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source: trunk/Mars/mhbase/MH3.cc@ 13782

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Last change on this file since 13782 was 12793, checked in by tbretz, 13 years ago
To make sure that the IsNull check in drawing with labels works, stray whitespaces are removed first from the option string
File size: 41.7 KB

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1	/* ======================================================================== *\
2	!
3	! *
4	! * This file is part of MARS, the MAGIC Analysis and Reconstruction
5	! * Software. It is distributed to you in the hope that it can be a useful
6	! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
7	! * It is distributed WITHOUT ANY WARRANTY.
8	! *
9	! * Permission to use, copy, modify and distribute this software and its
10	! * documentation for any purpose is hereby granted without fee,
11	! * provided that the above copyright notice appear in all copies and
12	! * that both that copyright notice and this permission notice appear
13	! * in supporting documentation. It is provided "as is" without express
14	! * or implied warranty.
15	! *
16	!
17	!
18	! Author(s): Thomas Bretz 2002 <mailto:tbretz@astro.uni-wuerzburg.de>
19	!
20	! Copyright: MAGIC Software Development, 2000-2010
21	!
22	!
23	\* ======================================================================== */
24
25	/////////////////////////////////////////////////////////////////////////////
26	//
27	// MH3
28	//
29	// With this histogram you can fill a histogram with up to three
30	// variables from Mars parameter containers in an eventloop.
31	//
32	// In the constructor you can give up to three variables which should be
33	// filled in the histogram. Dependend on the number of given variables
34	// (data members) a TH1D, TH2D or TH3D is created.
35	// Specify the data mamber like the following:
36	// "MHillas.fLength"
37	// Where MHillas is the name of the parameter container in the parameter
38	// list and fLength is the name of the data member which should be filled
39	// in the histogram. Assuming that your MHillas container has a different
40	// name (MyHillas) the name to give would be:
41	// "MyHillas.fLength"
42	//
43	// If you want to use a different unit for histogramming use SetScaleX,
44	// SetScaleY and SetScaleZ.
45	//
46	//
47	// Binning/Binning name
48	// =====================
49	//
50	// The axis binning is retrieved from the parameter list, too. Create a
51	// MBinning with the name "Binning" plus the name of your MH3 container
52	// plus the axis name ("X", "Y" or "Z") and add it to the parameter list.
53	//
54	// If the binning should have a different name than the histogram name
55	// the binning name can be added to the name, eg.:
56	// SetName("MyHistName;MyXBins;MyYBins")
57	// Instead of BinningMyHistName[XYZ] the parameter list will be searched
58	// for BinningMyXBinning, BinningMyYBins and BinningMyHistNameZ
59	//
60	// If you don't want to use a MBinning object from the parameter list
61	// you can also set one directly, for example
62	// MBinning bins(10, 0, 1);
63	// mh3.SetBinningX(&bins);
64	// You must not delete the MBinning object before the class has been
65	// PreProcessed.
66	//
67	//
68	// Axis titles
69	// ===========
70	//
71	// 1) If no other title is given the rule for this axis is used.
72	// 2) If the MBinning used for this axis has a non-default Title
73	// (MBinning::HasTitle) this title is used for the corresponding axis
74	// 3) If the MH3 has a non-default title (MH3::SetTitle called)
75	// this title is set as the histogram title. It can be used to overwrite
76	// the axis titles. For more information see TH1::SetTitle, eg.
77	// SetTitle("MyHist;x[mm];y[cm];Counts");
78	//
79	//
80	// Labels
81	// ======
82	//
83	// To use labels at an axis you have to initialize this for the axis
84	// by either calling InitLabels(Labels_t) or setiting a DefaultLabel.
85	// For the axis for which the labels have been initialized the
86	// number returned by the given corresponding phrase is converted
87	// to int with TMath::Nint and used as a label. If you want to replace
88	// this id by a named label you can call DefineLabel to do that.
89	// Several ids can be replaced by the same label. If you define
90	// named labels for every label which was not defined the default
91	// is used, if any, otherwise an unnamed label is created.
92	//
93	// In the case of an axis with labels the axis-title cannot be
94	// set via a MBinning, because the MBinning is not evaluated.
95	//
96	// Please note that for some reason not all combinations of
97	// labels, dimensions and weights are available in the root-
98	// histogram classes. Please check the MH3::Fill function to see
99	// whether your combination is supported.
100	//
101	//
102	// Examples:
103	// =========
104	//
105	// 1) MH3 myhist("MHillas.fLength");
106	// myhist.SetName("MyHist");
107	// myhist.SetScaleX(geomcam.GetConvMm2Deg()); //convert length to degree
108	// MBinning bins("BinningMyHistX", "Title for my x-axis [Hz]");
109	// bins.SetEdges(10, 0, 150);
110	// plist.AddToList(&bins);
111	//
112	// 2) MH3 myhist("MHillas.fLength");
113	// myhist.SetName("MyHist;MyX");
114	// myhist.SetTitle("Histogram Title;X-Title [mm];Counts");
115	// MBinning bins("BinningMyX");
116	// bins.SetEdges(10, 0, 150);
117	// plist.AddToList(&bins);
118	//
119	// 3) MH3 myhist("MTriggerPatter.GetUnprescaled");
120	// myhist.SetWeight("1./MRawRunHeader.GetRunLength");
121	// myhist.SetTitle("Rate of the trigger pattern [Hz];Run Number;Trigger Pattern;Rate [Hz]");
122	// myhist.InitLabels(MH3::kLabelsXY);
123	// myhist.DefaultLabelY("UNKNOWN"); // Lvl1
124	// myhist.DefineLabelY( 1, "Trig"); // Lvl1
125	// myhist.DefineLabelY( 2, "Cal"); // Cal
126	// myhist.DefineLabelY( 4, "Trig"); // Lvl2
127	// myhist.DefineLabelY( 8, "Ped"); // Ped
128	//
129	//
130	// Class Version 1:
131	// ----------------
132	// - MData *fData[3];
133	// + MData *fData[4];
