Polygons not completely filled when being zoomed out

[tamas-ferenci]

When zooming out, the polygons added by addPolygons seem to be not fitting, i.e., as if they were not filled completely. Zooming in resolves the problem (gradually).

Here is a reproducible example:

library(leaflet)
states <- geojsonio::geojson_read("https://rstudio.github.io/leaflet/json/us-states.geojson", what = "sp")
#> Registered S3 method overwritten by 'geojsonsf':
#>   method        from   
#>   print.geojson geojson
leaflet() |> setView(-96, 37.8, 4) |> addPolygons(data = states, fillColor = "red", weight = 0)
#> Error trying to find path to Chrome

^{Created on 2022-12-07 with reprex v2.0.2}

You can see the small white areas around some of the state borders.

[rcberg]

Hey, I also had this issue and found a solution which worked for me. Found here. I needed to include addPolygons( ... , smoothFactor = 0) and the slivers disappeared. I hope that works for you, too.