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7984e5f7 | 1 | // |
2 | // Utilities used in the forward multiplcity analysis | |
3 | // | |
4 | // | |
5 | #ifndef ALIFORWARDUTIL_H | |
6 | #define ALIFORWARDUTIL_H | |
7e4038b5 | 7 | #include <TObject.h> |
9d99b0dd | 8 | #include <TString.h> |
7f759bb7 | 9 | #include <TObjArray.h> |
7e4038b5 | 10 | class TH2D; |
9d99b0dd | 11 | class TH1I; |
12 | class TH1; | |
7f759bb7 | 13 | class TF1; |
7e4038b5 | 14 | class TAxis; |
9d99b0dd | 15 | class AliESDEvent; |
7e4038b5 | 16 | |
17 | /** | |
18 | * Utilities used in the forward multiplcity analysis | |
19 | * | |
7c1a1f1d | 20 | * @ingroup pwg2_forward |
7e4038b5 | 21 | */ |
22 | class AliForwardUtil : public TObject | |
23 | { | |
9d99b0dd | 24 | public: |
cc83fca2 | 25 | /** |
26 | * Get the standard color for a ring | |
27 | * | |
28 | * @param d Detector | |
29 | * @param r Ring | |
30 | * | |
31 | * @return | |
32 | */ | |
33 | static Color_t RingColor(UShort_t d, Char_t r) | |
34 | { | |
35 | return ((d == 1 ? kRed : (d == 2 ? kGreen : kBlue)) | |
36 | + ((r == 'I' || r == 'i') ? 2 : -2)); | |
37 | } | |
0bd4b00f | 38 | //================================================================== |
39 | /** | |
40 | * @{ | |
7c1a1f1d | 41 | * @name Collision/run parameters |
0bd4b00f | 42 | */ |
43 | /** | |
44 | * Defined collision types | |
45 | */ | |
46 | enum ECollisionSystem { | |
47 | kUnknown, | |
48 | kPP, | |
49 | kPbPb | |
50 | }; | |
51 | //__________________________________________________________________ | |
52 | /** | |
53 | * Parse a collision system spec given in a string. Known values are | |
54 | * | |
55 | * - "pp", "p-p" which returns kPP | |
56 | * - "PbPb", "Pb-Pb", "A-A", which returns kPbPb | |
57 | * - Everything else gives kUnknown | |
58 | * | |
59 | * @param sys Collision system spec | |
60 | * | |
61 | * @return Collision system id | |
62 | */ | |
63 | static UShort_t ParseCollisionSystem(const char* sys); | |
64 | /** | |
65 | * Get a string representation of the collision system | |
66 | * | |
67 | * @param sys Collision system | |
68 | * - kPP -> "pp" | |
69 | * - kPbPb -> "PbPb" | |
70 | * - anything else gives "unknown" | |
71 | * | |
72 | * @return String representation of the collision system | |
73 | */ | |
74 | static const char* CollisionSystemString(UShort_t sys); | |
75 | //__________________________________________________________________ | |
76 | /** | |
77 | * Parse the center of mass energy given as a float and return known | |
78 | * values as a unsigned integer | |
79 | * | |
80 | * @param sys Collision system (needed for AA) | |
81 | * @param cms Center of mass energy * total charge | |
82 | * | |
83 | * @return Center of mass energy per nucleon | |
84 | */ | |
85 | static UShort_t ParseCenterOfMassEnergy(UShort_t sys, Float_t cms); | |
86 | /** | |
87 | * Get a string representation of the center of mass energy per nuclean | |
88 | * | |
7c1a1f1d | 89 | * @param cms Center of mass energy per nucleon |
