Hi Niels,
I still cannot understand what you are trying to do.
But I suppose what you need is "Orthorectification" on each aerial
photo.
I tried to overlap several aerial photos of some coastal area to see
beach erosion.
But it was not successful. So I asked any solution on this mailing list
and received several kind replies.
One of them introduced me "Rastools" and I am now happy with it.
Please check the web site below.
http://members.aol.com/maptools
Regards,
Hiko
Niels Andrews wrote:
> I will try to make this brief as possible.I have a vector map open,
> projection WGS84. I open a geo referenced quad as a raster layer
> everything fine. I add a raster (IR. aerial image) Tiff. I register
> the tiff with control points, WGS84, and hit OK and the map rotates 41
> degrees to the West.I have tried taking the control points from the
> vector map first and then from the image, and reversed the procedure.
> I close the raster layer containing the IR. image and it returns back
> to its proper orientation. I have tried just opening the vector and
> IR. image same results. I have tried every combination possible. I
> think. Frustrated. What am I doing wrong?
Kazuhiko Yamashita
Division of Environment & Marine, Kokusai Kogyo co. ltd
3-6-3 Hakataeki-higashi, Hakata-ku, Fukuoka 812-0013 Japan
Phone: +81-92-431-7277 FAX: +81-92-431-7275
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