You can move one or more selected objects to any material group. Right click on the highlighted selection and select '''Move To > Physical Optics >''' from the contextual menu. This opens another sub-menu with a list of all the available surface groups already defined in PO Module. Select the desired surface group, and all the selected objects will move to that group. The objects can be selected either in the project workspace, or their names can be selected from the Navigation Tree. In the latter case, make sure that you hold the keyboard's '''Shift Key''' or '''Ctrl Key''' down while selecting a material group's name from the contextual menu. You can also move one or more objects from a PO surface group to EM.Cube's other modules, or vice versa. In that case, the sub-menus of the '''Move To >''' item of the contextual menu will indicate all the EM.Cube modules that have valid groups for transfer of the selected objects. '''Note that in EM.Cube, you can import external CAD models (such as STEP, IGES, STL models, etc.) only to CubeCAD. From CubeCAD, you can then move the imported objects to any other computational module including PO Module. '''
[[File:PO22(1).png|800px]]
Figure 1: Moving objects between different surface groups in PO Module.
You can run an angular sweep only if your project has a plane wave excitation. In this case, you have to define a plane wave source with the default settings. During an angular sweep, either the incident theta angle or incident phi angle is varied within the specified range. The other angle remains fixed at the value that is specified in the '''Plane Wave Dialog'''. You have to select either '''Theta''' or '''Phi''' as the '''Sweep Angle''' in the Angle Settings Dialog. You also need to set the start and end angles as well as the number of angle samples.
In a parametric sweep, one or more user defined [[variables ]] are varied at the same time over their specified ranges. This creates a parametric space with the total number of samples equal to the product of the number of samples for each variable. The user defined [[variables ]] are defined using EM.Cube's '''[[Variables ]] Dialog'''. For a description of EM.Cube [[variables]], please refer to the "Parametric Modeling, Sweep & [[Optimization]]" section of EM.Cube Manual or see the "Parametric Sweep" sections of the FDTD or [[Planar Module]] manuals.
[[File:po_phys52.png]] [[File:po_phys54.png]]