COMSOL Multiphysics™

meshinit
The properties xscale, yscale, and zscale specify scalar factors in each axis
direction that the geometry is scaled by before meshing. The resulting mesh is then
scaled back to fit the original geometry. The values of other properties correspond
to the scaled geometry. By default, no scaling is done.
Examples
3D Example
Create a 3D mesh of a cylinder.
clear fem
fem.geom=cylinder3;
fem.mesh=meshinit(fem);
meshplot(fem)
2D Example
Make a simple mesh of a unit square.
clear fem
fem.geom = geomcsg({square2(0,1,1)});
fem.mesh = meshinit(fem);
meshplot(fem), axis equal
Make the mesh finer than the default.
fem.mesh = meshinit(fem,'hmax',0.02);
meshplot(fem), axis equal
Now, make the mesh denser only near the edge segment to the left.
fem.mesh = meshinit(fem,'hmaxedg',[1; 0.02]);
meshplot(fem), axis equal
1D Example
Create a mesh on the interval [0,1] that is finer near the point 0 and grows towards
1.
fem.geom = geomcsg({solid1([0 1])});
fem.mesh = meshinit(fem,'hmax',0.1,'hmaxvtx',[1; 0.001]);
meshplot(fem)
2D Example Dealing with Interactive Meshing
Create a boundary mesh of a geometry
clear fem;
fem.geom = rect2+circ2;
fem.mesh = meshinit(fem,'subdomain','none');
meshplot(fem)
Mesh subdomain 2 using the boundary mesh as starting mesh
fem.mesh = meshinit(fem,'subdomain',2,'meshstart',fem.mesh);
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