0bd4b00f | 90 | * |
91 | * @return String representation of the center of mass energy per nuclean | |
92 | */ | |
93 | static const char* CenterOfMassEnergyString(UShort_t cms); | |
94 | //__________________________________________________________________ | |
95 | /** | |
96 | * Parse the magnetic field (in kG) as given by a floating point number | |
97 | * | |
98 | * @param field Magnetic field in kG | |
99 | * | |
100 | * @return Short integer value of magnetic field in kG | |
101 | */ | |
102 | static Short_t ParseMagneticField(Float_t field); | |
103 | /** | |
104 | * Get a string representation of the magnetic field | |
105 | * | |
106 | * @param field Magnetic field in kG | |
107 | * | |
108 | * @return String representation of the magnetic field | |
109 | */ | |
110 | static const char* MagneticFieldString(Short_t field); | |
111 | /* @} */ | |
112 | ||
113 | /** | |
114 | * @{ | |
115 | * @name Energy stragling functions | |
116 | */ | |
7f759bb7 | 117 | //__________________________________________________________________ |
118 | /** | |
119 | * Number of steps to do in the Landau, Gaussiam convolution | |
120 | */ | |
121 | static Int_t fgConvolutionSteps; | |
122 | //------------------------------------------------------------------ | |
123 | /** | |
124 | * How many sigma's of the Gaussian in the Landau, Gaussian | |
125 | * convolution to integrate over | |
126 | */ | |
127 | static Double_t fgConvolutionNSigma; | |
128 | //------------------------------------------------------------------ | |
129 | /** | |
130 | * Calculate the shifted Landau | |
131 | * @f[ | |
132 | * f'_{L}(x;\Delta,\xi) = f_L(x;\Delta+0.22278298\xi) | |
133 | * @f] | |
134 | * | |
135 | * where @f$ f_{L}@f$ is the ROOT implementation of the Landau | |
136 | * distribution (known to have @f$ \Delta_{p}=-0.22278298@f$ for | |
137 | * @f$\Delta=0,\xi=1@f$. | |
138 | * | |
139 | * @param x Where to evaluate @f$ f'_{L}@f$ | |
140 | * @param delta Most probable value | |
141 | * @param xi The 'width' of the distribution | |
142 | * | |
c389303e | 143 | * @return @f$ f'_{L}(x;\Delta,\xi) @f$ |
7f759bb7 | 144 | */ |
145 | static Double_t Landau(Double_t x, Double_t delta, Double_t xi); | |
146 | ||
147 | //------------------------------------------------------------------ | |
9d99b0dd | 148 | /** |
7f759bb7 | 149 | * Calculate the value of a Landau convolved with a Gaussian |
9d99b0dd | 150 | * |
7f759bb7 | 151 | * @f[ |
c389303e | 152 | * f(x;\Delta,\xi,\sigma') = \frac{1}{\sigma' \sqrt{2 \pi}} |
7f759bb7 | 153 | * \int_{-\infty}^{+\infty} d\Delta' f'_{L}(x;\Delta',\xi) |
c389303e | 154 | * \exp{-\frac{(\Delta-\Delta')^2}{2\sigma'^2}} |
7f759bb7 | 155 | * @f] |
9d99b0dd | 156 | * |
c389303e | 157 | * where @f$ f'_{L}@f$ is the Landau distribution, @f$ \Delta@f$ the |
158 | * energy loss, @f$ \xi@f$ the width of the Landau, and | |
159 | * @f$ \sigma'^2=\sigma^2-\sigma_n^2 @f$. Here, @f$\sigma@f$ is the | |
