Draw model geometry by running COMSOL with Matlab

By running COMSOL with Matlab, one can create geometry objects with COMSOL script. The introduction to corresponding functions is in the documentation "COMSOL Multiphysics MATLAB Interface Guide". Once the operations are done in Matlab, geometry objects in Matlab workspace will appear in COMSOL geometry objects import dialog box. Then they are ready to be imported into COMSOL.