Iso-lines Heat Method

[petrasvestartas]

Hi,

In the documentation of the heat method ISO-LINES are visualized with texture.
Is there an example in CGAL that allows the extraction of polylines from the triangle mesh using after the heat method is applied?
I am referring to this package: https://cgal.geometryfactory.com/CGAL/doc/master/Heat_method_3/index.html#Chapter_HeatMethod:

I am referring to the marching triangles algorithm, but with properly joined lines: