12 |
extern "C" { |
extern "C" { |
13 |
void dotrack_(int*, double*, double*, double*, double*, int*); |
void dotrack_(int*, double*, double*, double*, double*, int*); |
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void dotrack2_(int*, double*, double*, double*, double*,double*, double*, double*,int*); |
void dotrack2_(int*, double*, double*, double*, double*,double*, double*, double*,int*); |
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int readb_(const char*); |
// int readb_(const char*); |
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int readb_(); |
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void mini2_(int*,int*,int*); |
void mini2_(int*,int*,int*); |
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void guess_(); |
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} |
} |
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//-------------------------------------- |
//-------------------------------------- |
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// |
// |
22 |
// |
// |
23 |
//-------------------------------------- |
//-------------------------------------- |
24 |
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/** |
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* Evaluates the trajectory in the apparatus associated to the track. |
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* It integrates the equations of motion in the magnetic field. The magnetic field should be previously loaded ( by calling TrkLevel2::LoadField() ), otherwise an error message is returned. |
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* @param t pointer to an object of the class Trajectory, |
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* which z coordinates should be previously initialized by calling the proper constructor ( Trajectory::Trajectory(int n, float* zin) ). |
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* @return error flag. |
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*/ |
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int Trajectory::DoTrack2(float* al){ |
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|
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double *dxout = new double[t->npoint]; |
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double *dyout = new double[t->npoint]; |
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double *dthxout = new double[t->npoint]; |
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double *dthyout = new double[t->npoint]; |
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double *dtlout = new double[t->npoint]; |
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double *dzin = new double[t->npoint]; |
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double dal[5]; |
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int ifail = 0; |
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for (int i=0; i<5; i++) dal[i] = (double)al[i]; |
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for (int i=0; i<t->npoint; i++) dzin[i] = (double)z[i]; |
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dotrack2_(&(t->npoint),dzin,dxout,dyout,dthxout,dthyout,dtlout,dal,&ifail); |
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48 |
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for (int i=0; i<t->npoint; i++){ |
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x[i] = (float)*dxout++; |
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y[i] = (float)*dyout++; |
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thx[i] = (float)*dthxout++; |
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thy[i] = (float)*dthyout++; |
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tl[i] = (float)*dtlout++; |
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} |
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56 |
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return ifail; |
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}; |
