From: ESeNonFossiIo Date: Fri, 25 Mar 2016 11:24:21 +0000 (+0100) Subject: fix doc X-Git-Tag: v8.5.0-rc1~1168^2~1 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=352a2238ceeb1760ef2c1fe7f3d6048f15c72dc7;p=dealii.git fix doc --- diff --git a/include/deal.II/grid/grid_tools.h b/include/deal.II/grid/grid_tools.h index cdcf909050..15e1228cb7 100644 --- a/include/deal.II/grid/grid_tools.h +++ b/include/deal.II/grid/grid_tools.h @@ -357,6 +357,77 @@ namespace GridTools Triangulation &triangulation, const bool keep_boundary=true); + /** + * Remove hanging nodes from a grid. If the @p isotropic parameter is set + * to @p false (default) this function detects cells with hanging nodes and + * refines the neighbours in the direction that removes hanging nodes. + * If the @p isotropic parameter is set + * to @p true, the neighbours refinement is made in each directions. + * In order to remove all hanging nodes this procedure has to be repeated: + * this could require a large number of iterations. + * To avoid this a max number (@p max_iterations) of iteration is provided. + * + * Consider the following grid: + * @image html remove_hanging_nodes-hanging.png + * + * @p isotropic == @p false would return: + * @image html remove_hanging_nodes-aniso.png + * + * @p isotropic == @p true would return: + * @image html remove_hanging_nodes-isotro.png + * + * @param[in,out] tria Triangulation to refine. + * + * @param[in] isotropic if true refine cells in each directions, otherwise + * (default value) refine the cell in the direction that removes hanging node. + * + * @param[in] max_iterations at each step only closest cells to hanging nodes + * are refined. The code may require a lot of iterations to to remove all + * hangind nodes. @p max_iterations is the maximum number of iteration + * allowed. If @p max_iterations == 0 this function continues refining until + * there are no hanging nodes. + * + * @note In the case of parallel codes, this function should be combined + * with GridGenerator::flatten_triangulation. + * + * @author Mauro Bardelloni, Luca Heltai, Andrea Mola, 2016 + */ + template + void + remove_hanging_nodes( Triangulation &tria, + const bool isotropic = false, + const unsigned int max_iterations = 100); + + /** + * Refine a mesh anisotropically such that the resulting mesh is composed by + * cells with maximum ratio between dimensions less than @p max_ratio. + * This procedure is possibly infinite therefore it possible to set a maximum + * number of refinements, @p max_iterations. + * + * Starting from a cell like this: + * @image html remove_anisotropy-coarse.png + * + * This function would return: + * @image html remove_anisotropy-refined.png + * + * @param[in,out] tria Triangulation to refine. + * + * @param[in] max_ratio maximum value allowed among the ratio between + * the dimensions of each cell. + * + * @param[in] max_iterations maximum number of iterations allowed. + * + * @note In the case of parallel codes, this function should be combined + * with GridGenerator::flatten_triangulation and GridTools::remove_hanging_nodes. + * + * @author Mauro Bardelloni, Luca Heltai, Andrea Mola, 2016 + */ + template + void + remove_anisotropy( Triangulation &tria, + const double max_ratio = 1.6180339887, + const unsigned int max_iterations = 5); + /*@}*/ /** * @name Finding cells and vertices of a triangulation @@ -681,6 +752,21 @@ namespace GridTools compute_local_to_global_vertex_index_map( const parallel::distributed::Triangulation &triangulation); + /** + * Return the highest value among ratios between dimensions of a + * @p cell. Moreover, return the dimension relative to the highest elongation. + * + * @param[in] cell an iterator pointing to the cell. + * + * @return A std::pair such that the @p first value + * is the dimension of the highest elongation and the @p second value is the + * ratio among the dimensions of the @p cell. + * + * @author Mauro Bardelloni, Luca Heltai, Andrea Mola, 2016 + */ + template + std::pair + get_longest_direction(typename Triangulation::active_cell_iterator cell); /*@}*/ /** @@ -1695,89 +1781,6 @@ namespace GridTools } } - /** - * Return the highest value among ratios between dimensions of a - * @p cell. Moreover, return the dimension relative to the highest elongation. - * - * @param[in] cell an iterator pointing to the cell. - * - * @return A std::pair such that the @p first value - * is the dimension of the highest elongation and the @p second value is the - * ratio among the dimensions of the @p cell. - * - * @note This function works in dimension 2 and 3. - */ - template - std::pair - get_longest_direction(typename Triangulation::active_cell_iterator cell); - - /** - * Remove hanging nodes from a grid. If the @p isotropic parameter is set - * to @p false (default) this function detects cells with hanging nodes and - * refines the neighbours in the direction that removes hanging nodes. - * If the @p isotropic parameter is set - * to @p true, the neighbours refinement is made in each directions. - * In order to remove all hanging nodes this procedure has to be repeated: - * this could require a large number of iterations. - * To avoid this a max number (@p max_iterations) of iteration is provided. - * - * Consider the following grid: - * @image html remove_hanging_nodes-hanging.png - * - * @p isotropic == @p false would return: - * @image html remove_hanging_nodes-aniso.png - * - * @p isotropic == @p true would return: - * @image html remove_hanging_nodes-isotro.png - * - * @param[in,out] tria Triangulation to refine. - * - * @param[in] isotropic if true refine cells in each directions, otherwise - * (default value) refine the cell in the direction that removes hanging node. - * - * @param[in] max_iterations at each step only closest cells to hanging nodes - * are refined. The code may require a lot of iterations to to remove all - * hangind nodes. @p max_iterations is the maximum number of iteration - * allowed. If @p max_iterations == 0 this function continues refining until - * there are no hanging nodes. - * - * @note In the case of parallel codes, this function should be combined - * with GridGenerator::flatten_triangulation. - */ - template - void - remove_hanging_nodes( Triangulation &tria, - const bool isotropic = false, - const unsigned int max_iterations = 100); - - /** - * Refine a mesh anisotropically such that the resulting mesh is composed by - * cells with maximum ratio between dimensions less than @p max_ratio. - * This procedure is possibly infinite therefore it possible to set a maximum - * number of refinements, @p max_iterations. - * - * Starting from a cell like this: - * @image html remove_anisotropy-coarse.png - * - * This function would return: - * @image html remove_anisotropy-refined.png - * - * @param[in,out] tria Triangulation to refine. - * - * @param[in] max_ratio maximum value allowed among the ratio between - * the dimensions of each cell. - * - * @param[in] max_iterations maximum number of iterations allowed. - * - * @note In the case of parallel codes, this function should be combined - * with GridGenerator::flatten_triangulation and remove_hanging_nodes. - */ - template - void - remove_anisotropy( Triangulation &tria, - const double max_ratio = 1.6180339887, - const unsigned int max_iterations = 5); - // declaration of explicit specializations template <>