On Mar 4, 2008, at 10:00 AM, [EMAIL PROTECTED] wrote:
Date: Tue, 4 Mar 2008 17:04:27 +0100
From: "Nicolas MERLET" <[EMAIL PROTECTED]>
Subject: [GRASS-dev] image rectification from command line only ?
To: <[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
hi all,
i need to rectify an image automatically (i assume using i.points and
i.rectify). as far as i've been able to see, i.points is to use in
graphical
monitor mode ? so does anyone know how to use it from the command
line (and
only from the command line) ?
thanks for helping...
nicolas
i.points lets a user interactively set ground control points (GCPs)
for an unrectified image, using a rectified image. This particular
process cannot be automated since it is interactive by definition.
However, if you already know the ground coordinates of a set of xy
points for an image, you can build a POINTS file and i.rectify will
georectify the image from the command line.
Michael
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