[GRASS-user] How to find out an angle between to points on the map (for r.plane, r.lake)

[Michael Barton]

On Feb 29, 2008, at 12:56 PM, Martin Landa wrote:

> Hi Dylan,
>
> 2008/2/29, Dylan Beaudette <dylan.beaudette at gmail.com>:
> [snip]
>> Thanks for the update. I don't regularly use either of the GUI and  
>> did
>>  not know about this feature. Does the patch that I submitted  
>> interfere
>>  with this functionality? I think that it would be useful to have  
>> this
>>  functionality in the old style monitors as well.
>
> d.measure is not used in wxGUI. Display windows are not registered as
> GRASS displays (d.mon -L) [TODO, not sure how to implemented], I think
> it would be good to use d.measure or something like g.measure in wxGUI
> too instead of using Python-based function for distance calculation
> (at least it would make sense for LL projections)? Please correct me
> if I am wrong.

What's wrong with the Python one?

Michael