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Create a mesh from polylines

Create a mesh from polylines

subs
Collaborator Collaborator
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Message 1 of 5

Create a mesh from polylines

subs
Collaborator
Collaborator

I have a set of polylines that I want to connect together into a mesh.  Sort of like lofting, except there is no path.  Just connect the cross sections together.  The reference polys come from a pointcloud of a storage tank.

I need a mesh that closely follows the surface, so I started with a closed polyline (essentially circular in shape) at the base of the tank.  Then, every few feet up the tank, I copied the previous polyline up to that level, then edited the verts so they were on the surface of the tank.  (I did all this in AutoCAD).  I now have a series of polys that go up the side of the tank.  Because I copied and edited the starting poly over and over, the vertices for each poly start at the same place (3 o'clock) and contain the same number of verts ordered in the same direction.  I assumed this could be easily connected together into a mesh, but I'm having trouble finding a command that does this.

 

Any ideas?  Thx.

Buck Wyckoff
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Accepted solutions (1)
3,104 Views
4 Replies
Replies (4)
Message 2 of 5

BenBisares
Autodesk Support
Autodesk Support

Need to see your splines to get a better idea but perhaps this workflow will do:

 

  • All all splines together using the "Attach" function in the "Editable Spline"
  • Add a Cross Section modifier
  • Add a Surface modifier
  • If everything turns black then the normals are flipped, add a Normal modifier
  • You can then convert the result into an Editable Poly to continue modeling

PolylineMesh.png



Ben Bisares
Message 3 of 5

subs
Collaborator
Collaborator
Accepted solution

Thanks for the response.  I've already solved this. The workflow is similar you what you suggested except I use the cross-section button within Editable Spline to select the curves in the proper order.  Then Surface and then turn in into an editable poly and fix the smoothing groups.  If I use the Cross-Section modifier, it connects the curves in the wrong order.

Buck Wyckoff
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Message 4 of 5

Anonymous
Not applicable

You are very Helpful man, I Don't know Why he didn't Mark your Answer as Solution !!!

 

he Marked his reply.... it looks like scam for me 🙂  , Dudes in AutoDesk gotta fix that issue . No one shall set his Answer as Solution.... unless hes talking to him self ... (Which means No Threads)

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Message 5 of 5

subs
Collaborator
Collaborator

Try reading what I said.  It is all there.

A. I thanked him for offering a solution.

B. I mentioned my own solution that works better (more flexible, less steps).

C. Then I accepted my answer as a solution so anyone searching would be sent to my solution.

D. Then I wasted time doing this to answer a reply that missed the plot completely.

Buck Wyckoff