[Qgis-user] Text styling and placement

[Andreas Neumann]

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Hi Andrew,

Are you using Postgis as a data source? If yes, you can set up views
containing the styling attributes based on rules. Also, the view can
help to set data read only.

In QGIS you can combine fixed with dynamic attributes. E.g. you can set
the text color fixed, but the rotation and size dynamically.

Be sure to use the new labeling engine - the one with the "ABC" button,
not the one in the layer properties.

I agree though, that it would help to set "rules" for labeling in QGIS,
e.g. different settings for different scale ranges - similar to the rule
based renderer. This would help to significantly reduce the nr of layers
needed for labeling.

Andreas

On 08/11/2011 06:08 PM, Andrew Chapman wrote:
> I'm using 1.7.0 and trying to define a set of styles for use with text
> layers (point shapefiles). There are thousands of such layers (UK Ordnance
> Survey) which use attribute codes to classify logical types of text.
> What I ideally want to do is use a unique attribute value in a similar way
> to styling a point, but for the text, i.e. say set text colour, font, bold,
> etc based on a logical attribute value rather than having additional
> attributes per feature. The same layer may need to be styled in several
> different ways depending on use (e.g. black and white, high contrast, etc)
> so adding further attributes isn't attractive. Also, as these should be
> non-changeable layers for most users, it could be advantageous for them to
> be read-only.
> I could load the layer many times, each with each layer only showing (and
> therefore styling) a single logical text type, but this could add a LOT of
> layers with a major impact on rendering speed. I could save the layer as
> several layers, but this would be time consuming to do and also be much
> slower to render.
> Have I missed a trick, or is this something that I should request as an
> enhancement?
> 
> Andrew
> 
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> Qgis-user at lists.osgeo.org
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