I have a line layer with 8 features and a field TYPE (5 features is type_A and 5 features is type_B). I want to create a atlas which output is two single image (one is grouped by typ_A with 5 features, other is grouped by type_B with 3 features) by using Rule-based Symbology to control the features showing or not. But it seems the atlas create 8 single images not what I want. So is there a way to achieve my goal?I have more than 100 features group by more than 10 different types.
I think I have found the solution to my qestion myself.In my example what I need to do is using Delete duplicates by attribute in my testA layer to generate a new layer with only two features(one is type_A,another is type_B).Next I set the coverage layer is the new layer with only two features and hidden it in the Atlas configuration .My qgis version is 3.6.3.