Size and Rotation can be defined by an expression for all symbol levels composing a marker. Width can be defined by an expression for all symbols composing a line.
For symbols, a legend is generated for varying sizes. This allows multivariate analysis legend in the case of classified/graduated colors.
An assistant, with preview, is accessible through the data defined button to help the user define the size expression. Three methods are available: Flannery, Area and Radius.
This feature was developed by: Vincent Mora (Oslandia) This feature was funded by: Agence de l'eau Adour-Garonne