Questions tagged [r-leaflet]
This R package makes it easy to integrate and control the open-source JavaScript Leaflet software in R.
r-leaflet
320
questions with no upvoted or accepted answers
9
votes
0
answers
242
views
Increase size of rleaflet map in Jupyter Lab display (R in Jupyter)
When using R and rleaflet in a Jupyter Lab Notebook. My output map is short and wide with a vertical scroll box, and I can find no means of increasing it's height.
# Code to reproduce
library(leaflet)...
- 474
6
votes
2
answers
1k
views
How to upload a shapefile into a Shiny app?
I am trying to figure out how, using Shiny App, a user can submit a shapefile via fileInput and then map it on a leaflet basemap. I am stuck on the server.R script and unsure how to handle the user ...
- 460
5
votes
1
answer
376
views
raster and polygons in leaflet, without raster interpolation
I'm trying to display several layers in leaflet (or mapview), one of which is a raster in EPSG:27700. The only way I manage to adequately overlay those layers is through the default latlong projection,...
5
votes
0
answers
2k
views
Why have I lost ability to use mapshot
I've been using mapshot a lot to send interactive maps of data but recently, although I can make the maps I want with mapview, I can't save them.
Example:
map<- mapview(mapdata, zcol = "...
- 51
5
votes
0
answers
265
views
Zoom shiny leaflet world map to full width
Does anyone know how to set default render zoom of a Shiny Leaflet map so a full world map zooms to fit the window width (i.e. -180° to 180° properly fits the window)? I can only set zoom to integers,...
- 23.3k
5
votes
0
answers
247
views
Using SelectAreaFeature plugin with Leaflet for R
I am trying to use the SelectAreaFeature Leaflet JS plugin with Leaflet for R.
I have had success using other Leaflet JS plugins, but not the SelectAreaFeature plugin.
Here is an MRE (requires the ...
- 536
5
votes
0
answers
449
views
How to project a raster + polygons in Lambert 93 with leaflet on R?
I'm trying to make a leaflet map in Lambert 93 (st_transform(2154)) composed of:
1. Polygons (France)
2. Raster Layer (Europe)
I can't understand why the following code is not working.
library(...
- 236
5
votes
0
answers
5k
views
Sort legend (for colorFactor) using leaflet package (RStudio) in Shiny App
I'm deploying a shinyapp using the new leaflet package developed by RStudio. There doesn't appear to be much documentation online about some elements - in my case, I need to specify the order in which ...
- 2,763
4
votes
0
answers
140
views
Shinylive app doesn't render leaflet map tiles
I am trying to move an r-Shiny app onto a website using the shinylive package. The app is exported to HTML and it is functional, except that a leaflet map that is embedded in the site does not render ...
- 410
4
votes
0
answers
831
views
How to change legend text formatting in Leaflet in R?
I've created a leaflet map and I'm trying to figure out how I can change the formatting of the legend labels. I currently have a gradient color palette to represent the data, with a set of discrete ...
- 65
4
votes
0
answers
822
views
R Shiny addPolygons fails in leafletproxy but works in leaflet()
I am trying to create a leaflet map that adds and removes a polygon layer (SpatialDataFrame) based on changing user inputs into a flexdashboard Shiny App. The geometry of the polygons (4201 polygons) ...
- 563
4
votes
0
answers
204
views
remove mapedit features programmatically
With mapedit it is possible to clear drawn features using the 'trash' icon built into the drawbar UI. It is also possible to clear features associated with the leaflet map using clearMarkers() and ...
- 3,159
4
votes
0
answers
445
views
Make Shiny Leaflet recognise a map created from an externally hosted JS file
I would like to use Shiny Leaflet to render an already existing leaflet map, but problems arise since the initial map is created from an externally hosted (rather complicated) JS file, which I do not ...
- 59
4
votes
0
answers
900
views
R leaflet map, add button that expands on hover and shows some text
Expanding on an example from addEasyButton in RStudios leaflet package, I wonder if it is possible to create a button that automatically expands on hover to show some text?
Something like the code ...
- 5,814
4
votes
1
answer
1k
views
Show Polylines when mouse hover on Circles in leaflets in R
I have a flow Map - using leaflets in R
library(leaflet)
m <- leaflet(AM_Peak) %>%
addTiles('http://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png',
attribution='Map tiles by <a href="...
- 4,325