Gabriele Cosmo
120 lines
3.2 KiB
C++
120 lines
3.2 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4NURBScylinder.cc,v 1.3 1999/12/15 14:50:35 gunter Exp $
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// GEANT4 tag $Name: geant4-03-01 $
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//
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//
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// Olivier Crumeyrolle 12 September 1996
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// Cylinder builder implementation
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// OC 090796
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#include "G4NURBScylinder.hh"
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// for sqrt
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//#include <math.h>
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// math.h included in template.hh included in globals.hh included in
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// G4NURBS.hh included in G4NURBScylinder.hh
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// the cylinder constructor use the first G4NURBS constructor
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// look in G4NURBStube if you want to see how to use the second one.
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G4NURBScylinder::G4NURBScylinder(G4double R, G4double DZ)
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:
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G4NURBS (
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2, 3, // linear along U, quadratic along V
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4, 9, // half rectangle along U, circle along V
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(new t_CtrlPt [ 4 * 9 ]), // the array for CtrlPts
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NULL, // the knot vector along U will be generated
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(new t_Knot [ 3 + 9 ]) // knot vector for the circle
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)
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{
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// define the V knot vector
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m[V].pKnots[ 0] = 0;
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m[V].pKnots[ 1] = 0;
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m[V].pKnots[ 2] = 0;
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m[V].pKnots[ 3] = 0.25;
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m[V].pKnots[ 4] = 0.25;
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m[V].pKnots[ 5] = 0.5;
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m[V].pKnots[ 6] = 0.5;
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m[V].pKnots[ 7] = 0.75;
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m[V].pKnots[ 8] = 0.75;
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m[V].pKnots[ 9] = 1;
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m[V].pKnots[10] = 1;
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m[V].pKnots[11] = 1;
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// define control points
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const G4double sr2o2 = sqrt(2.)/2. ;
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CP(mpCtrlPts[ 0] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[ 1] , R, 0, DZ, 1 );
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CP(mpCtrlPts[ 2] , R, 0, -DZ, 1 );
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CP(mpCtrlPts[ 3] , 0, 0, -DZ, 1 );
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CP(mpCtrlPts[ 4] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[ 5] , R, R, DZ, 1 , sr2o2);
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CP(mpCtrlPts[ 6] , R, R,-DZ, 1 , sr2o2);
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CP(mpCtrlPts[ 7] , 0, 0, -DZ, 1 );
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CP(mpCtrlPts[ 8] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[ 9] , 0, R, DZ, 1 );
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CP(mpCtrlPts[10] , 0, R, -DZ, 1 );
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CP(mpCtrlPts[11] , 0, 0, -DZ, 1 );
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CP(mpCtrlPts[12] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[13] , -R, R, DZ, 1 , sr2o2);
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CP(mpCtrlPts[14] , -R, R,-DZ, 1 , sr2o2);
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CP(mpCtrlPts[15] , 0, 0, -DZ, 1 );
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CP(mpCtrlPts[16] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[17] , -R, 0, DZ, 1 );
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CP(mpCtrlPts[18] , -R, 0, -DZ, 1 );
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CP(mpCtrlPts[19] , 0, 0, -DZ, 1 );
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CP(mpCtrlPts[20] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[21] , -R,-R, DZ, 1 , sr2o2);
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CP(mpCtrlPts[22] , -R,-R,-DZ, 1 , sr2o2);
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CP(mpCtrlPts[23] , 0, 0, -DZ, 1 );
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CP(mpCtrlPts[24] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[25] , 0, -R, DZ, 1 );
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CP(mpCtrlPts[26] , 0, -R,-DZ, 1 );
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CP(mpCtrlPts[27] , 0, 0, -DZ, 1 );
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CP(mpCtrlPts[28] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[29] , R,-R, DZ, 1 , sr2o2);
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CP(mpCtrlPts[30] , R,-R,-DZ, 1 , sr2o2);
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CP(mpCtrlPts[31] , 0, 0, -DZ, 1 );
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CP(mpCtrlPts[32] , 0, 0, DZ, 1 );
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CP(mpCtrlPts[33] , R, 0, DZ, 1 );
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CP(mpCtrlPts[34] , R, 0, -DZ, 1 );
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CP(mpCtrlPts[35] , 0, 0, -DZ, 1 );
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}
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G4Visible & G4NURBScylinder::operator = (const G4Visible &right) {
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return G4Visible::operator = (right);
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}
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G4VVisPrim & G4NURBScylinder::operator = (const G4VVisPrim &right) {
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return G4VVisPrim::operator = (right);
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}
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const char* G4NURBScylinder::Whoami() const
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{
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return "Cylinder";
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}
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