134	//
135	// Class Version 2:
136	// ----------------
137	// - MDataChain *fData[3]; // Object from which the data is filled
138	// + MData *fData[3]; // Object from which the data is filled
139	//
140	// Class Version 3:
141	// ----------------
142	// - Byte_t fStyleBits
143	// + MBinning fBins[3]
144	//
145	// Class Version 5:
146	// ----------------
147	// + TFormula *fConversion
148	//
149	// Class Version 6:
150	// ----------------
151	// + MData *fWeight;
152	//
153	// Class Version 7:
154	// ----------------
155	// + MData *fData[4]
156	// + Double_t fScale[4]
157	// - MData *fData[3]
158	// - Double_t fScale[3]
159	//
160	/////////////////////////////////////////////////////////////////////////////
161	#include "MH3.h"
162
163	#include <ctype.h> // tolower
164	#include <stdlib.h> // atoi (Ubuntu 8.10)
165	#include <fstream>
166
167	#include <TMath.h>
168	#include <TFormula.h>
169
170	#include <THashList.h>
171	#include <TObjString.h>
172
173	//#include <TPad.h>
174	#include <TStyle.h>
175	#include <TCanvas.h>
176
177	#include <TH2.h>
178	#include <TH3.h>
179	#include <TProfile.h>
180	#include <TProfile2D.h>
181	#include <TProfile3D.h>
182
183	#include "MLog.h"
184	#include "MLogManip.h"
185
186	#include "MString.h"
187
188	#include "MParList.h"
189	#include "MBinning.h"
190	#include "MDataPhrase.h"
191
192	ClassImp(MH3);
193
194	using namespace std;
195
196	const TString MH3::gsDefName = "MH3";
197	const TString MH3::gsDefTitle = "Container for a n-D Mars Histogram";
198
199	// --------------------------------------------------------------------------
200	//
201	// Set fStyleBits to 0, Reset fBins to NULL, fScale to 1, set name and title
202	// to gsDefName and gsDefTitle and if fHist!=NULL UseCurrentStyle and
203	// SetDirectory(0)
204	//
205	void MH3::Init()
206	{
207	fStyleBits = 0;
208
209	fWeight = NULL;
210
211	fData[0] = NULL;
212	fData[1] = NULL;
213	fData[2] = NULL;
214	fData[3] = NULL;
215
216	fBins[0] = NULL;
217	fBins[1] = NULL;
218	fBins[2] = NULL;
219
220	fScale[0] = 1;
221	fScale[1] = 1;
222	fScale[2] = 1;
223	fScale[3] = 1;
224
225	fConversion = NULL;
226
227	fName = gsDefName;
228	fTitle = gsDefTitle;
229
230	if (!fHist)
231	return;
232
233	fHist->UseCurrentStyle();
234	fHist->SetDirectory(NULL);
235	}
236
237	// --------------------------------------------------------------------------
238	//
239	// Default constructor.
240	//
241	MH3::MH3(const Int_t dim, Type_t type) : fDimension(dim), fHist(NULL)
242	{
243	// FIXME?
244	switch (type)
245	{
246	case kHistogram:
247	if (fDimension>3)
248	fDimension=3;
249	break;
250	case kProfile:
251	case kProfileSpread:
252	fDimension = -TMath::Abs(fDimension);
253	if (fDimension<-2)
254	fDimension = -2;
255	break;
256	}
257
258	switch (fDimension)
259	{
260	case 1:
261	fHist = new TH1D;
262	fHist->SetYTitle("Counts");
263	break;
264	case -1:
265	fHist = new TProfile;
266	fHist->SetYTitle("Average");
267	if (type==kProfileSpread)
268	static_cast<TProfile*>(fHist)->SetErrorOption("s");
269	break;
270	case 2:
271	fHist = new TH2D;
272	fHist->SetZTitle("Counts");
273	break;
274	case -2:
275	fHist = new TProfile2D;
276	fHist->SetZTitle("Average");
277	static_cast<TProfile2D*>(fHist)->BuildOptions(0, 0, type==kProfileSpread?"s":"");
278	break;
279	case 3:
280	fHist = new TH3D;
281	break;
282	case -3:
283	fHist = new TProfile2D;
284	fHist->SetZTitle("Average");
285	static_cast<TProfile2D*>(fHist)->BuildOptions(0, 0, type==kProfileSpread?"s":"");
286	break;
287	}
288
289	Init();
290	}
291
292	// --------------------------------------------------------------------------
293	//
294	// Creates an TH1D. memberx is filled into the X-bins. For a more detailed
295	// description see the class description above.
296	//
297	MH3::MH3(const char *memberx, Type_t type) : fDimension(1)
298	{
299	fHist = new TH1D;
300	fHist->SetYTitle("Counts");
301
302	Init();
303
304	fData[0] = new MDataPhrase(memberx);
305	}
306
307	// --------------------------------------------------------------------------
308	//
309	// Adapt a given histogram
310	//
311	MH3::MH3(const TH1 &h1) : fDimension(1)
312	{
313	if (h1.InheritsFrom(TH3::Class()))
314	fDimension = 3;
315	if (h1.InheritsFrom(TH2::Class()))
316	fDimension = 2;
317
318	if (h1.InheritsFrom(TProfile3D::Class()))
319	{
320	fDimension = -3;
321	*fLog << warn << "WARNING - MH3::MH3(TH1&) does not support TProfile3D." << endl;
322	}
323	if (h1.InheritsFrom(TProfile2D::Class()))
324	fDimension = -2;
325	if (h1.InheritsFrom(TProfile::Class()))
326	fDimension = -1;
327
328	fHist = (TH1*)h1.Clone();
329
330	Init(); // Before without SeUseCurrentStyle!
331
332	switch (fDimension)
333	{
334	case 3:
335	case -2:
336	fData[2] = new MDataPhrase(h1.GetZaxis()->GetTitle());
337	case 2:
338	case -1:
339	fData[1] = new MDataPhrase(h1.GetYaxis()->GetTitle());
340	case 1:
341	fData[0] = new MDataPhrase(h1.GetXaxis()->GetTitle());
342	}
343	}
344
345	// --------------------------------------------------------------------------
346	//
347	// Creates an TH2D. memberx is filled into the X-bins. membery is filled
348	// into the Y-bins. For a more detailed description see the class
349	// description above.
350	//
351	MH3::MH3(const char memberx, const char membery, Type_t type)
352	: fDimension(type==kHistogram?2:-1)
353	{
354
355	switch (fDimension)
356	{
357	case 2:
358	fHist = static_cast<TH1*>(new TH2D);
359	break;
360	case -1:
361	fHist = static_cast<TH1*>(new TProfile);
362	if (type==kProfileSpread)
363	static_cast<TProfile*>(fHist)->SetErrorOption("s");
364
365	break;
366	}
367
368	fHist->SetZTitle(fDimension>0?"Counts":"Average");
369
370	Init();
371
372	fData[0] = new MDataPhrase(memberx);
373	fData[1] = new MDataPhrase(membery);
374	}
375
376	// --------------------------------------------------------------------------
377	//
378	// Creates an TH3D. memberx is filled into the X-bins. membery is filled
379	// into the Y-bins. membery is filled into the Z-bins. For a more detailed
380	// description see the class description above.
