Converting datas to survex input

[Wookey]

On Mon 12 Nov, Olly Betts wrote:
> On Mon, Nov 12, 2001 at 02:06:56PM +0100, Jerome Alet wrote:
> > I'm planning to do some tests with cavern, and I've got a lot of fixed
> > points but I've only got their Lambert coordinates (Lambert coordinates
> > are used in France). What I've got is (x,y) Lambert(III) and altitude in
> > metres. Does someone know if Lambert coordinates can be used directly
> > with cavern or if I must convert them to another coordinates system ?

> The pragmatic answer is that it's probably best to just use whichever
> coordinate system seems is the natural one.  So if you have data in one
> system, and want answers in the same one, use that one.

Ol is right - just use the co-ordinates as supplied unless you need to cover
the whole of France in one data-plot (and mind the innacuracies produces by
assuming a rectilinear grid over this area).

However - if you do want to do arbitrary co-orinate conversion then there are
several bits of software out there to let you do that. We have used Geo2 to
do this which has a versatile script-based conversion system. I probablu
ought to package that for Debian too.

I can't find a current website for it. Ol, I suggest we put it on the Survex
site as a related tool.

Wookey
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