[Gmsh] Alternative to Compound Line

[Christophe Geuzaine]

> On 18 Oct 2019, at 13:25, Praveen C <cpraveen at gmail.com> wrote:
> 
> Dear all
> 
> I was using “Compound Line” in some cases which is now removed.
> 
> My use was something like this
> 
> Compound Line(10) = {5,6};
> Compound Line(11) = {7,8};
> 
> Transfinite Line{10,11} = na;
> 
> and full example is attached.
> 
> Now I have to use “Compound Curve” but this does not create a new curve number which I need as in above example.
> 
> How I can deal with this situation ?

That's indeed a use-case that the new compound meshing constraints do not cover.

I have just added a new "Compound Spline/BSpline" command so that you can achieve similar results as before; simply by creating a new Spline/BSpline curve based on sampling of the "sub curves":

Compound BSpline(10) = {5,6} Using 100; // 100 intervals on curves 5 and 6 to create control points for the bspline 10
Compound BSpline(11) = {7,8} Using 100;

Give it a try with the latest dev snapshot.

Christophe



> 
> Thanks
> praveen
> 
> <naca_struct2.geo>
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— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine