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#ifndef ClassAnasen_h
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#define ClassAnasen_h
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#include <cstdio>
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#include <TMath.h>
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#include <TVector3.h>
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#include "TGeoManager.h"
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#include "TGeoVolume.h"
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#include "TGeoBBox.h"
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#include "TCanvas.h"
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#include "TPolyMarker3D.h"
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#include "TPolyLine3D.h"
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class ANASEN{
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public:
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ANASEN();
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~ANASEN();
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TVector3 CalSX3Pos(unsigned short ID, unsigned short chUp, unsigned short chDown, unsigned short chBack, float eUp = 0, float eDown = 0 );
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void CalTrack(TVector3 sx3Pos, int anodeID, int cathodeID);
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TVector3 GetTrackPos() const {return trackPos;}
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TVector3 GetTrackVec() const {return trackVec;}
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double GetTrackTheta() const {return trackVec.Theta();}
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double GetTrackPhi() const {return trackVec.Phi();}
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void DrawAnasen(int anodeID1 = -1, int anodeID2 = -1, int cathodeID1 = -1, int cathodeID2 = -1, bool DrawQQQ = false );
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private:
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const int nWire = 24;
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const int wireShift = 3;
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const int zLen = 380; //mm
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const int radiusA = 37;
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const int radiusC = 43;
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std::vector<TVector3> P1; // the anode wire position vector in space
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std::vector<TVector3> P2; // the anode wire position vector in space
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std::vector<TVector3> Q1; // the cathode wire position vector in space
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std::vector<TVector3> Q2; // the cathode wire position vector in space
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std::vector<std::pair<TVector3,TVector3>> S1; // coners of the SX3 0-11, z = mid point
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std::vector<std::pair<TVector3,TVector3>> S2; // coners of the SX3 12-23, z = mid point
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void CalGeometry();
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TVector3 trackPos;
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TVector3 trackVec;
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double trackPosErrorZ; // mm
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TVector3 tracePosErrorXY; // the mag is the size of the error
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TVector3 trackVecErrorA; // error vector prependicular to the Anode-Pos plan
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TVector3 trackVecErrorC; // error vector prependicular to the Cathode-Pos plan
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const int nSX3 = 12;
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const int sx3Radius = 88;
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const int sx3Width = 40;
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const int sx3Length = 75;
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const int sx3Gap = 46;
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const int qqqR1 = 10;
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const int qqqR2 = 50;
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const int qqqZPos = sx3Gap/2 + sx3Length + 30;
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TGeoManager *geom;
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TGeoVolume *worldBox;
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void Construct3DModel(int anodeID1 = -1, int anodeID2 = -1, int cathodeID1 = -1, int cathodeID2 = -1, bool DrawQQQ = true);
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};
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//==============================================
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inline ANASEN::ANASEN(){
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CalGeometry();
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geom = nullptr;
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worldBox = nullptr;
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}
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inline ANASEN::~ANASEN(){
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delete geom;
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}
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inline void ANASEN::CalGeometry(){
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TVector3 p1; // anode
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TVector3 p2;
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TVector3 q1; // cathode
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TVector3 q2;
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for(int i = 0; i < nWire; i++ ){
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// Anode rotate right-hand
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p1.SetXYZ( radiusA * TMath::Cos( TMath::TwoPi() * i / nWire ),
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radiusA * TMath::Sin( TMath::TwoPi() * i / nWire ),
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zLen/2);
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p2.SetXYZ( radiusA * TMath::Cos( TMath::TwoPi() * (i + wireShift) / nWire ),
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radiusA * TMath::Sin( TMath::TwoPi() * (i + wireShift) / nWire ),
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-zLen/2);
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P1.push_back(p1);
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P2.push_back(p2);
