Physical Features – Canopies
Created from <Areal Feature> and <Polygon> objects whose classification maps to the “canopy” entry of Features File
The <Areal Features> can optionally have attributes that have been mapped to the following in the “canopy” entry of the Features File:
- “Height” for total canopy height
- “Opacity” for the attenuation of line of sight
- Zero (transparent) to One (opaque)
- “Top_Height” for top of foliage
- “Bottom_Height” for bottom of foliage
- “Penetrable” for ability to impede vehicle movement
- Zero (Not penetrable) or One (Penetrable)
The <Polygon> objects representing the canopy roof must completely cover the area defined by the corresponding <Areal Feature>