[GRASS-dev] legends and scales

Michael Barton Michael.Barton at asu.edu
Thu Sep 17 00:23:05 EDT 2009

On Sep 16, 2009, at 9:02 PM, Helena Mitasova wrote:

> talking about legends - how about making the default size smaller -
> would that help?
> I just went through a long assignment with many legends and settled
> at something like
> d.legend mymap at=5,50,2,5
> (at=5,50,2,5 is typed into wxGUI and conveniently stays there so
> I just change the name of the map and move the legend wherever  
> needed).
> I always size the display window so that I have a white area next to
> the map
> and put the legend there. That way I did not have the problem that
> you mention
> with the scalebar.
> It would be nice to have a sizing option for the scalebar too
> (using at=... similar to the one for legend would work).
> That way map elements could be all placed in the white area and won't
> interfere with the map image.

These are both dependent on the underlying GRASS modules, d.legend and  

There is no way to size d.barscale and it has limited customization.
d.legend can be sized. Right now, it initially displays at its default  
size (I don't know what that is exactly). You can change this in the  
legend options panel.


> Helena
> On Sep 16, 2009, at 10:47 PM, Michael Barton wrote:
>> On Sep 16, 2009, at 5:25 PM, grass-dev-request at lists.osgeo.org wrote:
>>> Date: Wed, 16 Sep 2009 19:08:38 -0000
>>> From: "GRASS GIS" <trac at osgeo.org>
>>> Subject: [GRASS-dev] [GRASS GIS] #750: wxGUI: scalebar loses focus
>>> To: undisclosed-recipients:;
>>> Message-ID: <040.a968f51a41a425b4779ef44b0d9f7177 at osgeo.org>
>>> Content-Type: text/plain; charset="utf-8"
>>> #750: wxGUI: scalebar loses focus
>>> --------------------
>>> +-------------------------------------------------------
>>> Reporter:  hamish  |       Owner:  grass-dev at lists.osgeo.org
>>>    Type:  defect  |      Status:  new
>>> Priority:  minor   |   Milestone:  6.4.0
>>> Component:  wxGUI   |     Version:  svn-develbranch6
>>> Keywords:          |    Platform:  Linux
>>>     Cpu:  x86-64  |
>>> --------------------
>>> +-------------------------------------------------------
>>> Hi,
>>> in the wx Map Display window if you add a scalebar, drag it to the
>>> bottom
>>> left, then add a raster legend, after that it is not possible to
>>> drag the
>>> scalebar any more, even if you reselect add scalebar from the add
>>> overlay
>>> menu. The legend gets dragged around instead.
>>> ??
>>> Hamish
>> What is happening is not quite what it appears. The real problem is
>> that both the scalebar and legend are "maps" because that is how
>> GRASS draws them. The invisible "maps" are the same size as the
>> screen. When you put both a legend and a scalebar on a real (i.e.,
>> visible) map and they overlay each other it is sometimes hard to
>> grab the underlying element. If you move the legend out of the way,
>> you can grab and move the scalebar.
>> There is probably a way to fix this but I didn't figure it out when
>> I first did this, and it hasn't been high enough on the priority
>> list to fix afterwards. What is needed is to somehow clip the
>> graphic of the legend and scalebar so that it closely conforms to
>> the element. However, this would also need to change size if the
>> element changes size.
>> Michael
>> _______________________________________________
>> grass-dev mailing list
>> grass-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/grass-dev

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