Leaflet | 🍃 JavaScript library for mobile-friendly interactive maps

by Leaflet JavaScript Version: 1.9.4 License: BSD-2-Clause

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | Leaflet Summary

Leaflet is a JavaScript library. Leaflet has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can install using 'npm i zv-leaflet' or download it from GitHub, npm.

Leaflet was created 11 years ago by Vladimir Agafonkin, an Ukrainian citizen living in Kyiv. Vladimir is no longer in Kyiv, because Russian bombs are falling over the city. His family, his friends, his neighbours, thousands and thousands of absolutely wonderful people, are either seeking refuge or fighting for their lives. The Russian occupation of Ukraine contravenes and violates several international laws, including the United Nations Charter. It is an unprovoked, unjustifiable, and despicable action that endangers countless civilians.

Support

Quality

Security

License

Reuse

Support

Leaflet has a medium active ecosystem.

It has 37726 star(s) with 5635 fork(s). There are 900 watchers for this library.

There were 1 major release(s) in the last 12 months.

There are 364 open issues and 4669 have been closed. On average issues are closed in 44 days. There are 119 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of Leaflet is 1.9.4

Quality

Leaflet has 0 bugs and 0 code smells.

Security

Leaflet has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

Leaflet code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

Leaflet is licensed under the BSD-2-Clause License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

Leaflet releases are available to install and integrate.

Deployable package is available in npm.

Leaflet saves you 127909 person hours of effort in developing the same functionality from scratch.

It has 178480 lines of code, 0 functions and 253 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed Leaflet and discovered the below as its top functions. This is intended to give you an instant insight into Leaflet implemented functionality, and help decide if they suit your requirements.

Convert a GeoJSON geometry into a Map .
Adds a single double click event listener .
Adds one event handler .
The double click event handler
Clones a polygon .
Opens a dialog
clip - line clipping
Removes all handlers from the given object .
Call fn only once per time
Get the intersection point for a line .

Get all kandi verified functions for this library.

Leaflet Key Features

No Key Features are available at this moment for Leaflet.

Leaflet Examples and Code Snippets

No Code Snippets are available at this moment for Leaflet.

Community Discussions

Trending Discussions on Leaflet

The unauthenticated git protocol on port 9418 is no longer supported

Adding a 'click' event to leaflet polygons via R

Issue when several users are saving data in postgresql database with Rshiny (many duplicates of an unique row are created)

How to create maps based on conditional panel in R with Shiny?

Import data from a leaflet map as an sf object in R

Cluster geojson Layer doesn't work with marker filtering

Vue leaflet doesn't work when building app

How do I click on this item using Selenium?

R & Leaflet: how to bind a client-side event to a polygon

On flexdashboard, leafgl points are invisible until we pan or zoom

QUESTION

The unauthenticated git protocol on port 9418 is no longer supported

Asked 2022-Mar-27 at 13:23

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 07:01

First, 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:

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.

For GitHub Actions:

As in actions/checkout issue 14, you can add as a first step:

Source https://stackoverflow.com/questions/70663523

QUESTION

Adding a 'click' event to leaflet polygons via R

Asked 2022-Mar-16 at 22:50

How can I add a mouse 'click' event to each polygon plotted on a leaflet map? I want to do this so I can then filter a separate widget based on data from the features (in this case WD21CD).

...

ANSWER

Answered 2022-Mar-16 at 22:50

We can use htmlwidgets::onRender to pass custom JS code to the leaflet htmlwidget.

With the help of the eachLayer method we can add an on-click function to each polygon layer:

Source https://stackoverflow.com/questions/71459567

QUESTION

Issue when several users are saving data in postgresql database with Rshiny (many duplicates of an unique row are created)

Asked 2022-Mar-08 at 09:57

I need some clarification on how to properly send queries to my database within RShiny...

I have build-up an application in which anyone can create an account and then write some informations in a dataframe before saving those rows to my database.

The app works perfectly well when testing my it with a single user but shows some issues when several users send data to my database at the same time. All the informations sends are duplicated 2 to 10 times in postgresql...

For instance if I add an unique observation of 5 individuals of species "A" with an observation date on the 25th of february I will get 3 rows (sometimes it can be up to 10 duplicates) in my database instead of one. (like shown in the table below):

...

ANSWER

Answered 2022-Mar-08 at 09:57

Below please find a reproducible example using library(RSQLite) - just switch back to your postgres connection / schema.

I don't think the issue is pool related. I guess (I can't verify without your DB) your call to rbind is problematic - as it sends multiple lines if the reactiveVal was used before.

Furthermore, in a case like this it is much more efficient to create a cross-session reactive (here reactivePoll) to share the DB information among sessions, instead of having each session query the DB every second.

