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faf93237 | 1 | #include "AliTPCExB.h" |
2abfc1e6 | 2 | #include "TMath.h" |
3 | #include "TTreeStream.h" | |
9170bb1b | 4 | #include "AliMagF.h" |
5 | #include "TLinearFitter.h" | |
3ac615eb | 6 | #include "AliTPCcalibDB.h" |
2abfc1e6 | 7 | |
8 | ||
9 | // | |
10 | // Abstract class for ExB effect parameterization | |
11 | // | |
12 | // | |
13 | // | |
14 | // The ExB correction map is stored in the calib DB | |
15 | // The lookup can be dumped to the tree: | |
16 | /* | |
17 | ||
18 | // | |
19 | char *storage = "local://OCDBres" | |
20 | Int_t RunNumber=0; | |
21 | AliCDBManager::Instance()->SetDefaultStorage(storage); | |
22 | AliCDBManager::Instance()->SetRun(RunNumber) | |
23 | AliTPCExBFirst * exb = AliTPCcalibDB::Instance()->GetExB(); | |
24 | // | |
25 | // See example macro $ALICE_ROOT/TPC/macros/AliTPCExBdraw.C | |
26 | // | |
27 | .L $ALICE_ROOT/TPC/macros/AliTPCExBdraw.C | |
74e16bc1 | 28 | Draw(0) |
2abfc1e6 | 29 | |
30 | ||
31 | ||
32 | ||
33 | */ | |
34 | ||
35 | AliTPCExB* AliTPCExB::fgInstance = 0; | |
faf93237 | 36 | |
9170bb1b | 37 | TObjArray AliTPCExB::fgArray; |
38 | ||
39 | ||
40 | ||
faf93237 | 41 | ClassImp(AliTPCExB) |
42 | ||
9170bb1b | 43 | AliTPCExB::AliTPCExB(): |
44 | TObject(), | |
45 | fMatBrBz(0), //param matrix Br/Bz | |
46 | fMatBrfiBz(0), //param matrix Br/Bz | |
47 | fMatBrBzI0(0), //param matrix Br/Bz integral z>0 | |
48 | fMatBrBzI1(0), //param matrix Br/Bz integral z<0 | |
49 | fMatBrfiBzI0(0), //param matrix Br/Bz integral z>0 | |
50 | fMatBrfiBzI1(0) //param matrix Br/Bz integral z<0 | |
51 | { | |
52 | // | |
53 | // default constructor | |
54 | // | |
55 | } | |
56 | ||
0ffd2ae1 | 57 | AliTPCExB::AliTPCExB(const AliTPCExB& exb): |
58 | TObject(exb), | |
59 | fMatBrBz(new TVectorD(*(exb.fMatBrBz))), //param matrix Br/Bz | |
60 | fMatBrfiBz(new TVectorD(*(exb.fMatBrfiBz))), //param matrix Br/Bz | |
61 | fMatBrBzI0(new TVectorD(*(exb.fMatBrBzI0))), //param matrix Br/Bz integral z>0 | |
62 | fMatBrBzI1(new TVectorD(*(exb.fMatBrBzI1))), //param matrix Br/Bz integral z<0 | |
63 | fMatBrfiBzI0(new TVectorD(*(exb.fMatBrfiBzI0))), //param matrix Br/Bz integral z>0 | |
64 | fMatBrfiBzI1(new TVectorD(*(exb.fMatBrfiBzI1))) //param matrix Br/Bz integral z<0 | |
65 | { | |
66 | // | |
67 | // copy constructor | |
68 | // | |
69 | } | |
70 | ||
71 | AliTPCExB& AliTPCExB::operator=(const AliTPCExB &/*exb*/) | |
72 | { | |
73 | // | |
74 | // Dummy assignment | |
75 | // | |
76 | return *this; | |
77 | } | |
78 | ||
79 | ||
80 | ||
2abfc1e6 | 81 | |