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// Cathod rotate left-hand
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p1.SetXYZ( radiusC * TMath::Cos( TMath::TwoPi() * i / nWire ),
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radiusC * TMath::Sin( TMath::TwoPi() * i / nWire ),
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zLen/2);
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p2.SetXYZ( radiusC * TMath::Cos( TMath::TwoPi() * (i - wireShift) / nWire ),
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radiusC * TMath::Sin( TMath::TwoPi() * (i - wireShift) / nWire ),
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-zLen/2);
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Q1.push_back(p1);
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Q2.push_back(p2);
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}
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TVector3 sa, sb;
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for(int i = 0; i < nSX3; i++){
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sa.SetXYZ( sx3Radius, sx3Width/2, sx3Gap/2 + sx3Length/2 );
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sb.SetXYZ( sx3Radius, -sx3Width/2, sx3Gap/2 + sx3Length/2 );
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sa.RotateZ( TMath::TwoPi() / nSX3 * (i + 0.5) );
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sb.RotateZ( TMath::TwoPi() / nSX3 * (i + 0.5) );
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S1.push_back(std::pair(sa,sb));
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sa.SetXYZ( sx3Radius, sx3Width/2, -sx3Gap/2 - sx3Length/2 );
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sb.SetXYZ( sx3Radius, -sx3Width/2, -sx3Gap/2 - sx3Length/2 );
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sa.RotateZ( TMath::TwoPi() / nSX3 * (i + 0.5) );
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sb.RotateZ( TMath::TwoPi() / nSX3 * (i + 0.5) );
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S2.push_back(std::pair(sa,sb));
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}
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}
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inline void ANASEN::Construct3DModel(int anodeID1, int anodeID2, int cathodeID1, int cathodeID2, bool DrawQQQ ){
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if( geom ) delete geom;
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// Create ROOT manager and master volume
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geom = new TGeoManager("Detector", "ANASEN");
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//--- define some materials
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TGeoMaterial *matVacuum = new TGeoMaterial("Vacuum", 0,0,0);
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TGeoMaterial *matAl = new TGeoMaterial("Al", 26.98,13,2.7);
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//--- define some media
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TGeoMedium *Vacuum = new TGeoMedium("Vacuum",1, matVacuum);
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TGeoMedium *Al = new TGeoMedium("Root Material",2, matAl);
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//--- make the top container volume
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Double_t worldx = 200.; //mm
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Double_t worldy = 200.; //mm
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Double_t worldz = 200.; //mm
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worldBox = geom->MakeBox("ROOT", Vacuum, worldx, worldy, worldz);
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geom->SetTopVolume(worldBox);
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//--- making axis
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TGeoVolume *axisX = geom->MakeTube("axisX", Al, 0, 0.1, 5.);
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axisX->SetLineColor(1);
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worldBox->AddNode(axisX, 1, new TGeoCombiTrans(5, 0, 0., new TGeoRotation("rotA", 90., 90., 0.)));
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TGeoVolume *axisY = geom->MakeTube("axisY", Al, 0, 0.1, 5.);
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axisY->SetLineColor(1);
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worldBox->AddNode(axisY, 1, new TGeoCombiTrans(0, 5, 0., new TGeoRotation("rotB", 0., 90., 0.)));
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TGeoVolume *axisZ = geom->MakeTube("axisZ", Al, 0, 0.1, 5.);
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axisZ->SetLineColor(1);
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worldBox->AddNode(axisZ, 1, new TGeoTranslation(0, 0, 5));
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//.......... convert to wire center dimensions
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double dAngle = wireShift * TMath::TwoPi() / nWire;
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double radiusAnew = radiusA * TMath::Cos( dAngle / 2.);
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double wireALength = TMath::Sqrt( zLen*zLen + TMath::Power(2* radiusA * TMath::Sin(dAngle/2),2) );
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double wireATheta = TMath::ATan2( 2* radiusA * TMath::Sin( dAngle / 2.), zLen);
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// printf(" dAngle : %f\n", dAngle);
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// printf(" newRadius : %f\n", radiusAnew);
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// printf("wireLength : %f\n", wireALength);
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// printf("wire Theta : %f\n", wireATheta);
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TGeoVolume *pcA = geom->MakeTube("tub1", Al, 0, 0.01, wireALength/2);
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pcA->SetLineColor(4);
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for( int i = 0; i < nWire; i++){
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if( anodeID2 >= 0 && (i < anodeID1 || i > anodeID2) ) continue;
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worldBox->AddNode(pcA, i+1, new TGeoCombiTrans( radiusAnew * TMath::Cos( TMath::TwoPi() / nWire *i + dAngle / 2),
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radiusAnew * TMath::Sin( TMath::TwoPi() / nWire *i + dAngle / 2),
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0,
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new TGeoRotation("rot1", 360/ nWire * (i + wireShift/2.), wireATheta * 180/ TMath::Pi(), 0.)));
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}
