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<A HREF = "index.html">[Index for ./FEM]</A> |
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<A HREF = "../index.html">[Return to Master Index]</A> |
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<H1>is_valid_struct</H1> |
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<H2>(./FEM/is_valid_struct.m)</H2> |
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<HR><H3>Function Synopsis</H3> |
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<pre>errflag=is_valid_struct(fem_grid_struct)</pre> |
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<HR><H3>Help text</H3> |
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<pre> |
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IS_VALID_STRUCT - Determine if the input structure is "valid" |
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|
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IS_VALID_STRUCT determines whether or not the input |
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structure is valid or invalid according to the |
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description of <A HREF = "../3.FEM/fem_grid_struct.html">FEM_GRID_STRUCT</A>. A valid <A HREF = "../3.FEM/fem_grid_struct.html">FEM_GRID_STRUCT</A> |
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contains (atleast) the following (NOT EMPTY) fields: |
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|
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.name - the domain name of the FEM grid |
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.e - node connectivity list (linear, triangular) [ne x 3 double] |
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.x - x-horizontal node coordinates [nn x 1 double] |
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.y - y-horizontal node coordinates [nn x 1 double] |
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.z - bathymetry list [nn x 1 double] |
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.bnd - boundary segment list [nb x 2 double] |
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|
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As a (not very rigorous) check, the maximum node number in the |
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element and boundary lists must not exceed the length of the node |
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list, and the node list ane bathymetry lists must be the same length. |
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|
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There is no way to guarantee that the data in the fields actually |
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all came from the same domain (mesh). However, if the |
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<A HREF = "../3.FEM/fem_grid_struct.html">FEM_GRID_STRUCT</A> was output from <A HREF = "../3.FEM/loadgrid.html">LOADGRID</A> or LOADG, then it is guaranteed. |
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|
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CALL: errflag=is_valid_struct(<A HREF = "../3.FEM/fem_grid_struct.html">fem_grid_struct</A>) |
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|
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Written by : Brian O. Blanton |
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Summer 1997 |
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|
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</pre> |
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<HR><H3>Cross-Reference Information</H3>This function is called by |
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<pre><UL> |
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<LI><A HREF = "../3.FEM/basis2d.html">basis2d</A> ./FEM/basis2d.m</LI> |
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<LI><A HREF = "../3.FEM/belint.html">belint</A> ./FEM/belint.m</LI> |
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<LI><A HREF = "../3.FEM/breakstruct.html">breakstruct</A> ./FEM/breakstruct.m</LI> |
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<LI><A HREF = "../3.FEM/colormesh2d.html">colormesh2d</A> ./FEM/colormesh2d.m</LI> |
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<LI><A HREF = "../3.FEM/colormesh3d.html">colormesh3d</A> ./FEM/colormesh3d.m</LI> |
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<LI><A HREF = "../3.FEM/curl.html">curl</A> ./FEM/curl.m</LI> |
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<LI><A HREF = "../3.FEM/drawelems.html">drawelems</A> ./FEM/drawelems.m</LI> |
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<LI><A HREF = "../3.FEM/drawelems3d.html">drawelems3d</A> ./FEM/drawelems3d.m</LI> |
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<LI><A HREF = "../3.FEM/el_areas.html">el_areas</A> ./FEM/el_areas.m</LI> |
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<LI><A HREF = "../3.FEM/findelem.html">findelem</A> ./FEM/findelem.m</LI> |
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<LI><A HREF = "../3.FEM/interp_scalar.html">interp_scalar</A> ./FEM/interp_scalar.m</LI> |
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<LI><A HREF = "../3.FEM/lcontour.html">lcontour</A> ./FEM/lcontour.m</LI> |
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<LI><A HREF = "../3.FEM/numbnd.html">numbnd</A> ./FEM/numbnd.m</LI> |
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<LI><A HREF = "../3.FEM/numelems.html">numelems</A> ./FEM/numelems.m</LI> |
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<LI><A HREF = "../3.FEM/numnodes.html">numnodes</A> ./FEM/numnodes.m</LI> |
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<LI><A HREF = "../3.FEM/plotbnd.html">plotbnd</A> ./FEM/plotbnd.m</LI> |
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<LI><A HREF = "../3.FEM/sample_field_2d.html">sample_field_2d</A>./FEM/sample_field_2d.m</LI> |
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<LI><A HREF = "../3.FEM/showelem.html">showelem</A> ./FEM/showelem.m</LI> |
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<LI><A HREF = "../3.FEM/vecplot.html">vecplot</A> ./FEM/vecplot.m</LI> |
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<LI><A HREF = "../3.FEM/which_elem.html">which_elem</A> ./FEM/which_elem.m</LI> |
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</UL></pre> |
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<HR> |
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