82 | void AliTPCExB::TestExB(const char* fileName) { | |
83 | // | |
9170bb1b | 84 | // Test ExB - |
85 | // Dump the filed and corrections to the tree in file fileName | |
2abfc1e6 | 86 | // |
9170bb1b | 87 | // |
2abfc1e6 | 88 | TTreeSRedirector ts(fileName); |
89 | Double_t x[3]; | |
90 | for (x[0]=-250.;x[0]<=250.;x[0]+=10.) | |
91 | for (x[1]=-250.;x[1]<=250.;x[1]+=10.) | |
9170bb1b | 92 | for (x[2]=-250.;x[2]<=250.;x[2]+=20.) { |
93 | Double_t r=TMath::Sqrt(x[0]*x[0]+x[1]*x[1]); | |
94 | if (r<20) continue; | |
95 | if (r>260) continue; | |
96 | Double_t z = x[2]; | |
2abfc1e6 | 97 | Double_t d[3]; |
98 | Correct(x,d); | |
2abfc1e6 | 99 | Double_t rd=TMath::Sqrt(d[0]*d[0]+d[1]*d[1]); |
100 | Double_t dr=r-rd; | |
9170bb1b | 101 | Double_t phi=TMath::ATan2(x[1],x[0]); |
102 | Double_t phid=TMath::ATan2(d[1],d[0]); | |
2abfc1e6 | 103 | Double_t dphi=phi-phid; |
104 | if (dphi<0.) dphi+=TMath::TwoPi(); | |
105 | if (dphi>TMath::Pi()) dphi=TMath::TwoPi()-dphi; | |
106 | Double_t drphi=r*dphi; | |
107 | Double_t dx=x[0]-d[0]; | |
108 | Double_t dy=x[1]-d[1]; | |
109 | Double_t dz=x[2]-d[2]; | |
9170bb1b | 110 | // |
111 | Double_t bx = GetBx(r,phi,z,0); | |
112 | Double_t by = GetBy(r,phi,z,0); | |
113 | Double_t bz = GetBz(r,phi,z,0); | |
114 | Double_t br = GetBr(r,phi,z,0); | |
115 | Double_t brfi = GetBrfi(r,phi,z,0); | |
116 | // | |
117 | Double_t bxi = GetBxI(r,phi,z,0); | |
118 | Double_t byi = GetByI(r,phi,z,0); | |
119 | Double_t bzi = GetBzI(r,phi,z,0); | |
120 | Double_t bri = GetBrI(r,phi,z,0); | |
121 | Double_t brfii = GetBrfiI(r,phi,z,0); | |
122 | ||
123 | ts<<"positions"<< | |
124 | "x0="<<x[0]<< | |
125 | "x1="<<x[1]<< | |
126 | "x2="<<x[2]<< | |
127 | "dx="<<dx<< | |
128 | "dy="<<dy<< | |
129 | "dz="<<dz<< | |
130 | "r="<<r<< | |
131 | "phi="<<phi<< | |
132 | "dr="<<dr<< | |
133 | "drphi="<<drphi<< | |
134 | // | |
135 | // B-Field | |
136 | // | |
137 | "bx="<<bx<< | |
138 | "by="<<by<< | |
139 | "bz="<<bz<< | |
140 | "br="<< br<< | |
141 | "brfi="<<brfi<< | |
142 | // B-field integ | |
143 | "bxi="<<bxi<< | |
144 | "byi="<<byi<< | |
145 | "bzi="<<bzi<< | |
146 | "bri="<< bri<< | |
147 | "brfii="<<brfii<< | |
148 | "\n"; | |
2abfc1e6 | 149 | } |
150 | } | |
151 | ||
152 | ||
153 | ||
3ac615eb | 154 | Double_t AliTPCExB::GetDr(Double_t r, Double_t phi, Double_t z, Double_t bz){ |
2abfc1e6 | 155 | // |
156 | // Static function | |
157 | // Posibble to us it for visualization | |
158 | // | |
159 | // | |
3ac615eb | 160 | AliTPCExB *exb = AliTPCcalibDB::GetExB(bz,kFALSE); |
161 | if (!exb) return 0; | |
