ERFieldConst.cxx

// -------------------------------------------------------------------------
// -----                    ERFieldConst source file                  -----
// -----                Created 05/17  V.Schetinin                     -----
// -------------------------------------------------------------------------

#include "ERFieldConst.h"

#include "ERFieldPar.h"
#include <iomanip>
#include <iostream>

using std::cout;
using std::cerr;
using std::endl;
using std::setw;

// -----   Default constructor   -------------------------------------------

ERFieldConst::ERFieldConst() 
: FairField(),
    fXmin(0.),   
    fXmax(0.),
    fYmin(0.),
    fYmax(0.),
    fZmin(0.),
    fZmax(0.),
    fBx(0.),
    fBy(0.),
    fBz(0.)
{
  fType = 0;
}
// -------------------------------------------------------------------------

// -----   Standard constructor   ------------------------------------------
ERFieldConst::ERFieldConst(const char* name, Double_t xMin, 
                             Double_t xMax, Double_t yMin, 
                             Double_t yMax, Double_t zMin,
                             Double_t zMax, Double_t bX, 
                             Double_t bY, Double_t bZ) 
  : FairField(name),
    fXmin(xMin),   
    fXmax(xMax),
    fYmin(yMin),
    fYmax(yMax),
    fZmin(zMin),
    fZmax(zMax),
    fBx(bX),
    fBy(bY),
    fBz(bZ)
{
  fType=0;
}
// -------------------------------------------------------------------------

// --------   Constructor from ERFieldPar   -------------------------------
ERFieldConst::ERFieldConst(ERFieldPar* fieldPar) 
  : FairField(),
    fXmin(0.),   
    fXmax(0.),
    fYmin(0.),
    fYmax(0.),
    fZmin(0.),
    fZmax(0.),
    fBx(0.),
    fBy(0.),
    fBz(0.)
{
  if ( ! fieldPar ) {
    cerr << "-W- ERFieldConst::ERFieldConst: empty parameter container!"
         << endl;
    fType=0;
  }
  else {
    fXmin = fieldPar->GetXmin();
    fXmax = fieldPar->GetXmax();
    fYmin = fieldPar->GetYmin();
    fYmax = fieldPar->GetYmax();
    fZmin = fieldPar->GetZmin();
    fZmax = fieldPar->GetZmax();
    fBx   = fieldPar->GetBx();
    fBy   = fieldPar->GetBy();
    fBz   = fieldPar->GetBz();
    fType = fieldPar->GetType();
  }
}
// -------------------------------------------------------------------------

// -----   Destructor   ----------------------------------------------------
ERFieldConst::~ERFieldConst() { }
// -------------------------------------------------------------------------

// -----   Set field region   ----------------------------------------------
void ERFieldConst::SetFieldRegion(Double_t xMin, Double_t xMax, 
                                   Double_t yMin, Double_t yMax, 
                                   Double_t zMin, Double_t zMax) {
  fXmin = xMin;
  fXmax = xMax;
  fYmin = yMin;
  fYmax = yMax;
  fZmin = zMin;
  fZmax = zMax;
}
// -------------------------------------------------------------------------

// -----   Set field values   ----------------------------------------------
void ERFieldConst::SetField(Double_t bX, Double_t bY, Double_t bZ) {
  fBx   = bX;
  fBy   = bY;
  fBz   = bZ;
}
// -------------------------------------------------------------------------

// -----   Get x component of field   --------------------------------------
Double_t ERFieldConst::GetBx(Double_t x, Double_t y, Double_t z) {
  if ( x < fXmin  ||  x > fXmax  ||
       y < fYmin  ||  y > fYmax  ||
       z < fZmin  ||  z > fZmax ) return 0.;
  return fBx;
}
// -------------------------------------------------------------------------

// -----   Get y component of field   --------------------------------------
Double_t ERFieldConst::GetBy(Double_t x, Double_t y, Double_t z) {
  if ( x < fXmin  ||  x > fXmax  ||
       y < fYmin  ||  y > fYmax  ||
       z < fZmin  ||  z > fZmax ) return 0.;
  return fBy;
}
// -------------------------------------------------------------------------

// -----   Get z component of field   --------------------------------------
Double_t ERFieldConst::GetBz(Double_t x, Double_t y, Double_t z) {
  if ( x < fXmin  ||  x > fXmax  ||
       y < fYmin  ||  y > fYmax  ||
       z < fZmin  ||  z > fZmax ) return 0.;
  return fBz;
}
// -------------------------------------------------------------------------

// -----   Screen output   -------------------------------------------------
void ERFieldConst::Print(Option_t*) const {
  cout << "======================================================" << endl;
  cout << "----  " << fTitle << " : " << fName << endl;
  cout << "----" << endl;
  cout << "----  Field type    : constant" << endl;
  cout << "----" << endl;
  cout << "----  Field regions : " << endl;
  cout << "----        x = " << setw(4) << fXmin << " to " << setw(4) 
       << fXmax << " cm" << endl;
  cout << "----        y = " << setw(4) << fYmin << " to " << setw(4) 
       << fYmax << " cm" << endl;
  cout << "----        z = " << setw(4) << fZmin << " to " << setw(4)
       << fZmax << " cm" << endl;
  cout.precision(4);
  cout << "----  B = ( " << fBx << ", " << fBy << ", " << fBz << " ) kG"
       << endl;
  cout << "======================================================" << endl;
}

// -------------------------------------------------------------------------

ClassImp(ERFieldConst)