- The outer tracker barrel's 2 layers are commented out
- The subsystem is then properly constructed in the acts geometry
- There is probably a small bug in this part of the barrel which is
inconsistent with the way ACTS constructs its tracking geometry

- Todo: merge the repeated ids into a single detector construction if
  possible

	modified:   compact/definitions.xml

The ACTS layers cannot have overlapping surfaces.
This will likely go away in future when the concept of "layers" is
removed from ACTS geometry.

This allows for a frame to be defined as the subtraction of 2 trds.

miguelignacio authored 3 years ago and Whitney Armstrong committed 3 years ago

adding Fe/Sc HCal model (barrel, both endcaps); moving the HCal display parameters from display.xml to hcal.xml