Here are some simple concept level design skyscrapers to make city or game designs with. The SKyscraperFX for SketchUp software and info that made them is also available in the model library links.

https://3dwarehouse.sketchup.com/user.html?id=ddeada2d-3c07-485c-b143-f66b624d798b%26amp;login=true%26amp;nav=models

I'm creating a few arcs, as will be shown in the example pic, with this code:

c1 = Pt(0) 'cen
r1 = Pt(1) 'rad
sa = Pt(2) 
ea = Pt(3)


wshShell.SendKeys "centerpoint = Geom;;Point3d.new" & "{(}" & c1 & "{)}" & vbCr
wshShell.SendKeys "vector = Geom;;Vector3d.new 0,0,1" & vbCr
wshShell.SendKeys "vector2 = Geom;;Vector3d.new 1,0,0" & vbCr

wshShell.SendKeys "vector3 = vector.normalize!" & vbCr
wshShell.SendKeys "model = Sketchup.active_model" & vbCr
wshShell.SendKeys "entities = model.active_entities" & vbCr
wshShell.SendKeys "edges = entities.add_arc " & "centerpoint," & "vector2, vector3," & r1 & "," & sa & "," & ea & vbCr

(That code runs through 4 arcs in an array, pt changing per entity to be created.)

The oddity is, a certain arc wants to reverse the orientation, all driven from the same code, all in the same overall loop of points. Just

one arc does this, all the time. Same problem if I reverse the sa and ea.

Any idea why this is happening?

Thanks