Conversion shapefile's coord system from: GCS_Assumed_Geographic_1 to WGS '84

General
#1

I have my shapefile in arcmap 10.8.1 with this coordinate system: Geographic Coordinate System: GCS_Assumed_Geographic_1 Datum: D_North_American_1927 Prime Meridian: Greenwich Angular Unit: Degree

I want to convert in in WGS 84 but i failed. Any help?

I opened one blanck map, from view i set WGS 84, i uploaded a basemap, and them from Define projection, i set the ccord system to WGS 84, but it did not load correctly,

Any idea?

Ps* maybe it is ESRI,104000?

#2

Hi @DimitrisK
For this map re-projection task I suggest the proj4 package from CRAN.

#3

Hi, you could read it in with the sf package then transform it with st_trasnform(4326), which is the EPSG for WGS84.

Transform or convert coordinates of simple feature — st_transform • sf (r-spatial.github.io)

#4

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