TODO

As of 16-Oct-2023:

In GramsReadoutSim or GramsElecSim, we may have to model induced charge on adjacent pixels.
There's no trigger logic in GramsElecSim; this may have to wait until the optical and veto detector code is implemented. Updated Jun-2024: This proposed functionality will probably be moved into a different separate program, GramsTriggerSim.
Cluster time
- In GramsDetSim, the cluster arrival time at the anode can be calculated to be negative in the DiffusionModel. This is probably a geometry issue, either in the GDML file definition or the value of ReadoutPlaneCoord in the options.xml file.
- We'll probably investigate this further when we have a better idea of the final geometry of the GRAMS detector.
Scintillator hits
- It would be handy to provide a two-way map of strip geometry to (x,y,z).
ROOT
- Can ROOT read the Geant4 GDML file directly?
  - Answer: As of ROOT 6.20, the answer is no. It must be parsed with ./gramsg4 --gdmlout first.

Resolved issues:

Analysis features
- GramsG4 writes a ROOT TGeoManager version of the detector geometry to the output file. Propagate this behavior so that subsequent job steps copy the geometry to their output as well.
- Resolved Oct-2023.
Multi-threaded execution
- Test the saving and restoring of random-number states.
- Resolved Oct-2022.
Multi-threaded execution no longer causes the program to crash.
UI display
- Does OpenGL support display of hit/track information on mouse hover?
  - Answer: OpenGL does not. HepRep does, and we now provide an example of how to make this work.
- Can we add some kind of axis labels?
  - Answer: Yes. The G4 macro command is /vis/scene/add/axes 0 -2.5 0 1 m. See mac/vis.mac for details.
ROOT
- Ntuples have been replaced by structured TTrees for better-organized MC truth information.
- Resolved Jun-2024.