7f759bb7 | 160 | * variance of the Gaussian, and @f$\sigma_n@f$ is a parameter modelling |
161 | * noise in the detector. | |
162 | * | |
163 | * Note that this function uses the constants fgConvolutionSteps and | |
164 | * fgConvolutionNSigma | |
165 | * | |
166 | * References: | |
167 | * - <a href="http://dx.doi.org/10.1016/0168-583X(84)90472-5">Nucl.Instrum.Meth.B1:16</a> | |
168 | * - <a href="http://dx.doi.org/10.1103/PhysRevA.28.615">Phys.Rev.A28:615</a> | |
169 | * - <a href="http://root.cern.ch/root/htmldoc/tutorials/fit/langaus.C.html">ROOT implementation</a> | |
170 | * | |
171 | * @param x where to evaluate @f$ f@f$ | |
172 | * @param delta @f$ \Delta@f$ of @f$ f(x;\Delta,\xi,\sigma')@f$ | |
173 | * @param xi @f$ \xi@f$ of @f$ f(x;\Delta,\xi,\sigma')@f$ | |
c389303e | 174 | * @param sigma @f$ \sigma@f$ of @f$\sigma'^2=\sigma^2-\sigma_n^2 @f$ |
175 | * @param sigma_n @f$ \sigma_n@f$ of @f$\sigma'^2=\sigma^2-\sigma_n^2 @f$ | |
7f759bb7 | 176 | * |
177 | * @return @f$ f@f$ evaluated at @f$ x@f$. | |
9d99b0dd | 178 | */ |
7f759bb7 | 179 | static Double_t LandauGaus(Double_t x, Double_t delta, Double_t xi, |
180 | Double_t sigma, Double_t sigma_n); | |
0bd4b00f | 181 | |
182 | //------------------------------------------------------------------ | |
183 | /** | |
184 | * Evaluate | |
185 | * @f[ | |
186 | * f_i(x;\Delta,\xi,\sigma') = f(x;\Delta_i,\xi_i,\sigma_i') | |
187 | * @f] | |
188 | * corresponding to @f$ i@f$ particles i.e., with the substitutions | |
7c1a1f1d | 189 | * @f{eqnarray*}{ |
190 | * \Delta \rightarrow \Delta_i &=& i(\Delta + \xi\log(i))\\ | |
191 | * \xi \rightarrow \xi_i &=& i \xi\\ | |
192 | * \sigma \rightarrow \sigma_i &=& \sqrt{i}\sigma\\ | |
193 | * \sigma'^2 \rightarrow \sigma_i'^2 &=& \sigma_n^2 + \sigma_i^2 | |
194 | * @f} | |
0bd4b00f | 195 | * |
196 | * @param x Where to evaluate | |
197 | * @param delta @f$ \Delta@f$ | |
198 | * @param xi @f$ \xi@f$ | |
199 | * @param sigma @f$ \sigma@f$ | |
200 | * @param sigma_n @f$ \sigma_n@f$ | |
7c1a1f1d | 201 | * @param i @f$ i @f$ |
0bd4b00f | 202 | * |
7c1a1f1d | 203 | * @return @f$ f_i @f$ evaluated |
0bd4b00f | 204 | */ |
205 | static Double_t ILandauGaus(Double_t x, Double_t delta, Double_t xi, | |
206 | Double_t sigma, Double_t sigma_n, Int_t i); | |
207 | ||
208 | //------------------------------------------------------------------ | |
209 | /** | |
210 | * Numerically evaluate | |
211 | * @f[ | |
212 | * \left.\frac{\partial f_i}{\partial p_i}\right|_{x} | |
213 | * @f] | |
214 | * where @f$ p_i@f$ is the @f$ i^{\mbox{th}}@f$ parameter. The mapping | |
215 | * of the parameters is given by | |
216 | * | |
217 | * - 0: @f$\Delta@f$ | |
218 | * - 1: @f$\xi@f$ | |
219 | * - 2: @f$\sigma@f$ | |
220 | * - 3: @f$\sigma_n@f$ | |
221 | * | |
222 | * This is the partial derivative with respect to the parameter of | |
223 | * the response function corresponding to @f$ i@f$ particles i.e., | |
224 | * with the substitutions | |
225 | * @f[ | |
