Geometry can be defined using two types of source data:

The geometry of the blades and main passage can be made using either type of source data. The geometry of any secondary flow paths must be made using CAD data.

After you have finished creating the geometry, you may want to hide some or all of it in the Mesh workspace to allow you to see the topology clearly. You can control the visibility of a geometry object by toggling the check box next to the object in the object selector. You can also right-click an object and use shortcut menu commands. The toolbar allows you to hide and unhide all geometry objects via the Hide all geometry objects   and Unhide_geometry_objects   icons.