I have several features I want exported as individual images. I am using Print composer and the export process was successful, but the output shows generic filenames like
It obviously came from the default value of
'output_'||@atlas_featurenumber under Atlas generation > Output filenames expression:
I am not familiar with what expression to use. How can I make each feature's
name column (from the layer's attribute table) as the filename of its exported image?