% -*- texinfo -*- % @deftypefn {Function File} {[@var{varargout}]} = MSH2Mgeomprop(@var{mesh},[@var{string1},@var{string2},...]) % % Computes geometrical properties of the specified mesh % % Input: % @itemize @minus % @item @var{mesh}: standard PDEtool-like mesh, with field 'p', 'e', 't'. % @item @var{string1}, @var{string2},...: identifier of the property to compute. Possible choices are listed below. % @itemize @bullet % @item 'bar' (center of mass): return a matrix with size 2 times number of elements containing the coordinates of the center of mass of every trg. % @item 'cir' (circumcenter): return a matrix with size 2 times number of elements containing the coordinates of the circumcenter of every trg. % @item 'emidp' (boundary edges midpoint): return a matrix with size 2 times number of b.edges containing the coordinates of the midpoint. % @item 'slength' (length of the sides): return a matrix with size 3 times number of elements containing the length of the sides. % @item 'cdist' (distance among circumcenters of neighbouring elements): return a matrix with size 3 times number of elements containing the % distance among circumcenters of neighbouring elements. If the corresponding side lies on the edge, the distance between % circumcenter and border edge is returned in the matrix. % @item 'wjacdet' : % @item 'shg': gradient of the P1 shape functions for BIM method % @item 'area' (trg area): return a row vector, with length equal to number of elements, containing the area of every trg in the mesh. % @item 'midedge' (midpoint coordinates of every edge): return a matrix with size 2(x and y coordinates) times 3(edge number) times n of elements % containing the coordinates of the midpoint of every trg edge. % @end itemize % @end itemize % % The output will contain the geometrical properties requested in the input in the same order specified in the function call % @seealso{MSH2Mtopprop} % @end deftypefn

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