[Gmsh] high order node distribution

[jakob schwarz]

Hello,
I'm new to gmsh and I'm having some problems: For now I'm trying to get a
4th order structured 2D mesh on a simple NACA0012 wing. Creating a first
order structured grid works fine, but when I'm trying to convert it to 4th
order (or 2nd order), the nodes at the trailing and leading edges get
distorted and some interior nodes are even missing. The nodes on the
'inside' panels are evenly spaced.

I noticed that the same happens when I simply refine the 1st order mesh by
splitting. Maybe gmsh is trying to space the nodes curvature based.
I just need an evenly spaced structured grid.

Thank you for your help,
Jakob
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