| 1 | /* ======================================================================== *\
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| 2 | !
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| 3 | ! *
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| 4 | ! * This file is part of MARS, the MAGIC Analysis and Reconstruction
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| 5 | ! * Software. It is distributed to you in the hope that it can be a useful
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| 6 | ! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
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| 7 | ! * It is distributed WITHOUT ANY WARRANTY.
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| 8 | ! *
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| 9 | ! * Permission to use, copy, modify and distribute this software and its
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| 10 | ! * documentation for any purpose is hereby granted without fee,
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| 11 | ! * provided that the above copyright notice appear in all copies and
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| 12 | ! * that both that copyright notice and this permission notice appear
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| 13 | ! * in supporting documentation. It is provided "as is" without express
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| 14 | ! * or implied warranty.
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| 15 | ! *
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| 16 | !
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| 17 | !
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| 18 | ! Author(s): Thomas Bretz, 5/2005 <mailto:tbretz@astro.uni-wuerzburg.de>
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| 19 | !
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| 20 | ! Copyright: MAGIC Software Development, 2000-2005
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| 21 | !
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| 22 | !
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| 23 | \* ======================================================================== */
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| 24 |
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| 25 | //////////////////////////////////////////////////////////////////////////////
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| 26 | //
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| 27 | // MHDisp
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| 28 | //
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| 29 | // Create a false source plot using disp.
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| 30 | //
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| 31 | //////////////////////////////////////////////////////////////////////////////
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| 32 | #include "MHDisp.h"
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| 33 |
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| 34 | #include <TStyle.h>
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| 35 | #include <TCanvas.h>
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| 36 |
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| 37 | #include <TF1.h>
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| 38 | #include <TF2.h>
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| 39 | #include <TProfile.h>
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| 40 |
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| 41 | #include "MParList.h"
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| 42 | #include "MParameters.h"
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| 43 |
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| 44 | #include "MHillasExt.h"
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| 45 | #include "MHillasSrc.h"
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| 46 | #include "MSrcPosCam.h"
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| 47 | #include "MPointingPos.h"
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| 48 |
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| 49 | #include "MLog.h"
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| 50 | #include "MLogManip.h"
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| 51 |
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| 52 | ClassImp(MHDisp);
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| 53 |
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| 54 | using namespace std;
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| 55 |
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| 56 | // --------------------------------------------------------------------------
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| 57 | //
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| 58 | // Default Constructor
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| 59 | //
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| 60 | MHDisp::MHDisp(const char *name, const char *title)
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| 61 | : fHilExt(0), fDisp(0)
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| 62 | {
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| 63 | //
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| 64 | // set the name and title of this object
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| 65 | //
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| 66 | fName = name ? name : "MHDisp";
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| 67 | fTitle = title ? title : "3D-plot using Disp vs x, y";
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| 68 |
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| 69 | fHist.SetDirectory(NULL);
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| 70 |
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| 71 | fHist.SetName("Alpha");
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| 72 | fHist.SetTitle("3D-plot of ThetaSq vs x, y");
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| 73 | fHist.SetXTitle("x [\\circ]");
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| 74 | fHist.SetYTitle("y [\\circ]");
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| 75 | fHist.SetZTitle("\\vartheta [deg^{2}]");
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| 76 | }
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| 77 |
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| 78 | // --------------------------------------------------------------------------
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| 79 | //
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| 80 | // Set binnings (takes BinningFalseSource) and prepare filling of the
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| 81 | // histogram.
