COMSOL Multiphysics™

meshplot
The bound property group controls the display of the boundary elements. In 1D it
displays marker symbols, in 2D it displays the boundary elements as a wireframe, and
in 3D it displays the boundary elements as a patch plot. In 3D, the property dbound
makes it possible to get wireframe plots of the boundary elements.
In 3D, the curve property group controls the display of mesh elements on
geometry edges.
The point property group displays the mesh vertex elements as marker symbols in
all space dimensions.
The node property group displays the mesh vertices (node points) as marker
symbols in all space dimensions.
The properties that control marker type or coloring can handle any standard
scripting marker or color type (see the plot command). In 3D, the patch coloring
can be made according to the element quality, by specifying the color as 'qual'.
meshplot can display meshes where there are no elements on a certain element
dimension. In these cases, the default values for curvemode and nodemode change
to make the best possible mesh visualization.
Examples
3D Example
Start by creating a 3D geometry and a mesh.
c1 = cylinder3(0.2,1,[0.5,0.5,0]);
b1 = block3;
geom = b1-c1;
mesh = meshinit(geom);
Plot the mesh as a quality patch plot with parts of the elements excluded by a logical
expression. These types of options make it easy to study the mesh inside the
geometry.
meshplot(mesh,'ellogic','x+y>0.8',...
'edgecolor','qual','boundcolor',[0.7 0.7 0.7],...
'qualbar','on')
You can get a wireframe plot of the same mesh with only a fraction of the
tetrahedrons visible, by the command
meshplot(mesh,'ellogic','x+y>0.8','elkeep',1/100,...
'edgemode','off','boundmode','off',...
'dedgemode','on','dboundmode','on','curvemode','on')
The plot shows only a small fraction of the elements. It is not possible to get a mesh
quality plot by using only wireframes.
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