void PndMultiField::GetFieldValue(const Double_t point[3], Double_t* bField)
{
  
   PndRegion *fReg=0;
   FairField *fField=0;
   for (fMapIter=fFieldMaps.begin(); fMapIter!= fFieldMaps.end();fMapIter++ ){
      fReg=fMapIter->first;
      if(fReg->IsInside(point[2])){
         fField=fMapIter->second;
	 break;
      }
   }
  if(fField){
     fField->GetBxyz(point, bField);  
  }else{
    bField[0] = 0;
    bField[1] = 0;
    bField[2] = 0;
  }
}