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| 82 | //
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| 83 | // Also search for MTime, MObservatory and MPointingPos
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| 84 | //
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| 85 | //MHillasExt *ext=0;
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| 86 | Bool_t MHDisp::SetupFill(const MParList *plist)
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| 87 | {
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| 88 | if (!MHFalseSource::SetupFill(plist))
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| 89 | return kFALSE;
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| 90 |
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| 91 | fDisp = (MParameterD*)plist->FindObject("Disp", "MParameterD");
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| 92 | if (!fDisp)
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| 93 | {
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| 94 | *fLog << err << "Disp [MParameterD] not found... abort." << endl;
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| 95 | return kFALSE;
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| 96 | }
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| 97 |
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| 98 | MParameterD *p = (MParameterD*)plist->FindObject("M3lCut", "MParameterD");
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| 99 | if (!p)
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| 100 | {
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| 101 | *fLog << err << "M3lCut [MParameterD] not found... abort." << endl;
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| 102 | return kFALSE;
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| 103 | }
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| 104 | fM3lCut = TMath::Abs(p->GetVal());
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| 105 |
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| 106 | p = (MParameterD*)plist->FindObject("DispXi", "MParameterD");
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| 107 | if (!p)
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| 108 | {
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| 109 | *fLog << err << "DispXi [MParameterD] not found... abort." << endl;
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| 110 | return kFALSE;
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| 111 | }
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| 112 | fXi = p->GetVal();
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| 113 |
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| 114 | p = (MParameterD*)plist->FindObject("DispXiTheta", "MParameterD");
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| 115 | if (!p)
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| 116 | {
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| 117 | *fLog << err << "DispXiTheta [MParameterD] not found... abort." << endl;
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| 118 | return kFALSE;
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| 119 | }
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| 120 | fXiTheta = p->GetVal();
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| 121 |
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| 122 | fHilExt = (MHillasExt*)plist->FindObject("MHillasExt");
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| 123 | if (!fHilExt)
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| 124 | {
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| 125 | *fLog << err << "MHillasExt not found... aborting." << endl;
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| 126 | return kFALSE;
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| 127 | }
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| 128 |
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| 129 | // Initialize all bins with a small (=0) value otherwise
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| 130 | // these bins are not displayed
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| 131 | for (int x=0; x<fHist.GetNbinsX(); x++)
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| 132 | for (int y=0; y<fHist.GetNbinsX(); y++)
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| 133 | fHist.Fill(fHist.GetXaxis()->GetBinCenter(x+1),
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| 134 | fHist.GetYaxis()->GetBinCenter(y+1),
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| 135 | 0.0, 1e-10);
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| 136 |
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| 137 | return kTRUE;
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| 138 | }
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| 139 |
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| 140 | // --------------------------------------------------------------------------
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| 141 | //
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| 142 | // Fill the histogram. For details see the code or the class description
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| 143 | //
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| 144 | Bool_t MHDisp::Fill(const MParContainer *par, const Stat_t w)
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| 145 | {
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| 146 | const MHillas *hil = dynamic_cast<const MHillas*>(par);
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| 147 | if (!hil)
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| 148 | {
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| 149 | *fLog << err << "MHDisp::Fill: No container specified!" << endl;
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| 150 | return kFALSE;
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| 151 | }
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| 152 |
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| 153 | // Get camera rotation angle
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| 154 | Double_t rho = 0;
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| 155 | if (fTime && fObservatory && fPointPos)
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| 156 | rho = fPointPos->RotationAngle(*fObservatory, *fTime);
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| 157 |
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| 158 | // Get Disp from Parlist
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| 159 | const Double_t disp = fDisp->GetVal();
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| 160 |
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| 161 | // Calculate where disp is pointing
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| 162 | TVector2 pos1(hil->GetCosDelta(), hil->GetSinDelta());
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| 163 | TVector2 pos2(hil->GetCosDelta(), hil->GetSinDelta());
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| 164 | pos1 *= disp;
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| 165 | pos2 *= -disp;
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| 166 |
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| 167 | pos1 += hil->GetMean()*fMm2Deg;
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| 168 | pos2 += hil->GetMean()*fMm2Deg;
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| 169 |
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| 170 | // gammaweight: If we couldn't decide which position makes the
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| 171 | // event a gamma, both position are assigned 'half of a gamma'
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| 172 | Double_t gweight = 0.5;
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| 173 |
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| 174 | // Check whether our g/h-separation allows to asign definitly
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| 175 | // to one unique position. Therefor we requeire that the event
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| 176 | // would be considered a gamma for one, but not for the other
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| 177 | // position. This can only be the case if the third moment
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| 178 | // has a value higher than the absolute cut value.
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| 179 | if (TMath::Abs(fHilExt->GetM3Long()) > fM3lCut)
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| 180 | {
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| 181 | // Because at one position the event is considered a gamma
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| 182 | // we have to find out which position it is...
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| 183 | MSrcPosCam src;
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| 184 | MHillasSrc hsrc;
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| 185 | hsrc.SetSrcPos(&src);
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| 186 |
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| 187 | // Calculate the sign for one of the desired source positions
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| 188 | // The other position must have the opposite sign
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| 189 | src.SetXY(pos1/fMm2Deg);
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| 190 | if (hsrc.Calc(*hil)>0)
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| 191 | {
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| 192 | *fLog << warn << "Calculation of MHillasSrc failed." << endl;
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| 193 | return kFALSE;
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| 194 | }
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| 195 | const Double_t m3l = fHilExt->GetM3Long()*TMath::Sign(1.0f, hsrc.GetCosDeltaAlpha())*fMm2Deg;
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| 196 |
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| 197 | gweight = m3l>fM3lCut ? 1 : 0;
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| 198 | }
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| 199 |
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| 200 | // Now we can safly derotate both position...
