Extrude normal problem
 

Hi,

I'm trying to extrude normal hyperbolic mesh from semi-cylinder with hemispherical cap (with a pole at it's end). At the beginning the extrusion was fine but after some attempts (which also included an increment of the grid points in the pole) the hyperbolic extusion failes in the pole area.

1. what is the required BC for the pole? is it the same as the other curves? (e.g. Symmetry Z)
2. is there any limitation for the number of grid points at the pole?

Thanks!