r-leaflet

Data I have a dataframe which contains 35,000 lat/lon locations. The locations have been plotted onto an interactive leaflet map. The Situation I would like to publish the map online via a markdown document. The Problem When I export the map as an html page or in markdown the map is: Laggy Hard to navigate Webpage Loads slowly Questions What is the maximum number of points you plot on a leaflet map without compromising the ability to navigate the map? Would publishing the map as a shiny application help solve the loading speed, the maps lagginess and other performance issues? If not, what

I am trying to plot flow map (for singapore) . I have Entry(Lat,Long) and Exit (Lat,long). I am trying to map the flow from entry to exit in singapore map. structure(list(token_id = c(1.12374e+19, 1.12374e+19, 1.81313e+19, 1.85075e+19, 1.30752e+19, 1.30752e+19, 1.32828e+19, 1.70088e+19, 1.70088e+19, 1.70088e+19, 1.05536e+19, 1.44818e+19, 1.44736e+19, 1.44736e+19, 1.44736e+19, 1.44736e+19, 1.89909e+19, 1.15795e+19, 1.15795e+19, 1.15795e+19, 1.70234e+19, 1.70234e+19, 1.44062e+19, 1.21512e+19, 1.21512e+19, 1.95909e+19, 1.95909e+19, 1.50179e+19, 1.50179e+19, 1.24174e+19, 1.36445e+19, 1.98549e+19,

I am working with the leaflet R package. I have a zoning system made of polygons and I'd like to lay their IDs on top of them. Below is an illustration (with another software) of my objective. Thanks for your suggestions! Since there is no reproducible data, I decided to use one of my previous posts related to leaflet. There are two things you want to take away from this post: 1) you need to create a data frame containing center points of target regions, 2) you need to use addLabelOnlyMarkers() . You can achieve the first thing using gCentroid() . I added row names of the polygon data set (UK)

I'd like to add a title to the whole map (different from the legend title: addLegend(..., title = "", ...) : by "title", I mean an overlaid map component that stays in place while the map is moved (unlike an overlaid image) . Is that an option in RStudio's leaflet for R? leafletR has a title="" argument but it updates the title of the webpage: it does not add a title to the map. You should provide a reproducible example. But using addControl you could try: library(leaflet) library(htmlwidgets) library(htmltools) rr <- tags$div( HTML('<a href="https://cran.r-project.org/"> <img border="0" alt=

I would like to use the package leaflet with R to draw a map of a specific countries such as Italy, Spain, etc. I checked the basic examples with the function setView() and I tried to give a vector of two values for the arg of latitude and longitutde : m <- leaflet() %>% addTiles() %>% # Add default OpenStreetMap map tiles setView(lng=c(46.00,48.00), lat=c(2.00,6.00), zoom = 4) m # Print the map (map is not centered on a country, it's just a test) But I will never be able to have a specific country on my screen such as the result of this function : library(maps) map('italy', fill = TRUE, col =

I am trying to use Leaflet package in R to draw a amp and connect the markers given the latitude and longitude information in the table below. | Observation | InitialLat | InitialLong | NewLat | NewLong | |-------------|------------|-------------|-----------|-----------| | A | 62.469722 | 6.187194 | 51.4749 | -0.221619 | | B | 48.0975 | 16.3108 | 51.4882 | -0.302621 | | C | 36.84 | -2.435278 | 50.861822 | -0.083278 | | D | 50.834194 | 4.298361 | 54.9756 | -1.62179 | | E | 50.834194 | 4.298361 | 54.9756 | -1.62179 | | F | 50.834194 | 4.298361 | 51.4882 | -0.302621 | | G | 47.460427 | -0.530804