381	//
382	MH3::MH3(const char memberx, const char membery, const char *memberz, Type_t type)
383	: fDimension(type==kHistogram?3:-2)
384	{
385	switch (fDimension)
386	{
387	case 3:
388	fHist = static_cast<TH1*>(new TH3D);
389	break;
390	case -2:
391	fHist = static_cast<TH1*>(new TProfile2D);
392	static_cast<TProfile2D*>(fHist)->BuildOptions(0, 0, type==kProfileSpread?"s":"");
393	}
394
395	Init();
396
397	fData[0] = new MDataPhrase(memberx);
398	fData[1] = new MDataPhrase(membery);
399	fData[2] = new MDataPhrase(memberz);
400	}
401
402	// --------------------------------------------------------------------------
403	//
404	// Creates an TH3D. memberx is filled into the X-bins. membery is filled
405	// into the Y-bins. membery is filled into the Z-bins. Weight is used as a
406	// weight for the profile histogram. For a more detailed description see the
407	// class description above.
408	//
409	MH3::MH3(const char memberx, const char membery, const char memberz, const char weight, Type_t type)
410	: fDimension(-3)
411	{
412	fHist = static_cast<TH1*>(new TProfile3D);
413	static_cast<TProfile3D*>(fHist)->BuildOptions(0, 0, type==kProfileSpread?"s":"");
414
415	Init();
416
417	fData[0] = new MDataPhrase(memberx);
418	fData[1] = new MDataPhrase(membery);
419	fData[2] = new MDataPhrase(memberz);
420	fData[3] = new MDataPhrase(weight);
421	}
422
423	// --------------------------------------------------------------------------
424	//
425	// Deletes the histogram
426	//
427	MH3::~MH3()
428	{
429	if (fHist)
430	delete fHist;
431
432	if (fConversion)
433	delete fConversion;
434
435	if (fWeight)
436	delete fWeight;
437
438	for (int i=0; i<4; i++)
439	if (fData[i])
440	delete fData[i];
441
442	for (int i=0; i<3; i++)
443	if (fLabels[i].GetDefault())
444	delete fLabels[i].GetDefault();
445	}
446
447	// --------------------------------------------------------------------------
448	//
449	// You can set a weight as a phrase additionally to the one given
450	// as an argument to Fill (most likely from MFillH). The two weights
451	// are multiplied together.
452	//
453	void MH3::SetWeight(const char *phrase)
454	{
455	if (fWeight)
456	delete fWeight;
457	fWeight = new MDataPhrase(phrase);
458	}
459
460	// --------------------------------------------------------------------------
461	//
462	// Set a function which is applied to the histogram before it is displayed.
463	// Note, that it only effects the displayed histogram.
464	//
465	// e.g. SetConversion("sqrt(x)");
466	//
467	Bool_t MH3::SetConversion(const char *func)
468	{
469	if (TString(func).IsNull())
470	{
471	delete fConversion;
472	fConversion = 0;
473	return kTRUE;
474	}
475
476	fConversion = new TFormula;
477
478	// Must have a name otherwise all axis labels disappear like a miracle
479	fConversion->SetName("ConversionFunction");
480	if (fConversion->Compile(func))
481	{
482	*fLog << err << dbginf << "Syntax Error: TFormula::Compile failed for " << func << endl;
483	delete fConversion;
484	fConversion = 0;
485	return kFALSE;
486	}
487
488	gROOT->GetListOfFunctions()->Remove(fConversion);
489
490	return kTRUE;
491	}
492
493	// --------------------------------------------------------------------------
494	//
495	// The axis label is centered and the labeling of the axis is initialized.
496	//
497	// This function must not be called after any label has been created!
498	//
499	void MH3::InitLabels(TAxis &x) const
500	{
501	x.CenterTitle();
502	x.SetBinLabel(1, "");
503	x.LabelsOption("h"); // FIXME: Is "a" thread safe? (Paint and Fill?)
504	x.GetLabels()->Delete();
505	}
506
507	// --------------------------------------------------------------------------
508	//
509	// Depending on the bits set the InitLabels(TAxis&) function for
510	// the corresponding axes are called. In any case the kCanRebin bit
511	// is set.
512	//
513	// This function must not be called after any label has been created!
514	//
515	void MH3::InitLabels(Labels_t type) const
516	{
517	if (!fHist)
518	return;
519
520	if (type&kLabelsX && fHist->GetXaxis())
521	InitLabels(*fHist->GetXaxis());
522
523	if (type&kLabelsY && fHist->GetYaxis())
524	InitLabels(*fHist->GetYaxis());
525
526	if (type&kLabelsZ && fHist->GetZaxis())
527	InitLabels(*fHist->GetZaxis());
528
529	if (type&kLabelsXYZ)
530	fHist->SetBit(TH1::kCanRebin);
531	}
532
533	// --------------------------------------------------------------------------
534	//
535	// Return the corresponding Labels_t describing for which axis
536	// axis-labels are switched on.
537	//
538	MH3::Labels_t MH3::GetLabels() const
539	{
540	UInt_t type = kNoLabels;
541	if (fHist->GetXaxis() && fHist->GetXaxis()->GetLabels())
542	type \|= kLabelsX;
543	if (fHist->GetYaxis() && fHist->GetYaxis()->GetLabels())
544	type \|= kLabelsY;
545	if (fHist->GetZaxis() && fHist->GetZaxis()->GetLabels())
546	type \|= kLabelsZ;
547	return (Labels_t)type;
548	}
549
550	// --------------------------------------------------------------------------
551	//
552	// Calls the LabelsDeflate from the histogram for all axes.
553	// LabelsDeflate will just do nothing if the axis has no labels
554	// initialized.
555	//
556	void MH3::DeflateLabels() const
557	{
558	fHist->LabelsDeflate("X");
559	fHist->LabelsDeflate("Y");
560	fHist->LabelsDeflate("Z");
561	}
562
563	// --------------------------------------------------------------------------
564	//
565	// Returns the named label corresponding to the given value
566	// and the given axis. The names are defined with the
567	// DefineLabel-functions. if no name is defined the value
568	// is converted to a string with %d and TMath::Nint.
569	// If names are defined, but not for the given value, the default
570	// label is returned instead. If no default is defined the
571	// %d-converted string is returned.