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//--------------------------------------------- |
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//--------------------------------------------- |
60 |
TrkTrack::TrkTrack(){ |
TrkTrack::TrkTrack(){ |
61 |
seqno = -1; |
seqno = -1; |
62 |
image = -1; |
image = -1; |
286 |
/** |
/** |
287 |
* Load the magnetic field |
* Load the magnetic field |
288 |
*/ |
*/ |
289 |
void TrkTrack::LoadField(TString s){ |
void TrkTrack::LoadField(TString path){ |
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readb_(s.Data()); |
|
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strcpy(path_.path,path.Data()); |
292 |
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path_.pathlen = path.Length(); |
293 |
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path_.error = 0; |
294 |
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readb_(); |
295 |
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|
296 |
}; |
}; |
297 |
/** |
/** |
298 |
* Tracking method. It calls F77 mini routine. |
* Tracking method. It calls F77 mini routine. |
299 |
*/ |
*/ |
300 |
void TrkTrack::Fit(double pfixed, int& fail, int iprint){ |
void TrkTrack::Fit(double pfixed, int& fail, int iprint){ |
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302 |
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float al_ini[] = {0.,0.,0.,0.,0.}; |
303 |
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|
304 |
extern cMini2track track_; |
extern cMini2track track_; |
305 |
fail = 0; |
fail = 0; |
306 |
// extern cMini2fitinfo fit_info_; |
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// extern void mini_2_(int*,int*); |
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// track_.xm[0]=1.0; |
|
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for(int i=0; i<6; i++) track_.xm[i]=xm[i]; |
for(int i=0; i<6; i++) track_.xm[i]=xm[i]; |
308 |
for(int i=0; i<6; i++) track_.ym[i]=ym[i]; |
for(int i=0; i<6; i++) track_.ym[i]=ym[i]; |
309 |
for(int i=0; i<6; i++) track_.zm[i]=zm[i]; |
for(int i=0; i<6; i++) track_.zm[i]=zm[i]; |
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for(int i=0; i<6; i++) track_.resy[i]=resy[i]; |
for(int i=0; i<6; i++) track_.resy[i]=resy[i]; |
312 |
for(int i=0; i<6; i++) track_.xgood[i]=xgood[i]; |
for(int i=0; i<6; i++) track_.xgood[i]=xgood[i]; |
313 |
for(int i=0; i<6; i++) track_.ygood[i]=ygood[i]; |
for(int i=0; i<6; i++) track_.ygood[i]=ygood[i]; |
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|
315 |
// initial guess of "al" with linear fit |
// initial guess of "al" with linear fit |
316 |
if(al[0]==-9999.&&al[1]==-9999.&&al[2]==-9999.&&al[3]==-9999.&&al[4]==-9999.){ |
// if(al[0]==-9999.&&al[1]==-9999.&&al[2]==-9999.&&al[3]==-9999.&&al[4]==-9999.){ |
317 |
double szz=0., szx=0., szy=0., ssx=0., ssy=0., sz=0., s1=0.; |
// cout << "initial guess "<<endl; |
318 |
double det, ax, ay, bx, by; |
// double szz=0., szx=0., szy=0., ssx=0., ssy=0., sz=0., s1=0.; |
319 |
for(int i=0; i<NPLANE; i++) { |
// double det, ax, ay, bx, by; |
320 |
szz=szz+zm[i]*zm[i]; |
// for(int i=0; i<NPLANE; i++) { |
321 |
szx=szx+zm[i]*xm[i]; |
// szz=szz+zm[i]*zm[i]; |
322 |
szy=szy+zm[i]*ym[i]; |
// szx=szx+zm[i]*xm[i]; |
323 |
ssx=ssx+xm[i]; |
// szy=szy+zm[i]*ym[i]; |
324 |
ssy=ssy+ym[i]; |
// ssx=ssx+xm[i]; |
325 |
sz=sz+zm[i]; |
// ssy=ssy+ym[i]; |
326 |
s1=s1+1.; |
// sz=sz+zm[i]; |
327 |
} |
// s1=s1+1.; |
328 |
det=szz*s1-sz*sz; |
// } |
329 |
ax=(szx*s1-sz*ssx)/det; |
// det=szz*s1-sz*sz; |
330 |
bx=(szz*ssx-szx*sz)/det; |
// ax=(szx*s1-sz*ssx)/det; |
331 |
ay=(szy*s1-sz*ssy)/det; |
// bx=(szz*ssx-szx*sz)/det; |
332 |
by=(szz*ssy-szy*sz)/det; |
// ay=(szy*s1-sz*ssy)/det; |
333 |
al[0]=ax*23.5+bx; // ZINI = 23.5 !!! it should be the same parameter in all codes |
// by=(szz*ssy-szy*sz)/det; |
334 |
al[1]=ay*23.5+by; // " |
// al[0]=ax*23.5+bx; // ZINI = 23.5 !!! it should be the same parameter in all codes |
335 |
al[2]= sqrt(pow(ax,2)+pow(ay,2))/ sqrt(pow(ax,2)+pow(ay,2)+1.); |
