Geometry/test/Tubs_.cpp

0001 #include <CLHEP/Units/SystemOfUnits.h>
0002 #include "DetectorDescription/Core/interface/DDSolid.h"
0003 #include "DetectorDescription/Core/interface/DDSolidShapes.h"
0004 #include "DetectorDescription/Core/interface/Tubs.h"
0005 #include "Utilities/Testing/interface/CppUnit_testdriver.icpp"
0006 #include "cppunit/extensions/HelperMacros.h"
0007 #include <G4Tubs.hh>
0008 #include <cmath>
0009 #include <limits>
0010 #include <string>
0011
0012 using namespace std;
0013 using CLHEP::cm;
0014 using CLHEP::cm3;
0015 using CLHEP::deg;
0016
0017 class testTubs : public CppUnit::TestFixture {
0018   CPPUNIT_TEST_SUITE(testTubs);
0019   CPPUNIT_TEST(matched_g4_and_dd);
0020
0021   CPPUNIT_TEST_SUITE_END();
0022
0023 public:
0024   void matched_g4_and_dd(void);
0025 };
0026
0027 void testTubs::matched_g4_and_dd(void) {
0028   double rIn = 10. * cm;
0029   double rOut = 15. * cm;
0030   double zhalf = 20. * cm;
0031   double startPhi = 0. * deg;
0032   double deltaPhi = 90. * deg;
0033   string name("fred1");
0034
0035   G4Tubs g4(name, rIn, rOut, zhalf, startPhi, deltaPhi);
0036   DDI::Tubs dd(zhalf, rIn, rOut, startPhi, deltaPhi);
0037   DDTubs dds = DDSolidFactory::tubs(name, zhalf, rIn, rOut, startPhi, deltaPhi);
0038   cout << endl;
0039   dd.stream(cout);
0040   cout << endl;
0041
0042   double g4v = g4.GetCubicVolume() / cm3;
0043   double ddv = dd.volume() / cm3;
0044   double ddsv = dds.volume() / cm3;
0045
0046   cout << "\tg4 volume = " << g4v << " cm3" << endl;
0047   cout << "\tdd volume = " << ddv << " cm3" << endl;
0048   cout << "\tDD Information: " << dds << " vol=" << ddsv << " cm3" << endl;
0049
0050   CPPUNIT_ASSERT(abs(g4v - ddv) < numeric_limits<float>::epsilon());
0051   CPPUNIT_ASSERT(abs(g4v - ddsv) < numeric_limits<float>::epsilon());
0052 }
0053
0054 CPPUNIT_TEST_SUITE_REGISTRATION(testTubs);