<html><head></head><body><div class="ydpd6cba102yahoo-style-wrap" style="font-family:courier new, courier, monaco, monospace, sans-serif;font-size:16px;"><div>Dear all.</div><div><br></div><div>I want to generate a mesh for the surface given by z=f(x,y) for x and y in [-1, 1]x[-1, 1]. In particular, I have z = sin(pi*x)*cos(pi*y).</div><div><br></div><div> Currently, I use Numpy to create a mesh grid of points in the x-y plane and create their 2D Delaunay Triangulation (using scipy). Then, I loop over all the points and set their z-coordinate as per z=f(x,y). But in regions of high curvature, the triangles become elongated so I am forced to increase the number of points in the x-y grid. I also used a mesh optimization package from PyPi called optimesh to improve the aspect ratio of the triangles but it results in a reduction of surface area of the mesh by around 5%.</div><div><br></div><div>Can anyone kindly share or point me to any gmsh tutorial / example that shows how to generate a mesh for a 3D surface such that the mesh density increases in regions of high curvature?</div><div><br></div><div>Thanks and regards,</div><div>Amit<br></div></div></body></html>