    // @(#)root/geom:$Name:  $:$Id: TGeoCone.cxx,v 1.29 2004/06/25 11:59:55 brun Exp $
    // Author: Andrei Gheata   31/01/02
    // TGeoCone::Contains() and DistToOut() implemented by Mihaela Gheata

    /*************************************************************************
     * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
     * All rights reserved.                                                  *
     *                                                                       *
     * For the licensing terms see $ROOTSYS/LICENSE.                         *
     * For the list of contributors see $ROOTSYS/README/CREDITS.             *
     *************************************************************************/

    //--------------------------------------------------------------------------
    // TGeoCone - conical tube  class. It has 5 parameters :
    //            dz - half length in z
    //            Rmin1, Rmax1 - inside and outside radii at -dz
    //            Rmin2, Rmax2 - inside and outside radii at +dz
    //
    //--------------------------------------------------------------------------
    //

/* */ //

// // /* */ //

// // /* */ //

// /* */ //

//-------------------------------------------------------------------------- // TGeoConeSeg - a phi segment of a conical tube. Has 7 parameters : // - the same 5 as a cone; // - first phi limit (in degrees) // - second phi limit // //-------------------------------------------------------------------------- // // /* */ //

// // /* */ //

#include "TROOT.h" #include "TGeoManager.h" #include "TGeoVolume.h" #include "TVirtualGeoPainter.h" #include "TGeoCone.h" ClassImp(TGeoCone) //_____________________________________________________________________________ TGeoCone::TGeoCone() { // Default constructor SetShapeBit(TGeoShape::kGeoCone); fDz = 0.0; fRmin1 = 0.0; fRmax1 = 0.0; fRmin2 = 0.0; fRmax2 = 0.0; } //_____________________________________________________________________________ TGeoCone::TGeoCone(Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2) :TGeoBBox(0, 0, 0) { // Default constructor specifying minimum and maximum radius SetShapeBit(TGeoShape::kGeoCone); SetConeDimensions(dz, rmin1, rmax1, rmin2, rmax2); if ((dz<0) || (rmin1<0) || (rmax1<0) || (rmin2<0) || (rmax2<0)) { SetShapeBit(kGeoRunTimeShape); } else ComputeBBox(); } //_____________________________________________________________________________ TGeoCone::TGeoCone(const char *name, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2) :TGeoBBox(name, 0, 0, 0) { // Default constructor specifying minimum and maximum radius SetShapeBit(TGeoShape::kGeoCone); SetConeDimensions(dz, rmin1, rmax1, rmin2, rmax2); if ((dz<0) || (rmin1<0) || (rmax1<0) || (rmin2<0) || (rmax2<0)) { SetShapeBit(kGeoRunTimeShape); } else ComputeBBox(); } //_____________________________________________________________________________ TGeoCone::TGeoCone(Double_t *param) :TGeoBBox(0, 0, 0) { // Default constructor specifying minimum and maximum radius // param[0] = dz // param[1] = Rmin1 // param[2] = Rmax1 // param[3] = Rmin2 // param[4] = Rmax2 SetShapeBit(TGeoShape::kGeoCone); SetDimensions(param); if ((fDz<0) || (fRmin1<0) || (fRmax1<0) || (fRmin2<0) || (fRmax2<0)) SetShapeBit(kGeoRunTimeShape); else ComputeBBox(); } //_____________________________________________________________________________ TGeoCone::~TGeoCone() { // destructor } //_____________________________________________________________________________ void TGeoCone::ComputeBBox() { // compute bounding box of the sphere TGeoBBox *box = (TGeoBBox*)this; box->SetBoxDimensions(TMath::Max(fRmax1, fRmax2), TMath::Max(fRmax1, fRmax2), fDz); memset(fOrigin, 0, 3*sizeof(Double_t)); } //_____________________________________________________________________________ void TGeoCone::ComputeNormal(Double_t *point, Double_t *dir, Double_t *norm) { // Compute normal to closest surface from POINT. Double_t safr,safe,phi; memset(norm,0,3*sizeof(Double_t)); phi = TMath::ATan2(point[1],point[0]); Double_t cphi = TMath::Cos(phi); Double_t sphi = TMath::Sin(phi); Double_t ro1 = 0.5*(fRmin1+fRmin2); Double_t tg1 = 0.5*(fRmin2-fRmin1)/fDz; Double_t cr1 = 1./TMath::Sqrt(1.+tg1*tg1); Double_t ro2 = 0.5*(fRmax1+fRmax2); Double_t tg2 = 0.5*(fRmax2-fRmax1)/fDz; Double_t cr2 = 1./TMath::Sqrt(1.+tg2*tg2); Double_t r=TMath::Sqrt(point[0]*point[0]+point[1]*point[1]); Double_t rin = tg1*point[2]+ro1; Double_t rout = tg2*point[2]+ro2; safe = TMath::Abs(fDz-TMath::Abs(point[2])); norm[2] = 1; safr = (ro1>0)?(TMath::Abs((r-rin)*cr1)):TGeoShape::Big(); if (safr<safe) { safe = safr; norm[0] = cr1*cphi; norm[1] = cr1*sphi; norm[2] = tg1*cr1; } safr = TMath::Abs((rout-r)*cr2); if (safr<safe) { norm[0] = cr2*cphi; norm[1] = cr2*sphi; norm[2] = tg2*cr2; } if (norm[0]*dir[0]+norm[1]*dir[1]+norm[2]*dir[2]<0) { norm[0] = -norm[0]; norm[1] = -norm[1]; norm[2] = -norm[2]; } } //_____________________________________________________________________________ void TGeoCone::ComputeNormalS(Double_t *point, Double_t *dir, Double_t *norm, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2) { // Compute normal to closest surface from POINT. Double_t safe,phi; memset(norm,0,3*sizeof(Double_t)); phi = TMath::ATan2(point[1],point[0]); Double_t cphi = TMath::Cos(phi); Double_t sphi = TMath::Sin(phi); Double_t ro1 = 0.5*(rmin1+rmin2); Double_t tg1 = 0.5*(rmin2-rmin1)/dz; Double_t cr1 = 1./TMath::Sqrt(1.+tg1*tg1); Double_t ro2 = 0.5*(rmax1+rmax2); Double_t tg2 = 0.5*(rmax2-rmax1)/dz; Double_t cr2 = 1./TMath::Sqrt(1.+tg2*tg2); Double_t r=TMath::Sqrt(point[0]*point[0]+point[1]*point[1]); Double_t rin = tg1*point[2]+ro1; Double_t rout = tg2*point[2]+ro2; safe = (ro1>0)?