The Input GUI also provides a Geometry Display. This allows the user to view the geometry without having to run PBGUNS. Features include zooming, panning, displaying electrode/line numbers, saving/printing the image, and verifying that the geometry is connected. In the image below, the yellow circle indicates an error in the geometry input for electrode 3.

The geometry can be read from a PBGUNS input file, entered into a table, or imported from a CAD program (using the STEP format).