R: Add image popups to leaflet layers.

addPopupImages {leafpop} | R Documentation

## Add image popups to leaflet layers.

### Description

Add image popups to leaflet layers.

### Usage

    addPopupImages(map, image, group, width = NULL, height = NULL)

### Arguments

`map` | the `leaflet` map to add the popups to.
`image` | A character `vector` of file path(s) or web-URL(s) to any sort of image file(s).
`group` | the map group to which the popups should be added.
`width` | the width of the image(s) in pixels.
`height` | the height of the image(s) in pixels.

### Value

A `leaflet` map.

### Examples

    if (interactive()) {
    ## remote images -----
    ### one image
    library(leaflet)
    library(sf)

    pnt = st_as_sf(data.frame(x = 174.764474, y = -36.877245),
                    coords = c("x", "y"),
                    crs = 4326)

    img = "http://bit.ly/1TVwRiR"

    leaflet() %>%
      addTiles() %>%
      addCircleMarkers(data = pnt, group = "pnt") %>%
      addPopupImages(img, group = "pnt")

    ### multiple file (types)
    library(sf)
    images = c(img,
                "https://upload.wikimedia.org/wikipedia/commons/9/91/Octicons-mark-github.svg",
                "https://www.r-project.org/logo/Rlogo.png",
                "https://upload.wikimedia.org/wikipedia/commons/d/d6/MeanMonthlyP.gif")

    pt4 = data.frame(x = jitter(rep(174.764474, 4), factor = 0.01),
                      y = jitter(rep(-36.877245, 4), factor = 0.01))
    pt4 = st_as_sf(pt4, coords = c("x", "y"), crs = 4326)

    leaflet() %>%
      addTiles() %>%
      addMarkers(data = pt4, group = "points") %>%
      addPopupImages(images, group = "points", width = 400) # NOTE the gif animation

    ## local images -----
    pnt = st_as_sf(data.frame(x = 174.764474, y = -36.877245),
                    coords = c("x", "y"), crs = 4326)
    img = system.file("img","Rlogo.png",package="png")
    leaflet() %>%
      addTiles() %>%
      addCircleMarkers(data = pnt, group = "pnt") %>%
      addPopupImages(img, group = "pnt")
    }

[Package leafpop version 0.0.6 Index]