If you have a good coastline map, can you just geo-rectify the new map to it
using coastline features as GCPs? Then it'll have the same projection as the
coastline layer and you can re-project it to your working projection.
Stu
> On May 13, 2016, at 10:14 AM, Eric Patton wrote:
>
>
>
> On
On Fri, May 13, 2016 at 10:48 AM, Anna Petrášová
wrote:
> >> I'm not sure if I am going about this the correct way.
> >
> >I don't have too much experience with this, but I think it's a good
> >approach. But you also need to know the ellipsoid, not sure if that
> >could cause the misalignment.
>
On Fri, May 13, 2016 at 9:42 AM, Eric Patton wrote:
> Hi list,
>
> What is the best approach to take when georectifying a scanned, projected
> map (but the projection is unknown)? Is it necessary to georectify the map
> first into a lat-long location and *then* r.proj the map into a target
> proje
