[Qgis-user] rule based classification - attribute based on other layer

[Alex Mandel]

Maybe but only if you table join 1st (or spatial join).
Are you trying to style feature A if it intersects with layer B features?

Purely based on comparison of values is kinda unusual and probably
doesn't exist yet.

Sounds like you are trying Red if valueA > max(layer B value)?

Thanks,
Alex

On 03/25/2015 10:14 AM, Matteo Ghetta wrote:
> Hi all,
> very simple question.
> In the rule-based classification (vector) is it possible to use values of
> another layer loaded in QGIS?
> 
> For example. Point vector and I want to display as red each feature that
> has a value greater than a value stored in another point layer (or in a
> table).
> In the expression builder there are the fields of the active layer.
> 
> Is it possible to call the fields of other layers?
> 
> Thanks
> 
> Cheers
> 
> Matteo

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