Hello, fabulous sundiallists ! At first, many thanks to those who gave an answer to my two strange questions (Fer, Gianni, Andrew, Fernando, Tony, Pete, Ron, Roger, Thibaud, I hope I've forgotten anybody !)
I did'nt clearly expose my problem : A wall must be built above a foundation that has to be exactly oriented face to south. This wall will contain an iron armature, so that a magnetic compass will not work exactly near the wall. So I thought to give an azimuth to the workers, for example by saying : the wall must be perfectly aligned with this house angle an with this treee. I thought that it was possible to point with the GPS particular points around the wanted site. I will take relatively far points to give a better accurate guideline (e.g. some mountains twenty km far from my wall) Is it playable ? Regards Alain MORY 47°N 7°E 500 m Alsace, the country where the Sun shines in the gold wine glasses ! :-)
