proj4.defs("EPSG:3912","+proj=tmerc +lat_0=0 +lon_0=15 +k=0.9999 +x_0=500000 +y_0=-5000000 +ellps=bessel +towgs84=476.08,125.947,417.81,-4.610862,-2.388137,11.942335,9.896638 +units=m +no_defs +type=crs");