# File lib/jpmobile/datum_conv.rb, line 63 def self.jgd2tky(b,l,he=0) x,y,z = blh2xyz(b,l,he,GRS80) x,y,z = xyz2xyz(x,y,z,ITRF94toTokyo97) b,l,he = xyz2blh(x,y,z,Bessel) return b,l,he end