226 | * \Delta \rightarrow \Delta_i = i(\Delta + \xi\log(i))\\ | |
227 | * \xi \rightarrow \xi_i = i \xi\\ | |
228 | * \sigma \rightarrow \sigma_i = \sqrt{i}\sigma\\ | |
229 | * \sigma'^2 \rightarrow \sigma_i'^2 = \sigma_n^2 + \sigma_i^2 | |
230 | * @f] | |
231 | * | |
232 | * @param x Where to evaluate | |
233 | * @param ipar Parameter number | |
7c1a1f1d | 234 | * @param dp @f$ \epsilon\delta p_i@f$ for some value of @f$\epsilon@f$ |
0bd4b00f | 235 | * @param delta @f$ \Delta@f$ |
236 | * @param xi @f$ \xi@f$ | |
237 | * @param sigma @f$ \sigma@f$ | |
238 | * @param sigma_n @f$ \sigma_n@f$ | |
239 | * @param i @f$ i@f$ | |
240 | * | |
241 | * @return @f$ f_i@f$ evaluated | |
242 | */ | |
243 | static Double_t IdLandauGausdPar(Double_t x, UShort_t ipar, Double_t dp, | |
244 | Double_t delta, Double_t xi, | |
245 | Double_t sigma, Double_t sigma_n, Int_t i); | |
246 | ||
7f759bb7 | 247 | //------------------------------------------------------------------ |
9d99b0dd | 248 | /** |
7f759bb7 | 249 | * Evaluate |
c389303e | 250 | * @f[ |
0bd4b00f | 251 | * f_N(x;\Delta,\xi,\sigma') = \sum_{i=1}^N a_i f_i(x;\Delta,\xi,\sigma'a) |
252 | * @f] | |
9d99b0dd | 253 | * |
7f759bb7 | 254 | * where @f$ f(x;\Delta,\xi,\sigma')@f$ is the convolution of a |
255 | * Landau with a Gaussian (see LandauGaus). Note that | |
c389303e | 256 | * @f$ a_1 = 1@f$, @f$\Delta_i = i(\Delta_1 + \xi\log(i))@f$, |
257 | * @f$\xi_i=i\xi_1@f$, and @f$\sigma_i'^2 = \sigma_n^2 + i\sigma_1^2@f$. | |
7f759bb7 | 258 | * |
259 | * References: | |
260 | * - <a href="http://dx.doi.org/10.1016/0168-583X(84)90472-5">Nucl.Instrum.Meth.B1:16</a> | |
261 | * - <a href="http://dx.doi.org/10.1103/PhysRevA.28.615">Phys.Rev.A28:615</a> | |
262 | * - <a href="http://root.cern.ch/root/htmldoc/tutorials/fit/langaus.C.html">ROOT implementation</a> | |
9d99b0dd | 263 | * |
7f759bb7 | 264 | * @param x Where to evaluate @f$ f_N@f$ |
265 | * @param delta @f$ \Delta_1@f$ | |
266 | * @param xi @f$ \xi_1@f$ | |
267 | * @param sigma @f$ \sigma_1@f$ | |
268 | * @param sigma_n @f$ \sigma_n@f$ | |
269 | * @param n @f$ N@f$ in the sum above. | |
270 | * @param a Array of size @f$ N-1@f$ of the weights @f$ a_i@f$ for | |
271 | * @f$ i > 1@f$ | |
272 | * | |
273 | * @return @f$ f_N(x;\Delta,\xi,\sigma')@f$ | |
9d99b0dd | 274 | */ |
7f759bb7 | 275 | static Double_t NLandauGaus(Double_t x, Double_t delta, Double_t xi, |
276 | Double_t sigma, Double_t sigma_n, Int_t n, | |
277 | Double_t* a); | |
0bd4b00f | 278 | /** |
279 | * Generate a TF1 object of @f$ f_I@f$ | |
280 | * | |
281 | * @param c Constant | |
282 | * @param delta @f$ \Delta@f$ | |
283 | * @param xi @f$ \xi_1@f$ | |
284 | * @param sigma @f$ \sigma_1@f$ | |
285 | * @param sigma_n @f$ \sigma_n@f$ | |
286 | * @param i @f$ i@f$ - the number of particles | |
287 | * @param xmin Least value of range | |
288 | * @param xmax Largest value of range | |
289 | * | |
290 | * @return Newly allocated TF1 object | |
291 | */ | |
292 | static TF1* MakeILandauGaus(Double_t c, | |