7cc2f55b | 162 | Double_t pos0[3] = {r*TMath::Cos(phi), r*TMath::Sin(phi),z}; |
2abfc1e6 | 163 | Double_t pos1[3]; |
3ac615eb | 164 | exb->Correct(pos0,pos1); |
2abfc1e6 | 165 | Double_t dx=pos1[0]-pos0[0]; |
166 | Double_t dy=pos1[1]-pos0[1]; | |
167 | // Double_t dz=pos1[2]-pos0[2]; | |
3ac615eb | 168 | // return TMath::Sqrt(dx*dx+dy*dy); |
169 | Float_t dr = (dx*pos0[0]+dy*pos0[1])/r; | |
170 | return dr; | |
2abfc1e6 | 171 | } |
172 | ||
173 | ||
3ac615eb | 174 | Double_t AliTPCExB::GetDrphi(Double_t r, Double_t phi, Double_t z, Double_t bz){ |
2abfc1e6 | 175 | // |
176 | // | |
177 | // | |
3ac615eb | 178 | AliTPCExB *exb = AliTPCcalibDB::GetExB(bz,kFALSE); |
179 | if (!exb) return 0; | |
7cc2f55b | 180 | Double_t pos0[3] = {r*TMath::Cos(phi), r*TMath::Sin(phi),z}; |
2abfc1e6 | 181 | Double_t pos1[3]; |
3ac615eb | 182 | exb->Correct(pos0,pos1); |
2abfc1e6 | 183 | Double_t dphi=TMath::ATan2(pos1[1],pos1[0])-TMath::ATan2(pos0[1],pos0[0]); |
184 | return r*dphi; | |
185 | ||
186 | } | |
187 | ||
188 | ||
3ac615eb | 189 | Double_t AliTPCExB::GetDphi(Double_t r, Double_t phi, Double_t z, Double_t bz){ |
2abfc1e6 | 190 | // |
191 | // | |
3ac615eb | 192 | // |
193 | AliTPCExB *exb = AliTPCcalibDB::GetExB(bz,kFALSE); | |
194 | if (!exb) return 0; | |
7cc2f55b | 195 | Double_t pos0[3] = {r*TMath::Cos(phi), r*TMath::Sin(phi),z}; |
2abfc1e6 | 196 | Double_t pos1[3]; |
3ac615eb | 197 | exb->Correct(pos0,pos1); |
2abfc1e6 | 198 | Double_t dphi=TMath::ATan2(pos1[1],pos1[0])-TMath::ATan2(pos0[1],pos0[0]); |
199 | return dphi; | |
200 | ||
201 | } | |
202 | ||
3ac615eb | 203 | Double_t AliTPCExB::GetDz(Double_t r, Double_t phi, Double_t z, Double_t bz){ |
2abfc1e6 | 204 | // |
205 | // | |
206 | // | |
3ac615eb | 207 | AliTPCExB *exb = AliTPCcalibDB::GetExB(bz,kFALSE); |
208 | if (!exb) return 0; | |
7cc2f55b | 209 | Double_t pos0[3] = {r*TMath::Cos(phi), r*TMath::Sin(phi),z}; |
2abfc1e6 | 210 | Double_t pos1[3]; |
3ac615eb | 211 | exb->Correct(pos0,pos1); |
2abfc1e6 | 212 | Double_t dz=pos1[2]-pos0[2]; |
213 | return dz; | |
214 | } | |
9170bb1b | 215 | |
216 | // | |
217 | // Magnetic field | |
218 | // | |
219 | ||
220 | ||
221 | ||
222 | ||
223 | void AliTPCExB::RegisterField(Int_t index, AliMagF * magf){ | |
224 | // | |
225 | // add the filed to the list | |
226 | // | |
227 | fgArray.AddAt(magf,index); | |
228 | } | |
229 | ||
230 | ||
231 | ||
232 | Double_t AliTPCExB::GetBx(Double_t r, Double_t phi, Double_t z,Int_t index){ | |
233 | // | |
234 | // | |
235 | // | |
236 | AliMagF *mag = (AliMagF*)fgArray.At(index); | |
237 | if (!mag) return 0; | |
