Hi, Can you please tell me what delaunay triangulation algorithm does gmsh use? Is it Bowyer-Watson? -- Thanks, Sathish S. Vadhiyar Assistant Professor Supercomputer Education and Research Centre (SERC) Indian Institute of Science (IISc) Bangalore - 12 India Web: http://www.serc.iisc.ernet.in/~vss Phone: 91-80-22932615 Fax: 91-80-23602648