[GRASS-dev] GRASS Imagery

[Hamish]

> Mohammed Rashad wrote:
> > I would like to manage grass imagery modules (trying to make gui
> > modules for imagery tools). Can anyone give me any suggestions or
> > tips which I should follow during development.
> > If anyone is willing to mentor me I am happy to be a student of you.

Markus Metz wrote:
> I am nearly finished with a wxGUI version of i.points, based on the
> georectifier, but with two panes, more functionality and some more
> safety nets.

excellent do see the imagery modules getting some attention.

fyi spend some time exploring i.vpoints too, besides the mouse-only dual-
window method there is some nice stuff hiding in there there like reverse
projecting vector overlays from the target Location, 1st, 2nd, 3rd order
fit info, etc.

i.points is more the simple to use version with limited options, i.vpoints
more the advanced + whistles and bells version.

also there are a couple auto-train variants from GRASS 5 addons (maybe on
old website not wiki addons) but Markus N could probably explain those
better than me. Perhaps there are some good ideas/workflow designs in there
which might be useful.

one long-term wish is to be able to use the arrow keys to nudge the cross-
hairs mouse cursor by 1 pixel.


tip o'the day:
 Many modern UNIX distros ship with really bubblegum fuzzy antialiased 5
pixel-wide mouse cursors which are no good for precise work such as georef. 
Here is how to get X11 back to the classic non-bloated engineering-
style ones (so usable 1 pixel-wide cross-hair cursor when the exactitude
of a draftsman is needed):

mkdir -p ~/.icons/default/
ln -s /etc/X11/cursors/core.theme ~/.icons/default/index.theme
[restart X-windows]


Hamish