pane option for addStarsImage

[mtennekes]

Maybe I overlooked it, but there does not seem to be a pane option for addStarsImage?

[trafficonese]

This is currently not possible because the underlying JS-method addRasterImage doesnt offer it.
But there is a PR that should fix it: rstudio/leaflet#692

[trafficonese]

The pane argument is now available in leaflet 2.2.2 as
addRasterImage now takes options = gridOptions()

[mtennekes]

Still does not seem to be passed on correctly. Are you sure pane is passed on via gridOptions?

library(stars)
library(leaflet)
library(leafem)

tif = system.file("tif/L7_ETMs.tif", package = "stars")
x = read_stars(tif)
leaflet() %>%
	addProviderTiles("OpenStreetMap", group = "osm") %>%
	addProviderTiles("Esri.WorldImagery", group = "esri") |> 
	addStarsImage(x, project = TRUE, options = gridOptions(pane = "leaflet-overlay-pane")) |> 
	addLayersControl(baseGroups = c("osm", "esri"))

(The related tmap issue r-tmap/tmap#882)

[trafficonese]

Apparently you cannot append a layer to any of leaflets own panes. You will get a browser error like this

Uncaught TypeError: Cannot read properties of undefined (reading 'appendChild')

You have to create a pane frst with addMapPane("name", zIndex = 450) , then it should work.

This code creates the map below and inside the HTML you can see that the pane exists and the layer is inside.

library(stars)
library(leaflet)
library(leafem)

tif = system.file("tif/L7_ETMs.tif", package = "stars")
x = read_stars(tif)

leaflet() %>%
  addMapPane("myspecialpane", zIndex = 450) %>% 
  addProviderTiles("OpenStreetMap") %>%
  addStarsImage(x, project = TRUE, options = gridOptions(pane = "myspecialpane"))

[mtennekes]

Thx @trafficonese

This example doesn't work on my machine. It added the pane, but it still puts the stars image into the leaflet tile-pane. The new pane remains empty. In Safari inspector:

library(stars)
#> Loading required package: abind
#> Loading required package: sf
#> Linking to GEOS 3.11.0, GDAL 3.5.3, PROJ 9.1.0; sf_use_s2() is TRUE

library(leaflet)
library(leafem)
sessioninfo::session_info(pkgs = "attached")
#> ─ Session info ───────────────────────────────────────────────────────────────
#>  setting  value
#>  version  R version 4.3.1 (2023-06-16)
#>  os       macOS Sonoma 14.4.1
#>  system   aarch64, darwin20
#>  ui       X11
#>  language (EN)
#>  collate  en_US.UTF-8
#>  ctype    en_US.UTF-8
#>  tz       Europe/Berlin
#>  date     2024-06-11
#>  pandoc   3.1.1 @ /Applications/RStudio.app/Contents/Resources/app/quarto/bin/tools/ (via rmarkdown)
#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
#>  package * version    date (UTC) lib source
#>  abind   * 1.4-5      2016-07-21 [1] CRAN (R 4.3.0)
#>  leafem  * 0.2.3.9006 2024-06-11 [1] Github (r-spatial/leafem@541e2a6)
#>  leaflet * 2.2.2      2024-03-26 [1] CRAN (R 4.3.1)
#>  sf      * 1.0-16     2024-03-24 [1] CRAN (R 4.3.1)
#>  stars   * 0.6-5      2024-01-15 [1] Github (r-spatial/stars@666abc7)
#> 
#>  [1] /Library/Frameworks/R.framework/Versions/4.3-arm64/Resources/library
#> 
#> ──────────────────────────────────────────────────────────────────────────────

^{Created on 2024-06-11 with reprex v2.1.0}

[trafficonese]

I cannot reproduce this. It works in all my browsers also with your package versions..
@tim-salabim Can you reproduce that?

The only difference is I'm using Windows an R 4.4.0 Patched.. but that should not be the issue..

[tim-salabim]

Yes, with R version 4.3.1 (2023-06-16) -- "Beagle Scouts" I can reproduce this. It works fine with R version 4.4.0 Patched (2024-05-26 r86634) -- "Puppy Cup"

Maybe a similar issue to #77 (comment) ? Although it seems strange that this is related to the R version, it seems like it is the case...

[mtennekes]

Just installed R 4.4.1. And this issue still persists...

[tim-salabim]

This works for me with R 4.4.1. Are you using the github version of leafem?

[ranghetti]

Il it can help, I also encountered this problem; all worked fine after installing the github version of leafem (v. ‘0.2.3.9006’). This solved also r-tmap/tmap#882. Tested both on Windows and Ubuntu.