Edit label in addFgb

[Filhomn]

Is it possible to edit the label? So the tooltip not only displays only the value of the field, but also other information or more than one field.

[tim-salabim]

I don't think it is atm. I'll look into it

[tim-salabim]

This should work now much better. Here's a few options that should work now:

library(leaflet)
library(leafem)
library(mapview)
library(sf)

fl = tempfile(fileext = ".fgb")
sf::st_write(
  obj = franconia
  , dsn = fl
  , driver = "FlatGeobuf"
  , layer_options = c("SPATIAL_INDEX=NO")
)

# # 1. character vector same length as data
# lab = sprintf("test %s", seq(nrow(mapview::franconia)))

# # 2. single character scalar
# lab = "test"

# # 3. name of a column/field in data
# lab = "NAME_ASCI"

# 4. a custom html popup with multiple columns/fields of data
# NOTE: this only works if fgb file is written without spatial index (as above)!!
lab = lapply(seq(nrow(franconia)), function(i) {
  paste0(
    '<p>'
    , franconia[["NAME_ASCI"]][i]
    , '<p></p>'
    , franconia[["NUTS_ID"]][i]
    , '</p>' 
  ) 
})
lab = lapply(lab, htmltools::HTML)

# try map
leaflet() %>%
  addTiles() %>%
  leafem:::addFgb(
    file = fl
    , group = "counties"
    , label = lab
    , popup = TRUE
    , fill = TRUE
    , fillColor = "blue"
    , fillOpacity = 0.6
    , color = "black"
    , weight = 1
  ) %>%
  addLayersControl(overlayGroups = c("counties")) %>%
  addMouseCoordinates() %>%
  setView(lng = 10.69, lat = 49.72, zoom = 8)

One note of caution, if you pass a vector of labels (options 1 & 4), you need to make sure that the fgb file was written without a spatial index, as otherwise the order of the features and the labels will not match and labels will be wrong!

Does this resolve your issue?

[Filhomn]

Yes!! Amazing!! Thank you very much!!