MucEntity.h

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//------------------------------------------------------------------------------|
//      [File  ]:                       MucEntity.h                             |
//      [Brief ]:       Head file of MUC geometry entity class                  |
//      [Author]:       Xie Yuguang, <[email protected]>                    |
//      [Date  ]:       May 22, 2005                                            |
//------------------------------------------------------------------------------|
 
#ifndef MUC_ENTITY_H
#define MUC_ENTITY_H
 
#include<iostream>
 
//#include "CLHEP/Geometry/Vector3D.h"
//#include "CLHEP/Geometry/Point3D.h"
 
using namespace std;
 
class MucEntity 
{
  public:
    MucEntity( int part, int segment, int layer ); 
    MucEntity( int part, int segment, int layer, int id );
    MucEntity( int part, int segment, int layer, int upDown, int id );
    MucEntity( int part, int segment, int layer, int upDown, int rpcId, int id );
    MucEntity( const MucEntity &other );
    MucEntity &operator =( const MucEntity &other );
    virtual ~MucEntity() ;
    
    int     GetPart();
    int     GetSegment();
    int     GetLayer();
    int     GetUpDown();
    int     GetRpcId();
    int     GetID();
    
    double  GetTheta();
    double  GetRin();
    double  GetRout();
    double  GetRc();
    double  GetThin();
    double  GetW();
    double  GetH();
    double  GetL();
    double  GetWu();
    double  GetWd();
    double  GetArea();
    
    double  GetLocOrgInBes( int i );  // 1: Bes_x, 2: Bes_y, 3, Bes_z
    double  GetObjRotToMot( int i );  // 1: Rot_x, 2: Rot_y, 3, Rot_z
    double  GetObjOrgInBes( int i );  // 1: Bes_x, 2: Bes_y, 3, Bes_z
    double  GetObjOrgInLoc( int i );  // 1: Pos_x, 2: Pos_y, 3, Pos_z
    
    double* GetLocOrgInBes();   
    double* GetObjRotToMot();   
    double* GetObjOrgInLoc();
    double* GetObjOrgInBes();
    
    // coordinate transform function, from old to new, 
    // Rot_z is the direction angle of new x axis in old coordinate system
    void  TransBesToLoc( double LocCoord[], double BesCoord[], double LocOrgInBes[], double Rot_z );        
    void  TransLocToBes( double LocCoord[], double BesCoord[], double LocOrgInBes[], double Rot_z ); 
    
  protected:
 
    virtual void  Init();           // all geometry information initilization 
    
    virtual void  SetTheta();       // set theta
    virtual void  SetRin();         // set r inner
    virtual void  SetRout();        // set r outer
    virtual void  SetRc();          // set r center 
    virtual void  SetThin();        // set thickness
    virtual void  SetW();           // set width  
    virtual void  SetH();           // set height 
    virtual void  SetL();           // set stretching length 
    virtual void  SetWu();          // set up width  
    virtual void  SetWd();          // set down width 
    virtual void  SetArea();        // set area of entity(mm^2)
    virtual void  SetLocOrgInBes(); // set x, y, z of local origin in BES coordinate system
    virtual void  SetObjRotToMot(); // set rotation angles of x, y, z axises of local coordinate system 
                                    // relative to BES 
    virtual void  SetObjOrgInBes(); // set x, y and z of object origin in BES coordinate system 
    virtual void  SetObjOrgInLoc(); // set x, y and z of object origin in local or 
                                    // temporary local coordinate system
    virtual void  SetAlignment( double dx, double dy, double dz); // set alignment 
 
  protected:
    int     m_Part;     // part id
    int     m_Segment;  // segment id
    int     m_Layer;    // layer id
    int     m_UpDown;   // up or down superlayer id, only valid for superlayer objects
    int     m_RpcId;    // rpc id in up or down superlayer
    int     m_ID;       // object id
    
    double  m_Theta;    // barrel: inclination angle of R and Bes_X
                        // endcap: inclination angle of panel boudary and Bes_X
    
    double  m_Rin;      // r of the inner surface relative to BES origin
    double  m_Rout;     // r of the outer surface relative to BES origin
    double  m_Rc;       // r of the center surface relative to BES orign    
    double  m_Thin;     // thickness of entity      
    double  m_W;        // width of cross section
    double  m_H;        // height of cross section
    double  m_L;        // stretching length of cross section
    double  m_Wu;       // up width of trapezoid cross section
    double  m_Wd;       // down width of trapezoid cross section
    double  m_Area;     // area of entity,mm^2
    
    double  m_LocOrgInBes[3]; // x, y, z of the mother origin in BES coordinate system
                              // for panel, the mother is temporary local coordinate system
    double  m_ObjRotToMot[3]; // rotation angles of x, y, z axises of the object coordinate system 
                              // relative to the mother 
                              // only rotation angle relative to Bes_z axis is useful
                              // defined as the angle of local xy plane circling mother's z axis, 
                              // not Euler angle 
                              // for local or temparory local, the mother is BES, for panel, 
                              // the mother is the local or temparory local
    double  m_ObjOrgInBes[3]; // x, y and z of object origin in BES coordinate system
    double  m_ObjOrgInLoc[3]; // x, y and z of object origin in its mother coordinate system
                              // for panel, the mother is temporary local coordinate system
    
//-------------------------------------------------------------NOTE---------------------------------------------------------------
//  1:  There are four coordinate systems: BES(the world), local(the mother), temporary local(the temp, for many panels object) 
//      and object, the posterior one is always located in the anterior one.
//  2:  If the local coordinate system of one entity is BES, m_MotOrgInBes is unuseful. 
//  3:  According to the detector structure, the origin coordinates and rotation angles of geometry entities relative to BES 
//      coordinate system can be calculated easily and conveniently, so these values will be initialized first in constructor.
//  4:  For objects having many panels, the id of integral object is -1, and the id of panel begins from 0 to panel number.
//      These objects must be added a temporary local coordinate system for locating the panels, the temporary local      
 
};
 
#endif