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| 201 | //TVector2 srcp(fSrcPos->GetXY());
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| 202 | if (rho!=0)
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| 203 | {
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| 204 | pos1=pos1.Rotate(-rho);
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| 205 | pos2=pos2.Rotate(-rho);
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| 206 | //srcp=srcp.Rotate(-rho);
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| 207 | }
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| 208 |
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| 209 | /*if (fSrcPos)
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| 210 | {
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| 211 | pos1 -= srcp*fMm2Deg;
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| 212 | pos2 -= srcp*fMm2Deg;
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| 213 | }*/
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| 214 |
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| 215 | // Workaround: Number-of-entries
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| 216 | if (gweight>0.25)
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| 217 | fHist.Fill(pos1.X(), pos1.Y(), 0.0, w*gweight);
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| 218 | if (gweight<0.75)
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| 219 | fHist.Fill(pos2.X(), pos2.Y(), 0.0, w*(1-gweight));
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| 220 |
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| 221 | return kTRUE;
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| 222 | }
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| 223 | /*
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| 224 | static Double_t FcnGauss2d(Double_t *x, Double_t *par)
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| 225 | {
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| 226 | TVector2 v = TVector2(x[0], x[1]).Rotate(par[5]*TMath::DegToRad());
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| 227 |
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| 228 | const Double_t g0 = TMath::Gaus(v.X(), par[1], par[2]);
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| 229 | const Double_t g1 = TMath::Gaus(v.Y(), par[3], par[4]);
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| 230 |
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| 231 | //Gaus(Double_t x, Double_t mean=0, Double_t sigma=1, Bool_t norm=kFALSE);
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| 232 | return par[0]*g0*g1 + par[6]*(v.X()*v.X() + v.Y()*v.Y()) + par[7];
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| 233 | }*/
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| 234 |
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| 235 | void MHDisp::Paint(Option_t *o)
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| 236 | {
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| 237 | TVirtualPad *pad = gPad;
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| 238 |
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| 239 | pad->cd(1);
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| 240 |
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| 241 | fHist.GetZaxis()->SetRange(0,9999);
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| 242 | TH1 *h1=fHist.Project3D("yx_on");
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| 243 | gStyle->SetPalette(1, 0);
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| 244 |
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| 245 | Int_t ix, iy, iz;
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| 246 | TF1 func("fcn", "gaus + [3]*x*x + [4]");
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| 247 |
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| 248 | pad->cd(3);
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| 249 | TH1 *h2 = (TH1*)gPad->FindObject("Radial");
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| 250 | if (h1 && h2)
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| 251 | {
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| 252 | h2->Reset();
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| 253 |
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| 254 | h1->GetMaximumBin(ix, iy, iz);
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| 255 |
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| 256 | const Double_t x0 = h1->GetXaxis()->GetBinCenter(ix);
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| 257 | const Double_t y0 = h1->GetYaxis()->GetBinCenter(iy);
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| 258 |
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| 259 | h2->SetTitle(Form("Profile @ (%.2f\\circ, %.2f\\circ)", x0, y0));
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| 260 |
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| 261 | for (int x=0; x<h1->GetNbinsX(); x++)
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| 262 | for (int y=0; y<h1->GetNbinsY(); y++)
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| 263 | {
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| 264 | const Double_t r = TMath::Hypot(h1->GetXaxis()->GetBinCenter(x+1)-x0,
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| 265 | h1->GetXaxis()->GetBinCenter(y+1)-y0);
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| 266 | h2->Fill(r, h1->GetBinContent(x+1, y+1));
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| 267 | }
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| 268 |
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| 269 | func.SetLineWidth(1);
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| 270 | func.SetLineColor(kBlue);
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| 271 | func.SetParameter(0, h2->GetBinContent(1));
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| 272 | func.FixParameter(1, 0);
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| 273 | func.SetParameter(2, 0.05);
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| 274 | func.SetParameter(4, h2->GetBinContent(10));
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| 275 | h2->Fit(&func, "IMQ");
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| 276 | }
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| 277 | /*
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| 278 | if (h1)
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| 279 | {
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| 280 | const Double_t maxr = 0.9*TMath::Abs(fHist.GetXaxis()->GetXmax());
