Hello, Amin. >If you don't mind I would like to ask you another question, that is - whether >it is possible to define Line >Loops using Spline/Bspline curves which makes a >surface with more than 4 edges.
I think it is impossible. The manual sais:
Ruled Surface ( expression ) = { expression-list } < In Sphere { expression } >;
Creates a ruled surface, i.e., a surface that can be interpolated using
transfinite interpolation. The expression inside the parentheses is the ruled
surface's identification number; the first expression-list on the right hand
side should contain the identification number of a line loop composed of either
three (!) or four (!) elementary lines. The optional In Sphere argument forces
the surface to be a spherical patch (the extra parameter gives the
identification number of the center of the sphere).
>I am willing to make a 3D grid around a NURBS surface (in .igs format) which
>is made up of several >surfaces defined by BSpline curves. I am trying to make
>those surfaces Transfinite and after making those >transfinite I am hoping to
>extrude those surfaces so that it makes a 3d grid. But I am finding it
>difficult to >define those NURBS surface components into Transfinite surfaces
>(I am trying to make structured grid).
I'm not sure that I understood your question rightly but I attach an example
where I created a Transfinite Surface bordered by four BSpline lines. Hope this
helps.
Mikhail Artemiev
amin2.geo
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