572	//
573	const char *MH3::GetLabel(Int_t axe, Double_t val) const
574	{
575	const Int_t v = TMath::Nint(val);
576
577	if (fLabels[axe].GetSize())
578	{
579	const char *l = fLabels[axe].GetObjName(v);
580	if (l)
581	return l;
582	}
583
584	return Form("%d", v);
585	}
586
587	// --------------------------------------------------------------------------
588	//
589	// Return the data members used by the data chain to be used in
590	// MTask::AddBranchToList
591	//
592	TString MH3::GetDataMember() const
593	{
594	TString str=fData[0]->GetDataMember();
595
596	for (int i=1; i<4; i++)
597	if (fData[i])
598	{
599	str += ";";
600	str += fData[i]->GetDataMember();
601	}
602
603	return str;
604	}
605
606	// --------------------------------------------------------------------------
607	//
608	// Setup the Binning for the histograms automatically if the correct
609	// instances of MBinning are found in the parameter list
610	// For a more detailed description see class description above.
611	//
612	Bool_t MH3::SetupFill(const MParList *plist)
613	{
614	// reset histogram (necessary if the same eventloop is run more than once)
615	if (!TestBit(kDoNotReset))
616	fHist->Reset();
617
618	// Tokenize name into name and binnings names
619	TObjArray *tok = fName.Tokenize(";");
620
621	const TString name = (tok)[0] ? (tok)[0]->GetName() : fName.Data();
622
623	TString bx = (tok)[1] ? (tok)[1]->GetName() : Form("%sX", name.Data());
624	TString by = (tok)[2] ? (tok)[2]->GetName() : Form("%sY", name.Data());
625	TString bz = (tok)[3] ? (tok)[3]->GetName() : Form("%sZ", name.Data());
626
627	bx.Prepend("Binning");
628	by.Prepend("Binning");
629	bz.Prepend("Binning");
630
631	delete tok;
632
633	MBinning *binsx = NULL;
634	MBinning *binsy = NULL;
635	MBinning *binsz = NULL;
636
637	const Labels_t labels = GetLabels();
638
639	switch (TMath::Abs(fDimension))
640	{
641	case 3:
642	if (fData[2])
643	fHist->SetZTitle(fData[2]->GetTitle());
644	if (!(labels&kLabelsZ))
645	{
646	binsz = fBins[2] ? fBins[2] : (MBinning*)plist->FindObject(bz, "MBinning");
647	if (!binsz)
648	{
649	*fLog << err << dbginf << "MBinning '" << bz << "' not found... aborting." << endl;
650	return kFALSE;
651	}
652	if (binsz->HasTitle())
653	fHist->SetZTitle(binsz->GetTitle());
654	if (binsz->IsLogarithmic())
655	fHist->SetBit(kIsLogz);
656	}
657	case 2:
658	if (fData[1])
659	fHist->SetYTitle(fData[1]->GetTitle());
660	if (!(labels&kLabelsY))
661	{
662	binsy = fBins[1] ? fBins[1] : (MBinning*)plist->FindObject(by, "MBinning");
663	if (!binsy)
664	{
665	*fLog << err << dbginf << "MBinning '" << by << "' not found... aborting." << endl;
666	return kFALSE;
667	}
668	if (binsy->HasTitle())
669	fHist->SetYTitle(binsy->GetTitle());
670	if (binsy->IsLogarithmic())
671	fHist->SetBit(kIsLogy);
672	}
673	case 1:
674	if (fData[0]!=NULL)
675	fHist->SetXTitle(fData[0]->GetTitle());
676	if (!(labels&kLabelsX))
677	{
678	binsx = fBins[0] ? fBins[0] : (MBinning*)plist->FindObject(bx, "MBinning");
679	if (!binsx)
680	{
681	if (fDimension==1)
682	binsx = (MBinning*)plist->FindObject("Binning"+fName, "MBinning");
683
684	if (!binsx)
685	{
686	*fLog << err << dbginf << "Neither '" << bx << "' nor 'Binning" << fName << "' found... aborting." << endl;
687	return kFALSE;
688	}
689	}
690	if (binsx->HasTitle())
691	fHist->SetXTitle(binsx->GetTitle());
692	if (binsx->IsLogarithmic())
693	fHist->SetBit(kIsLogx);
694	}
695	}
696
697	// PreProcess existing fData members
698	for (int i=0; i<4; i++)
699	if (fData[i] && !fData[i]->PreProcess(plist))
700	return kFALSE;
701
702	if (fWeight && !fWeight->PreProcess(plist))
703	return kFALSE;
704
705	TString title(fDimension>0?"Histogram":"Profile");
706	title += " for ";
707	title += name;
708	title += Form(" (%dD)", TMath::Abs(fDimension));
709
710	fHist->SetName(name);
711	fHist->SetTitle(fTitle==gsDefTitle ? title : fTitle);
712	fHist->SetDirectory(0);
713
714	// This is for the case we have set lables
715	const MBinning def(1, 0, 1);
716	if (!binsx)
717	binsx = const_cast<MBinning*>(&def);
718	if (!binsy)
719	binsy = const_cast<MBinning*>(&def);
720	if (!binsz)
721	binsz = const_cast<MBinning*>(&def);
722
723	// set binning
724	switch (TMath::Abs(fDimension))
725	{
726	case 1:
727	SetBinning(fHist, binsx);
728	return kTRUE;
729	case 2:
730	SetBinning(static_cast<TH2&>(fHist), binsx, *binsy);
731	return kTRUE;
732	case 3:
733	SetBinning(static_cast<TH3&>(fHist), binsx, binsy, binsz);
734	return kTRUE;
735	}
736
737	*fLog << err << "ERROR - MH3 has " << TMath::Abs(fDimension) << " dimensions!" << endl;
738	return kFALSE;
739	}
740
741	// --------------------------------------------------------------------------
742	//
743	// Set the name of the histogram ant the MH3 container
744	//
745	void MH3::SetName(const char *name)
746	{
747	if (fHist)
748	{
749	if (gPad)
750	{
751	const TString pfx(MString::Format("%sProfX", fHist->GetName()));
752	const TString pfy(MString::Format("%sProfY", fHist->GetName()));
753
754	TProfile *p = 0;
755	if ((p=dynamic_cast<TProfile*>(gPad->FindObject(pfx))))
756	p->SetName(MString::Format("%sProfX", name));
757	if ((p=dynamic_cast<TProfile*>(gPad->FindObject(pfy))))
758	p->SetName(MString::Format("%sProfY", name));
