leaflet

问题 I created a map with the leaflet with two databases (df and df1). I managed to insert the legend of the database df, which are points referring to the clusters that I generated. However I would like to insert the database icon df1 in this same Legend. I inserted an attached image to illustrate. In the same legend, it shows the clusters, as well as the icon for the df1 database. The description of this icon I designated as "contact point". The executable code is below library(leaflet) library

问题 I create a map app using shiny and leaflet. It projects a map and some shape files. The shape file has area values. I want to set whether to display the shape file or not based on the area value. Specifically, the sliderInput function is used. Although the display of the shape file is restricted using the sliderInput function, The setview is reset every time the number is changed by sliderInput. Instead of running setview every time, I want you to run setview where you are. What should I do?

问题 I create a map app using shiny and leaflet. It projects a map and some shape files. The shape file has area values. I want to set whether to display the shape file or not based on the area value. Specifically, the sliderInput function is used. Although the display of the shape file is restricted using the sliderInput function, The setview is reset every time the number is changed by sliderInput. Instead of running setview every time, I want you to run setview where you are. What should I do?

问题 How do I go about downloading the image generated at Leaflet easyPrint button using HtmlUnit? I am trying it like this: public static void main(String[] args) { try{ WebClient webClient = new WebClient(); HtmlPage test = webClient.getPage("http://rowanwins.github.io/leaflet-easyPrint/"); webClient.waitForBackgroundJavaScript(5000); final DomElement button = test.getFirstByXPath("/html/body/button"); final InputStream image = button.click().getWebResponse().getContentAsStream(); System.out

问题 I would like to create a custom component with react-leaflet that shows the actual position (x,y) of the mouse, but I don't know how to create it. I found react-leaflet-control but it seems that it is not up to date, of course I readded the api documentation https://react-leaflet.js.org/docs/en/custom-components.html but I did not understand it :/ Can someone give me an exemple of a custom component please, juste a component that display "Hello world" whould be more than enought. 回答1: As per

问题 I want to include a highcharter plot in my leaflet popup. With help from this post Iam able to include a sparkline plot. However, due to my lack of html skills I dont know how to modify the code to work with highcharter . This answer on SO (example from answer) is exactly what I want. I just dont know how to implement in in R . library(leaflet) library(tidyverse) library(htmlwidgets) library(htmltools) library(sparkline) library(highcharter) # Step 1 convert htmlwidget to character

问题 I would like to update the selectModUI from the mapedit package for different leaflet maps when using Shiny . Below is a working example. library(tidyverse) library(shiny) library(sf) library(leaflet) library(mapview) library(mapedit) library(DT) library(viridis) # Load the sf object nc <- st_read(system.file("shape/nc.shp", package = "sf")) # Project transformation nc <- st_transform(nc, crs = 4326) # Create a color function for the leaflet map sid74_pal <- colorBin(palette = viridis(10),

问题 I would like to update the selectModUI from the mapedit package for different leaflet maps when using Shiny . Below is a working example. library(tidyverse) library(shiny) library(sf) library(leaflet) library(mapview) library(mapedit) library(DT) library(viridis) # Load the sf object nc <- st_read(system.file("shape/nc.shp", package = "sf")) # Project transformation nc <- st_transform(nc, crs = 4326) # Create a color function for the leaflet map sid74_pal <- colorBin(palette = viridis(10),

问题 I am having a problem that really should not be a problem. For some reason the images I have in app/assets/images are not accessable. When I request them I just get a 404. ./log/development.log:Started GET "/assets/images/marker-shadow.png" for 127.0.0.1 at 2013-07-20 22:02:38 -0400 ./log/development.log:ActionController::RoutingError (No route matches [GET] "/assets/images/marker-shadow.png"): mike@sleepycat:~/projects/myapp$ ls app/assets/images/ marker-icon-2x.png marker-icon.png marker

问题 I am having a problem that really should not be a problem. For some reason the images I have in app/assets/images are not accessable. When I request them I just get a 404. ./log/development.log:Started GET "/assets/images/marker-shadow.png" for 127.0.0.1 at 2013-07-20 22:02:38 -0400 ./log/development.log:ActionController::RoutingError (No route matches [GET] "/assets/images/marker-shadow.png"): mike@sleepycat:~/projects/myapp$ ls app/assets/images/ marker-icon-2x.png marker-icon.png marker