/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_14/src/DetectorDescription/Core/src/EllipticalTube.cc

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#include "DetectorDescription/Core/src/EllipticalTube.h"
#include "CLHEP/Units/GlobalSystemOfUnits.h"
#include <ostream>

void DDI::EllipticalTube::stream(std::ostream & os) const
{
   os << " xSemiAxis[cm]=" << p_[0]/cm
      << " ySemiAxis[cm]=" << p_[1]/cm
      << " zHeight[cm]=" << p_[2]/cm;

}

double DDI::EllipticalTube::volume() const { 
  double volume(0.);
  // who cares major or minor axis? pi * a * b == pi * xhalf * yhalf
  // area of a slice.
  // we KNOW they are all cm... CMS uses cm
  double area(Geom::pi()*p_[0]*p_[1]);
  //volume is z * area.  I'm pretty sure :)
  volume = area * p_[2] * 2;
  return volume; 

}