This function enables the user to import outline and add the outline in the current database into the list.
IMPORT LINE
Click this button to display the Import File dialog box. Add the imported line into the list and it can be edited as the current outline. Imported file formats of IGES and LIN are supported. If there is surface and 3D line in the file, the program will automatically perform filtering.
ADD LINE
Click this button to display the Select Line dialog box. The user is allowed to select the desired line to define as outline and add it to the current outline in the list.