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<p class="MsoNormal"><span style="color:#1F497D">Hi Andreas<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">That’s excellent, thanks so much, I never thought about joining tables. The virtual layer works really well.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Again I’m not sure if I’m doing something wrong or a bug but some of the atlas variables aren’t working as expected:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">atlas_feature and atlas_featureid return <feature: 0> and 0 respectively no matter which atlas page you’re on. atlas_featurenumber, atlas_filename, atlas_pagename all work as they should.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I have got round this by using atlas_pagename (set using the name attribute) in the data defined layer settings (I had been trying attribute( @atlas_feature , 'name')).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="color:#1F497D">Cheers<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="color:#1F497D"><br>
Tom<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:EN-GB">
Qgis-user [mailto:qgis-user-bounces@lists.osgeo.org] <b>On Behalf Of </b>Andreas Neumann<br>
<b>Sent:</b> 01 March 2016 20:12<br>
<b>To:</b> qgis-user@lists.osgeo.org<br>
<b>Subject:</b> Re: [Qgis-user] Layer driven Atlas<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hi Thomas,<br>
<br>
You will need a table with a record per page for the atlas coverage layer.<br>
<br>
So if, f.e. you have a table with administrative units (with geometries) and a table with temporal layers (e.g. an ortho-image every 5 years or so) you will need to do a cross-join between the two tables.<br>
<br>
See <a href="http://www.tutorialspoint.com/sqlite/sqlite_using_joins.htm">http://www.tutorialspoint.com/sqlite/sqlite_using_joins.htm</a><br>
<br>
You can use the new Virtual layer feature from QGIS 2.14 to create such a layer on-the-fly without having to store a separate layer. Let us know if you need help on the virtual layer.<br>
<br>
Hope this helps,<br>
Andreas<o:p></o:p></p>
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<p class="MsoNormal">On 01.03.2016 16:58, Thomas Colley wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hi everyone<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I was just looking through the changelogs and got really excited when I saw data defined control over map layers! (<a href="http://www.qgis.org/en/site/forusers/visualchangelog212/index.html#feature-data-defined-control-over-map-layers-and-style-presets">http://www.qgis.org/en/site/forusers/visualchangelog212/index.html#feature-data-defined-control-over-map-layers-and-style-presets</a>)<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">This is exactly what I’d been asking about on the list last year (<a href="http://lists.osgeo.org/pipermail/qgis-user/2015-August/033211.html">http://lists.osgeo.org/pipermail/qgis-user/2015-August/033211.html</a>) so thanks so much to
Nyall for adding this functionality!<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">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.
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks again for adding this, it’ll be a massive time saver for us!<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Tom<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB"><br>
<br>
<br>
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
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