f7a1cc68 | 238 | Double_t xyz[3]={r*TMath::Cos(phi),r*TMath::Sin(phi),z}; |
9170bb1b | 239 | // xyz[1]+=30; |
f7a1cc68 | 240 | Double_t bxyz[3]; |
9170bb1b | 241 | mag->Field(xyz,bxyz); |
242 | return bxyz[0]; | |
243 | } | |
244 | ||
245 | Double_t AliTPCExB::GetBy(Double_t r, Double_t phi, Double_t z,Int_t index){ | |
246 | // | |
247 | // | |
248 | // | |
249 | AliMagF *mag = (AliMagF*)fgArray.At(index); | |
250 | if (!mag) return 0; | |
f7a1cc68 | 251 | Double_t xyz[3]={r*TMath::Cos(phi),r*TMath::Sin(phi),z}; |
9170bb1b | 252 | // xyz[1]+=30; |
f7a1cc68 | 253 | Double_t bxyz[3]; |
9170bb1b | 254 | mag->Field(xyz,bxyz); |
255 | return bxyz[1]; | |
256 | } | |
257 | ||
258 | Double_t AliTPCExB::GetBz(Double_t r, Double_t phi, Double_t z,Int_t index){ | |
259 | // | |
260 | // | |
261 | // | |
262 | AliMagF *mag = (AliMagF*)fgArray.At(index); | |
263 | if (!mag) return 0; | |
f7a1cc68 | 264 | Double_t xyz[3]={r*TMath::Cos(phi),r*TMath::Sin(phi),z}; |
9170bb1b | 265 | // xyz[1]+=30; |
f7a1cc68 | 266 | Double_t bxyz[3]; |
9170bb1b | 267 | mag->Field(xyz,bxyz); |
268 | return bxyz[2]; | |
269 | } | |
270 | ||
271 | ||
272 | ||
273 | Double_t AliTPCExB::GetBr(Double_t r, Double_t phi, Double_t z,Int_t index){ | |
274 | // | |
275 | // | |
276 | // | |
277 | AliMagF *mag = (AliMagF*)fgArray.At(index); | |
278 | if (!mag) return 0; | |
f7a1cc68 | 279 | Double_t xyz[3]={r*TMath::Cos(phi),r*TMath::Sin(phi),z}; |
9170bb1b | 280 | //xyz[1]+=30; |
f7a1cc68 | 281 | Double_t bxyz[3]; |
9170bb1b | 282 | mag->Field(xyz,bxyz); |
283 | if (r==0) return 0; | |
f7a1cc68 | 284 | Double_t br = (bxyz[0]*xyz[0]+bxyz[1]*xyz[1])/r; |
9170bb1b | 285 | return br; |
286 | } | |
287 | ||
288 | Double_t AliTPCExB::GetBrfi(Double_t r, Double_t phi, Double_t z,Int_t index){ | |
289 | // | |
290 | // | |
291 | // | |
292 | AliMagF *mag = (AliMagF*)fgArray.At(index); | |
293 | if (!mag) return 0; | |
f7a1cc68 | 294 | Double_t xyz[3]={r*TMath::Cos(phi),r*TMath::Sin(phi),z}; |
9170bb1b | 295 | //xyz[1]+=30; |
f7a1cc68 | 296 | Double_t bxyz[3]; |
9170bb1b | 297 | mag->Field(xyz,bxyz); |
298 | if (r==0) return 0; | |
f7a1cc68 | 299 | Double_t br = (-bxyz[0]*xyz[1]+bxyz[1]*xyz[0])/r; |
9170bb1b | 300 | return br; |
301 | } | |
302 | ||
303 | ||
304 | ||
305 | ||
306 | Double_t AliTPCExB::GetBxI(Double_t r, Double_t phi, Double_t z,Int_t index) | |
307 | { | |
308 | Double_t sumf =0; | |
309 | if (z>0 &&z<250){ | |
310 | for (Float_t zi=z;zi<250;zi+=5){ | |
311 | sumf+=GetBx(r,phi,zi,index)/GetBz(r,phi,zi,index); | |
312 | } | |
313 | } | |
314 | if (z<0 &&z>-250){ | |
