The tracking geometry is now loaded from an included ROOT file. It is the same as the geometry of DD4hep, but the sensitive nodes have been renamed to sensor# to make their identification possible.
Note that ROOT treats a TGeoManager as a global object, so loading this geometry invalidates the DD4hep description used by the remaining Marlin processors. The DD4hep is internally stored as the TGeo, so this breaks some of the Marlin. This was bypassed by "saving" the current (aka DD4hep) gGeoManager to a temporarily variable and restoring it after the ACTS geometry is created. Once the ACTS geometry is created, then it is stored using ACTS objects.
The ROOT files can be configured using the TGeoFile processor configuration parameter.
Resource File Installation
The resource files (steering examples, geometry descriptions) are now installed (during make install) to ${CMAKE_INSTALL_DATADIR}/ACTSTracking. For a normal system-wide install, this corresponds to the usual /usr/share/ACTSTracking.
Also removed the need for CONFIGURE_FILE as absolute paths are now handled by "Resource File Look-up".
Resource File Look-up
The resource file processor settings (MatFile and TGeoFile) now support relative paths. The relative path is searched for in the following order:
ACTSTRACKING_DATADIR = ${CMAKE_INSTALL_FULL_DATADIR}/ACTSTracking}, aka result of make install
The left hand side of the above is defined inside config.h using CMake's CONFIGURE_FILE. It handles running from a build directory and after installation correspondingly.
The look-up is implemented by a new ACTSTracking::findFile helper function.
Use LCTuple
Replace output of samples with LCTuple.
Cleanup Naming
Remove seed[1,2] examples as they are not useful. Also remove seed0 from name, as it is assumed to be the default.
Rename CKF processors to be more descriptive of what they do.
External Tracking Geometry
The tracking geometry is now loaded from an included ROOT file. It is the same as the geometry of DD4hep, but the sensitive nodes have been renamed to
sensor#to make their identification possible.Note that ROOT treats a
TGeoManageras a global object, so loading this geometry invalidates the DD4hep description used by the remaining Marlin processors. The DD4hep is internally stored as the TGeo, so this breaks some of the Marlin. This was bypassed by "saving" the current (aka DD4hep)gGeoManagerto a temporarily variable and restoring it after the ACTS geometry is created. Once the ACTS geometry is created, then it is stored using ACTS objects.The ROOT files can be configured using the
TGeoFileprocessor configuration parameter.Resource File Installation
The resource files (steering examples, geometry descriptions) are now installed (during
make install) to${CMAKE_INSTALL_DATADIR}/ACTSTracking. For a normal system-wide install, this corresponds to the usual/usr/share/ACTSTracking.Also removed the need for
CONFIGURE_FILEas absolute paths are now handled by "Resource File Look-up".Resource File Look-up
The resource file processor settings (
MatFileandTGeoFile) now support relative paths. The relative path is searched for in the following order:ACTSTRACKING_SOURCEDIR = ${CMAKE_SOURCE_DIR}, aka source code locationACTSTRACKING_DATADIR = ${CMAKE_INSTALL_FULL_DATADIR}/ACTSTracking}, aka result ofmake installThe left hand side of the above is defined inside
config.husing CMake'sCONFIGURE_FILE. It handles running from a build directory and after installation correspondingly.The look-up is implemented by a new
ACTSTracking::findFilehelper function.Use LCTuple
Replace output of samples with LCTuple.
Cleanup Naming
ACTSCKFTrackingProc→ACTSTruthCKFTrackingProcACTSSeedingProc→ACTSSeededCKFTrackingProc