(TMath::Abs((r-rin)*cr1)):TGeoShape::Big(); norm[0] = cr1*cphi; norm[1] = cr1*sphi; norm[2] = tg1*cr1; if (TMath::Abs((rout-r)*cr2)<safe) { norm[0] = cr2*cphi; norm[1] = cr2*sphi; norm[2] = tg2*cr2; } if (norm[0]*dir[0]+norm[1]*dir[1]+norm[2]*dir[2]<0) { norm[0] = -norm[0]; norm[1] = -norm[1]; norm[2] = -norm[2]; } } //_____________________________________________________________________________ Bool_t TGeoCone::Contains(Double_t *point) const { // test if point is inside this cone if (TMath::Abs(point[2]) > fDz) return kFALSE; Double_t r2 = point[0]*point[0]+point[1]*point[1]; Double_t rl = 0.5*(fRmin2*(point[2]+fDz)+fRmin1*(fDz-point[2]))/fDz; Double_t rh = 0.5*(fRmax2*(point[2]+fDz)+fRmax1*(fDz-point[2]))/fDz; if ((r2<rl*rl) || (r2>rh*rh)) return kFALSE; return kTRUE; } //_____________________________________________________________________________ Double_t TGeoCone::DistToOutS(Double_t *point, Double_t *dir, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2) { // compute distance from inside point to surface of the cone (static) if (dz<=0) return TGeoShape::Big(); // compute distance to surface // Do Z Double_t sz = TGeoShape::Big(); if (dir[2]>0) { sz = (dz-point[2])/dir[2]; if (sz<=0) return 0.; } else { if (dir[2]<0) { sz = -(dz+point[2])/dir[2]; if (sz<=0) return 0.; } } // Do Rmin Double_t sr1=TGeoShape::Big(), sr2=TGeoShape::Big(); Double_t b,delta, znew; Bool_t found = kFALSE; if ((rmin1+rmin2)>0) { TGeoCone::DistToCone(point, dir, rmin1, -dz, rmin2, dz, b, delta); if (delta>0) { sr1 = -b-delta; if (sr1>0) { znew = point[2]+sr1*dir[2]; if (TMath::Abs(znew)<dz) found=kTRUE; } if (!found) { sr1 = -b+delta; if (sr1>0) { znew = point[2]+sr1*dir[2]; if (TMath::Abs(znew)>=dz) sr1=TGeoShape::Big(); } else { sr1 = TGeoShape::Big(); } } } } // Do Rmax found = kFALSE; TGeoCone::DistToCone(point, dir, rmax1, -dz, rmax2, dz, b, delta); if (delta>0) { sr2 = -b-delta; if (sr2>0) { znew = point[2]+sr2*dir[2]; if (TMath::Abs(znew)<dz) found=kTRUE; } if (!found) { sr2 = -b+delta; if (sr2>0) { znew = point[2]+sr2*dir[2]; if (TMath::Abs(znew)>=dz) sr2=TGeoShape::Big(); } else { sr2 = TGeoShape::Big(); } } } return TMath::Min(TMath::Min(sr1, sr2), sz); } //_____________________________________________________________________________ Double_t TGeoCone::DistToOut(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe) const { // compute distance from inside point to surface of the cone if (iact<3 && safe) { *safe = Safety(point, kTRUE); if (iact==0) return TGeoShape::Big(); if ((iact==1) && (*safe>step)) return TGeoShape::Big(); } // compute distance to surface return TGeoCone::DistToOutS(point, dir, fDz, fRmin1, fRmax1, fRmin2, fRmax2); } //_____________________________________________________________________________ Double_t TGeoCone::DistToInS(Double_t *point, Double_t *dir, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2) { // compute distance from outside point to surface of the tube // compute distance to Z planes if (dz<=0) return TGeoShape::Big(); Double_t snxt = TGeoShape::Big(); Double_t ro1=0.5*(rmin1+rmin2); Bool_t hasrmin = (ro1>0)?kTRUE:kFALSE; Double_t ro2=0.5*(rmax1+rmax2); Double_t tg2=0.5*(rmax2-rmax1)/dz; Double_t r2=point[0]*point[0]+point[1]*point[1]; Double_t r=TMath::Sqrt(r2); Double_t rout=tg2*point[2]+ro2; Double_t xp, yp; if ((point[2]<=-dz) && (dir[2]>0)) { snxt = (-dz-point[2])/dir[2]; xp = point[0]+snxt*dir[0]; yp = point[1]+snxt*dir[1]; r2 = xp*xp+yp*yp; if ((r2>=rmin1*rmin1) && (r2<=rmax1*rmax1)) return snxt; } else { if ((point[2]>=dz) && (dir[2]<0)) { snxt = (dz-point[2])/dir[2]; xp = point[0]+snxt*dir[0]; yp = point[1]+snxt*dir[1]; r2 = xp*xp+yp*yp; if ((r2>=rmin2*rmin2) && (r2<=rmax2*rmax2)) return snxt; } } // compute distance to inner cone Double_t din=TGeoShape::Big(), dout=TGeoShape::Big(); Double_t b,delta,znew; Bool_t found = kFALSE; snxt = TGeoShape::Big(); if (hasrmin) { TGeoCone::DistToCone(point, dir, rmin1, -dz, rmin2, dz, b, delta); if (delta>0) { din = -b-delta; if (din>0) { znew = point[2]+din*dir[2]; if (TMath::Abs(znew)<dz) found=kTRUE; } if (!found) { din = -b+delta; if (din>0) { znew = point[2]+din*dir[2]; if (TMath::Abs(znew)>=dz) din=TGeoShape::Big(); } else { din = TGeoShape::Big(); } } } } // compute distance to outer cone if (r>=rout) { found = kFALSE; TGeoCone::DistToCone(point, dir, rmax1, -dz, rmax2, dz, b, delta); if (delta>0) { dout = -b-delta; if (dout>0) { znew = point[2]+dout*dir[2]; if (TMath::Abs(znew)<dz) found=kTRUE; } if (!found) { dout = -b+delta; if (dout>0) { znew = point[2]+dout*dir[2]; if (TMath::Abs(znew)>=dz) dout=TGeoShape::Big(); } else { dout = TGeoShape::Big(); } } } } // printf("din=%f dout=%f\n", din, dout); snxt = TMath::Min(din, dout); return snxt; } //_____________________________________________________________________________ Double_t TGeoCone::DistToIn(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe) const { // compute distance from outside point to surface of the tube // compute safe radius if (iact<3 && safe) { *safe = Safety(point, kFALSE); if (iact==0) return TGeoShape::Big(); if ((iact==1) && (*safe>step)) return TGeoShape::Big(); } // compute distance to Z planes return TGeoCone::DistToInS(point, dir, fDz, fRmin1, fRmax1, fRmin2, fRmax2); } //_____________________________________________________________________________ void TGeoCone::DistToCone(Double_t *point, Double_t *dir, Double_t r1, Double_t z1, Double_t r2, Double_t z2, Double_t &b, Double_t &delta) { // Static method to compute distance to a conical surface with : // - r1, z1 - radius and Z position of lower base // - r2, z2 - radius and Z position of upper base Double_t dz = z2-z1; delta = -1.; if (dz<0) return; Double_t ro0 = 0.5*(r1+r2); Double_t fz = (r2-r1)/dz; Double_t r0sq = point[0]*point[0] + point[1]*point[1]; Double_t rc = ro0 + fz*(point[2]-0.5*(z1+z2)); Double_t a = dir[0]*dir[0] + dir[1]*dir[1] - fz*fz*dir[2]*dir[2]; b = point[0]*dir[0] + point[1]*dir[1] - fz*rc*dir[2]; Double_t c = r0sq - rc*rc; if (a==0) return; a = 1./a; b *= a; c *= a; delta = b*b - c; if (delta>0) { delta = TMath::Sqrt(delta); } else { delta = -1.; } } //_____________________________________________________________________________ Int_t TGeoCone::DistancetoPrimitive(Int_t px, Int_t py) { // compute closest distance from point px,py to each corner Int_t n = gGeoManager->GetNsegments(); const Int_t numPoints = 4*n; return ShapeDistancetoPrimitive(numPoints, px, py); } //_____________________________________________________________________________ TGeoVolume *TGeoCone::Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step) { //--- Divide this cone shape belonging to volume "voldiv" into ndiv volumes // called divname, from