[Qgis-user] geo-referencing

[Ricardo Filipe Soares Garcia da]

Olá (hello) Orlando

It isn't very clear to me what you want to do. On your e-mail subject
you speak about georeferencing, but then the message seems to mean
that what you want is to import your data to a postgis database.

I am assuming you want to geo-reference your military maps and orthos
using some vector data as a visual aid in setting your ground control
points (GCP). I assume this vector data is stored in a postgis
database.

In order to geo-reference your data:

1 - Load your vector reference file to the map canvas
2- Use the georeferencer plugin:
        2.1 - select your transformation type
        2.2 - load your  raster map
        2.3 - select your desired coordinate system (in your case epsg 27492)
        2.4 - digitize your GCPs and when prompted for the map
coordinates select the option "from map canvas"
        2.5 - now click the place on the map canvas (the one with your
vector reference file that you loaded in 1) in the corresponding
position of your GCP
        2.6 - repeat this process until you have your desired number
of GCPs and then press the create button

Is this what you are trying to do?

Portuguese language follows:

Orlando, espero que seja o que precisas. Se precisares de ajuda
contacta-me para o meu e-mail e tentarei dar uma explicação mais
clara.

Felicidades

On Wed, Dec 9, 2009 at 10:32 AM, legio nostra <legio.patria at gmail.com> wrote:
> Hello everyone,
>
> I am doing a job for college, and I need to enter in my database, two
> military maps, and also two orthophotomaps. The geo-referencing system I'm
> using is the Datum 73 / Modified Portuguese Grid (deprecated) (EPSG :
> 27492).
>
> Someone can tell me what is the procedure?
>
> Thank you for your help.
>
> P.S. The vector data are already in the Postgres database.
>
> Orlando Bernardo
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>
>



-- 
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Ricardo Garcia Silva