Trees on Site Models - Problem

[Jack2022]

Hi All,

 

I'm struggling to understand how trees work on site models. If I give a tree a Z value it doesn't correspond to the site model level. For the tree Z0 is Z0 but the tree either comes in way too low or high when I give it the same Z value as the site model. Is it something to do with send to surface? If I tell the tree to send to surface nothing happens. 

 

Any help would be much appreciated.

 

Jack

[Hans-Olav]

Hi, Im guessing here (-:

It might be that the layers with the trees and the layer with the model have different elevation. Check your layer settings in the Organization dialog.

[Tom W.]

A Plant inserted over a Site Model will automatically Send to Surface but the resultant Z value will not be reflected in the OIP - not sure why. If you send other objects to surface the Z value changes accordingly. I often lower my trees by 100mm after inserting to ensure no part of the trunk is floating above the terrain which suddenly becomes apparent when you have shadows. Then it will say -100 in the OIP. And running Send to Surface will return the plant to the surface of the terrain + the OIP will show 0 again. So not sure why in your case Send to Surface is having no effect... 

[Jack2022]

Thanks both. I've come to discover when you use site models Landscape Areas and plants need to be Z0 and the site model doest the work. 

 

If it doesn't work - recreate stuff.