315 | for (Float_t zi=z;zi>-250;zi-=5){ | |
316 | sumf+=GetBx(r,phi,zi,index)/GetBz(r,phi,zi,index); | |
317 | } | |
318 | } | |
319 | return sumf*5; | |
320 | } | |
321 | ||
322 | Double_t AliTPCExB::GetByI(Double_t r, Double_t phi, Double_t z,Int_t index) | |
323 | { | |
324 | Double_t sumf =0; | |
325 | if (z>0 &&z<250){ | |
326 | for (Float_t zi=z;zi<250;zi+=5){ | |
327 | sumf+=GetBy(r,phi,zi,index)/GetBz(r,phi,zi,index); | |
328 | } | |
329 | } | |
330 | if (z<0 &&z>-250){ | |
331 | for (Float_t zi=z;zi>-250;zi-=5){ | |
332 | sumf+=GetBy(r,phi,zi,index)/GetBz(r,phi,zi,index); | |
333 | } | |
334 | } | |
335 | return sumf*5; | |
336 | } | |
337 | ||
338 | Double_t AliTPCExB::GetBzI(Double_t r, Double_t phi, Double_t z,Int_t index) | |
339 | { | |
340 | Double_t sumf =0; | |
341 | if (z>0 &&z<250){ | |
342 | for (Float_t zi=z;zi<250;zi+=5){ | |
343 | sumf+=GetBz(r,phi,zi,index); | |
344 | } | |
345 | } | |
346 | if (z<0 &&z>-250){ | |
347 | for (Float_t zi=z;zi>-250;zi-=5){ | |
348 | sumf+=GetBz(r,phi,zi,index); | |
349 | } | |
350 | } | |
351 | return sumf*5; | |
352 | } | |
353 | ||
354 | ||
355 | Double_t AliTPCExB::GetBrI(Double_t r, Double_t phi, Double_t z,Int_t index) | |
356 | { | |
357 | Double_t sumf =0; | |
358 | if (z>0 &&z<250){ | |
359 | for (Float_t zi=z;zi<250;zi+=5){ | |
360 | sumf+=GetBr(r,phi,zi,index)/GetBz(r,phi,zi,index); | |
361 | } | |
362 | } | |
363 | if (z<0 &&z>-250){ | |
364 | for (Float_t zi=z;zi>-250;zi-=5){ | |
365 | sumf+=GetBr(r,phi,zi,index)/GetBz(r,phi,zi,index); | |
366 | } | |
367 | } | |
368 | return sumf*5; | |
369 | } | |
370 | ||
371 | Double_t AliTPCExB::GetBrfiI(Double_t r, Double_t phi, Double_t z,Int_t index) | |
372 | { | |
373 | Double_t sumf =0; | |
374 | if (z>0 &&z<250){ | |
375 | for (Float_t zi=z;zi<250;zi+=5.){ | |
376 | sumf+=GetBrfi(r,phi,zi,index)/GetBz(r,phi,zi,index); | |
377 | } | |
378 | } | |
379 | if (z<0 &&z>-250){ | |
380 | for (Float_t zi=z;zi>-250;zi-=5){ | |
381 | sumf+=GetBrfi(r,phi,zi,index)/GetBz(r,phi,zi,index); | |
382 | } | |
383 | } | |
384 | return sumf*5; | |
385 | } | |
386 | ||
387 | ||
388 | Double_t AliTPCExB::Eval(Int_t type, Double_t r, Double_t phi, Double_t z){ | |
389 | // | |
390 | // Evaluate parameterization | |
391 | // | |
392 | // br integral param | |
393 | if (type==0) { | |
394 | if (z>0 && fMatBrBzI0) return EvalMat(*fMatBrBzI0,r,phi,z); | |
395 | if (z<0 && fMatBrBzI1) return EvalMat(*fMatBrBzI1,r,phi,z); | |
396 | } | |
397 | // brfi integral param | |
398 | if (type==1) { | |
399 | if (z>0 && fMatBrfiBzI0) return EvalMat(*fMatBrfiBzI0,r,phi,z); | |
