[Qgis-user] Atlas generation - Rule based renderer on two different layers??

[Pietro Rossin]

The statement for the label:
CASE WHEN contains($geometry , centroid($atlasgeometry)) THEN my label END

WORKS!
But the two layers must be in the same reference system...
Thanks!


2014-03-28 14:03 GMT+01:00 Pietro Rossin <pierigis at gmail.com>:

> Hello
> If I try to apply a ruled style with this statements I cannot achieve
> expected result
> IE apply a style to feature layer if the centroid of the atlas feature is
> in the feature to be styled
>
> intersects(centroid($atlasgeometry), $geometry )
> within(centroid($atlasgeometry), $geometry )
> contains($geometry,centroid($atlasgeometry) )
>
> Where is my mistake?
> bie
>
>
>
> 2014-03-28 10:03 GMT+01:00 Pietro Rossin <pierigis at gmail.com>:
>
>> Thank you Alexandre
>> Yess!!!
>> I get rid of the problem just after this posting.. And indeed the
>> solution was as written on the end of Nathan post..
>>
>> Now i was playing with label rules but without success...
>> I have two polygon layers, each feature of the first one can perfectly
>> contain one or more features of the second (this last is the layer for the
>> atlas generation), but sometimes the atlas feature can slightly exceed the
>> containing polygon of the first layer
>>
>> I want the label to appear for the first layer only for the feature that
>> contains the atlas feature and not for the surrounding ones...
>>
>> So I wrote this statement:
>> CASE WHEN contains($geometry , centroid($atlasgeometry)) THEN my label END
>>
>> But it doesn't work...
>>
>>
>>
>>
>>
>> 2014-03-28 9:06 GMT+01:00 Alexandre Neto [via OSGeo.org] <[hidden email]<http://user/SendEmail.jtp?type=node&node=5131732&i=0>
>> >:
>>
>>  Yes you can. check the end of this post.
>>>
>>>
>>> http://nathanw.net/2013/12/02/waiting-for-qgis-22-highlighting-current-atlas-feature/
>>>
>>> Alexandre Neto
>>> Em 28/03/2014 07:56, "Pietro Rossin" <[hidden email]<http://user/SendEmail.jtp?type=node&node=5131715&i=0>>
>>> escreveu:
>>>
>>>> Hello people
>>>> I'm using the atlas generator and I'm able to use a rule based renderer
>>>> on
>>>> the Atlas feature showed by the filter: $id = $atlasfeatureid
>>>>
>>>> I'm wondering if it is possible to render the symbology of a second
>>>> layer
>>>> using a distance criterion
>>>>
>>>> I know postgis can query a feature layer by distance with a second layer
>>>> with st_dwithin(g1,g2,d).
>>>>
>>>> Is it possible to make something similar on the fly using the $geometry
>>>> of
>>>> the second layer and $atlasgeometry as the selector by distance of the
>>>> feature to be rendered?
>>>>
>>>> bie
>>>> pietro
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> View this message in context:
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>> on two different layers??<http://osgeo-org.1560.x6.nabble.com/Atlas-generation-Rule-based-renderer-on-two-different-layers-tp5131712p5131732.html>
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