[GRASS-user] map display query and layers

[Dave Roberts]

Dear Moritz and Helmut,

     v.what works perfectly; thanks for that.  Sadly, the issue reflects 
my misunderstanding.  I thought the map display GUI was calling v.what 
with coordinates extracted by the GUI from the mouse click.  I have been 
talking about the map display query tool on wx# all along, so I 
apologize if I have used the wrong vocabulary to describe the problem.

     File PERMANENT/.tmp/hostname/MONITORS/wx0/cmd correctly reflects 
the layer request from d.vect, so it shouldn't be too difficult to get 
the GUI query tool to honor that, but I'm just beginning to dig into 
GRASS source code and I wouldn't want to tackle this yet.

Thanks, Dave

On 10/04/16 06:32, Helmut Kudrnovsky wrote:
> Dave Roberts wrote
>> Thanks Helmut, Thanks Anna
>>
>> I compiled the trunk version, and the map query tool now clearly behaves
>> differently, but not how I expected
>>
>> 1) it shows all layers in the map query results, regardless of what
>> layer (if any) was selected in d.vect
>>
>> I.e.
>>
>> d.vect map
>> d.vect map layer=1
>> v.vect map layer=2
>>
>> all have identical results in map query.  In addition, specifying layers
>> that don't exist emits no warning, e.g. d.vect map layer=999
>> works fine, and behaves the same as any of the d.vect commands above
>>
>> 2) it highlights selected features in yellow, and the selected features
>> (areas in my case) reflect layer #1, no matter what layer is requested
>> in d.vect.  I.e. d.vect map layer=2 map queries highlight layer 1.
>>
>> I had been working on this with a quite complicated imported data set,
>> so to isolate the behavior more clearly I created the data below
>>

material deleted to reduce the  length

>>>
>>> Fyi
>>>
>>> http://lists.osgeo.org/pipermail/grass-commit/2016-
>>> October/040536.html
>>>
>>> Anna committed the patch to trunk ; so if may be able to switch to trunk
>>> for
>>> compiling, this v.what addition is available there without the need of
>>> manually patching.
>>>
>>>
>>>
>>> -----
>>> best regards
>>> Helmut
>>> --
>>> View this message in context:
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> AFAIK the map query hasn't been changed by Anna's commit.
>
> v. what (https://grass.osgeo.org/grass73/manuals/v.what.html) has a changed
> behaviour by now reckognizing the specified layer.
>
> the same behaviour for the map query may need a separate enhancement ticket.
>
> in the meantime would be v.what an alternative?
>
>
>
>
>
> -----
> best regards
> Helmut
> --
> View this message in context: http://osgeo-org.1560.x6.nabble.com/map-display-query-and-layers-tp5288830p5289199.html
> Sent from the Grass - Users mailing list archive at Nabble.com.
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