400 | if (z<0 && fMatBrfiBzI1) return EvalMat(*fMatBrfiBzI1,r,phi,z); | |
401 | } | |
402 | // brbz param | |
403 | if (type==2 && fMatBrBz) return EvalMat(*fMatBrBz,r,phi,z); | |
404 | // brfibz param | |
405 | if (type==3 && fMatBrfiBz) return EvalMat(*fMatBrfiBz,r,phi,z); | |
406 | return 0; | |
407 | } | |
408 | ||
409 | ||
410 | Double_t AliTPCExB::EvalMat(TVectorD &vec, Double_t r, Double_t phi, Double_t z){ | |
411 | // | |
412 | // Evaluate taylor expansion in r,phi,z | |
413 | // | |
414 | // Variables | |
415 | //tree->SetAlias("sa","sin(phi+0.0)"); | |
416 | //tree->SetAlias("ca","cos(phi+0.0)"); | |
417 | //tree->SetAlias("sa2","sin(phi*2+0.0)"); | |
418 | //tree->SetAlias("ca2","cos(phi*2+0.0)"); | |
419 | //tree->SetAlias("zn","(x2/250.)"); | |
420 | //tree->SetAlias("rn","(r/250.)") | |
421 | // TString fstringSym=""; | |
422 | // // | |
423 | // fstringSym+="zn++"; | |
424 | // fstringSym+="rn++"; | |
425 | // fstringSym+="zn*rn++"; | |
426 | // fstringSym+="zn*zn++"; | |
427 | // fstringSym+="zn*zn*rn++"; | |
428 | // fstringSym+="zn*rn*rn++"; | |
429 | // // | |
430 | // fstringSym+="sa++"; | |
431 | // fstringSym+="ca++"; | |
432 | // fstringSym+="ca2++"; | |
433 | // fstringSym+="sa2++"; | |
434 | // fstringSym+="ca*zn++"; | |
435 | // fstringSym+="sa*zn++"; | |
436 | // fstringSym+="ca2*zn++"; | |
437 | // fstringSym+="sa2*zn++"; | |
438 | // fstringSym+="ca*zn*zn++"; | |
439 | // fstringSym+="sa*zn*zn++"; | |
440 | // fstringSym+="ca*zn*rn++"; | |
441 | // fstringSym+="sa*zn*rn++"; | |
442 | ||
443 | ||
444 | Double_t sa = TMath::Sin(phi); | |
445 | Double_t ca = TMath::Cos(phi); | |
446 | Double_t sa2 = TMath::Sin(phi*2); | |
447 | Double_t ca2 = TMath::Cos(phi*2); | |
448 | Double_t zn = z/250.; | |
449 | Double_t rn = r/250.; | |
450 | Int_t ipoint=0; | |
451 | Double_t res = vec[ipoint++]; | |
452 | res+=vec[ipoint++]*zn; | |
453 | res+=vec[ipoint++]*rn; | |
454 | res+=vec[ipoint++]*zn*rn; | |
455 | res+=vec[ipoint++]*zn*zn; | |
456 | res+=vec[ipoint++]*zn*zn*rn; | |
457 | res+=vec[ipoint++]*zn*rn*rn; | |
458 | // | |
459 | res+=vec[ipoint++]*sa; | |
460 | res+=vec[ipoint++]*ca; | |
461 | res+=vec[ipoint++]*ca2; | |
462 | res+=vec[ipoint++]*sa2; | |
463 | res+=vec[ipoint++]*ca*zn; | |
464 | res+=vec[ipoint++]*sa*zn; | |
465 | res+=vec[ipoint++]*ca2*zn; | |
466 | res+=vec[ipoint++]*sa2*zn; | |
467 | res+=vec[ipoint++]*ca*zn*zn; | |
468 | res+=vec[ipoint++]*sa*zn*zn; | |
469 | res+=vec[ipoint++]*ca*zn*rn; | |
470 | res+=vec[ipoint++]*sa*zn*rn; | |
471 | return res; | |
472 | } | |
473 | ||
474 | ||
475 | ||