293 | Double_t delta, Double_t xi, | |
294 | Double_t sigma, Double_t sigma_n, | |
295 | Int_t i, | |
296 | Double_t xmin, Double_t xmax); | |
297 | /** | |
298 | * Generate a TF1 object of @f$ f_N@f$ | |
299 | * | |
300 | * @param c Constant | |
301 | * @param delta @f$ \Delta@f$ | |
302 | * @param xi @f$ \xi_1@f$ | |
303 | * @param sigma @f$ \sigma_1@f$ | |
304 | * @param sigma_n @f$ \sigma_n@f$ | |
305 | * @param n @f$ N@f$ - how many particles to sum to | |
306 | * @param a Array of size @f$ N-1@f$ of the weights @f$ a_i@f$ for | |
307 | * @f$ i > 1@f$ | |
308 | * @param xmin Least value of range | |
309 | * @param xmax Largest value of range | |
310 | * | |
311 | * @return Newly allocated TF1 object | |
312 | */ | |
313 | static TF1* MakeNLandauGaus(Double_t c, | |
314 | Double_t delta, Double_t xi, | |
315 | Double_t sigma, Double_t sigma_n, | |
316 | Int_t n, Double_t* a, | |
317 | Double_t xmin, Double_t xmax); | |
318 | ||
7f759bb7 | 319 | //__________________________________________________________________ |
320 | /** | |
321 | * Structure to do fits to the energy loss spectrum | |
322 | * | |
ca610c5c | 323 | * @ingroup pwg2_forward |
7f759bb7 | 324 | */ |
325 | struct ELossFitter | |
326 | { | |
c389303e | 327 | enum { |
328 | kC = 0, | |
329 | kDelta, | |
330 | kXi, | |
331 | kSigma, | |
332 | kSigmaN, | |
333 | kN, | |
334 | kA | |
335 | }; | |
7f759bb7 | 336 | /** |
337 | * Constructor | |
338 | * | |
339 | * @param lowCut Lower cut of spectrum - data below this cuts is ignored | |
340 | * @param maxRange Maximum range to fit to | |
341 | * @param minusBins The number of bins below maximum to use | |
342 | */ | |
343 | ELossFitter(Double_t lowCut, Double_t maxRange, UShort_t minusBins); | |
7984e5f7 | 344 | /** |
345 | * Destructor | |
346 | * | |
347 | */ | |
7f759bb7 | 348 | virtual ~ELossFitter(); |
349 | /** | |
350 | * Clear internal arrays | |
351 | * | |
352 | */ | |
353 | void Clear(); | |
354 | /** | |
355 | * Fit a 1-particle signal to the passed energy loss distribution | |
356 | * | |
357 | * Note that this function clears the internal arrays first | |
358 | * | |
359 | * @param dist Data to fit the function to | |
360 | * @param sigman If larger than zero, the initial guess of the | |
361 | * detector induced noise. If zero or less, then this | |
362 | * parameter is ignored in the fit (fixed at 0) | |
363 | * | |
364 | * @return The function fitted to the data | |
365 | */ | |
366 | TF1* Fit1Particle(TH1* dist, Double_t sigman=-1); | |
367 | /** | |
368 | * Fit a N-particle signal to the passed energy loss distribution | |
369 | * | |
370 | * If there's no 1-particle fit present, it does that first | |
371 | * | |
372 | * @param dist Data to fit the function to | |
c389303e | 373 | * @param n Number of particle signals to fit |
7f759bb7 | 374 | * @param sigman If larger than zero, the initial guess of the |
375 | * detector induced noise. If zero or less, then this | |
