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From: | Yves Renard |
Subject: | Re: [Getfem-users] level set function |
Date: | Tue, 08 Apr 2014 16:39:43 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
Dear Irene,
The level-set function should be approximatively a signed distance to the hole boundary. So that you cannot just set the value of level set to 1 or 0. If your function is not close to a signed distance. The standard way is to use a reinitilization of the level-set using a Hamilton-Jacobi equation to make it evolves toward a signed distance and preserving the 0 level-set. An exemple of such a reinitialization can be found in the example interface/tests/matlab/demo_structural_optimization.m Regards, Yves Le 08/04/2014 10:34, ing.ire a écrit :
-- Yves Renard (address@hidden) tel : (33) 04.72.43.87.08 Pole de Mathematiques, INSA-Lyon fax : (33) 04.72.43.85.29 20, rue Albert Einstein 69621 Villeurbanne Cedex, FRANCE http://math.univ-lyon1.fr/~renard --------- |
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