start position with the given step. Returns pointer // to created division cell volume in case of Z divisions. For Z division // creates all volumes with different shapes and returns pointer to volume that // was divided. In case a wrong division axis is supplied, returns pointer to // volume that was divided. TGeoShape *shape; //--- shape to be created TGeoVolume *vol; //--- division volume to be created TGeoVolumeMulti *vmulti; //--- generic divided volume TGeoPatternFinder *finder; //--- finder to be attached TString opt = ""; //--- option to be attached Int_t id; Double_t end = start+ndiv*step; switch (iaxis) { case 1: //--- R division Error("Divide","division of a cone on R not implemented"); return 0; case 2: // --- Phi division finder = new TGeoPatternCylPhi(voldiv, ndiv, start, end); voldiv->SetFinder(finder); finder->SetDivIndex(voldiv->GetNdaughters()); shape = new TGeoConeSeg(fDz, fRmin1, fRmax1, fRmin2, fRmax2, -step/2, step/2); vol = new TGeoVolume(divname, shape, voldiv->GetMedium()); vmulti = gGeoManager->MakeVolumeMulti(divname, voldiv->GetMedium()); vmulti->AddVolume(vol); opt = "Phi"; for (id=0; id<ndiv; id++) { voldiv->AddNodeOffset(vol, id, start+id*step+step/2, opt.Data()); ((TGeoNodeOffset*)voldiv->GetNodes()->At(voldiv->GetNdaughters()-1))->SetFinder(finder); } return vmulti; case 3: //--- Z division vmulti = gGeoManager->MakeVolumeMulti(divname, voldiv->GetMedium()); finder = new TGeoPatternZ(voldiv, ndiv, start, end); voldiv->SetFinder(finder); finder->SetDivIndex(voldiv->GetNdaughters()); for (id=0; id<ndiv; id++) { Double_t z1 = start+id*step; Double_t z2 = start+(id+1)*step; Double_t rmin1n = 0.5*(fRmin1*(fDz-z1)+fRmin2*(fDz+z1))/fDz; Double_t rmax1n = 0.5*(fRmax1*(fDz-z1)+fRmax2*(fDz+z1))/fDz; Double_t rmin2n = 0.5*(fRmin1*(fDz-z2)+fRmin2*(fDz+z2))/fDz; Double_t rmax2n = 0.5*(fRmax1*(fDz-z2)+fRmax2*(fDz+z2))/fDz; shape = new TGeoCone(0.5*step,rmin1n, rmax1n, rmin2n, rmax2n); vol = new TGeoVolume(divname, shape, voldiv->GetMedium()); vmulti->AddVolume(vol); opt = "Z"; voldiv->AddNodeOffset(vol, id, start+id*step+step/2, opt.Data()); ((TGeoNodeOffset*)voldiv->GetNodes()->At(voldiv->GetNdaughters()-1))->SetFinder(finder); } return vmulti; default: Error("Divide", "Wrong axis type for division"); return 0; } } //_____________________________________________________________________________ const char *TGeoCone::GetAxisName(Int_t iaxis) const { // Returns name of axis IAXIS. switch (iaxis) { case 1: return "R"; case 2: return "PHI"; case 3: return "Z"; default: return "undefined"; } } //_____________________________________________________________________________ Double_t TGeoCone::GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi) const { // Get range of shape for a given axis. xlo = 0; xhi = 0; Double_t dx = 0; switch (iaxis) { case 2: xlo = 0.; xhi = 360.; return 360.; case 3: xlo = -fDz; xhi = fDz; dx = xhi-xlo; return dx; } return dx; } //_____________________________________________________________________________ void TGeoCone::GetBoundingCylinder(Double_t *param) const { //--- Fill vector param[4] with the bounding cylinder parameters. The order // is the following : Rmin, Rmax, Phi1, Phi2, dZ param[0] = TMath::Min(fRmin1, fRmin2); // Rmin param[0] *= param[0]; param[1] = TMath::Max(fRmax1, fRmax2); // Rmax param[1] *= param[1]; param[2] = 0.; // Phi1 param[3] = 360.; // Phi1 } //_____________________________________________________________________________ TGeoShape *TGeoCone::GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix * /*mat*/) const { // in case shape has some negative parameters, these has to be computed // in order to fit the mother if (!TestShapeBit(kGeoRunTimeShape)) return 0; if (!mother->TestShapeBit(kGeoCone)) { Error("GetMakeRuntimeShape", "invalid mother"); return 0; } Double_t rmin1, rmax1, rmin2, rmax2, dz; rmin1 = fRmin1; rmax1 = fRmax1; rmin2 = fRmin2; rmax2 = fRmax2; dz = fDz; if (fDz<0) dz=((TGeoCone*)mother)->GetDz(); if (fRmin1<0) rmin1 = ((TGeoCone*)mother)->GetRmin1(); if (fRmax1<0) rmax1 = ((TGeoCone*)mother)->GetRmax1(); if (fRmin2<0) rmin2 = ((TGeoCone*)mother)->GetRmin2(); if (fRmax2<0) rmax2 = ((TGeoCone*)mother)->GetRmax2(); return (new TGeoCone(rmin1, rmax1, rmin2, rmax2, dz)); } //_____________________________________________________________________________ void TGeoCone::InspectShape() const { // print shape parameters printf("*** Shape %s TGeoCone ***\n", GetName()); printf(" dz =: %11.5f\n", fDz); printf(" Rmin1 = %11.5f\n", fRmin1); printf(" Rmax1 = %11.5f\n", fRmax1); printf(" Rmin2 = %11.5f\n", fRmin2); printf(" Rmax2 = %11.5f\n", fRmax2); printf(" Bounding box:\n"); TGeoBBox::InspectShape(); } //_____________________________________________________________________________ void *TGeoCone::Make3DBuffer(const TGeoVolume *vol) const { TVirtualGeoPainter *painter = gGeoManager->GetGeomPainter(); if (!painter) return 0; return painter->MakeTube3DBuffer(vol); } //_____________________________________________________________________________ void TGeoCone::Paint(Option_t *option) { // paint this shape according to option TVirtualGeoPainter *painter = gGeoManager->GetGeomPainter(); if (!painter) return; painter->PaintTube(this, option); } //_____________________________________________________________________________ Double_t TGeoCone::Safety(Double_t *point, Bool_t in) const { // computes the closest distance from given point to this shape, according // to option. The matching point on the shape is stored in spoint. Double_t saf[3]; Double_t ro1 = 0.5*(fRmin1+fRmin2); Double_t tg1 = 0.5*(fRmin2-fRmin1)/fDz; Double_t cr1 = 1./TMath::Sqrt(1.+tg1*tg1); Double_t ro2 = 0.5*(fRmax1+fRmax2); Double_t tg2 = 0.5*(fRmax2-fRmax1)/fDz; Double_t cr2 = 1./TMath::Sqrt(1.+tg2*tg2); Double_t r=TMath::Sqrt(point[0]*point[0]+point[1]*point[1]); Double_t rin = tg1*point[2]+ro1; Double_t rout = tg2*point[2]+ro2; saf[0] = fDz-TMath::Abs(point[2]); saf[1] = (ro1>0)?((r-rin)*cr1):TGeoShape::Big(); saf[2] = (rout-r)*cr2; if (in) return saf[TMath::LocMin(3,saf)]; for (Int_t i=0; i<3; i++) saf[i]=-saf[i]; return saf[TMath::LocMax(3,saf)]; } //_____________________________________________________________________________ Double_t TGeoCone::SafetyS(Double_t *point, Bool_t in, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2, Int_t skipz) { // computes the closest distance from given point to this shape, according // to option. The matching point on the shape is stored in spoint. Double_t saf[3]; Double_t ro1 = 0.5*(rmin1+rmin2); Double_t tg1 = 0.5*(rmin2-rmin1)/dz; Double_t cr1 = 1./TMath::Sqrt(1.+tg1*tg1); Double_t ro2 = 0.5*(rmax1+rmax2); Double_t tg2 = 0.5*(rmax2-rmax1)/dz; Double_t cr2 = 1./TMath::Sqrt(1.+tg2*tg2); Double_t r=TMath::Sqrt(point[0]*point[0]+point[1]*point[1]); Double_t rin = tg1*point[2]+ro1; Double_t rout = tg2*point[2]+ro2; switch (skipz) { case 1: // skip lower Z plane saf[0] = dz - point[2]; break; case 2: // skip upper Z plane saf[0] = dz + point[2]; break; case 3: // skip both saf[0] = TGeoShape::Big(); break; default: saf[0] = dz-TMath::Abs(point[2]); } saf[1] = (ro1>0)?((r-rin)*cr1):TGeoShape::Big(); saf[2] = (rout-r)*cr2; if (in) return saf[TMath::LocMin(3,saf)]; for (Int_t i=0; i<3; i++) saf[i]=-saf[i]; return saf[TMath::LocMax(3,saf)]; } //_____________________________________________________________________________ void TGeoCone::SetConeDimensions(Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2) { if (rmin1>=0) { if (rmax1>0) { if (rmin1<=rmax1) { // normal rmin/rmax fRmin1 = rmin1; fRmax1 = rmax1; } else { fRmin1 = rmax1; fRmax1 = rmin1; Warning("SetConeDimensions", "rmin1>rmax1 Switch rmin1<->rmax1"); SetShapeBit(TGeoShape::kGeoBad); } } else { // run-time fRmin1 = rmin1; fRmax1 = rmax1; } } else { // run-time fRmin1 = rmin1; fRmax1 = rmax1; } if (rmin2>=0) { if (rmax2>0) { if (rmin2<=rmax2) { // normal rmin/rmax fRmin2 = rmin2; fRmax2 = rmax2; } else { fRmin2 = rmax2; fRmax2 = rmin2; Warning("SetConeDimensions", "rmin2>rmax2 Switch rmin2<->rmax2"); SetShapeBit(TGeoShape::kGeoBad); } } else { // run-time fRmin2 = rmin2; fRmax2 = rmax2; } } else { // run-time fRmin2 = rmin2; fRmax2 = rmax2; } fDz = dz; } //_____________________________________________________________________________ void TGeoCone::SetDimensions(Double_t *param) { Double_t dz = param[0]; Double_t rmin1 = param[1]; Double_t rmax1 = param[2]; Double_t rmin2 = param[3]; Double_t rmax2 = param[4]; SetConeDimensions(dz, rmin1, rmax1, rmin2, rmax2); } //_____________________________________________________________________________ void TGeoCone::SetPoints(Double_t *buff) const { // create cone mesh points Double_t dz, phi, dphi; Int_t j, n; n = gGeoManager->GetNsegments(); dphi = 360./n; dz = fDz; Int_t indx = 0; if (buff) { for (j = 0; j < n; j++) { phi = j*dphi*TMath::DegToRad(); buff[indx++] = fRmin1 * TMath::Cos(phi); buff[indx++] = fRmin1 * TMath::Sin(phi); buff[indx++] = -dz; } for (j = 0; j < n; j++) { phi = j*dphi*TMath::DegToRad(); buff[indx++] = fRmax1 * TMath::Cos(phi); buff[indx++] = fRmax1 * TMath::Sin(phi); buff[indx++] = -dz; } for (j = 0; j < n; j++) { phi = j*dphi*TMath::DegToRad(); buff[indx++] = fRmin2 * TMath::Cos(phi); buff[indx++] = fRmin2 * TMath::Sin(phi); buff[indx++] = dz; } for (j = 0; j < n; j++) { phi = j*dphi*TMath::DegToRad(); buff[indx++] = fRmax2 * TMath::Cos(phi); buff[indx++] = fRmax2 * TMath::Sin(phi); buff[indx++] = dz; } } } //_____________________________________________________________________________ void TGeoCone::SetPoints(Float_t *buff) const { // create cone mesh points Double_t dz, phi, dphi; Int_t j, n; n = gGeoManager->GetNsegments(); dphi = 360./n; dz = fDz; Int_t indx = 0; if (buff) { for (j = 0; j < n; j++) { phi = j*dphi*TMath::DegToRad(); buff[indx++] = fRmin1 * TMath::Cos(phi); buff[indx++] = fRmin1 * TMath::Sin(phi); buff[indx++] = -dz; } for (j = 0; j < n; j++) { phi = j*dphi*TMath::DegToRad(); buff[indx++] = fRmax1 * TMath::Cos(phi); buff[indx++] = fRmax1 * TMath::Sin(phi); buff[indx++] = -dz; } for (j = 0; j < n; j++) { phi = j*dphi*TMath::DegToRad(); buff[indx++] = fRmin2 * TMath::Cos(phi); buff[indx++] = fRmin2 * TMath::Sin(phi); buff[indx++] = dz; } for (j = 0; j < n; j++) { phi = j*dphi*TMath::DegToRad(); buff[indx++] = fRmax2 * TMath::Cos(phi); buff[indx++] = fRmax2 * TMath::Sin(phi); buff[indx++] = dz; } } } //_____________________________________________________________________________ Int_t TGeoCone::GetNmeshVertices() const { // Return number of vertices of the mesh representation Int_t n = gGeoManager->GetNsegments(); Int_t numPoints = n*4; return numPoints; } //_____________________________________________________________________________ void TGeoCone::Sizeof3D() const { // fill size of this 3-D object TVirtualGeoPainter *painter = gGeoManager->GetGeomPainter(); if (!painter) return; Int_t n = gGeoManager->GetNsegments(); Int_t numPoints = n*4; Int_t numSegs = n*8; Int_t numPolys = n*4; painter->AddSize3D(numPoints, numSegs, numPolys); } ClassImp(TGeoConeSeg) //_____________________________________________________________________________ TGeoConeSeg::TGeoConeSeg() { // Default constructor SetShapeBit(TGeoShape::kGeoConeSeg); fPhi1 = fPhi2 = 0.0; } //_____________________________________________________________________________ TGeoConeSeg::TGeoConeSeg(Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2, Double_t phi1, Double_t phi2) :TGeoCone(dz, rmin1, rmax1, rmin2, rmax2) { // Default constructor specifying minimum and maximum radius SetShapeBit(TGeoShape::kGeoConeSeg); SetConsDimensions(dz, rmin1, rmax1, rmin2, rmax2, phi1, phi2); ComputeBBox(); } //_____________________________________________________________________________ TGeoConeSeg::TGeoConeSeg(const char *name, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2, Double_t phi1, Double_t phi2) :TGeoCone(name, dz, rmin1, rmax1, rmin2, rmax2) { // Default constructor specifying minimum and maximum radius SetShapeBit(TGeoShape::kGeoConeSeg); SetConsDimensions(dz, rmin1, rmax1, rmin2, rmax2, phi1, phi2); ComputeBBox(); } //_____________________________________________________________________________ TGeoConeSeg::TGeoConeSeg(Double_t *param) :TGeoCone(0,0,0,0,0) { // Default constructor specifying minimum and maximum radius // param[0] = dz // param[1] = Rmin1 // param[2] = Rmax1 // param[3] = Rmin2 // param[4] = Rmax2 // param[5] = phi1 // param[6] = phi2 