376 | * parameter is ignored in the fit (fixed at 0) | |
377 | * | |
378 | * @return The function fitted to the data | |
379 | */ | |
380 | TF1* FitNParticle(TH1* dist, UShort_t n, Double_t sigman=-1); | |
381 | ||
382 | ||
383 | const Double_t fLowCut; // Lower cut on data | |
384 | const Double_t fMaxRange; // Maximum range to fit | |
385 | const UShort_t fMinusBins; // Number of bins from maximum to fit 1st peak | |
386 | TObjArray fFitResults; // Array of fit results | |
387 | TObjArray fFunctions; // Array of functions | |
388 | }; | |
0bd4b00f | 389 | /* @} */ |
7f759bb7 | 390 | |
391 | ||
0bd4b00f | 392 | //================================================================== |
393 | /** | |
394 | * @{ | |
395 | * @name Convenience containers | |
396 | */ | |
7e4038b5 | 397 | /** |
398 | * Structure to hold histograms | |
399 | * | |
7c1a1f1d | 400 | * @ingroup pwg2_forward |
7e4038b5 | 401 | */ |
402 | struct Histos : public TObject | |
403 | { | |
404 | /** | |
405 | * Constructor | |
406 | * | |
407 | * | |
408 | */ | |
409 | Histos() : fFMD1i(0), fFMD2i(0), fFMD2o(0), fFMD3i(0), fFMD3o(0) {} | |
410 | /** | |
411 | * Copy constructor | |
412 | * | |
413 | * @param o Object to copy from | |
414 | */ | |
415 | Histos(const Histos& o) | |
416 | : TObject(o), | |
417 | fFMD1i(o.fFMD1i), | |
418 | fFMD2i(o.fFMD2i), | |
419 | fFMD2o(o.fFMD2o), | |
420 | fFMD3i(o.fFMD3i), | |
421 | fFMD3o(o.fFMD3o) | |
422 | {} | |
423 | /** | |
424 | * Assignement operator | |
425 | * | |
426 | * @return Reference to this | |
427 | */ | |
428 | Histos& operator=(const Histos&) { return *this;} | |
429 | /** | |
430 | * Destructor | |
431 | */ | |
432 | ~Histos(); | |
433 | /** | |
434 | * Initialize the object | |
435 | * | |
436 | * @param etaAxis Eta axis to use | |
437 | */ | |
438 | void Init(const TAxis& etaAxis); | |
439 | /** | |
440 | * Make a histogram | |
441 | * | |
442 | * @param d Detector | |
443 | * @param r Ring | |
444 | * @param etaAxis Eta axis to use | |
445 | * | |
446 | * @return Newly allocated histogram | |
447 | */ | |
448 | TH2D* Make(UShort_t d, Char_t r, const TAxis& etaAxis) const; | |
449 | /** | |
450 | * Clear data | |
451 | * | |
452 | * @param option Not used | |
453 | */ | |
454 | void Clear(Option_t* option=""); | |
455 | // const TH2D* Get(UShort_t d, Char_t r) const; | |
456 | /** | |
457 | * Get the histogram for a particular detector,ring | |
458 | * | |
459 | * @param d Detector | |
460 | * @param r Ring | |
461 | * | |
462 | * @return Histogram for detector,ring or nul | |
463 | */ | |
464 | TH2D* Get(UShort_t d, Char_t r) const; | |
465 | TH2D* fFMD1i; // Histogram for FMD1i | |
466 | TH2D* fFMD2i; // Histogram for FMD2i | |
467 | TH2D* fFMD2o; // Histogram for FMD2o | |
468 | TH2D* fFMD3i; // Histogram for FMD3i | |
469 | TH2D* fFMD3o; // Histogram for FMD3o | |
9d99b0dd | 470 | |
471 | ClassDef(Histos,1) | |
7e4038b5 | 472 | }; |
473 | ||
9d99b0dd | 474 | //__________________________________________________________________ |
