Create curve - issue: fist and last vertex connected

Coreform Cubit Geometry
#1

Dear Coreform team,
I am creating a curve using this command: create curve vert … spline
However, the first and last vertexes at the two ends are connected (as in the attached figure below). How can I ask cubit to skip connecting the first and last vertexes?

Screenshot 2021-11-25 at 09.59.42
Screenshot 2021-11-25 at 09.59.421360×504 3.59 KB

Thanks a lot for your help!

#2

Any chance you repeat the first point at the end? Journal file or command that you use would be helpful.

Best,
Hom

#3

Hi Hom,
Thanks for your reply!
no, the first point is not repeated in the last. Please find attached the vert and the curve creation lines:

Thanks a lot

nodes_curve.txt (4.9 KB)

#4

I don’t know which version you are using but the attached journal file runs fine with the latest version.

Best,
Hom Nathnodes_curve.jou (5.3 KB)

#5

I have purchased version 2020.2.
How can I update my version in order to be able to go on with my project?

Regards
Karim

#6

That journal file runs fine on version 2020.2 as well.

#7

Hi,

The GUI chooses to implement this as

create curve spline vertex 1 to 100

rather than
create curve vert . . . spline

What I am seeing is that in the form you are using, it is assuming the first and last points are given first. The correct form of the command in that case would be
create curve vertex 1 100 2 to 99 spline

This is a documentation error. It does not state that the start vertex and end vertex should be listed first. Prefer the command syntax used by the GUI, `create curve spline vertex <id_list>.

Thanks,
Karl

#8

Thanks so much Karl! Much appreciated!
Karim