[Gmsh] Extrusion along a complex guiding path
Lucas Blattner Martinho
lucas.blattner at gmail.com
Wed Mar 4 13:57:04 CET 2009
Dear Gmsh developers and users,
I am trying to build the volume of a hanging transmission line
conductor with Gmsh. The conductor should be a solid cylinder of
parallel circular faces with its lenght twisted in the shape of a
catenary.
The approach that I first considered was:
1) Create evenly spaced points in a direction, each of them with
appropriate height, so that they describe the catenary's shape.
2) Build a Spline through these points.
3) Extrude a circular surface through the path given by the Spline,
generating the desired volume.
However, I have checked Gmsh's documentation and noticed that
extrusion is only possible through a combination of translations along
straight lines and rotations around an axis.
Isn´t it possible to extrude a surface using more complex line shapes
(other than a straight line) as a guiding path? If not, would an
alternative way of building this shape exist?
Yours faithfully,
Lucas Blattner Martinho
Laboratório de Eletromagnetismo Aplicado - LMAG
Escola Politécnica da Universidade de São Paulo
São Paulo, Brasil