Hey, i want to calculate the area of trees in a city (Zürich, Switzerland), but when i do this (Python or QGIS) the result is 0. When you take a look on the map, there are many trees found with “natural=tree”. How does the calculation of Nodes work? And what is the area of the tree that is calculated - only the trunk? And maybe it’s just a really small number that the output is 0? Thanks for your help.