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.n...@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 <marcomot...@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
---------------------
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