Slightly modify the 'cltest' parameter, and there will be triangles in the second square. In the example, I'm coupling a square with transfinite mesh to a square which is meshed with the Blossom algorithm. It works only for heavily tuned 'characteristic length' values, as can bee seen in the attached uber-simplified example. > Whenever a surface meshed by the Blossom algorithm intersects with a transfinite surface, the Blossom algorithm would then not recombine all triangles to quads. I also use 'Progression 0.99' to achieve some sort of scale transition in the extended direction. For these surfaces, it is very handy to use transfinite mesh. I found it impossible to set the characteristic lengths such that I get exactly two quadrilateral elements in the "thin" direction. But I have some rectangular surfaces which have a very high width/height ratio (e.g. I'm generally very satisfied with the resulting unstructured mesh. I think it does a very good job and is much faster than other quad meshers I know. > I'm currently testing the Blossom algorithm. We are currently working on the anisotropic extension for generating nice unstructured stretched meshes. So you simply need to make sure that the number of points you specify with the Transfinite commands will be compatible :-) (See the Blossom paper for more info.) Indeed, this is a due to the fact that Blossom requires an odd number of points on each edge. Next message: Structured Mesh combined with Unstructured mesh.Previous message: Triangles when using 'Transfinite Line' and Blossom algorithm.Triangles when using 'Transfinite Line' and Blossom algorithm Christophe Geuzaine cgeuzaine at ulg.ac.be Triangles when using 'Transfinite Line' and Blossom algorithm
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