SetShapeBit(TGeoShape::kGeoConeSeg); SetDimensions(param); ComputeBBox(); } //_____________________________________________________________________________ TGeoConeSeg::~TGeoConeSeg() { // destructor } //_____________________________________________________________________________ void TGeoConeSeg::ComputeBBox() { // compute bounding box of the tube segment Double_t rmin, rmax; rmin = TMath::Min(fRmin1, fRmin2); rmax = TMath::Max(fRmax1, fRmax2); Double_t xc[4]; Double_t yc[4]; xc[0] = rmax*TMath::Cos(fPhi1*TMath::DegToRad()); yc[0] = rmax*TMath::Sin(fPhi1*TMath::DegToRad()); xc[1] = rmax*TMath::Cos(fPhi2*TMath::DegToRad()); yc[1] = rmax*TMath::Sin(fPhi2*TMath::DegToRad()); xc[2] = rmin*TMath::Cos(fPhi1*TMath::DegToRad()); yc[2] = rmin*TMath::Sin(fPhi1*TMath::DegToRad()); xc[3] = rmin*TMath::Cos(fPhi2*TMath::DegToRad()); yc[3] = rmin*TMath::Sin(fPhi2*TMath::DegToRad()); Double_t xmin = xc[TMath::LocMin(4, &xc[0])]; Double_t xmax = xc[TMath::LocMax(4, &xc[0])]; Double_t ymin = yc[TMath::LocMin(4, &yc[0])]; Double_t ymax = yc[TMath::LocMax(4, &yc[0])]; Double_t dp = fPhi2-fPhi1; Double_t ddp = -fPhi1; if (ddp<0) ddp+= 360; if (ddp<=dp) xmax = rmax; ddp = 90-fPhi1; if (ddp<0) ddp+= 360; if (ddp<=dp) ymax = rmax; ddp = 180-fPhi1; if (ddp<0) ddp+= 360; if (ddp<=dp) xmin = -rmax; ddp = 270-fPhi1; if (ddp<0) ddp+= 360; if (ddp<=dp) ymin = -rmax; fOrigin[0] = (xmax+xmin)/2; fOrigin[1] = (ymax+ymin)/2; fOrigin[2] = 0; fDX = (xmax-xmin)/2; fDY = (ymax-ymin)/2; fDZ = fDz; } //_____________________________________________________________________________ void TGeoConeSeg::ComputeNormal(Double_t *point, Double_t *dir, Double_t *norm) { // Compute normal to closest surface from POINT. Double_t saf[3]; Double_t ro1 = 0.5*(fRmin1+fRmin2); Double_t tg1 = 0.5*(fRmin2-fRmin1)/fDz; Double_t cr1 = 1./TMath::Sqrt(1.+tg1*tg1); Double_t ro2 = 0.5*(fRmax1+fRmax2); Double_t tg2 = 0.5*(fRmax2-fRmax1)/fDz; Double_t cr2 = 1./TMath::Sqrt(1.+tg2*tg2); Double_t c1 = TMath::Cos(fPhi1*TMath::DegToRad()); Double_t s1 = TMath::Sin(fPhi1*TMath::DegToRad()); Double_t c2 = TMath::Cos(fPhi2*TMath::DegToRad()); Double_t s2 = TMath::Sin(fPhi2*TMath::DegToRad()); Double_t r=TMath::Sqrt(point[0]*point[0]+point[1]*point[1]); Double_t rin = tg1*point[2]+ro1; Double_t rout = tg2*point[2]+ro2; saf[0] = TMath::Abs(fDz-TMath::Abs(point[2])); saf[1] = (ro1>0)?(TMath::Abs((r-rin)*cr1)):TGeoShape::Big(); saf[2] = TMath::Abs((rout-r)*cr2); Int_t i = TMath::LocMin(3,saf); if (TGeoShape::IsCloseToPhi(saf[i], point,c1,s1,c2,s2)) { TGeoShape::NormalPhi(point,dir,norm,c1,s1,c2,s2); return; } if (i==0) { norm[0] = norm[1] = 0.; norm[2] = TMath::Sign(1.,dir[2]); return; } Double_t phi = TMath::ATan2(point[1],point[0]); Double_t cphi = TMath::Cos(phi); Double_t sphi = TMath::Sin(phi); if (i==1) { norm[0] = cr1*cphi; norm[1] = cr1*sphi; norm[2] = tg1*cr1; } else { norm[0] = cr2*cphi; norm[1] = cr2*sphi; norm[2] = tg2*cr2; } if (norm[0]*dir[0]+norm[1]*dir[1]+norm[2]*dir[2]<0) { norm[0] = -norm[0]; norm[1] = -norm[1]; norm[2] = -norm[2]; } } //_____________________________________________________________________________ void TGeoConeSeg::ComputeNormalS(Double_t *point, Double_t *dir, Double_t *norm, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2, Double_t c1, Double_t s1, Double_t c2, Double_t s2) { // Compute normal to closest surface from POINT. Double_t saf[2]; Double_t ro1 = 0.5*(rmin1+rmin2); Double_t tg1 = 0.5*(rmin2-rmin1)/dz; Double_t cr1 = 1./TMath::Sqrt(1.+tg1*tg1); Double_t ro2 = 0.5*(rmax1+rmax2); Double_t tg2 = 0.5*(rmax2-rmax1)/dz; Double_t cr2 = 1./TMath::Sqrt(1.+tg2*tg2); Double_t r=TMath::Sqrt(point[0]*point[0]+point[1]*point[1]); Double_t rin = tg1*point[2]+ro1; Double_t rout = tg2*point[2]+ro2; saf[0] = (ro1>0)?(TMath::Abs((r-rin)*cr1)):TGeoShape::Big(); saf[1] = TMath::Abs((rout-r)*cr2); Int_t i = TMath::LocMin(2,saf); if (TGeoShape::IsCloseToPhi(saf[i], point,c1,s1,c2,s2)) { TGeoShape::NormalPhi(point,dir,norm,c1,s1,c2,s2); return; } Double_t phi = TMath::ATan2(point[1],point[0]); Double_t cphi = TMath::Cos(phi); Double_t sphi = TMath::Sin(phi); if (i==0) { norm[0] = cr1*cphi; norm[1] = cr1*sphi; norm[2] = tg1*cr1; } else { norm[0] = cr2*cphi; norm[1] = cr2*sphi; norm[2] = tg2*cr2; } if (norm[0]*dir[0]+norm[1]*dir[1]+norm[2]*dir[2]<0) { norm[0] = -norm[0]; norm[1] = -norm[1]; norm[2] = -norm[2]; } } //_____________________________________________________________________________ Bool_t TGeoConeSeg::Contains(Double_t *point) const { // test if point is inside this sphere if (!TGeoCone::Contains(point)) return kFALSE; Double_t phi = TMath::ATan2(point[1], point[0]) * TMath::RadToDeg(); if (phi < 0 ) phi+=360.; Double_t dphi = fPhi2 - fPhi1; Double_t ddp = phi-fPhi1; if (ddp < 0) ddp+=360.; // if (ddp > 360) ddp-=360; if (ddp > dphi) return kFALSE; return kTRUE; } //_____________________________________________________________________________ Double_t TGeoConeSeg::DistToCons(Double_t *point, Double_t *dir, Double_t r1, Double_t z1, Double_t r2, Double_t z2, Double_t phi1, Double_t phi2) { // Static method to compute distance to a conical surface with : // - r1, z1 - radius and Z position of lower base // - r2, z2 - radius and Z position of upper base // - phi1, phi2 - phi limits Double_t dz = z2-z1; if (dz<=0) { return TGeoShape::Big(); } Double_t dphi = phi2 - phi1; if (dphi < 0) dphi+=360.; // printf("phi1=%f phi2=%f dphi=%f\n", phi1, phi2, dphi); Double_t ro0 = 0.5*(r1+r2); Double_t fz = (r2-r1)/dz; Double_t r0sq = point[0]*point[0] + point[1]*point[1]; Double_t rc = ro0 + fz*(point[2]-0.5*(z1+z2)); Double_t a = dir[0]*dir[0] + dir[1]*dir[1] - fz*fz*dir[2]*dir[2]; Double_t b = point[0]*dir[0] + point[1]*dir[1] - fz*rc*dir[2]; Double_t c = r0sq - rc*rc; if (a==0) return TGeoShape::Big(); a = 1./a; b *= a; c *= a; Double_t delta = b*b - c; if (delta<0) return TGeoShape::Big(); delta = TMath::Sqrt(delta); Double_t snxt = -b-delta; Double_t ptnew[3]; Double_t ddp, phi; if (snxt>0) { // check Z range ptnew[2] = point[2] + snxt*dir[2]; if (((ptnew[2]-z1)*(ptnew[2]-z2)) < 0) { // check phi range ptnew[0] = point[0] + snxt*dir[0]; ptnew[1] = point[1] + snxt*dir[1]; phi = TMath::ATan2(ptnew[1], ptnew[0]) * TMath::RadToDeg(); if (phi < 0 ) phi+=360.; ddp = phi-phi1; if (ddp < 0) ddp+=360.; // printf("snxt1=%f phi=%f ddp=%f\n", snxt, phi, ddp); if (ddp<=dphi) return snxt; } } snxt = -b+delta; if (snxt>0) { // check Z range ptnew[2] = point[2] + snxt*dir[2]; if (((ptnew[2]-z1)*(ptnew[2]-z2)) < 0) { // check phi range ptnew[0] = point[0] + snxt*dir[0]; ptnew[1] = point[1] + snxt*dir[1]; phi = TMath::ATan2(ptnew[1], ptnew[0]) * TMath::RadToDeg(); if (phi < 0 ) phi+=360.; ddp = phi-phi1; if (ddp < 0) ddp+=360.; // printf("snxt2=%f phi=%f ddp=%f\n", snxt, phi, ddp); if (ddp<=dphi) return snxt; } } return TGeoShape::Big(); } //_____________________________________________________________________________ Double_t TGeoConeSeg::DistToPhiMin(Double_t *point, Double_t *dir, Double_t s1, Double_t c1, Double_t s2, Double_t c2, Double_t sm, Double_t cm) { // compute distance from poin to both phi planes. Return minimum. Double_t sfi1=TGeoShape::Big(); Double_t sfi2=TGeoShape::Big(); Double_t s=0; Double_t un = dir[0]*s1-dir[1]*c1; if (un!=0) { s=(point[1]*c1-point[0]*s1)/un; if (s>=0) { if (((point[1]+s*dir[1])*cm-(point[0]+s*dir[0])*sm)<=0) sfi1=s; } } un = dir[0]*s2-dir[1]*c2; if (un!=0) { s=(point[1]*c2-point[0]*s2)/un; if (s>=0) { if (((point[1]+s*dir[1])*cm-(point[0]+s*dir[0])*sm)>=0) sfi2=s; } } return TMath::Min(sfi1, sfi2); } //_____________________________________________________________________________ Double_t TGeoConeSeg::DistToOutS(Double_t *point, Double_t *dir, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2, Double_t phi1, Double_t phi2) { // compute distance from inside point to surface of the tube segment if (dz<=0) return TGeoShape::Big(); Double_t ph1 = phi1*TMath::DegToRad(); Double_t ph2 = phi2*TMath::DegToRad(); if (ph2<ph1) ph2+=2.*TMath::Pi(); Double_t phim = 0.5*(ph1+ph2); Double_t cm = TMath::Cos(phim); Double_t sm = TMath::Sin(phim); Double_t c1 = TMath::Cos(ph1); Double_t c2 = TMath::Cos(ph2); Double_t s1 = TMath::Sin(ph1); Double_t s2 = TMath::Sin(ph2); // compute distance to surface // Do Z Double_t sz = TGeoShape::Big(); if (dir[2]>0) { sz = (dz-point[2])/dir[2]; if (sz<=0) return 0.; } else { if (dir[2]<0) { sz = -(dz+point[2])/dir[2]; if (sz<=0) return 0.; } } // check conical surfaces Double_t sr1 = TGeoConeSeg::DistToCons(point, dir, rmin1, -dz, rmin2, dz, phi1, phi2); Double_t sr2 = TGeoConeSeg::DistToCons(point, dir, rmax1, -dz, rmax2, dz, phi1, phi2); Double_t sr = TMath::Min(sr1, sr2); // phi planes Double_t sfmin=DistToPhiMin(point, dir, s1, c1, s2, c2, sm, cm); return TMath::Min(TMath::Min(sz,sr), sfmin); } //_____________________________________________________________________________ Double_t TGeoConeSeg::DistToOut(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe) const { // compute distance from inside point to surface of the tube segment Double_t phi1 = fPhi1*TMath::DegToRad(); Double_t phi2 = fPhi2*TMath::DegToRad(); Double_t c1 = TMath::Cos(phi1); Double_t c2 = TMath::Cos(phi2); Double_t s1 = TMath::Sin(phi1); Double_t s2 = TMath::Sin(phi2); if (iact<3 && safe) { *safe = TGeoConeSeg::SafetyS(point, kTRUE, fDz,fRmin1,fRmax1,fRmin2,fRmax2,fPhi1,fPhi2); if (iact==0) return TGeoShape::Big(); if ((iact==1) && (*safe>step)) return TGeoShape::Big(); } // compute distance to surface // Do Z Double_t sz = TGeoShape::Big(); if (dir[2]>0) { sz = (fDz-point[2])/dir[2]; if (sz<=0) return 0.; } else { if (dir[2]<0) { sz = -(fDz+point[2])/dir[2]; if (sz<=0) return 0.; } } // check conical surfaces Double_t sr1 = TGeoConeSeg::DistToCons(point, dir, fRmin1, -fDz, fRmin2, fDz, fPhi1, fPhi2); Double_t sr2 = TGeoConeSeg::DistToCons(point, dir, fRmax1, -fDz, fRmax2, fDz, fPhi1, fPhi2); Double_t sr = TMath::Min(sr1, sr2); // phi planes Double_t phim = 0.5*(phi1+phi2); Double_t cm = TMath::Cos(phim); Double_t sm = TMath::Sin(phim); Double_t sfmin=DistToPhiMin(point, dir, s1, c1, s2, c2, sm, cm); return TMath::Min(TMath::Min(sz,sr), sfmin); } //_____________________________________________________________________________ Double_t TGeoConeSeg::DistToInS(Double_t *point, Double_t *dir, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2, Double_t dz, Double_t phi1, Double_t phi2) { // compute distance from outside point to surface of arbitrary tube Double_t snxt=TGeoShape::Big(); if (dz<=0) return TGeoShape::Big(); Double_t ro1=0.5*(rmin1+rmin2); Double_t tg1=0.5*(rmin2-rmin1)/dz; Double_t ro2=0.5*(rmax1+rmax2); Double_t tg2=0.5*(rmax2-rmax1)/dz; Double_t ph1 = phi1*TMath::DegToRad(); Double_t ph2 = phi2*TMath::DegToRad(); Double_t c1 = TMath::Cos(ph1); Double_t s1 = TMath::Sin(ph1); Double_t c2 = TMath::Cos(ph2); Double_t s2 = TMath::Sin(ph2); Double_t fio = 0.5*(ph1+ph2); Double_t cfio = TMath::Cos(fio); Double_t sfio = TMath::Sin(fio); Double_t dfi = 0.5*(ph2-ph1); Double_t cdfi = TMath::Cos(dfi); Double_t cpsi; // intersection with Z planes Double_t s, xi, yi, zi, riq, r1q, r2q; if (TMath::Abs(point[2])>=dz) { if ((point[2]*dir[2])<0) { s=(TMath::Abs(point[2])-dz)/TMath::Abs(dir[2]); xi=point[0]+s*dir[0]; yi=point[1]+s*dir[1]; riq=xi*xi+yi*yi; if (point[2]<0) { r1q=rmin1*rmin1; r2q=rmax1*rmax1; } else { r1q=rmin2*rmin2; r2q=rmax2*rmax2; } if ((r1q<=riq) && (riq<=r2q)) { // gGeoManager->SetNormalChecked(TMath::Abs(dir[2])); if (riq==0) return s; cpsi=(xi*cfio+yi*sfio)/TMath::Sqrt(riq); if (cpsi>=cdfi) return s; } } } // intersection with cones Double_t sr1 = TGeoConeSeg::DistToCons(point, dir, rmin1, -dz, rmin2, dz, phi1, phi2); Double_t sr2 = TGeoConeSeg::DistToCons(point, dir, rmax1, -dz, rmax2, dz, phi1, phi2); snxt = TMath::Min(sr1, sr2); // check phi planes Double_t un; un=dir[0]*s1-dir[1]*c1; if (un!=0) { s=(point[1]*c1-point[0]*s1)/un; if ((s>=0) && (s<snxt)) { zi=point[2]+s*dir[2]; if (TMath::Abs(zi)<=dz) { xi=point[0]+s*dir[0]; yi=point[1]+s*dir[1]; riq=xi*xi+yi*yi; r1q=(tg1*zi+ro1)*(tg1*zi+ro1); r2q=(tg2*zi+ro2)*(tg2*zi+ro2); if ((r1q<=riq) && (riq<=r2q)) { if ((yi*cfio-xi*sfio)<=0) { snxt = s; // gGeoManager->SetNormalChecked(TMath::Abs(un)); } } } } } un=dir[0]*s2-dir[1]*c2; if (un!