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3D arc/elipse

3D arc/elipse

3D arc/elipse

(OP)
Is there any way to make a circle or ellipse between coordinates that are not parallel in UCS.

I'm using autodesk map 2005 but have also accsess to Autocad 2005 and ADT 2005 if that helps.

RE: 3D arc/elipse

Are you asking if it's possible to create a circle that is not  parallel to the plane of the current UCS? I don't think so, you'll have to create a new UCS and then create the circle.

RE: 3D arc/elipse

(OP)
Hi Ipseifert

The problem is that I have 4 coordinates wich is not in parallel (measured with total station on site) and it is not quite a circle, more like ellipse.

So how do I draw an oval (circle/arc like) line in 3D, or between these 4 points that i've taken from the total station.

RE: 3D arc/elipse

One way to do this is to approximate the arc with chord segments using a 3d polyline.  Some 3rd party software reduces survey data in this maner.

I did a quick Google search for 3d poly lisp routines.  It appears 3dutil.cip at http://www.cadresource.com/library/lisp0a.html
may be what you are looking for.

RE: 3D arc/elipse

you can use the points to make a new ucs, then use the points to create a 3 point circle.

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