[GRASS-user] Gorreferencing using GRASS

[Martin Landa]

Hi,

2010/4/21 Jenny Turner <jennyturner1980 at gmail.com>:
> 1- Right in the beggining, you have a raster, named mrizka, displayed in
> Display window1. I want to know:
> - How did you put the grid;
> - What is the purpose of this image? Because it is empty... It's totally
> blank

data are artificial, just created for purpose of lesson at my
university (image where you define GCPs in destination location)

> 2- The group you create is the group of images you want to "georrectify"
> right?

Yes. Probably georectifier wizard could be improved instead just
calling i.group module.

> 3- the last panel, before, georrectification, regards "image to display for
> GCP creatioN". This means what? This image is the one that I want to
> georrectify or the one that is already rectified?  Because when it's opened,
> it already displays a grid and points/numbers.

It's image from source location where you can define GCPs.

> 4- XY are coordinates from not-georreferenced images and E/N are form the
> Georreferenced images right?

Yes.

Martin

-- 
Martin Landa <landa.martin gmail.com> * http://gama.fsv.cvut.cz/~landa