EventDisplays
Here are two event displays and a geometry display. Pasha Murat is also working on a display based on the root TEve package. These are all informal efforts. It is a long-term plan to adopt, formalize and support one event display.
Geometry Browser
This system displays the geometry built as part of the geant model of the detector. It does not display events. It has options for cutaways, as seen in the example. It also has the option to make some volumes transparent.
EventDisplay
A display system from Ralf Ehrlich. Run from a module:
mu2e -c EventDisplay/test/EventDisplay.fcl -s ..
Controls are in the display and quite intuitive. See also doc-7905 and doc-2371
Stntuple 2-D
From Pasha Murat and Giani Pezzullo as part of the Stntuple ntuple package. Good for detailed examination of tracks and hits. See also doc-13916.
root Eve
Pasha Murat is working on a display based on TEve package (2017).