CBM at SIS18, hadron setup

DE contribution in mcbm geometry repository.

An setup with just the STS and TOF detectors. First three
stations of the STS removed. Basic platform at shifted position.

setup/setup_sis18_hadron.C

+/** ROOT macro to define the CBM setup sis18_hadron
+ **
+ ** Contains: MVD + STS + TOF
+ **
+ ** @author Volker Friese <v.friese@gsi.de>
+ ** @author David Emschermann <d.emschermann@gsi.de>
+ ** @date   5 February 2016
+ **
+ **/
+
+// 2022-03-24 - DE - Prepare SIS18 setup: 5 downstream layers of STS + TOF @ 4.6 m
+// 2022-02-17 - EC - Places PSD in its parking position
+// 2021-12-15 - EC - Candidate DEC21 geometries for testing.
+// 2020-04-23 - FU - Use exported TOF geometry v16d (same as v16c but
+//                   different file format
+// 2017-11-24 - VF - New default v16g for STS (unit-based)
+// 2017-11-20 - DE - use TRD v17n as new default
+// 2017-05-22 - DE - use TRD v17c as new default
+// 2016-06-27 - DE - use STS v16x as new default, see issue #647
+// 2016-05-19 - VF - Add platform module
+// 2016-02-25 - DE - use STS v16c as new default
+// 2016-02-05 - VF - Replaces former sis100_hadron_setup.C,
+//                   now using the CbmSetup class.
+// 2015-12-11 - DE - use STS v15c as new default
+// 2015-07-20 - FU - magnet v15a is v12b with correct keeping volume material
+// 2015-07-20 - FU - add material budget files
+// 2015-03-13 - DE - use STS v13y with correct ladder orientation as new default
+// 2015-01-29 - DE - use chopped PIPE v14q as default
+// 2015-01-19 - DE - use TRD v15a as new default
+// 2014-06-30 - DE - make TRD v14a the new default
+// 2014-06-25 - DE - define digi files through tags for STS, TRD and TOF
+// 2013-11-05 - DE - switch to trd_v13p geometry
+// 2013-10-11 - DE - add empty string defining the platform
+// 2013-10-07 - DE - pipe_v13c.geo fixes overlap with TOF, fills RICH section
+// 2013-11-04 - VF - make STS v15b the new default
+
+
+void setup_sis18_hadron()
+{
+
+  // -----  Geometry Tags  --------------------------------------------------
+  TString magnetGeoTag    = "v21a";
+  TString pipeGeoTag      = "v21d";
+  TString stsGeoTag       = "v21e_sis18";
+  //  TString trdGeoTag       = "v20c_1h";
+  TString tofGeoTag       = "v21b_1h_sis18";
+  //  TString psdGeoTag       = "v22c";
+  TString platGeoTag      = "v22a";
+  // ------------------------------------------------------------------------
+
+
+  // -----  Magnetic field  -------------------------------------------------
+  TString fieldTag      = "v18a";
+  Double_t fieldZ       =  0.;            // field centre z position
+  Double_t fieldScale   =  1.;            // field scaling factor
+  // ------------------------------------------------------------------------
+
+  // -----  Create setup  ---------------------------------------------------
+  CbmSetup* setup = CbmSetup::Instance();
+  if ( ! setup->IsEmpty() ) {
+  	std::cout << "-W- setup_sis100_hadron: overwriting existing setup"
+  			      << setup->GetTitle() << std::endl;
+  	setup->Clear();
+  }
+  setup->SetTitle("SIS100 - Hadron Setup");
+  setup->SetModule(ECbmModuleId::kMagnet, magnetGeoTag);
+  setup->SetModule(ECbmModuleId::kPipe, pipeGeoTag);
+  setup->SetModule(ECbmModuleId::kSts, stsGeoTag);
+  //  setup->SetModule(ECbmModuleId::kTrd, trdGeoTag);
+  setup->SetModule(ECbmModuleId::kTof, tofGeoTag);
+  //  setup->SetModule(ECbmModuleId::kPsd, psdGeoTag);
+  setup->SetModule(ECbmModuleId::kPlatform, platGeoTag);
+  setup->SetField(fieldTag, fieldScale, 0., 0., fieldZ);
+  // ------------------------------------------------------------------------
+
+
+  // -----   Screen output   ------------------------------------------------
+  setup->Print();
+  // ------------------------------------------------------------------------
+
+}