Difference between revisions of "Specifying Alternate Versions of Calibration Constants in JANA"
From GlueXWiki
(add web reference to legal DATETIME values) |
|||
| Line 1: | Line 1: | ||
| − | |||
| − | |||
To specify an alternate version of calibration constants from CCDB, use the JANA_CONTEXT environment variable. | To specify an alternate version of calibration constants from CCDB, use the JANA_CONTEXT environment variable. | ||
The value of JANA_CONTEXT is passed to CCDB as a text string. The string may contain | The value of JANA_CONTEXT is passed to CCDB as a text string. The string may contain | ||
* variation=<variation_name> | * variation=<variation_name> | ||
| − | * calibtime= | + | * calibtime=<time> |
Examples: | Examples: | ||
| Line 13: | Line 11: | ||
JANA_CALIB_CONTEXT="variation=john calibtime=2014-05" | JANA_CALIB_CONTEXT="variation=john calibtime=2014-05" | ||
| + | |||
| + | There are many legal forms of the time; any [http://dev.mysql.com/doc/refman/5.7/en/date-and-time-literals.html acceptable definition of the MySQL DATETIME type] can be used. | ||
JANA_CALIB_CONTEXT can also be set as a command-line option to JANA, for example | JANA_CALIB_CONTEXT can also be set as a command-line option to JANA, for example | ||
Latest revision as of 20:38, 14 December 2016
To specify an alternate version of calibration constants from CCDB, use the JANA_CONTEXT environment variable. The value of JANA_CONTEXT is passed to CCDB as a text string. The string may contain
- variation=<variation_name>
- calibtime=<time>
Examples:
JANA_CALIB_CONTEXT="variation=john"
JANA_CALIB_CONTEXT="calibtime=2014-05"
JANA_CALIB_CONTEXT="variation=john calibtime=2014-05"
There are many legal forms of the time; any acceptable definition of the MySQL DATETIME type can be used.
JANA_CALIB_CONTEXT can also be set as a command-line option to JANA, for example
???
Alternate versions can also be specified directly in C++ as an argument to the GetCalib function. The argument is a string of the form </path/to/data>:<run>:<variation>:
loop->GetCalib("FDC/params:::2014-05", containerObject);
rather than the usual
loop->GetCalib("FDC/params", containerObject);
