[Qgis-user] Atlas by year

[Andreas Neumann]

Hi, 

Atlas with combinations of two or more attributes, and/or sometimes also
feature geometries - this is a typical case for a cross-join in a
database. You would create a new view as a cross-join with all
combinations. 

But glad that you already found a solution. 

Greetings,
Andreas 

On 2019-03-26 13:43, Marco Antônio Ferreira Pedrosa wrote:

> Hi Alexandre, 
> 
> It worked perfectly! As you said: 
> 
> 1) I made a unique list from the years and generate a new feature. Then used it as the coverage layer for atlas.  
> 2) For each symboloy (rule-based): 
> (@atlas_pagename  =  "Year") AND ("Quality" = 'Excelent') 
> (@atlas_pagename  =   "Year"  ) AND ("Quality" = 'Good')  
> so on... 
> 
> As you see I changed it a little bit, so I can use the "current" year from Atlas. 
> 
> Tnks a lot! 
> 
> P.S: PORTUGAL CARALHO!!!! (sou Brasileiro haha) 
> 
> -- 
> 
> Marcão 
> 
> Em seg, 25 de mar de 2019 às 20:58, Alexandre Neto <senhor.neto at gmail.com> escreveu: You need to create a layer, with a column called year, with each year in a row. The layer does not need to have a geometry. Use that layer as the coverage layer for atlas.  
> 
> For the layer you want to filter by year, create a rule-based symbology, and use the following rule/expression: 
> 
> attribute(@atlasfeature, 'yea 
> r') = "year" 
> 
> This compares the current atlas feature field year, to the layer year column, and renders the features only if the years match.  
> 
> Hope it helps.  
> 
> Alexandre Neto 
> 
> A seg, 25/03/2019, 13:50, Marco Antônio Ferreira Pedrosa <marcomottim at gmail.com> escreveu: 
> Hi all, 
> 
> Sorry if s a silly question! 
> 
> How to generate an atlas by a value in the attibute table? (i.e: Year). QGIS Atlas would generate one map for each attribute value but not group by year. 
> 
> For each year, I want to show the features with a categorized symbology (same for all years, but I want to show just the features from that year). 
> 
> tnks in advance! _______________________________________________
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> 
> Alexandre Neto 
> --------------------- 
> @AlexNetoGeo 
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