[Qgis-user] Layer driven Atlas

[Thomas Colley]

Hi everyone

I was just looking through the changelogs and got really excited when I saw data defined control over map layers! (http://www.qgis.org/en/site/forusers/visualchangelog212/index.html#feature-data-defined-control-over-map-layers-and-style-presets)

This is exactly what I'd been asking about on the list last year (http://lists.osgeo.org/pipermail/qgis-user/2015-August/033211.html) so thanks so much to Nyall for adding this functionality!

I'm not 100% sure that I'm using it in the correct way though. I have managed to achieve it by duplicating my atlas coverage features so that there is one feature per layer with an attribute holding the layer name. I then use the attribute in the data defined layers option.

Is this the way to do it or am I missing something? I wasn't sure where/if the 'set layer list from a visibility preset' should come into play.

When I first read the post I thought that the | separated list of layers would be cycled through one by one but then realised that they'd all be displayed together.

I have a static list of 20 or so layers to cycle through for each site so ideally if I could specify a list of layers (or visibility presets) to loop through that would be amazing.

Failing that I can write a little plugin to take a selected feature and create a scratch layer with the feature duplicated with the layer attribute values.

Thanks again for adding this, it'll be a massive time saver for us!

Tom

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