Importing cell structures to oommfc

[Kannan]

Dear All,

                  I am a  new user to oommfc. I am trying to import an autocad image file to oommfc. bascially, this image will be the device structure which i have to subdivide into various materials for further simulation. can anyone help me with importing such an image to oommfc. any document related to this would be of great help. thanks in advance