=0) { s=(point[1]*c2-point[0]*s2)/un; if ((s>=0) && (s<snxt)) { zi=point[2]+s*dir[2]; if (TMath::Abs(zi)<=dz) { xi=point[0]+s*dir[0]; yi=point[1]+s*dir[1]; riq=xi*xi+yi*yi; r1q=(tg1*zi+ro1)*(tg1*zi+ro1); r2q=(tg2*zi+ro2)*(tg2*zi+ro2); if ((r1q<=riq) && (riq<=r2q)) { if ((yi*cfio-xi*sfio)>=0) { // gGeoManager->SetNormalChecked(TMath::Abs(un)); snxt = s; } } } } } return snxt; } //_____________________________________________________________________________ Double_t TGeoConeSeg::DistToIn(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe) const { // compute distance from outside point to surface of the tube // compute safe radius if (iact<3 && safe) { *safe = Safety(point, kFALSE); if (iact==0) return TGeoShape::Big(); if ((iact==1) && (*safe>step)) return TGeoShape::Big(); } return TGeoConeSeg::DistToInS(point, dir,fRmin1,fRmax1,fRmin2,fRmax2,fDz, fPhi1, fPhi2); } //_____________________________________________________________________________ Int_t TGeoConeSeg::DistancetoPrimitive(Int_t px, Int_t py) { // compute closest distance from point px,py to each corner Int_t n = gGeoManager->GetNsegments()+1; const Int_t numPoints = 4*n; return ShapeDistancetoPrimitive(numPoints, px, py); } //_____________________________________________________________________________ TGeoVolume *TGeoConeSeg::Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step) { //--- Divide this cone segment shape belonging to volume "voldiv" into ndiv volumes // called divname, from start position with the given step. Returns pointer // to created division cell volume in case of Z divisions. For Z division // creates all volumes with different shapes and returns pointer to volume that // was divided. In case a wrong division axis is supplied, returns pointer to // volume that was divided. TGeoShape *shape; //--- shape to be created TGeoVolume *vol; //--- division volume to be created TGeoVolumeMulti *vmulti; //--- generic divided volume TGeoPatternFinder *finder; //--- finder to be attached TString opt = ""; //--- option to be attached Double_t dphi; Int_t id; Double_t end = start+ndiv*step; switch (iaxis) { case 1: //--- R division Error("Divide","division of a cone segment on R not implemented"); return 0; case 2: //--- Phi division dphi = fPhi2-fPhi1; if (dphi<0) dphi+=360.; finder = new TGeoPatternCylPhi(voldiv, ndiv, start, end); voldiv->SetFinder(finder); finder->SetDivIndex(voldiv->GetNdaughters()); shape = new TGeoConeSeg(fDz, fRmin1, fRmax1, fRmin2, fRmax2, -step/2, step/2); vol = new TGeoVolume(divname, shape, voldiv->GetMedium()); vmulti = gGeoManager->MakeVolumeMulti(divname, voldiv->GetMedium()); vmulti->AddVolume(vol); opt = "Phi"; for (id=0; id<ndiv; id++) { voldiv->AddNodeOffset(vol, id, start+id*step+step/2, opt.Data()); ((TGeoNodeOffset*)voldiv->GetNodes()->At(voldiv->GetNdaughters()-1))->SetFinder(finder); } return vmulti; case 3: //--- Z division finder = new TGeoPatternZ(voldiv, ndiv, start, end); vmulti = gGeoManager->MakeVolumeMulti(divname, voldiv->GetMedium()); voldiv->SetFinder(finder); finder->SetDivIndex(voldiv->GetNdaughters()); for (id=0; id<ndiv; id++) { Double_t z1 = start+id*step; Double_t z2 = start+(id+1)*step; Double_t rmin1n = 0.5*(fRmin1*(fDz-z1)+fRmin2*(fDz+z1))/fDz; Double_t rmax1n = 0.5*(fRmax1*(fDz-z1)+fRmax2*(fDz+z1))/fDz; Double_t rmin2n = 0.5*(fRmin1*(fDz-z2)+fRmin2*(fDz+z2))/fDz; Double_t rmax2n = 0.5*(fRmax1*(fDz-z2)+fRmax2*(fDz+z2))/fDz; shape = new TGeoConeSeg(step/2, rmin1n, rmax1n, rmin2n, rmax2n, fPhi1, fPhi2); vol = new TGeoVolume(divname, shape, voldiv->GetMedium()); vmulti->AddVolume(vol); opt = "Z"; voldiv->AddNodeOffset(vol, id, start+id*step+step/2, opt.Data()); ((TGeoNodeOffset*)voldiv->GetNodes()->At(voldiv->GetNdaughters()-1))->SetFinder(finder); } return vmulti; default: Error("Divide", "Wrong axis type for division"); return 0; } } //_____________________________________________________________________________ Double_t TGeoConeSeg::GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi) const { // Get range of shape for a given axis. xlo = 0; xhi = 0; Double_t dx = 0; switch (iaxis) { case 2: xlo = fPhi1; xhi = fPhi2; dx = xhi-xlo; return dx; case 3: xlo = -fDz; xhi = fDz; dx = xhi-xlo; return dx; } return dx; } //_____________________________________________________________________________ void TGeoConeSeg::GetBoundingCylinder(Double_t *param) const { //--- Fill vector param[4] with the bounding cylinder parameters. The order // is the following : Rmin, Rmax, Phi1, Phi2 param[0] = TMath::Min(fRmin1, fRmin2); // Rmin param[0] *= param[0]; param[1] = TMath::Max(fRmax1, fRmax2); // Rmax param[1] *= param[1]; param[2] = (fPhi1<0)?(fPhi1+360.):fPhi1; // Phi1 param[3] = fPhi2; // Phi2 while (param[3]<param[2]) param[3]+=360.; } //_____________________________________________________________________________ TGeoShape *TGeoConeSeg::GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix * /*mat*/) const { // in case shape has some negative parameters, these has to be computed // in order to fit the mother if (!TestShapeBit(kGeoRunTimeShape)) return 0; if (!mother->TestShapeBit(kGeoConeSeg)) { Error("GetMakeRuntimeShape", "invalid mother"); return 0; } Double_t rmin1, rmax1, rmin2, rmax2, dz; rmin1 = fRmin1; rmax1 = fRmax1; rmin2 = fRmin2; rmax2 = fRmax2; dz = fDz; if (fDz<0) dz=((TGeoCone*)mother)->GetDz(); if (fRmin1<0) rmin1 = ((TGeoCone*)mother)->GetRmin1(); if ((fRmax1<0) || (fRmax1<fRmin1)) rmax1 = ((TGeoCone*)mother)->GetRmax1(); if (fRmin2<0) rmin2 = ((TGeoCone*)mother)->GetRmin2(); if ((fRmax2<0) || (fRmax2<fRmin2)) rmax2 = ((TGeoCone*)mother)->GetRmax2(); return (new TGeoConeSeg(rmin1, rmax1, rmin2, rmax2, dz, fPhi1, fPhi2)); } //_____________________________________________________________________________ void TGeoConeSeg::InspectShape() const { // print shape parameters printf("*** Shape %s: TGeoConeSeg ***\n", GetName()); printf(" dz = %11.5f\n", fDz); printf(" Rmin1 = %11.5f\n", fRmin1); printf(" Rmax1 = %11.5f\n", fRmax1); printf(" Rmin2 = %11.5f\n", fRmin2); printf(" Rmax2 = %11.5f\n", fRmax2); printf(" phi1 = %11.5f\n", fPhi1); printf(" phi2 = %11.5f\n", fPhi2); printf(" Bounding box:\n"); TGeoBBox::InspectShape(); } //_____________________________________________________________________________ void *TGeoConeSeg::Make3DBuffer(const TGeoVolume *vol) const { TVirtualGeoPainter *painter = gGeoManager->GetGeomPainter(); if (!painter) return 0; return painter->MakeTubs3DBuffer(vol); } //_____________________________________________________________________________ void TGeoConeSeg::Paint(Option_t *option) { // paint this shape according to option TVirtualGeoPainter *painter = gGeoManager->GetGeomPainter(); if (!painter) return; painter->PaintTubs(this, option); } //_____________________________________________________________________________ Double_t TGeoConeSeg::Safety(Double_t *point, Bool_t in) const { // computes the closest distance from given point to this shape, according // to option. The matching point on the shape is stored in spoint. Double_t saf[3]; Double_t ro1 = 0.5*(fRmin1+fRmin2); Double_t tg1 = 0.5*(fRmin2-fRmin1)/fDz; Double_t cr1 = 1./TMath::Sqrt(1.