i'm trying to render features of a feature layer based on their real world sizes. More in detail I want to display the crowns of trees based on the values of a field in the featurelayer. This already works, but there are some features that have a value of 0.00meters. So for those features i want to display a standard crownsize of 6 meters. Everything i tried so far results in the graphics scaling when zooming in or out so visual variables doesn't work for them.
Thanks for any help.