759	}
760
761	fHist->SetName(name);
762	fHist->SetDirectory(0);
763
764	}
765	MParContainer::SetName(name);
766	}
767
768	// --------------------------------------------------------------------------
769	//
770	// Set the title of the histogram ant the MH3 container
771	//
772	void MH3::SetTitle(const char *title)
773	{
774	if (fHist)
775	fHist->SetTitle(title);
776	MParContainer::SetTitle(title);
777	}
778
779	// --------------------------------------------------------------------------
780	//
781	// Fills the one, two or three data members into our histogram
782	//
783	Int_t MH3::Fill(const MParContainer *par, const Stat_t ww)
784	{
785	// Get Information about labels (UInt_t, to supress warning about
786	// unhandeled cases in switch)
787	const UInt_t type = GetLabels();
788
789	// Get values for axis
790	Double_t x=0;
791	Double_t y=0;
792	Double_t z=0;
793	Double_t t=0;
794	Double_t w=ww;
795
796	switch (fDimension)
797	{
798	case -3:
799	t = fData[3]->GetValue()*fScale[3];
800	case -2:
801	case 3:
802	z = fData[2]->GetValue()*fScale[2];
803	case -1:
804	case 2:
805	y = fData[1]->GetValue()*fScale[1];
806	case 1:
807	x = fData[0]->GetValue()*fScale[0];
808	}
809
810	if (fWeight)
811	w *= fWeight->GetValue();
812
813	// If label option is set, convert value to label
814	TString labelx, labely, labelz;
815	if (type&kLabelsX)
816	labelx = GetLabel(0, x);
817	if (type&kLabelsY)
818	labely = GetLabel(1, y);
819	if (type&kLabelsZ)
820	labelz = GetLabel(2, z);
821
822	// Fill histogram
823	switch (fDimension)
824	{
825	case 3:
826	switch (type)
827	{
828	case kNoLabels:
829	static_cast<TH3*>(fHist)->Fill(x, y, z, w);
830	return kTRUE;
831	case kLabelsX:
832	static_cast<TH3*>(fHist)->Fill(labelx, y, z);
833	return kTRUE;
834	case kLabelsY:
835	static_cast<TH3*>(fHist)->Fill(x, labely, z, w);
836	return kTRUE;
837	case kLabelsZ:
838	static_cast<TH3*>(fHist)->Fill(x, y, labelz, w);
839	return kTRUE;
840	case kLabelsXY:
841	static_cast<TH3*>(fHist)->Fill(labelx, labely, z, w);
842	return kTRUE;
843	case kLabelsXZ:
844	static_cast<TH3*>(fHist)->Fill(labelx, y, labelz, w);
845	return kTRUE;
846	case kLabelsYZ:
847	static_cast<TH3*>(fHist)->Fill(x, labely, labelz, w);
848	return kTRUE;
849	case kLabelsXYZ:
850	static_cast<TH3*>(fHist)->Fill(labelx, labely, labelz, w);
851	return kTRUE;
852	}
853	break;
854	case 2:
855	switch (type)
856	{
857	case kNoLabels:
858	static_cast<TH2*>(fHist)->Fill(x, y, w);
859	return kTRUE;
860	case kLabelsX:
861	static_cast<TH2*>(fHist)->Fill(x, labely, w);
862	return kTRUE;
863	case kLabelsY:
864	static_cast<TH2*>(fHist)->Fill(labelx, y, w);
865	return kTRUE;
866	case kLabelsXY:
867	static_cast<TH2*>(fHist)->Fill(labelx, labely, w);
868	return kTRUE;
869	}
870	break;
871	case 1:
872	switch (type)
873	{
874	case kNoLabels:
875	fHist->Fill(x, w);
876	return kTRUE;
877	case kLabelsX:
878	fHist->Fill(labelx, w);
879	return kTRUE;
880	}
881	break;
882	case -1:
883	switch (type)
884	{
885	case kNoLabels:
886	static_cast<TProfile*>(fHist)->Fill(x, y, w);
887	return kTRUE;
888	case kLabelsX:
889	static_cast<TProfile*>(fHist)->Fill(labelx, y, w);
890	return kTRUE;
891	}
892	break;
893	case -2:
894	switch (type)
895	{
896	case kNoLabels:
897	static_cast<TProfile2D*>(fHist)->Fill(x, y, z, w);
898	return kTRUE;
899	case kLabelsX:
900	static_cast<TProfile2D*>(fHist)->Fill(labelx, y, z);
901	return kTRUE;
902	case kLabelsY:
903	static_cast<TProfile2D*>(fHist)->Fill(x, labely, z);
904	return kTRUE;
905	case kLabelsXY:
906	static_cast<TProfile2D*>(fHist)->Fill(labelx, labely, z);
907	return kTRUE;
908	}
909	break;
910	case -3:
911	switch (type)
912	{
913	case kNoLabels:
914	static_cast<TProfile3D*>(fHist)->Fill(x, y, z, t, w);
915	return kTRUE;
916	default:
917	*fLog << err << "ERROR - Labels not supported in TProfile3D." << endl;
918	}
919	break;
920	}
921
922	*fLog << err << "MH3::Fill: ERROR - A fatal error occured." << endl;
923	return kERROR;
924	}
925
926	// --------------------------------------------------------------------------
927	//
928	// If an auto range bit is set the histogram range of the corresponding
929	// axis is set to show only the non-empty bins (with a single empty bin
930	// on both sides)
931	//
932	Bool_t MH3::Finalize()
933	{
934	DeflateLabels();
935
936	Bool_t autorangex=TESTBIT(fStyleBits, 0);
937	Bool_t autorangey=TESTBIT(fStyleBits, 1);
938	//Bool_t autorangez=TESTBIT(fStyleBits, 2);
939
940	Int_t lo, hi;
941	if (autorangex)
942	{
943	GetRangeX(*fHist, lo, hi);
944	fHist->GetXaxis()->SetRange(lo-2, hi+1);
945	}
946	if (autorangey)
947	{
948	GetRangeY(*fHist, lo, hi);
949	fHist->GetYaxis()->SetRange(lo-2, hi+1);
950	}
951	/*
952	if (autorangez)
953	{
954	GetRangeZ(*fHist, lo, hi);
955	fHist->GetZaxis()->SetRange(lo-2, hi+1);
956	}
957	*/
958	return kTRUE;
959	}
960
961	// --------------------------------------------------------------------------
962	//
963	// Apply the conversion function to the contents stored in fHist and
964	// store the result in h.
965	//
966	// In the case of a TProfile we keep it a TProfile to keep the mean and
967	// rms in y displayed. To get the error correctly we have to reverse
968	// the calculation done in TProfile::GetBinError of course.
