Create mesh from step file in gmsh

Step file: tube_r.step.tar.gz

Merge "tube_R.step"; lc = 7; // taille par default Field[1] = MathEval; Field[1].F = lc; Physical Surface("inner") = {2}; // creer un nset //+ Physical Volume("all") = {1}; // define zones where to refine the mesh Field[2] = Attractor; Field[2].NNodesByEdge = 20; Field[2].EdgesList = {7,9}; Field[3] = Threshold; Field[3].IField = 2; Field[3].LcMin = lc / 3; Field[3].LcMax = lc; Field[3].DistMin = 10.; Field[3].DistMax = 20.; Field[4] = Min; Field[4].FieldsList = {1,3}; Background Field = 4;

This gives: