Convert geographical coordinates to and from Swiss topo coordinates
Geographic and Swiss topo rectangular coordinates, X positive to the north, Y positive to the east (!)
LB2MK( long, lat ) LB2YX( long, lat ) YX2LB( yt_e, xt_n ) YX2MK( yt_e, xt_n )
long,lat |
Real, geogr. longitude, latitude |
yt_e, xt_n |
Real, Swiss coordinates, east, north positive |
LB2MK From geogr. longitude and latitude to planar meridian convergence [gon].LB2YX From geogr. longitude and latitude to Swiss coordinates.YX2LB From Swiss coordinates to geogr. longitude and latitude.YX2MK From Swiss coordinates North and East to planar meridian convergence [gon].LongBerne, LatBerne geogr. coordinates of Berne, 7deg26'22.50" east, 46deg57'08.66" north.yToEastBerne, xtoNorthBerne Swiss topo coordinates of refernce point near Berne.
Christian W. Hoffmann <christian@echoffmann.ch> after H.Matthias, lecture 'Amtliche Vermessungswerke 1', ETH Zurich, 1986.
LB2MK( LongBerne, LatBerne) # 7.21188e-16 [gon] LB2MK( 9.132582913360895, 46.18669420448755) # somewhere in Switzerland , 1.37472 LB2YX( LongBerne, LatBerne) # 600.0, 200.0 YX2LB ( yToEastBerne, xtoNorthBerne ) # 7.4395833 46.9524055 YX2MK ( 600, 200) # = 0
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.