+tg1*tg1); Double_t ro2 = 0.5*(fRmax1+fRmax2); Double_t tg2 = 0.5*(fRmax2-fRmax1)/fDz; Double_t cr2 = 1./TMath::Sqrt(1.+tg2*tg2); Double_t r=TMath::Sqrt(point[0]*point[0]+point[1]*point[1]); Double_t rin = tg1*point[2]+ro1; Double_t rout = tg2*point[2]+ro2; Double_t safe = TGeoShape::Big(); if (in) { saf[0] = fDz-TMath::Abs(point[2]); saf[1] = (r-rin)*cr1; saf[2] = (rout-r)*cr2; safe = saf[TMath::LocMin(3,saf)]; } else { saf[0] = TMath::Abs(point[2])-fDz; // positive if inside saf[1] = (rin-r)*cr1; saf[2] = (r-rout)*cr2; safe = saf[TMath::LocMax(3,saf)]; } Double_t safphi = TGeoShape::SafetyPhi(point, in, fPhi1, fPhi2); if (in) return TMath::Min(safe, safphi); return TMath::Max(safe, safphi); } //_____________________________________________________________________________ Double_t TGeoConeSeg::SafetyS(Double_t *point, Bool_t in, Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2, Double_t phi1, Double_t phi2, Int_t skipz) { // Static method to compute the closest distance from given point to this shape. Double_t saf[3]; Double_t ro1 = 0.5*(rmin1+rmin2); Double_t tg1 = 0.5*(rmin2-rmin1)/dz; Double_t cr1 = 1./TMath::Sqrt(1.+tg1*tg1); Double_t ro2 = 0.5*(rmax1+rmax2); Double_t tg2 = 0.5*(rmax2-rmax1)/dz; Double_t cr2 = 1./TMath::Sqrt(1.+tg2*tg2); Double_t r=TMath::Sqrt(point[0]*point[0]+point[1]*point[1]); Double_t rin = tg1*point[2]+ro1; Double_t rout = tg2*point[2]+ro2; Double_t safe = TGeoShape::Big(); switch (skipz) { case 1: // skip lower Z plane saf[0] = dz - point[2]; break; case 2: // skip upper Z plane saf[0] = dz + point[2]; break; case 3: // skip both saf[0] = TGeoShape::Big(); default: saf[0] = dz-TMath::Abs(point[2]); } saf[1] = (r-rin)*cr1; saf[2] = (rout-r)*cr2; Double_t safphi = TGeoShape::SafetyPhi(point,in,phi1,phi2); if (in) { safe = saf[TMath::LocMin(3,saf)]; return TMath::Min(safe,safphi); } for (Int_t i=0; i<3; i++) saf[i]=-saf[i]; safe = saf[TMath::LocMax(3,saf)]; return TMath::Max(safe,safphi); } //_____________________________________________________________________________ void TGeoConeSeg::SetConsDimensions(Double_t dz, Double_t rmin1, Double_t rmax1, Double_t rmin2, Double_t rmax2, Double_t phi1, Double_t phi2) { fDz = dz; fRmin1 = rmin1; fRmax1 = rmax1; fRmin2 = rmin2; fRmax2 = rmax2; fPhi1 = phi1; if (fPhi1<0) fPhi1+=360.; fPhi2 = phi2; while (fPhi2<fPhi1) fPhi2+=360.; } //_____________________________________________________________________________ void TGeoConeSeg::SetDimensions(Double_t *param) { Double_t dz = param[0]; Double_t rmin1 = param[1]; Double_t rmax1 = param[2]; Double_t rmin2 = param[3]; Double_t rmax2 = param[4]; Double_t phi1 = param[5]; Double_t phi2 = param[6]; SetConsDimensions(dz, rmin1, rmax1,rmin2, rmax2, phi1, phi2); } //_____________________________________________________________________________ void TGeoConeSeg::SetPoints(Double_t *buff) const { // create cone segment mesh points Int_t j, n; Float_t dphi,phi,phi1, phi2,dz; n = gGeoManager->GetNsegments()+1; dz = fDz; phi1 = fPhi1; phi2 = fPhi2; dphi = (phi2-phi1)/(n-1); Int_t indx = 0; if (buff) { for (j = 0; j < n; j++) { phi = (fPhi1+j*dphi)*TMath::DegToRad(); buff[indx++] = fRmin1 * TMath::Cos(phi); buff[indx++] = fRmin1 * TMath::Sin(phi); buff[indx++] = -dz; } for (j = 0; j < n; j++) { phi = (fPhi1+j*dphi)*TMath::DegToRad(); buff[indx++] = fRmax1 * TMath::Cos(phi); buff[indx++] = fRmax1 * TMath::Sin(phi); buff[indx++] = -dz; } for (j = 0; j < n; j++) { phi = (fPhi1+j*dphi)*TMath::DegToRad(); buff[indx++] = fRmin2 * TMath::Cos(phi); buff[indx++] = fRmin2 * TMath::Sin(phi); buff[indx++] = dz; } for (j = 0; j < n; j++) { phi = (fPhi1+j*dphi)*TMath::DegToRad(); buff[indx++] = fRmax2 * TMath::Cos(phi); buff[indx++] = fRmax2 * TMath::Sin(phi); buff[indx++] = dz; } } } //_____________________________________________________________________________ void TGeoConeSeg::SetPoints(Float_t *buff) const { // create cone segment mesh points Int_t j, n; Float_t dphi,phi,phi1, phi2,dz; n = gGeoManager->GetNsegments()+1; dz = fDz; phi1 = fPhi1; phi2 = fPhi2; dphi = (phi2-phi1)/(n-1); Int_t indx = 0; if (buff) { for (j = 0; j < n; j++) { phi = (fPhi1+j*dphi)*TMath::DegToRad(); buff[indx++] = fRmin1 * TMath::Cos(phi); buff[indx++] = fRmin1 * TMath::Sin(phi); buff[indx++] = -dz; } for (j = 0; j < n; j++) { phi = (fPhi1+j*dphi)*TMath::DegToRad(); buff[indx++] = fRmax1 * TMath::Cos(phi); buff[indx++] = fRmax1 * TMath::Sin(phi); buff[indx++] = -dz; } for (j = 0; j < n; j++) { phi = (fPhi1+j*dphi)*TMath::DegToRad(); buff[indx++] = fRmin2 * TMath::Cos(phi); buff[indx++] = fRmin2 * TMath::Sin(phi); buff[indx++] = dz; } for (j = 0; j < n; j++) { phi = (fPhi1+j*dphi)*TMath::DegToRad(); buff[indx++] = fRmax2 * TMath::Cos(phi); buff[indx++] = fRmax2 * TMath::Sin(phi); buff[indx++] = dz; } } } //_____________________________________________________________________________ Int_t TGeoConeSeg::GetNmeshVertices() const { // Return number of vertices of the mesh representation Int_t n = gGeoManager->GetNsegments()+1; Int_t numPoints = n*4; return numPoints; } //_____________________________________________________________________________ void TGeoConeSeg::Sizeof3D() const { // fill size of this 3-D object TVirtualGeoPainter *painter = gGeoManager->GetGeomPainter(); if (!painter) return; Int_t n = gGeoManager->GetNsegments()+1; Int_t numPoints = n*4; Int_t numSegs = n*8; Int_t numPolys = n*4-2; painter->AddSize3D(numPoints, numSegs, numPolys); }