I'm using QGIS 3.4 for this, and am creating a map that will see quite a lot of use. It will show plant species, and the area of the plants in question.
For this, we have a main "plant" table. This contains all the plants, their species, and their area. Which sounds easy enough.
However, we are going to be filtering on the "plant" table to generate specific maps (eg "Plantation"=31). There are also 50+ species of plants, so what I'd ideally like is to have a legend which will update itself as to what species are being shown, along with their symbology, and also their summed area.
Any idea how best to go about this? I've tried using virtual layers but keep running into issues. Maybe using an Atlas? Or if there's a way to "carry over" the symbology into a table on the layout (that one would make it sooo much easier).