I have a map with three lines. Each has a marker on it.
I would like to reverse the direction of the topmost marker. So I open Style dialog and enter the expression
"direction" * 180. The value of direction of the topmost line is 1. Others are 0.
The result is shown below.
Two issues here:
- The angles of all markers are the same.
- The direction of the topmost marker is not reversed. (Is there a way to access a default value of 'Angle' property?)