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| 281 |
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| 282 | TF2 f2d("Gaus2D", FcnGauss2d, -maxr, maxr, -maxr, maxr, 8);
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| 283 | f2d.SetLineWidth(1);
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| 284 |
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| 285 | f2d.SetParameter(0, h1->GetMaximum()*5); // A
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| 286 | f2d.SetParLimits(1, h1->GetXaxis()->GetBinCenter(ix)-h1->GetXaxis()->GetBinWidth(ix)*5, h1->GetXaxis()->GetBinCenter(ix)+h1->GetXaxis()->GetBinWidth(ix)); // mu_1
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| 287 | f2d.SetParLimits(3, h1->GetYaxis()->GetBinCenter(iy)-h1->GetYaxis()->GetBinWidth(iy)*5, h1->GetYaxis()->GetBinCenter(iy)+h1->GetYaxis()->GetBinWidth(iy)); // mu_2
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| 288 | f2d.SetParLimits(2, 0, func.GetParameter(2)*5); // sigma_1
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| 289 | f2d.SetParLimits(4, 0, func.GetParameter(2)*5); // sigma_2
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| 290 | f2d.SetParLimits(5, 0, 45); // phi
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| 291 | f2d.SetParLimits(6, 0, func.GetParameter(3)*5);
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| 292 | f2d.SetParLimits(7, 0, func.GetParameter(4)*5);
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| 293 |
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| 294 | f2d.SetParameter(0, h1->GetMaximum()); // A
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| 295 | f2d.SetParameter(1, h1->GetXaxis()->GetBinCenter(ix)); // mu_1
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| 296 | f2d.SetParameter(2, func.GetParameter(2)); // sigma_1
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| 297 | f2d.SetParameter(3, h1->GetYaxis()->GetBinCenter(iy)); // mu_2
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| 298 | f2d.SetParameter(4, func.GetParameter(2)); // sigma_2
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| 299 | f2d.FixParameter(5, 0); // phi
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| 300 | f2d.SetParameter(6, func.GetParameter(3));
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| 301 | f2d.SetParameter(7, func.GetParameter(4));
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| 302 | h1->Fit(&f2d, "Q", "cont2");
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| 303 | //f2d.DrawCopy("cont2same");
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| 304 | }*/
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| 305 | }
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| 306 |
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| 307 | void MHDisp::Draw(Option_t *o)
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| 308 | {
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| 309 | TVirtualPad *pad = gPad ? gPad : MakeDefCanvas(this);
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| 310 | const Int_t col = pad->GetFillColor();
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| 311 | pad->SetBorderMode(0);
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| 312 |
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| 313 | AppendPad("");
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| 314 |
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| 315 | TString name = Form("%s_1", pad->GetName());
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| 316 | TPad *p = new TPad(name,name, 0.005, 0.005, 0.65, 0.995, col, 0, 0);
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| 317 | p->SetNumber(1);
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| 318 | p->Draw();
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| 319 | p->cd();
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| 320 |
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| 321 | TH1 *h3 = fHist.Project3D("yx_on");
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| 322 | h3->SetTitle("Distribution of equivalent events");
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| 323 | h3->SetDirectory(NULL);
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| 324 | h3->SetXTitle(fHist.GetXaxis()->GetTitle());
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| 325 | h3->SetYTitle(fHist.GetYaxis()->GetTitle());
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| 326 | h3->SetMinimum(0);
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| 327 | h3->Draw("colz");
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| 328 | h3->SetBit(kCanDelete);
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| 329 | // catalog->Draw("mirror same *");
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| 330 |
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| 331 | pad->cd();
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| 332 | name = Form("%s_2", pad->GetName());
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| 333 | p = new TPad(name,name, 0.66, 0.005, 0.995, 0.5, col, 0, 0);
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| 334 | p->SetNumber(2);
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| 335 | p->Draw();
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| 336 | p->cd();
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| 337 | h3->Draw("surf3");
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| 338 |
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| 339 | pad->cd();
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| 340 | name = Form("%s_3", pad->GetName());
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| 341 | p = new TPad(name,name, 0.66, 0.5, 0.995, 0.995, col, 0, 0);
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| 342 | p->SetNumber(3);
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| 343 | p->Draw();
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| 344 | p->cd();
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| 345 |
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| 346 | const Double_t maxr = TMath::Hypot(h3->GetXaxis()->GetXmax(), h3->GetYaxis()->GetXmax());
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| 347 | const Int_t nbin = (h3->GetNbinsX()+h3->GetNbinsY())/2;
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| 348 | TProfile *h = new TProfile("Radial", "Radial Profile", nbin, 0, maxr, "s");
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| 349 | h->SetBit(kCanDelete);
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| 350 | h->Draw();
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| 351 | }
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