[R] Package sf, unit for dist in st_buffer

[Ashim Kapoor]

Dear All,

map3 <- st_read("My Shapefile") %>% st_as_sf %>% st_transform(crs = 7755)
# Please see any shapefile here :
https://github.com/datameet/maps/tree/master/Districts

map_buffer <- st_buffer(mapHR, dist = -1000)
# CRS 7755 is for India, please see here, https://epsg.io/7755

My query is : The unit for distance is meters ?
On this page : https://epsg.io/7755,it says unit is metre.

On this page :
https://www.rdocumentation.org/packages/sf/versions/0.7-4/topics/geos_unary
it says :
dist numeric; buffer distance for all, or for each of the elements in x; in
case dist is a units object, it should be convertible to arc_degree if x
has geographic coordinates, and to st_crs(x)$units otherwise

I just want to be sure that, I am using a distance of  1 kilo metre ( 1000
metres) . Can someone please confirm ?

Thank you,
Ashim

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