969	//
970	void MH3::Convert(TH1 &h) const
971	{
972	const Bool_t prof = h.InheritsFrom(TProfile::Class()) \|\| h.InheritsFrom(TProfile2D::Class()) \|\| h.InheritsFrom(TProfile3D::Class());
973
974	for (Int_t z=0; z<=h.GetNbinsZ()+1; z++)
975	for (Int_t y=0; y<=h.GetNbinsY()+1; y++)
976	for (Int_t x=0; x<=h.GetNbinsX()+1; x++)
977	{
978	h.SetBinContent(x, y, z, fConversion->Eval(fHist->GetBinContent(x, y, z)));
979
980	if (prof)
981	h.SetBinError(x, y, z, TMath::Hypot(fConversion->Eval(fHist->GetBinContent(x, y, z)),
982	fConversion->Eval(fHist->GetBinError( x, y, z))));
983	else
984	h.SetBinError(x, y, z, fConversion->Eval(fHist->GetBinError(x, y, z)));
985	}
986
987	TProfile p1 = dynamic_cast<TProfile>(fHist);
988	if (p1)
989	for (Int_t i=0; i<p1->GetSize(); i++)
990	static_cast<TProfile&>(h).SetBinEntries(i, p1->GetBinEntries(i)>0 ? 1 : 0);
991
992	TProfile2D p2 = dynamic_cast<TProfile2D>(fHist);
993	if (p2)
994	for (Int_t i=0; i<p2->GetSize(); i++)
995	static_cast<TProfile2D&>(h).SetBinEntries(i, p2->GetBinEntries(i)>0 ? 1 : 0);
996
997	TProfile3D p3 = dynamic_cast<TProfile3D>(fHist);
998	if (p3)
999	for (Int_t i=0; i<p3->GetSize(); i++)
1000	static_cast<TProfile3D&>(h).SetBinEntries(i, p3->GetBinEntries(i)>0 ? 1 : 0);
1001	}
1002
1003	// --------------------------------------------------------------------------
1004	//
1005	// FIXME
1006	//
1007	void MH3::Paint(Option_t *o)
1008	{
1009	TProfile *p=0;
1010
1011	if (TMath::Abs(fDimension)==2)
1012	MH::SetPalette("pretty");
1013
1014	if (fConversion)
1015	{
1016	TH1 *h = 0;
1017	if ((h=dynamic_cast<TH1*>(gPad->FindObject(fHist->GetName()))))
1018	Convert(*h);
1019	}
1020
1021	const TString pfx(MString::Format("%sProfX", fHist->GetName()));
1022	if ((p=dynamic_cast<TProfile*>(gPad->FindObject(pfx))))
1023	{
1024	Int_t col = p->GetLineColor();
1025	p = ((TH2*)fHist)->ProfileX(pfx, -1, -1, "s");
1026	p->SetLineColor(col);
1027	}
1028
1029	const TString pfy(MString::Format("%sProfY", fHist->GetName()));
1030	if ((p=dynamic_cast<TProfile*>(gPad->FindObject(pfy))))
1031	{
1032	Int_t col = p->GetLineColor();
1033	p = ((TH2*)fHist)->ProfileY(pfy, -1, -1, "s");
1034	p->SetLineColor(col);
1035	}
1036	/*
1037	if (fHist->TestBit(kIsLogx) && fHist->GetEntries()>0) gPad->SetLogx();
1038	if (fHist->TestBit(kIsLogy) && fHist->GetEntries()>0) gPad->SetLogy();
1039	if (fHist->TestBit(kIsLogz) && fHist->GetEntries()>0) gPad->SetLogz();
1040	*/
1041	}
1042
1043	// --------------------------------------------------------------------------
1044	//
1045	// If Xmax is < 3000*Xmin SetMoreLogLabels is called. If Xmax<5000
1046	// the exponent is switched off (SetNoExponent)
1047	//
1048	void MH3::HandleLogAxis(TAxis &axe) const
1049	{
1050	if (axe.GetXmax()>3000*axe.GetXmin())
1051	return;
1052
1053	axe.SetMoreLogLabels();
1054	if (axe.GetXmax()<5000)
1055	axe.SetNoExponent();
1056	}
1057
1058	// --------------------------------------------------------------------------
1059	//
1060	// Creates a new canvas and draws the histogram into it.
1061	//
1062	// Possible options are:
1063	// PROFX: Draw a x-profile into the histogram (for 2D histograms only)
1064	// PROFY: Draw a y-profile into the histogram (for 2D histograms only)
1065	// ONLY: Draw the profile histogram only (for 2D histograms only)
1066	// BLUE: Draw the profile in blue color instead of the histograms
1067	// line color
1068	//
1069	// If the kIsLog?-Bit is set the axis is displayed lkogarithmically.
1070	// eg this is set when applying a logarithmic MBinning
1071	//
1072	// Be careful: The histogram belongs to this object and won't get deleted
1073	// together with the canvas.
1074	//
1075	void MH3::Draw(Option_t *opt)
1076	{
1077	TVirtualPad *pad = gPad ? gPad : MakeDefCanvas(fHist);
1078	pad->SetBorderMode(0);
1079	pad->SetGridx();
1080	pad->SetGridy();
1081
1082	if (fHist->TestBit(kIsLogx))
1083	{
1084	pad->SetLogx();
1085	HandleLogAxis(*fHist->GetXaxis());
1086	}
1087	if (fHist->TestBit(kIsLogy))
1088	{
1089	pad->SetLogy();
1090	HandleLogAxis(*fHist->GetYaxis());
1091	}
1092	if (fHist->TestBit(kIsLogz))
1093	{
1094	pad->SetLogz();
1095	HandleLogAxis(*fHist->GetZaxis());
1096	}
1097
1098	fHist->SetFillStyle(4000);
1099
1100	TString str(opt);
1101	str.ToLower();
1102	str.ReplaceAll(" ", "");
1103
1104	if (GetLabels())
1105	{
1106	if (str.IsNull() && fDimension==2)
1107	str = "colz";
1108
1109	if (str.Contains("box", TString::kIgnoreCase) && fDimension==2)
1110	fHist->SetLineColor(kBlue);
1111	}
1112
1113	const Bool_t only = str.Contains("only") && TMath::Abs(fDimension)==2;
1114	const Bool_t same = str.Contains("same") && TMath::Abs(fDimension)<3;
1115	const Bool_t blue = str.Contains("blue") && TMath::Abs(fDimension)==2;
1116	const Bool_t profx = str.Contains("profx") && TMath::Abs(fDimension)==2;
1117	const Bool_t profy = str.Contains("profy") && TMath::Abs(fDimension)==2;
1118
1119	str.ReplaceAll("only", "");
1120	str.ReplaceAll("blue", "");
1121	str.ReplaceAll("profx", "");
1122	str.ReplaceAll("profy", "");
1123
1124	if (same && TMath::Abs(fDimension)==1)
1125	{
1126	fHist->SetLineColor(kBlue);
1127	fHist->SetMarkerColor(kBlue);
1128	}
1129
1130
1131	TH1 *h = fHist;
1132
1133	if (fConversion)
1134	{
1135	h = static_cast<TH1*>(fHist->Clone());
1136
1137	h->SetDirectory(0);
1138	h->SetBit(kCanDelete);
1139
1140	Convert(*h);
1141	}
1142
1143	// FIXME: We may have to remove all our own options from str!