476 | ||
477 | ||
478 | ||
479 | ||
480 | ||
481 | ||
482 | ||
483 | ||
484 | ||
485 | ||
486 | ||
487 | /* | |
488 | ||
489 | AliTPCExB draw; | |
490 | draw.RegisterField(0,new AliMagWrapCheb("Maps","Maps", 2, 1., 10., AliMagWrapCheb::k5kG)); | |
491 | draw.RegisterField(1,new AliMagFMaps("Maps","Maps", 2, 1., 10., 2)); | |
492 | ||
493 | TF2 fbz_rz_0pi("fbz_rz_0pi","AliTPCExB::GetBz(x,0*pi,y)",0,250,-250,250); | |
494 | fbz_rz_0pi->Draw("surf2"); | |
495 | ||
496 | TF1 fbz_z_90_00pi("fbz_z_90_00pi","AliTPCExB::GetBz(90,0*pi,x)",-250,250); | |
497 | TF1 fbz_z_90_05pi("fbz_z_90_05pi","AliTPCExB::GetBz(90,0.5*pi,x)",-250,250); | |
498 | TF1 fbz_z_90_10pi("fbz_z_90_10pi","AliTPCExB::GetBz(90,1.0*pi,x)",-250,250); | |
499 | TF1 fbz_z_90_15pi("fbz_z_90_15pi","AliTPCExB::GetBz(90,1.5*pi,x)",-250,250); | |
500 | fbz_z_90_00pi->SetLineColor(2); | |
501 | fbz_z_90_05pi->SetLineColor(3); | |
502 | fbz_z_90_10pi->SetLineColor(4); | |
503 | fbz_z_90_15pi->SetLineColor(5); | |
504 | fbz_z_90_00pi->Draw() | |
505 | fbz_z_90_05pi->Draw("same") | |
506 | fbz_z_90_15pi->Draw("same") | |
507 | fbz_z_90_10pi->Draw("same") | |
508 | ||
509 | ||
510 | TF1 fbr_z_90_00pi("fbz_z_90_00pi","AliTPCExB::GetBr(90,0*pi,x)",-250,250); | |
511 | TF1 fbr_z_90_05pi("fbz_z_90_05pi","AliTPCExB::GetBr(90,0.5*pi,x)",-250,250); | |
512 | TF1 fbr_z_90_10pi("fbz_z_90_10pi","AliTPCExB::GetBr(90,1.0*pi,x)",-250,250); | |
513 | TF1 fbr_z_90_15pi("fbz_z_90_15pi","AliTPCExB::GetBr(90,1.5*pi,x)",-250,250); | |
514 | fbr_z_90_00pi->SetLineColor(2); | |
515 | fbr_z_90_05pi->SetLineColor(3); | |
516 | fbr_z_90_10pi->SetLineColor(4); | |
517 | fbr_z_90_15pi->SetLineColor(5); | |
518 | fbr_z_90_00pi->Draw() | |
519 | fbr_z_90_05pi->Draw("same") | |
520 | fbr_z_90_15pi->Draw("same") | |
521 | fbr_z_90_10pi->Draw("same") | |
522 | ||
523 | // | |
524 | TF2 fbz_xy_0z("fbz_xy_0z","AliTPCExB::GetBz(sqrt(x^2+y^2),atan2(y,x),0)",-250,250,-250,250); | |
525 | fbz_xy_0z.SetNpy(100); | |
526 | fbz_xy_0z.SetNpx(100); | |
527 | fbz_xy_0z->Draw("colz"); | |
528 | // | |
529 | TF2 fbz_xy_250z("fbz_xy_250z","AliTPCExB::GetBz(sqrt(x^2+y^2),atan2(y,x),250)",-250,250,-250,250); | |
530 | fbz_xy_250z.SetNpy(100); | |
531 | fbz_xy_250z.SetNpx(100) | |
532 | fbz_xy_250z->Draw("colz"); | |
533 | // | |
534 | TF2 fbz_xy_m250z("fbz_xy_m250z","AliTPCExB::GetBz(sqrt(x^2+y^2),atan2(y,x),-250)",-250,250,-250,250); | |
535 | fbz_xy_m250z.SetNpy(100); | |
536 | fbz_xy_m250z.SetNpx(100) | |
537 | fbz_xy_m250z->Draw("colz"); | |
538 | // | |
539 | ||
540 | ||
541 | ||
542 | ||
543 | ||
544 | */ | |
545 | ||
546 |