Dear all, Im trying to overlap these points: https://www.dropbox.com/s/awdclg4cvsdngej/clean%20urosaurus%20records.csv?dl=0
and a wrld_simpl object: library(maptools) data(wrld_simpl) Over this raster layer https://www.dropbox.com/sh/qcw174tgogpnz7s/AAByDc3TeyFe3W4nEqTFix6Oa?dl=0 This rastr comes from a .nc file without a reference system. The author of that .nc file gave me the following data about the .nc. The projection is *Lambert conformal conic* projection CEN_LAT = 38.0 CEN_LON = -100.0 TRUELAT1 = 25. TRUELAT2 = 45. However, despite i have gone through many sites in the internet, i cant figure it out: a) if that is all the data i need to set a reference system for my points and the wrld_simp object. b) how to change a typical CRS object with such data Ex.CRS ("+proj=lcc+lat_0=38.0+lon0_2=-100+ellps=WGS84") Where do i enter the TRUELAT and CENLAT values? Are there any site that explains easily what the fields in the CRS mean and how to change them? Thanks in advance. -- Agustín Camacho Guerrero. Doutor em Zoologia. Laboratório de Herpetologia, Departamento de Zoologia, Instituto de Biociências, USP. Rua do Matão, trav. 14, nº 321, Cidade Universitária, São Paulo - SP, CEP: 05508-090, Brasil. [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
