The tree protection zone is the area around the tree that should be fenced off, or preserved, to protect the tree. The tree protection zone moves with the tree trunk location. The zone can be irregular or circular; irregular zones can be reshaped. The TPZ Area displays the calculated area for the entire tree protection zone.
To specify the tree protection zone:
From the Object Info palette of a selected existing tree, select the type of Tree Protection.
Click to show/hide the parameters.
An irregular tree protection zone may need to extend beyond the initial boundary shape. To reshape the tree protection zone:
Select Edit Irregular Zone from the Tree Protection parameter.
The tree protection zone displays with editing handles.
Drag the handles to reshape the zone. Adjust the radius at the corners of the zone with the TPZ Cnr Radius value, which only displays during zone editing.
When reshaping is finished, select Display Irregular Zone from the Tree Protection parameter.
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