1144	if (!only)
1145	h->Draw(str);
1146
1147	AppendPad();
1148
1149	TProfile *p=0;
1150	if (profx)
1151	{
1152	const TString pfx(MString::Format("%sProfX", h->GetName()));
1153
1154	if (same && (p=dynamic_cast<TProfile*>(gPad->FindObject(pfx))))
1155	*fLog << warn << "TProfile " << pfx << " already in pad." << endl;
1156
1157	p = ((TH2*)h)->ProfileX(pfx, -1, -1, "s");
1158	p->UseCurrentStyle();
1159	p->SetLineColor(blue ? kBlue : h->GetLineColor());
1160	p->SetBit(kCanDelete);
1161	p->SetDirectory(NULL);
1162	p->SetXTitle(h->GetXaxis()->GetTitle());
1163	p->SetYTitle(h->GetYaxis()->GetTitle());
1164	p->Draw(only&&!same?"":"same");
1165	}
1166	if (profy)
1167	{
1168	const TString pfy(MString::Format("%sProfY", h->GetName()));
1169
1170	if (same && (p=dynamic_cast<TProfile*>(gPad->FindObject(pfy))))
1171	*fLog << warn << "TProfile " << pfy << " already in pad." << endl;
1172
1173	p = ((TH2*)h)->ProfileY(pfy, -1, -1, "s");
1174	p->UseCurrentStyle();
1175	p->SetLineColor(blue ? kBlue : h->GetLineColor());
1176	p->SetBit(kCanDelete);
1177	p->SetDirectory(NULL);
1178	p->SetYTitle(h->GetXaxis()->GetTitle());
1179	p->SetXTitle(h->GetYaxis()->GetTitle());
1180	p->Draw(only&&!same?"":"same");
1181	}
1182
1183	//AppendPad("log");
1184	}
1185
1186	// --------------------------------------------------------------------------
1187	//
1188	// Implementation of SavePrimitive. Used to write the call to a constructor
1189	// to a macro. In the original root implementation it is used to write
1190	// gui elements to a macro-file.
1191	//
1192	void MH3::StreamPrimitive(ostream &out) const
1193	{
1194	TString name = GetUniqueName();
1195
1196	out << " MH3 " << name << "(\"";
1197	out << fData[0]->GetRule() << "\"";
1198	if (fDimension>1 \|\| fDimension<0)
1199	out << ", \"" << fData[1]->GetRule() << "\"";
1200	if (fDimension>2 \|\| fDimension<-1)
1201	out << ", \"" << fData[2]->GetRule() << "\"";
1202
1203	out << ");" << endl;
1204
1205	if (fName!=gsDefName)
1206	out << " " << name << ".SetName(\"" << fName << "\");" << endl;
1207
1208	if (fTitle!=gsDefTitle)
1209	out << " " << name << ".SetTitle(\"" << fTitle << "\");" << endl;
1210
1211	if (fWeight)
1212	out << " " << name << ".SetWeight(\"" << fWeight->GetRule() << "\");" << endl;
1213
1214	switch (fDimension)
1215	{
1216	case -3:
1217	if (fScale[3]!=1)
1218	out << " " << name << ".SetScaleT(" << fScale[3] << ");" << endl;
1219	case -2:
1220	case 3:
1221	if (fScale[2]!=1)
1222	out << " " << name << ".SetScaleZ(" << fScale[2] << ");" << endl;
1223	case -1:
1224	case 2:
1225	if (fScale[1]!=1)
1226	out << " " << name << ".SetScaleY(" << fScale[1] << ");" << endl;
1227	case 1:
1228	if (fScale[0]!=1)
1229	out << " " << name << ".SetScaleX(" << fScale[0] << ");" << endl;
1230	}
1231	}
1232
1233	MH3::Type_t MH3::GetType() const
1234	{
1235	switch (fDimension)
1236	{
1237	case -1:
1238	return TString(static_cast<TProfile*>(fHist)->GetErrorOption())=="s" ? kProfileSpread : kProfile;
1239	case -2:
1240	return TString(static_cast<TProfile2D*>(fHist)->GetErrorOption())=="s" ? kProfileSpread : kProfile;
1241	case -3:
1242	return TString(static_cast<TProfile3D*>(fHist)->GetErrorOption())=="s" ? kProfileSpread : kProfile;
1243	}
1244	return kHistogram;
1245	}
1246
1247	// --------------------------------------------------------------------------
1248	//
1249	// Used to rebuild a MH3 object of the same type (data members,
1250	// dimension, ...)
