of time, allowing developers to discover the problem.
The permanent shutdown is not until March 15th.
As in actions/checkout issue 14, you can add as a first step:
QUESTION
I am testing a react-leaflet based application in cypress. To avoid making tons of real maptile requests, I am trying to intercept calls to the mapbox maptile server, and replace with a dummy tile. I do this in my cypress/support.index.js file:
ANSWER
Answered 2022-Mar-25 at 20:39Since you are using Next, is the app fetching the tiles on the server before the page loads?
I know there's various switches/modes, but you made no mention of SSR so looks like you should consider that.
Without details of the app it's hard to give you code, but there's a bit of code here
that may be useful.
QUESTION
I'm using react-leaflet package to create bound animation on the map from selected markers as seen on the screenshot below.
Here is the full code: https://codesandbox.io/s/react-leaflet-marker-with-bound-869mj
The map will be bound if only the selected markers change.
I try to implement the bound animation sample code from the documentation here https://react-leaflet.js.org/docs/example-view-bounds/
As we can see from the screenshot above, the map, the markers, the rectangle, and the panel (top-right corner) are displaying and working fine.
But if we change the selected markers (through the panel), the bound animation is not working properly (not showing all of the markers).
And if we empty the selected markers (no marker is selected in the panel), the app crashes and produces an error Cannot read properties of undefined (reading 'lat').
So, my questions are:
- how could this happen?
- what is the solution?
ANSWER
Answered 2021-Oct-14 at 17:51The error Cannot read properties of undefined (reading 'lat') is because you are passing an empty array of markers to . You need at least two markers to define a rectangles corners so check that you have at least two:
QUESTION
I have a simple React app that shows bike stations on a map with Leaflet and OpenStreetMap.
I have fetched all lat and long but when I map though the array and create component, they are not appearing on map.
Instead I have this warning on browser console:
Will-change memory consumption is too high. Budget limit is the document surface area multiplied by 3 (432150 px). Occurrences of will-change over the budget will be ignored.
I see some similar questions and answers to this. It is because occurences of will-change in CSS, but I am using Leaflet library itself, so I do not know where to fix this. I also watch some similar videos on YouTube, even if we have almost same logic they did not have any problem.
MapComponent.jsx
...ANSWER
Answered 2022-Feb-23 at 02:28You probably just miss a return statement in your map callback, or to convert it into a short single expression arrow function form without the curly braces:
QUESTION
I was working on a covid application which shows covid mortality rate during all the three waves, particularly for my country India, but here the issue is while I'm trying to use leaflet package, its showing an error
...ANSWER
Answered 2022-Feb-12 at 14:04Problem is that you're trying to export function Map which has the same name as Map you assigned to LeafletMap, try to change your function name, for instance
QUESTION
I'm trying to replicate some functions of the leaflet map https://leafletjs.com/examples/choropleth/ to react/typeScript but I'm getting an error when I try to add the function to zoom on a Feature it breaks, this is the code I'm working on
...ANSWER
Answered 2022-Feb-10 at 18:20useMap can only be used within a component that is itself a child/descendant of .
https://react-leaflet.js.org/docs/api-map/#usemap
Hook providing the Leaflet Map instance in any descendant of a
MapContainer.
Here you try calling useMap in your EmployerLocationMap component, which contains a , but which is obviously not a descendant of one.
A solution for your case could be to separate the map logic in another component that you can place inside the :
QUESTION
I can't find any information wether the gatsby-plugin-react-leaflet (made for gatsby v2) is compatible with gatsby v3 or not, nor can I find any info on the build errors I get. I have tried everything ie checking if the window is defined, useHasMounted etc and nothing works. Seems to be something with this version of the plugin for gatsby. Any info would be great.
I get these errors when trying to build:
This is my the full code, if I remove the MapContainer and everything in it, Gatsby builds without problem.
...ANSWER
Answered 2022-Feb-02 at 09:11nor can I find any info on the build errors I get.
It should be compatible with v3 according to this GitHub thread where the author's pointed out the backward compatibility with v3 and v4. Try using the latest version: 3.0.3
Without further implementation details, I don't know what can be the cause of the issue.
The issue has been solved using Node 14.x and downgrading the package version to 2.7.0, a version that exposes Map instead of MapContainer wrapper.
QUESTION
Trying to run this on docker, but I get EBADENGINE unsupported engine warning (and subsquent build fail, which I assume are related at least somewhat).
Docker command (from cloned project root with package.json file):
...ANSWER
Answered 2022-Jan-26 at 14:08Okay that was dumb. But yes, to read those error message for other npm newbs out there:
QUESTION
ANSWER
Answered 2022-Jan-15 at 16:21Indeed you initially were just missing a defined height on your component.
https://react-leaflet.js.org/docs/start-setup/
If the map is not displayed properly, it is most likely because you haven't followed all the prerequisites.
[...] Make sure your map container has a defined height
Now you are just missing a Tile Layer:
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