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geant4/source/graphics_reps/src/G4NURBStube.cc
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//
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// $Id: G4NURBStube.cc,v 1.8 2006/06/29 19:06:52 gunter Exp $
// GEANT4 tag $Name: geant4-09-00 $
//
//
// Olivier Crumeyrolle 12 September 1996
// Tube builder implementation
// OC 090796
#include "G4NURBStube.hh"
G4NURBStube::G4NURBStube(G4double r, G4double R, G4double DZ)
: G4NURBS( 2, 3, // linear along U, quadratic along V
5, 9, // rectangle along U, circle along V
Regular, // the knot vector along U will be generated
RegularRep ) // knot vector for the circle also
{
// define control points
const G4double sr2o2 = std::sqrt(2.)/2.;
CP(mpCtrlPts[ 0] , r, 0, DZ, 1 );
CP(mpCtrlPts[ 1] , R, 0, DZ, 1 );
CP(mpCtrlPts[ 2] , R, 0, -DZ, 1 );
CP(mpCtrlPts[ 3] , r, 0, -DZ, 1 );
CP(mpCtrlPts[ 4] , r, 0, DZ, 1 );
CP(mpCtrlPts[ 5] , r, r, DZ, 1 , sr2o2);
CP(mpCtrlPts[ 6] , R, R, DZ, 1 , sr2o2);
CP(mpCtrlPts[ 7] , R, R, -DZ, 1 , sr2o2);
CP(mpCtrlPts[ 8] , r, r, -DZ, 1 , sr2o2);
CP(mpCtrlPts[ 9] , r, r, DZ, 1 , sr2o2);
CP(mpCtrlPts[10] , 0, r, DZ, 1 );
CP(mpCtrlPts[11] , 0, R, DZ, 1 );
CP(mpCtrlPts[12] , 0, R, -DZ, 1 );
CP(mpCtrlPts[13] , 0, r, -DZ, 1 );
CP(mpCtrlPts[14] , 0, r, DZ, 1 );
CP(mpCtrlPts[15] , -r, r, DZ, 1 , sr2o2);
CP(mpCtrlPts[16] , -R, R, DZ, 1 , sr2o2);
CP(mpCtrlPts[17] , -R, R, -DZ, 1 , sr2o2);
CP(mpCtrlPts[18] , -r, r, -DZ, 1 , sr2o2);
CP(mpCtrlPts[19] , -r, r, DZ, 1 , sr2o2);
CP(mpCtrlPts[20] , -r, 0, DZ, 1 );
CP(mpCtrlPts[21] , -R, 0, DZ, 1 );
CP(mpCtrlPts[22] , -R, 0, -DZ, 1 );
CP(mpCtrlPts[23] , -r, 0, -DZ, 1 );
CP(mpCtrlPts[24] , -r, 0, DZ, 1 );
CP(mpCtrlPts[25] , -r,-r, DZ, 1 , sr2o2);
CP(mpCtrlPts[26] , -R,-R, DZ, 1 , sr2o2);
CP(mpCtrlPts[27] , -R,-R, -DZ, 1 , sr2o2);
CP(mpCtrlPts[28] , -r,-r, -DZ, 1 , sr2o2);
CP(mpCtrlPts[29] , -r,-R, DZ, 1 , sr2o2);
CP(mpCtrlPts[30] , 0,-r, DZ, 1 );
CP(mpCtrlPts[31] , 0,-R, DZ, 1 );
CP(mpCtrlPts[32] , 0,-R, -DZ, 1 );
CP(mpCtrlPts[33] , 0,-r, -DZ, 1 );
CP(mpCtrlPts[34] , 0,-r, DZ, 1 );
CP(mpCtrlPts[35] , r,-r, DZ, 1 , sr2o2);
CP(mpCtrlPts[36] , R,-R, DZ, 1 , sr2o2);
CP(mpCtrlPts[37] , R,-R, -DZ, 1 , sr2o2);
CP(mpCtrlPts[38] , r,-r, -DZ, 1 , sr2o2);
CP(mpCtrlPts[39] , r,-r, DZ, 1 , sr2o2);
CP(mpCtrlPts[40] , r, 0, DZ, 1 );
CP(mpCtrlPts[41] , R, 0, DZ, 1 );
CP(mpCtrlPts[42] , R, 0, -DZ, 1 );
CP(mpCtrlPts[43] , r, 0, -DZ, 1 );
CP(mpCtrlPts[44] , r, 0, DZ, 1 );
}
const char* G4NURBStube::Whoami() const
{
return "Tube";
}