Source https://stackoverflow.com/questions/71348264

QUESTION

How to create maps based on conditional panel in R with Shiny?

Asked 2022-Feb-25 at 22:47

I am trying to create several leaflet maps based on what the user select. I tried to produce a reproducible example. I have a sf with four shapes (i.e., representing four counties in NC). The user can choose to plot one to four maps based on the choice of the county (made through the "checkboxGroupInput". If the user select one county, I should plot one map representing the county the user selected. If the user selected two counties, two maps should be plotted, etc.

I got several lines of code but I could not connect the user selection to my map. Below you can find what I tried to do. Thanks for any help.

...

ANSWER

Answered 2022-Feb-25 at 22:47

Interesting question. I would use a rather different approach to get the job done. Instead of creatign that many conditional panels, I would write a function that creates a collection of columns depending on the number of counties selected.

Source https://stackoverflow.com/questions/71180482

QUESTION

Import data from a leaflet map as an sf object in R

Asked 2022-Feb-15 at 21:50

I want to import data as an sf object in R from a leaflet map. The map is this site: https://erickgn.github.io/mapafc/ I also have the HTML from the map as following:https://raw.githubusercontent.com/erickgn/mapafc/main/index.html.

...

ANSWER

Answered 2022-Feb-15 at 21:50

I also have the HTML from the map as following:https://raw.githubusercontent.com/erickgn/mapafc/main/index.html.

Then you have everything. Either save the page locally, either scrap it using xml2 package. If you look on the page source, you can find something like:

Source https://stackoverflow.com/questions/71130359

QUESTION

Cluster geojson Layer doesn't work with marker filtering

Asked 2022-Jan-13 at 17:19

I'm doing a Leaflet map with some GeoJSON data.

I try to add the cluster function to my JS file. As I added some filter and styling features according to properties, I'm unable to find the right way to code the cluster fonction.

Here is the GeoJSON layer and the filter verificator:

...

ANSWER

Answered 2022-Jan-13 at 17:19

Once you have populated your Leaflet GeoJSON Layer Group (typically with geojsonLayer.addData(geoJsonObject), then instead of adding that group to your map, simply add it into your MarkerClusterGroup:

Source https://stackoverflow.com/questions/70686232

QUESTION

Vue leaflet doesn't work when building app

Asked 2022-Jan-03 at 12:00

I'm currently creating a vue3 cli app that uses vue-leaflet (the vue3 compatible version)

Everything works great on my local dev environment but once my app is built the map doesn't load, even when I resize like this thread explains well.

I tried using the leafletObject.invalidateSize() method but nothing changed.

My map is a component called using a v-if on first call (switch between a list view and the map) and a v-show once it has been initialized

...

ANSWER

Answered 2022-Jan-03 at 12:00

Rather looks like the Leaflet CSS is incorrectly loaded in your production bundle: tiles are scrambled up, no zoom and attribution controls.

Source https://stackoverflow.com/questions/70563401

QUESTION

How do I click on this item using Selenium?

Asked 2021-Dec-16 at 00:19

Im trying to automate the download of report using selenium. To get to the page where the report is I have to click on an image with this code

...

ANSWER

Answered 2021-Dec-15 at 21:37

Remember that driver.find_elements_by_class_name() returns a list.

You have to do something like this when using this get/find method:

Source https://stackoverflow.com/questions/70370530

QUESTION

R & Leaflet: how to bind a client-side event to a polygon

Asked 2021-Dec-11 at 09:03

Here is a simple shiny app:

...

ANSWER

Answered 2021-Dec-11 at 09:03

As mentioned in the comments we can use htmlwidgets::onRender to pass custom JS.

With the help of the eachLayer method we can add an on-click function to each polygon layer (also see this related answer):

Source https://stackoverflow.com/questions/70286037

QUESTION

On flexdashboard, leafgl points are invisible until we pan or zoom

Asked 2021-Nov-30 at 00:27

Upon load, WebGL points are invisible until we pan or zoom. How can I make them visible immediately on load?

Upon load no points appear:

After pan or zoom points appear:

The code below can be pasted into an Rmd and knit:

...

ANSWER

Answered 2021-Nov-30 at 00:27

As has been commented, There seems to be an issue with flexdashboard in R 4.1. It does work (on MacOS) with R 3.6. I'd suggest filing an issue on their GitHub repo.

Besides downgrading R, you could also "automatically" zoom in at the beginning and use flyTo() instead of setView().

Both solutions are rather hot fixes but I am afraid that the core problem must be fixed by flexdashboard itself.

Source https://stackoverflow.com/questions/70088872

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Leaflet

You can install using 'npm i zv-leaflet' or download it from GitHub, npm.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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