[GRASS-dev] lib/vask

[Glynn Clements]

Brad Douglas wrote:

> > Ok, if disposal is out of the question, it will need to be re-written
> > if vask is to be eliminated.
> > 
> > > I believe i.ortho.photo will require input from one method or another.
> > > I don't see it working without interactive input, either.
> > 
> > Could you explain why?
> 
> It is sometimes the case that the imagery being rectified (warped) has
> no GCPs (ground control points) and sometimes we have to resort to
> visual inspection and selection of points between images to transform
> them.  It is also sometimes the case that we have to supplement supplied
> GPCs (maybe only the corner and center points are provided) to yield
> desired results.  This makes heavy use of the primitive GUI (images in
> subwindows, zooming, menus, etc).

The selection of GCPs should probably be integrated with Michael's
i.points replacement.

Is there any reason why other forms of interaction (other than visual
selection of coordinates) would be necessary?

-- 
Glynn Clements <glynn at gclements.plus.com>