All Questions
24
questions
1
vote
1
answer
576
views
Leaflet in R - Highlight Polygon on Click
Using the leaflet package in R, I'm looking to highlight / change fillColor of polygon upon click instead of hover.
This is in a Shiny app, so I have access to the reactive values, and knowledge of ...
- 125
4
votes
1
answer
827
views
Customizing Leaflet Map Icons in R
I started to learn how to use the search features in leaflet maps - below is a leaflet map which allows you to search for a city (i.e. single search term):
library(leaflet)
library(leaflet.extras)
...
- 5,705
1
vote
1
answer
71
views
Replacing "rdgal" with a Data Frame in R?
I found this R code (Search button for Leaflet R map?) and was able to make a interactive map in R:
library(inlmisc)
city <- rgdal::readOGR(system.file("extdata/city.geojson",
...
- 5,705
0
votes
0
answers
68
views
Saving Multiple HTML files in R
I am following this R tutorial here (towards the end of the page) : https://glin.github.io/reactable/articles/examples.html. I would like to make an interactive map that allows you to filter points on ...
- 5,705
1
vote
1
answer
197
views
Adding "Breaks" in "htmlescape"
I am following this tutorial here (https://rstudio.github.io/leaflet/popups.html):
library(htmltools)
library(leaflet)
df <- read.csv(textConnection(
"Name,Lat,Long
Samurai Noodle,47....
- 5,705
3
votes
2
answers
740
views
Combing Leaflet Maps Together
I generated these 2 random dataset about geographical coordinates (e.g. each point represents an imaginary restaurant in France):
id = 1:1000
long = 2.2945 + rnorm( 1000, 0.1085246 , 0.1)
...
- 5,705
1
vote
1
answer
27
views
Is "knitr" required for certain outputs in R?
I am trying to follow this post on stackoverflow (R Leaflet: Add a Range Slider to Filter Markers without Shiny). I copy and pasted the code below:
library( crosstalk )
library( leaflet )
library( ...
- 5,705
1
vote
1
answer
375
views
Simulating Geographical Points Around the Eiffel Tower
The coordinates of the Eiffel Tower are (Longitude: 48.8584° N, Latitude: 2.2945° E). I am interested in randomly generating 100 points that are located within a 12 KM radius of the Eiffel Tower. In ...
- 5,705
2
votes
0
answers
187
views
Restricting Zoom Options in Leaflet Maps
I followed the tutorial here (https://rstudio.github.io/leaflet/) and made this map:
library(leaflet)
m <- leaflet() %>%
addTiles() %>% # Add default OpenStreetMap map tiles
addMarkers(...
- 5,705
0
votes
0
answers
175
views
Merging Information into a Shapefile
I have a shapefile ("my_shapefile") in R.
Part 1: If I try inspecting this shapefile and check its contents by adding a "$" - there appears to be 3 parts:
head(my_shapefile$var1)
...
- 5,705
1
vote
0
answers
696
views
Learning How to Use Shapefiles in R
I am trying to learn more about "shapefiles" and how to plot them in R. Ideally, I would like to make a "leaflet map" (interactive or static) that looks something like this: https:...
- 5,705
1
vote
1
answer
350
views
R: Joining Maps Together
I am working with the R programming language.
Using the "leaflet" library, I made the following 3 maps:
#load libraries
library(dplyr)
library(leaflet)
library(geosphere)
library(leafsync)
...
- 5,705
5
votes
2
answers
1k
views
R: Connecting Dots on a Map
I am working with the R programming language.
Using the "leaflet" library, I made the following map for these 5 cities:
library(dplyr)
library(leaflet)
map_data <- data.frame("Lat&...
- 5,705
1
vote
1
answer
993
views
R: Making More "Noticeable" Labels in R Leaflet map
I made the following map in R (from a data frame with 5 points ordered from "1" to "5"):
library(dplyr)
library(leaflet)
map_data <- data.frame("Lat" = c(43.6426, 43....
- 5,705
1
vote
1
answer
124
views
Map vector group in specific order - R leaflet
I have a shapefile with polylines of routes in different years. Here is an example data shapefile with routes in the year 2000 and year 2013. I would like the map to show the older routes at the top ...
- 69
0
votes
0
answers
238
views
R: Understanding the "max" and "blur" options
I am working with the R programming language. Using the following code, I made an interactive map with the "leaflet" library :
Lat = round(runif(5000,43,44), 4)
Long = round(runif(5000,79,80)...
- 5,705
0
votes
0
answers
107
views
Can I create an embed code for an interactive choropleth map made using the leaflet package in R?
I'm new to R. I've just made a basic interactive choropleth map using the leaflet package in R:
leaflet() %>%
addProviderTiles("CartoDB.Positron") %>%
setView(-2, 55, zoom = 5) %&...
- 1
1
vote
1
answer
525
views
Interactive choropleth map with leaflet inaccurately mapping data
First post, I'll try to do my best.
I'm trying to make an interactive choropleth map with leaflet in R, based off this
tutorial. It all goes great until I compare the data represented on the map with ...
0
votes
0
answers
152
views
how to add polygons in shapefile in R
I have a few building data in shapefile. Now I want to add some small circules/rectangles/anything suitable to represent the lighting poles beside the building. How could I do that in R.
Currently I ...
- 25
5
votes
1
answer
3k
views
Add "rgb" legend to R leaflet heatmap
I made some interactive heatmaps using leaflet (particularly the addHeatmap() command from the leaflet.extras package) and shiny. Having created a desired map, I would like to add a legend to it.
...
- 51
2
votes
0
answers
865
views
leaflet legend for Custom Awesome Marker in R?
I need to add some custom marker legends to my leaflet map. So far, the closest solution I found is this. According to the solution in the link, I need to use the addControl() function.
First I ...
- 55
0
votes
1
answer
128
views
Leaflet package in R: why are the labels misplaced when plotting them with noHide=T?
I am trying to plot gas stations in Spain, and I would like the plot to show the names or brand names of each station. So far I have struggled a little bit with this, but I finally got my way around ...
- 251
1
vote
1
answer
470
views
Adding geographic polygons via readOGR / addPolygon() with Leaflet in R
I've been following this tutorial, but for some reason I can't seem to get these borough polygons to show up in leaflet. If I do
plot(boroughs)
everything works fine, you can clearly see the ...
- 659
20
votes
2
answers
29k
views
leaflet with R: add text labels
This code is taken from this page:
library(leaflet)
leaflet(data = quakes[1:20,]) %>% addTiles() %>%
addMarkers(~long, ~lat, popup = ~as.character(mag))
Instead of markers, is there any way ...
- 13.7k