How do I Create a Sloped Background Polygon
Airport background polygons are set flat by default but they can be set to allow each vertex to have its own altitude thus creating a sloped polygon
Open the properties of an airport background poly
Create or open an airport background polygon
- Check the box to Edit Individual Points (Vertex)
- Make sure that it is an airport background poly
- Choose a type of airport background poly that flattens
- Click OK to save the changes
Edit a vertex
Select the vertex you want to edit and hit the Enter Key. The Altitude box (which is read only without the Edit Individual Points checked) can be edited. So change this to the new altitude and Click OK
Check the altitude of the vertex
This vertex now has its own altitude
Creating the slope
Make sure that you change each vertex to be the altitude you want. If you are creating more complex slopes then the most common method is to use a series of triangular polys. How to do this is outside the scope of this article
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