[GRASS-user] Dumb Newbie Question - Georectifier

rchirgwin at ozemail.com.au rchirgwin at ozemail.com.au
Mon Mar 19 05:51:20 EDT 2007


(Thanks for Michael's note re new binaries, I will give it a try.)

Hamish wrote:
> Richard Chirgwin wrote:
>   
>> I am learning my way around Grass-GIS, and have bumped into an
>> apparent  dead end.
>>
>> I am using Grass 6.2.1 on Mac OSX 10.4  on a Mac PowerBook.
>>
>> In the georectifier, I can get the monitor started and ready for 
>> entering points using i.group, i.target and i.points. When I mark the 
>> first point on the monitor, Grass switches to "keyboard input
>> required".
>>
>> This is where I am stuck: I can type in the co-ordinates into the 
>> 'output' upper pane, but pressing "Return" achieves nothing. I can
>> type  the points into the bottom pane and use the "Run" button, but
>> all I get is an error dialog.
>>
>> Can anyone advise?
>>     
>
> You are using i.points from the Imagery -> Rectify & Georeference image
> group right? Not the command line or the other File->Georeference tool?
>   
I gave up on the GUI interface because it hung. So I went through the 
command line ... the command line below the output pane.
i.group
i.target
d.mon start=x0
i.points

After using the mouse Grass was asking for keyboard input. Nothing told 
me where to run keyboard input...
> You can't type stuff into the Tcl GUI "Output" panel. 
...as I found. But using the "run in X Windows button" at the bottom of 
the TCL panel started the Terminal window, which was not starting if I 
used the GUI. So that problem is fixed. If there's a documentation 
project, there should be an explicit remark that you have to launch the 
terminal for operations requiring input!

Thanks for all the input. Still working on other things which I may 
submit to the list as separate questions!

Richard
> You need to do it
> in the Terminal window. Running i.points from the Imagery menu should
> bring up a terminal window for you to work in, not a GUI with a 'Run'
> button.
>
> I'm surprised you get the "Run" button; i.points in GRASS 6.2.1 is set
> up to open a terminal window and guarantee an x monitor is open, GUI or
> no GUI. Trying William's 6.2.1 Mac binaries here I do get a xterm pop up
> asking for the group name, as expected.
>
>
> Maybe try running i.points from the command line after running "d.mon x0"
> ?
>
>
> Hamish
>
>   




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