[GRASS-dev] legends and scales

Michael Barton Michael.Barton at asu.edu
Thu Sep 17 02:12:33 EDT 2009

On Sep 16, 2009, at 11:03 PM, Hamish wrote:

> Helena:
>> talking about legends - how about making the default size
>> smaller -
> ...
>> I just went through a long assignment with many legends and
>> settled at something like
>> d.legend mymap at=5,50,2,5
> fine, all I ask is that this is done in the wxGUI level with
> at=, not in main.c. Note by using at= you shut off automatic
> font sizing for CELL maps. (in that case it does what the user asks  
> it to, not what it thinks fits best)
> other things rely on the existing behaviour. (d.rast.leg for
> example)
> after some time it could be "backported" to main.c and scripts
> adjusted if everyone likes the new size, but for now please
> stick to adjusting the default in the wxGUI caller.
> Michael:
>> Right now, it initially displays at its default size
>> (I don't know what that is exactly).
> the default in main.c is at=12,88,3,7
> Helena:
>> would that help?
> no, but we can still talk about it.
> Helena:
>> It would be nice to have a sizing option for the scalebar too
>> (using at=... similar to the one for legend would work).
> it already has at=x%,y% placement. You mean to specify its width/
> distance as well? eh... that's automatically determined and it
> works quite well so I'm not too excited to start "improving" it.
> ps.map's one is at the other end: complete control and no
> automation. d.scalebar is a hell of a lot easier to use and we
> don't hear complaints.
>> That way map elements could be all placed in the white area
>> and won't interfere with the map image.
> not sure why that can't happen already. Do you want a vertical
> scalebar? perhaps put the white borders at the bottom and top
> instead of the sides and create a horizontal legend?
>> (no need to figure out what those 4 numbers mean, I never
>> remember it correctly).
> d.legend --help
> [at=bottom,top,left,right]
> (same as d.frame) 6.5
> Hamish

Once the map elements new bug is fixed in, I can easily add  
at=5,50,2,5 to the d.legend command in the wxgui as the new default  
(this could still be changed by the user subsequently). If everyone  
likes it we can keep it. It looked pretty good to me--except for the  
legend freezing and crashing the GUI. Need to trap that error and see  
what it is.

6.4 still works fine.


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