COMSOL Multiphysics™

meshmap
HAUTO SCALE
FACTOR
3 0.55
4 0.8
5 1
6 1.5
7 1.9
8 3
9 5
Use the property subdomain in 2D and face in 3D to specify the subdomains/faces
to be meshed. If you use this property together with the meshstart property, the
value auto means that all subdomains/faces that are not meshed in the starting
mesh are meshed, none means that no further subdomains/faces are meshed, and
all means that all subdomains/faces are meshed (or remeshed). It is also possible
to specify the subdomains/faces to be meshed (or remeshed) using a vector of
subdomain/face indices.
The meshstart property is used when meshing a geometry interactively. The value
of this property is the starting mesh of the meshing operation.
Note that for the mapping technique to work, opposite edges require the same
number of edge elements. If this requirement is not met by the specified values in
edgelem, an error is generated.
Examples
Create a mapped quad mesh on a geometry where all subdomains are topologically
equivalent with a rectangle.
clear fem
fem.geom = rect2(2,0.98)+rect2(2,0.04,'pos',[0 0.98])+...
rect2(2,0.98,'pos',[0 1.02]);
fem.mesh = meshmap(fem,'edgelem',{[2 7] 12 [1 8] ...
[0 0.2:0.2:0.8 ...
0.86:0.04:0.98]});
figure, meshplot(fem);
Create a mapped quad mesh on a geometry with two subdomains.
fem.geom = ...
rect2+rect2(1,1,'pos',[1 0])-circ2(0.4,'pos',[1.1 -0.1]);
figure, geomplot(fem,'edgelabels','on')
fem.mesh = meshmap(fem,'edgegroups',{{1 3 2 [4 8]},...
{4 5 7 [9 10 6]}});
figure, meshplot(fem);
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