[Manifold-l] Custom datums

[adamw at manifold.net]

> > > Also understand Manifold doesn't consider the 7th (scale)
> > > parameter in the transformation (so left it out). Is this
> > > correct, & what affect does it have on accuracy?
> >
> > Yes, this is correct. The error should not exceed 10 meters
> > (the radius of the Earth * m * 10e-6).
> 
> And what about <scaleAdjustment> parameter?

Ouch... you are totally correct. I forgot about this small addition made in 7x.

The "scaleAdjustment" parameter is exactly the 7th parameter mentioned in the original post. As I said, it was added by Manifold 7x.

--
Adam Wachowski
Manifold Development Team