Mesh aspect ratio not used when meshing on extrusion

(Menno Deij - van Rijswijk) #1

When I try to create a mesh on an extrusion, the required aspect ratio is not used. This leads to an undesired mesh with mesh faces of high aspect ratio.

Mesh on extrusion (Cylinder 0 10 10)

Mesh on surface created from extrusion

Meshing Nurbs problem
I need to "divide" a cylinder in order to mesh it with more detail
(John Brock) #2

Actually, it’s not a bug. It is intentional behavior. I can’t currently recall why it was special cased to act that way, but it was to fix or avoid some other problem.

Is it important enough for you that I go find out so you understand why?
I’m pretty sure the unique behavior will not be changed.

(Menno Deij - van Rijswijk) #3

If it is not a bug, but a feature then maybe could you tell me how to convert an extrusion to a surface? I really had to struggle by first trimming the extrusion, which turns it into a surface, followed by untrimming the trim to get the surface of the extrusion.

(Pascal Golay) #4

Hi Menno- use ConvertExtrusion (or Explode/Join) to convert extrusion to polysurfaces. Also, if you do not want Rhino to create extrusions, set this with the UseExtrusions command.


(Menno Deij - van Rijswijk) #5

@pascal thanks for the name of the command, that is really helpful.

(Brian Gillespie) #6

@dalelear, is this difficult to fix? @bobmcneel, is this a “paper cut”?

(Bob McNeel) #7

Yes. This is a paper cut.

I already reported this.

Watch the training video link to see how we screw up the user/salesperson.


I guess we had to be there…
[don’t you guys eat lunch around the same table? :∙]