1251	//
1252	MParContainer *MH3::New() const
1253	{
1254	// FIXME: TREAT THE NEW OPTIONS CORRECTLY (PROFILE, LABELS)
1255
1256	MH3 *h = NULL;
1257
1258	if (fData[0] == NULL)
1259	h=new MH3(fDimension);
1260	else
1261	switch (fDimension)
1262	{
1263	case 1:
1264	h=new MH3(fData[0]->GetRule());
1265	break;
1266	case 2:
1267	case -1:
1268	h=new MH3(fData[0]->GetRule(), fData[1]->GetRule(), GetType());
1269	break;
1270	case 3:
1271	case -2:
1272	h=new MH3(fData[0]->GetRule(), fData[1]->GetRule(), fData[2]->GetRule(), GetType());
1273	break;
1274	case -3:
1275	h=new MH3(fData[0]->GetRule(), fData[1]->GetRule(), fData[2]->GetRule(), fData[3]->GetRule());
1276	break;
1277	}
1278
1279	switch (fDimension)
1280	{
1281	case -3:
1282	h->SetScaleZ(fScale[3]);
1283	case -2:
1284	case 3:
1285	h->SetScaleZ(fScale[2]);
1286	case 2:
1287	case -1:
1288	h->SetScaleY(fScale[1]);
1289	case 1:
1290	h->SetScaleX(fScale[0]);
1291	}
1292
1293	if (fWeight)
1294	h->SetWeight(fWeight->GetRule());
1295
1296	return h;
1297	}
1298
1299	// --------------------------------------------------------------------------
1300	//
1301	// FIXME
1302	//
1303	TString MH3::GetRule(const Char_t axis) const
1304	{
1305	switch (tolower(axis))
1306	{
1307	case 'x':
1308	case 'X':
1309	return fData[0] ? fData[0]->GetRule() : TString("");
1310	case 'y':
1311	case 'Y':
1312	return fData[1] ? fData[1]->GetRule() : TString("");
1313	case 'z':
1314	case 'Z':
1315	return fData[2] ? fData[2]->GetRule() : TString("");
1316	case 't':
1317	case 'T':
1318	return fData[3] ? fData[3]->GetRule() : TString("");
1319	case 'w':
1320	case 'W':
1321	return fWeight ? fWeight->GetRule() : TString("");
1322	default:
1323	return "<n/a>";
1324	}
1325	}
1326
1327	// --------------------------------------------------------------------------
1328	//
1329	// Returns the total number of bins in a histogram (excluding under- and
1330	// overflow bins)
1331	//
1332	Int_t MH3::GetNbins() const
1333	{
1334	Int_t num = 1;
1335
1336	switch (TMath::Abs(fDimension))
1337	{
1338	case 3:
1339	num *= fHist->GetNbinsZ()+2;
1340	case 2:
1341	num *= fHist->GetNbinsY()+2;
1342	case 1:
1343	num *= fHist->GetNbinsX()+2;
1344	}
1345
1346	return num;
1347	}
1348
1349	// --------------------------------------------------------------------------
1350	//
1351	// Returns the total number of bins in a histogram (excluding under- and
1352	// overflow bins) Return -1 if bin is underflow or overflow
1353	//
1354	Int_t MH3::FindFixBin(Double_t x, Double_t y, Double_t z) const
1355	{
1356	const TAxis &axex = *fHist->GetXaxis();
1357	const TAxis &axey = *fHist->GetYaxis();
1358	const TAxis &axez = *fHist->GetZaxis();
1359
1360	Int_t binz = 0;
1361	Int_t biny = 0;
1362	Int_t binx = 0;
1363
1364	switch (fDimension)
1365	{
1366	case 3:
1367	case -2:
1368	binz = axez.FindFixBin(z);
1369	if (binz>axez.GetLast() \|\| binz<axez.GetFirst())
1370	return -1;
1371	case 2:
1372	case -1:
1373	biny = axey.FindFixBin(y);
1374	if (biny>axey.GetLast() \|\| biny<axey.GetFirst())
1375	return -1;
1376	case 1:
1377	binx = axex.FindFixBin(x);
1378	if (binx<axex.GetFirst() \|\| binx>axex.GetLast())
1379	return -1;
1380	}
1381
1382	const Int_t nx = fHist->GetNbinsX()+2;
1383	const Int_t ny = fHist->GetNbinsY()+2;
1384
1385	return binx + nx(biny +nybinz);
1386	}
1387
1388	// --------------------------------------------------------------------------
1389	//
1390	// Return the MObjLookup corresponding to the axis/character.
1391	// Note that only lower-case charecters (x, y, z) are supported.
1392	// If for the axis no labels were set, the corresponding
1393	// InitLabels is called.
1394	//
1395	MObjLookup *MH3::GetLabels(char axe)
1396	{
1397	if (!fHist)
1398	return 0;
1399
1400	TAxis *x = 0;
1401
1402	switch (axe)
1403	{
1404	case 'x':
1405	x = fHist->GetXaxis();
1406	break;
1407	case 'y':
1408	x = fHist->GetYaxis();
1409	break;
1410	case 'z':
1411	x = fHist->GetZaxis();
1412	break;
1413	}
1414
1415	if (!x)
1416	return 0;
1417
1418	const Int_t idx = axe-'x';
1419
1420	if (!x->GetLabels())
1421	switch (idx)
1422	{
1423	case 0:
1424	InitLabels(kLabelsX);
1425	break;
1426	case 1:
1427	InitLabels(kLabelsY);
1428	break;
1429	case 2:
1430	InitLabels(kLabelsZ);
1431	break;
1432	}
1433
1434	return &fLabels[idx];
1435	}
1436
1437	// --------------------------------------------------------------------------
1438	//
1439	// Set a default label which is used if no other is found in the list
1440	// of labels. if a default was set already it is overwritten. If the
1441	// axis has not yet been initialized to use labels it it now.
1442	//
1443	void MH3::DefaultLabel(char axe, const char *name)
1444	{
1445	MObjLookup *arr = GetLabels(axe);
1446	if (!arr)
1447	return;
1448
1449	if (arr->GetDefault())
1450	{
1451	delete arr->GetDefault();
1452	arr->SetDefault(0);
1453	}
1454
1455	if (name)
1456	arr->SetDefault(new TObjString(name));
1457	}
1458
1459	// --------------------------------------------------------------------------
1460	//
1461	// Define a name for a label. More than one label can have the same
1462	// name. If the axis has not yet been initialized to use labels
1463	// it it now.
1464	//
1465	void MH3::DefineLabel(char axe, Int_t label, const char *name)
1466	{
1467	MObjLookup *arr = GetLabels(axe);
1468
1469	if (!arr \|\| !name)
1470	return;
1471
1472	if (arr->GetObj(label)!=arr->GetDefault())
1473	return;
1474
1475	arr->Add(label, name);
1476	}
1477
1478	// --------------------------------------------------------------------------
1479	//
1480	// Define names for labels, like
1481	// 1=Trig;2=Cal;4=Ped;8=Lvl2
1482	// More than one label can have the same name. If the axis has not
1483	// yet been initialized to use labels it it now.
1484	//
1485	// A default cannot be set here. Use DefaultLabel instead.
1486	//
1487	void MH3::DefineLabels(char axe, const TString &labels)
1488	{
1489	TObjArray *arr = labels.Tokenize(';');
1490
1491	for (int i=0; i<arr->GetEntries(); i++)
1492	{
1493	const char s = (arr)[0]->GetName();
1494	const char *v = strchr(s, '=');
1495
1496	if (v)
1497	DefineLabel(axe, atoi(s), v+1);
1498	}
1499
1500	delete arr;
1501	}
1502
1503	void MH3::RecursiveRemove(TObject *obj)
1504	{
1505	if (obj==fHist)
1506	fHist = 0;
1507
1508	MH::RecursiveRemove(obj);
1509	}

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