"MergeAllCoplanarFaces" for Cylinders

Rhino Rhino for Windows
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1

Sounds like a stupid question, but I think it gives a better idea of what I want to accomplish.

If I have a cylinder, and I extrude it on its lenght, Rhino creates/mantains a “seam line” on the point from where the extrusion started:

{13F54285-AF79-497A-B9D1-BF7C0AA76927}
{13F54285-AF79-497A-B9D1-BF7C0AA76927}316×441 21.7 KB

If I explode the geometry, it’s not considered as a single surface:

{64678ED8-3002-476A-B24A-65443ED1B8EE}
{64678ED8-3002-476A-B24A-65443ED1B8EE}293×442 23.6 KB

And if I use UnrollSrf (just after the extrusion, or after re-joining the surfaces), it’s considerated as 2 different surfaces (this is my biggest problem, as I nees to unroll the cylinders).

{70DB304E-10C7-4845-8044-761223DD22D3}
{70DB304E-10C7-4845-8044-761223DD22D3}753×285 724 Bytes

Is there a command similar to “MergeAllCoplanarFaces” to fix the surface of the cylinder, or does anyone know another method? (rebuild I think is kind of dangerous because you don’t get exactly the same geometry as before)

2

Hi Carlos -

This feature request is on the list as RH-10693 MergeAllFaces work on degree 2 surfaces

A script was posted here:

-wim

3

MergeSrf is the simplest method to merge two open cylinders into a single cylinder if the seams are aligned. If the seams are not aligned use Srfseam to move on of the seams until it aligns with the other.

4

Use Scale1D on your original cylinder?

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