Hello. I have a sfc_MULTILINESTRING object called zz. It is in CRS EPSG:5514 ("S-JTSK / Krovak East North"). When I convert it to sp via as(zz, "Spatial"), I get the following warning:
Warning message: In showSRID(uprojargs, format = "PROJ", multiline = "NO") : Discarded datum Unknown based on Bessel 1841 ellipsoid in CRS definition, but +towgs84= values preserved Could you help me understand what does this mean and whether it is serious? I use: R version 4.0.2 (2020-06-22) Platform: x86_64-pc-linux-gnu (64-bit) Running under: Ubuntu 20.04 LTS sf 0.9-5 sp 1.4-2 rgdal 1.5-12 rgeos 0.5-3 gdal 3.0.4 geos 3.8.0 Many thanks for your help. Best wishes, *Ing. Michal Kvasnička, Ph.D.* *Masaryk University | School of Economics and Administration* Department of Economics A: Lipová 41a | 602 00 Brno E: michal.kvasni...@econ.muni.cz | W: www.econ.muni.cz/~qasar [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo