add CepC beam pipe construct

Detector/DetCRD/CMakeLists.txt

@@ -21,6 +21,7 @@ install(DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/compact DESTINATION Detector/DetCRD)
 
 set(DetCRD_src
     src/Calorimeter/CRDEcal.cpp
+    src/Other/CRDBeamPipe_v01_geo.cpp
 )
 
 gaudi_add_module(DetCRD

Detector/DetCRD/src/Other/OtherDetectorHelpers.h

+#ifndef Other_Helpers_hh
+#define Other_Helpers_hh 1
+
+#include <iostream>
+#include <map>
+#include <stdexcept>
+
+namespace CEPC {
+  typedef enum {
+    kCenter                     = 0,
+    kCenterSide                 = 1,
+    kWaist                      = 2,
+    kFatWaist                   = 3,
+    kCrotch                     = 4,
+    kCrotchAsymUp               = 5,
+    kCrotchAsymDn               = 6,
+    kLegs                       = 7,
+    kFlareLegUp                 = 8,
+    kFlareLegDn                 = 9
+  } ECrossType;
+  
+  inline ECrossType getCrossType( std::string const & type) {
+    std::map< std::string, CEPC::ECrossType > CrossTypes;
+    CrossTypes["Center"]                = CEPC::kCenter;
+    CrossTypes["CenterSide"]            = CEPC::kCenterSide;
+    CrossTypes["Waist"]                 = CEPC::kWaist;
+    CrossTypes["FatWaist"]              = CEPC::kFatWaist;
+    CrossTypes["Crotch"]                = CEPC::kCrotch;
+    CrossTypes["CrotchAsymUp"]          = CEPC::kCrotchAsymUp;
+    CrossTypes["CrotchAsymDn"]          = CEPC::kCrotchAsymDn;
+    CrossTypes["Legs"]                  = CEPC::kLegs;
+    CrossTypes["FlareLegUp"]            = CEPC::kFlareLegUp;
+    CrossTypes["FlareLegDn"]           = CEPC::kFlareLegDn;
+
+    std::map < std::string, CEPC::ECrossType>::const_iterator it = CrossTypes.find(type);
+    if ( it == CrossTypes.end() ) {
+      std::string ms = "Unknown Crossing Type for this geometry " + type;
+      throw std::runtime_error(ms.c_str());
+    }
+    return it->second;
+  }
+}
+#endif // Other_Helpers_hh