// al[1]=ay*23.5+by; // " |
336 |
al[3]=0.; |
// al[2]= sqrt(pow(ax,2)+pow(ay,2))/ sqrt(pow(ax,2)+pow(ay,2)+1.); |
337 |
if( (ax!=0.)||(ay!=0.) ) { |
// al[3]=0.; |
338 |
al[3]= asin(ay/ sqrt(pow(ax,2)+pow(ay,2))); |
// if( (ax!=0.)||(ay!=0.) ) { |
339 |
if(ax<0.) al[3]=acos(-1.)-al[3]; |
// al[3]= asin(ay/ sqrt(pow(ax,2)+pow(ay,2))); |
340 |
} |
// if(ax<0.) al[3]=acos(-1.)-al[3]; |
341 |
al[4]=0.; |
// } |
342 |
} |
// al[4]=0.; |
343 |
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// } |
344 |
// end guess |
// end guess |
345 |
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|
346 |
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for(int i=0; i<5; i++) track_.al[i]=al[i]; |
347 |
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track_.zini = 23.5; |
348 |
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// ZINI = 23.5 !!! it should be the same parameter in all codes |
349 |
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|
350 |
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if(al[0]==-9999.&&al[1]==-9999.&&al[2]==-9999.&&al[3]==-9999.&&al[4]==-9999.)guess_(); |
351 |
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|
352 |
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// --------------------- free momentum |
353 |
if(pfixed==0.) { |
if(pfixed==0.) { |
354 |
al[4]=0.; // free momentum |
// al[4]=0.; // free momentum |
355 |
track_.pfixed=0.; // " |
track_.pfixed=0.; // " |
356 |
} |
} |
357 |
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// --------------------- fixed momentum |
358 |
if(pfixed!=0.) { |
if(pfixed!=0.) { |
359 |
al[4]=1./pfixed; // to fix the momentum |
al[4]=1./pfixed; // to fix the momentum |
360 |
track_.pfixed=pfixed; // " |
track_.pfixed=pfixed; // " |
361 |
} |
} |
362 |
track_.zini = 23.5; // ZINI = 23.5 !!! it should be the same parameter in all codes |
|
363 |
for(int i=0; i<5; i++) track_.al[i]=al[i]; |
// store temporarily the initial guess |
364 |
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for(int i=0; i<5; i++) al_ini[i]=track_.al[i]; |
365 |
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|
366 |
|
|
367 |
int istep=0; |
int istep=0; |
368 |
int ifail=0; |
int ifail=0; |
369 |
mini2_(&istep,&ifail, &iprint); |
mini2_(&istep,&ifail, &iprint); |
372 |
fail = 1; |
fail = 1; |
373 |
// return; |
// return; |
374 |
} |
} |
375 |
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|
376 |
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|
377 |
// cout << endl << "eta ===> " << track_.al[4] << endl; |
// cout << endl << "eta ===> " << track_.al[4] << endl; |
378 |
|
|
387 |
for(int i=0; i<5; i++) { |
for(int i=0; i<5; i++) { |
388 |
for(int j=0; j<5; j++) coval[i][j]=track_.cov[i][j]; |
for(int j=0; j<5; j++) coval[i][j]=track_.cov[i][j]; |
389 |
} |
} |
390 |
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|
391 |
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if(fail){ |
392 |
|
cout << " >>>> fit failed >>>> drawing initial par"<<endl; |
393 |
|
for(int i=0; i<5; i++) al[i]=al_ini[i]; |
394 |
|
} |
395 |
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|
396 |
}; |
}; |
397 |
/* |
/* |
398 |
* Reset the parameters fit |
* Reset the fit parameters |
399 |
*/ |
*/ |
400 |
void TrkTrack::FitReset(){ |
void TrkTrack::FitReset(){ |
401 |
for(int i=0; i<5; i++) al[i]=-9999.; |
for(int i=0; i<5; i++) al[i]=-9999.; |
979 |
* Loads the magnetic field. |
* Loads the magnetic field. |
980 |
* @param s Path of the magnetic-field files. |
* @param s Path of the magnetic-field files. |
981 |
*/ |
*/ |
982 |
void TrkLevel2::LoadField(TString s){ |
void TrkLevel2::LoadField(TString path){ |
983 |
readb_(s.Data()); |
// |
984 |
|
strcpy(path_.path,path.Data()); |
985 |
|
path_.pathlen = path.Length(); |
986 |
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path_.error = 0; |
987 |
|
readb_(); |
988 |
|
// |
989 |
}; |
}; |
990 |
//-------------------------------------- |
//-------------------------------------- |
991 |
// |
// |