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double radiusCnew = radiusC * TMath::Cos( dAngle / 2.);
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double wireCLength = TMath::Sqrt( zLen*zLen + TMath::Power(2* radiusC * TMath::Sin(dAngle/2),2) );
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double wireCTheta = TMath::ATan2( 2* radiusC * TMath::Sin( dAngle / 2.), zLen);
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TGeoVolume *pcC = geom->MakeTube("tub2", Al, 0, 0.01, wireCLength/2);
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pcC->SetLineColor(6);
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for( int i = 0; i < nWire; i++){
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if( cathodeID2 >= 0 && (i < cathodeID1 || i > cathodeID2) ) continue;
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worldBox->AddNode(pcC, i+1, new TGeoCombiTrans( radiusCnew * TMath::Cos( TMath::TwoPi() / nWire *i - dAngle/2),
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radiusCnew * TMath::Sin( TMath::TwoPi() / nWire *i - dAngle/2),
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0,
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new TGeoRotation("rot1", 360/ nWire * (i - wireShift/2.), -wireCTheta * 180/ TMath::Pi(), 0.)));
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}
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TGeoVolume * sx3 = geom->MakeBox("box", Al, 0.1, sx3Width/2, sx3Length/2);
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sx3->SetLineColor(kGreen+3);
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for( int i = 0; i < nSX3; i++){
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worldBox->AddNode(sx3, 2*i+1., new TGeoCombiTrans( sx3Radius * TMath::Cos( TMath::TwoPi() / nSX3 * (i + 0.5)),
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sx3Radius * TMath::Sin( TMath::TwoPi() / nSX3 * (i + 0.5)),
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sx3Length/2+sx3Gap/2,
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new TGeoRotation("rot1", 360/nSX3 * (i + 0.5), 0., 0.)));
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worldBox->AddNode(sx3, 2*i+2., new TGeoCombiTrans( sx3Radius * TMath::Cos( TMath::TwoPi() / nSX3 * (i + 0.5)),
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sx3Radius * TMath::Sin( TMath::TwoPi() / nSX3 * (i + 0.5)),
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-sx3Length/2-sx3Gap/2,
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new TGeoRotation("rot1", 360/nSX3 * (i + 0.5), 0., 0.)));
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}
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if( DrawQQQ ){
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TGeoVolume *qqq = geom->MakeTubs("qqq", Al, qqqR1, qqqR2, 0.5, 5, 85);
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qqq->SetLineColor(7);
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for( int i = 0; i < 4; i++){
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worldBox->AddNode(qqq, i+1, new TGeoCombiTrans( 0,
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0,
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qqqZPos,
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new TGeoRotation("rot1", 360/4 * (i), 0., 0.)));
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}
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}
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}
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inline void ANASEN::DrawAnasen(int anodeID1, int anodeID2, int cathodeID1, int cathodeID2, bool DrawQQQ ){
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Construct3DModel(anodeID1, anodeID2, cathodeID1, cathodeID2, DrawQQQ);
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geom->CloseGeometry();
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geom->SetVisLevel(4);
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worldBox->Draw("ogle");
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}
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inline void ANASEN::CalTrack(TVector3 sx3Pos, int anodeID, int cathodeID){
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trackPos = sx3Pos;
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TVector3 n1 = (P2[anodeID] - P1[anodeID]).Cross((sx3Pos - P1[anodeID]));
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TVector3 n2 = (Q2[anodeID] - Q1[anodeID]).Cross((sx3Pos - Q1[anodeID]));
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// if the handiness of anode and cathode revered, it should be n2 cross n1
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trackVec = (n1.Cross(n2)).Unit();
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}
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inline TVector3 ANASEN::CalSX3Pos(unsigned short ID, unsigned short chUp, unsigned short chDown, unsigned short chBack, float eUp, float eDown){
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TVector3 haha;
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if( (chUp - chDown) != 1 || (chDown % 2) != 0) return haha;
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int reducedID = ID % nSX3;
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TVector3 sa, sb;
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if( ID < nSX3 ){ //down
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sa = S1[reducedID].first;
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sb = S1[reducedID].second;
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}else{
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sa = S2[reducedID].first;
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sb = S2[reducedID].second;
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}
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haha.SetX( (sb.X() - sa.X()) * chUp/8 + sa.X());
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haha.SetY( (sb.Y() - sa.Y()) * chUp/8 + sa.Y());
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if( eUp == 0 || eDown == 0 ){
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haha.SetZ( sa.Z() + (2*(chBack - 7)-1) * sx3Length / 8 );
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}else{
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double frac = (eUp - eDown)/(eUp + eDown); // from +1 (downstream) to -1 (upstream)
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double zPos = sa.Z() + sx3Length * frac/2;
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haha.SetZ( zPos );
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}
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return haha;
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}
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#endif
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