mphxmeshinfo

Extract information about the extended mesh.

info = mphxmeshinfo(model, ...)

info = mphxmeshinfo(model,...) extracts extended mesh information from the active solution object.

The function mphxmeshinfo accepts the following property/value pairs:

Table 6-42: property value/pairs for the mphviewselection function
Property	Value	Default	Description
soltag	String	Active solution object	Solution object tag
studysteptag	String		Study step node tag
meshcase	Positive integer \| String	1	Mesh case tag

The function xmeshinfo returns a structure with the fields shown in the table below

Table 6-43: Field in the returned structure from mphxmeshinfo
field	description
soltag	Tag of the solution object
ndofs	Number of DOFs
fieldnames	Names of the field variables
fieldndofs	Number of DOFs per field name
meshtypes	Types of mesh element
dofs	Structure with information about the degrees of freedom
nodes	Structure with information about the nodes
elements	Structure with information about each element type

The extended mesh information provide information about the numbering of elements, nodes, and degrees of freedom (DOFs) in the extended mesh and in the matrices returned by mphmatrix and mphgetu.

Extract xmesh information:

model = mphopen('model_tutorial_llmatlab.mph');

std = model.study.create('std');

std.feature.create('stat', 'Stationary');

info = mphxmeshinfo(model)

Get the number of degrees of freedom and the nodes coordinates:

dofs = info.ndofs

coords = info.dofs.coords;

Get the DOFs indices connected to the tetrahedron:

idx = info.elements.tet.dofs

Retrieve the xmesh information with several physics

model = mphopen('model_tutorial_llmatlab.mph');

comp1 = model.component('comp1');

ec = comp1.physics.create('ec','ConductiveMedia','geom1');

ec.feature.create('gnd1','Ground',2).selection.set(3);

pot = ec.feature.create('pot','ElectricPotential',2);

pot.selection.set(7);

pot.set('V0',1,'50[mV]');

hs = comp1.physics('ht').feature('hs1');

hs.set('heatSourceType',1,'generalSource');

hs.set('Q_src',1,'root.comp1.ec.Qh');

std = model.study.create('std');

std.feature.create('stat', 'Stationary');

info = mphxmeshinfo(model)

Get the index of the nodes for element with the index 100:

idx_nodes = info.elements.tet.nodes(:,100)

Get the index of the DOFs for element with the index 100:

idx_dofs = info.elements.tet.dofs(:,100)

Get the index of the variables names corresponding to the DOFs with the index idx_dofs:

idx_names = info.dofsinds(idx_dofs);

Find the dofnames index corresponding to the variable V:

idx_dofnames = find(strcmp(info.dofs.dofnames,'comp1.V'))-1;

Get the list of DOFs that correspond to the variable V:

idx = find(idx_names==idx_dofnames)

Get the coordinates of the DOFs corresponding to the dependent variable V that belong to element 100:

info.dofs.coords(:,idx_dofs(idx))

mphgetu, mphmatrix, mphsolinfo, mphsolutioninfo