top level connections of detection elements, including information
about DDLs, bus patches and also trigger configuration.
+\section mapping_s0 Mapping in OCDB
+
+The mapping is everywhere in the MUON code loaded from
+OCDB. In case the mapping data files are changed, the mapping
+in OCDB has to be regenerated in this way:
+
+For changes in mapping/data:
+<pre>
+$> rm $ALICE_ROOT/OCDB/MUON/Calib/MappingData/Run0_999999999_v0_s0.root
+$> cd $ALICE_ROOT/MUON
+$> aliroot
+root [0] AliMpCDB::WriteMpData();
+</pre>
+
+For changes in mapping/data_run:
+<pre>
+$> rm $ALICE_ROOT/OCDB/MUON/Calib/MappingRunData/Run0_999999999_v0_s0.root
+$> cd $ALICE_ROOT/MUON
+$> aliroot
+root [0] AliMpCDB::WriteMpRunData();
+</pre>
+
+Note that mapping has to be loaded from OCDB almost each time
+when using MUON classes; the loading of mapping depends on
+the CBD manager state (the current run number, storage ...).
+The standard way of loading mapping expects the CDB manager
+in a state well defined beforehand; this way is used in
+the MUON code:
+<pre>
+if ( ! AliMpCDB::LoadDDLStore() ) {
+ AliFatal("Could not access mapping from OCDB !");
+}
+</pre>
+In the same way, you can load AliMpManuStore, when manu serial
+numbers are needed:
+<pre>
+if ( ! AliMpCDB::LoadManuStore() ) {
+ AliFatal("Could not access run-dependent mapping from OCDB !");
+}
+</pre>
+In the interactive Root session, in case the CDB manager state is
+not defined, you can load mapping from the local OCDB files in this
+way:
+<pre>
+root [0] AliMpCDB::LoadDDLStore2();
+root [2] AliMpCDB::LoadManuStore2();
+</pre>
+
\section mapping_s1 Graphical User Interface
To use the GUI to plot DE segmentation run:
-<pre>
+<pre>
+AliMpCDB::LoadDDLStore2();
+AliMpCDB::LoadManuStore2();
new AliMpDEVisu();
</pre>
or
<pre>
+AliMpCDB::LoadDDLStore2();
+AliMpCDB::LoadManuStore2();
new AliMpDEVisu(w, h);
</pre>
</pre>
-\section mapping_s3 Data files format
+\section mapping_s3 Data files in mapping/data
+
+The directory data in $ALICE_ROOT/MUON/mapping contains files
+with data which are not supposed to be changed in a long period.
\subsection mapping_s3_sub1 zones.dat
To generate this file, the macro MUONGenerateBusPatch.C could be used.
-\subsection mapping_s3_sub8 crate.dat
+\subsection mapping_s3_sub8 BusPatchSpecial.dat
+
+Lines starting with # are comments.
+
+Contains the list of bus patches which manu readout is
+not in the standard order. The format:
+
+<pre>
+KEYWORD DDLs BusPatches [ManuIDs}
+ where KEYWORD = REVERT or EXPLICIT
+</pre>
+
+- For the bus patches following the REVERT keyword,
+ the manus are just reordered in a reverted order.
+- For the bus patches following the EXPLICIT keyword,
+the manus filled with a standard procedure (using the DetElemIdToBusPatch.dat
+file) are replaced with the list of manus in this file.
+
+
+\subsection mapping_s3_sub9 BusPatchLength.dat
+
+Lines starting with # are comments.
+
+Contains the list of bus patches and their cable length in meters
+
+<pre>
+# DDL 0
+ 1 3
+ 2 3
+...
+</pre>
+
+
+\subsection mapping_s3_sub10 crate.dat
Muon trigger electronics configuration file (decoded in class
AliMUONTriggerCrateStore) directly copy/paste from the ALICE PRR
(used in the algorithm).
-\section mapping_s4 Units used
+\subsection mapping_s3_sub11 ManuSerialToBin.dat
+
+Lines starting with # are comments.
+
+Contains the manu serial number with their associated bin number, injection and calibration gain.
+
+To compare the bin number with the serial in the CDB database you can run the macro:
+
+<pre>
+AliMpCDB::LoadDDLStore2();
+.L $ALICE_ROOT/MUON/mapping/macros/MUONCheckManu.C+
+MUONCheckManu(10, kFALSE);
+</pre>
+
+The function has two parameters, the first is the number of the chamber (zero mean all chambers).
+The macro can create a set of histogramms with the different gain distributions stored into a root file
+(second parameter).
+
+Two files a generated: one with the list of manu per detection element with their associated bin and gain
+value, the other with the bad, strange or unidentified serial number.
+
+
+\section mapping_s4 Data files in mapping/data_run
+
+The directory data_run in $ALICE_ROOT/MUON/mapping contains files
+with data which are expected to change during experiment.
+At present time, there are only files with manu serial numbers:
+
+\subsection mapping_s4_sub1 deName_manu_dat.dat
+
+Contains the list of manuIds and their serial numbers.
+
+<pre>
+# Id bp/nbp serial
+1 bp 4615
+2 bp 4616
+...
+</pre>
+
+\section mapping_s5 Units used
Lengths are in centimeters.