ca610c5c | 475 | /** |
476 | * Base class for structure holding ring specific histograms | |
477 | * | |
478 | * @ingroup pwg2_forward | |
479 | */ | |
9d99b0dd | 480 | struct RingHistos : public TObject |
481 | { | |
ca610c5c | 482 | /** |
483 | * Constructor | |
484 | * | |
485 | */ | |
9d99b0dd | 486 | RingHistos() : fDet(0), fRing('\0'), fName("") {} |
ca610c5c | 487 | /** |
488 | * | |
489 | * | |
490 | * @param d Detector | |
491 | * @param r Ring | |
492 | */ | |
9d99b0dd | 493 | RingHistos(UShort_t d, Char_t r) |
494 | : fDet(d), fRing(r), fName(TString::Format("FMD%d%c", d, r)) | |
495 | {} | |
ca610c5c | 496 | /** |
497 | * Copy constructor | |
498 | * | |
499 | * @param o Object to copy from | |
500 | */ | |
9d99b0dd | 501 | RingHistos(const RingHistos& o) |
502 | : TObject(o), fDet(o.fDet), fRing(o.fRing), fName(o.fName) | |
503 | {} | |
ca610c5c | 504 | /** |
505 | * | |
506 | */ | |
9d99b0dd | 507 | virtual ~RingHistos() {} |
ca610c5c | 508 | /** |
509 | * Assignement operator | |
510 | * | |
511 | * @param o Object to assign from | |
512 | * | |
513 | * @return Reference to this | |
514 | */ | |
9d99b0dd | 515 | RingHistos& operator=(const RingHistos& o) |
516 | { | |
517 | TObject::operator=(o); | |
518 | fDet = o.fDet; | |
519 | fRing = o.fRing; | |
520 | fName = o.fName; | |
521 | return *this; | |
522 | } | |
ca610c5c | 523 | /** |
7984e5f7 | 524 | * Define the outout list in @a d |
ca610c5c | 525 | * |
7984e5f7 | 526 | * @param d Where to put the output list |
ca610c5c | 527 | * |
7984e5f7 | 528 | * @return Newly allocated TList object or null |
ca610c5c | 529 | */ |
9d99b0dd | 530 | TList* DefineOutputList(TList* d) const; |
ca610c5c | 531 | /** |
7984e5f7 | 532 | * Get our output list from the container @a d |
ca610c5c | 533 | * |
7984e5f7 | 534 | * @param d where to get the output list from |
ca610c5c | 535 | * |
7984e5f7 | 536 | * @return The found TList or null |
ca610c5c | 537 | */ |
9d99b0dd | 538 | TList* GetOutputList(TList* d) const; |
ca610c5c | 539 | /** |
7984e5f7 | 540 | * Find a specific histogram in the source list @a d |
ca610c5c | 541 | * |
7984e5f7 | 542 | * @param d (top)-container |
543 | * @param name Name of histogram | |
ca610c5c | 544 | * |
7984e5f7 | 545 | * @return Found histogram or null |
ca610c5c | 546 | */ |
9d99b0dd | 547 | TH1* GetOutputHist(TList* d, const char* name) const; |
ca610c5c | 548 | /** |
549 | * | |
550 | * | |
551 | * | |
552 | * @return | |
553 | */ | |
7f759bb7 | 554 | Color_t Color() const |
555 | { | |
cc83fca2 | 556 | return AliForwardUtil::RingColor(fDet, fRing); |
7f759bb7 | 557 | } |
ca610c5c | 558 | UShort_t fDet; // Detector |
559 | Char_t fRing; // Ring | |
560 | TString fName; // Name | |
9d99b0dd | 561 | |
562 | ClassDef(RingHistos,1) | |
563 | }; | |
0bd4b00f | 564 | /* @} */ |
9d99b0dd | 565 | |
7e4038b5 | 566 | }; |
567 | ||
568 | #endif | |
569 | // Local Variables: | |
570 | // mode: C++ | |
571 | // End: | |
572 |