source: sans/Dev/trunk/NCNR_User_Procedures/Reduction/SANS/NCNR_Utils.ipf @ 811

Last change on this file since 811 was 811, checked in by srkline, 11 years ago

Fixed comparison bug in NSORT / MRED / CatTable?

Fixed bug in writing of RAW VAX files (only used in simulation) that incorrectly converted 32 bit integer to 16 bit integer before compression, leading to negative counts for n ~> 37000.

Added source aperture and gravity to the MC simulation for a realistic beam profile.

File size: 55.9 KB
Line 
1#pragma rtGlobals=1             // Use modern global access method.
2#pragma version=5.0
3#pragma IgorVersion=6.1
4
5// this file contains globals and functions that are specific to a
6// particular facility or data file format
7// branched out 29MAR07 - SRK
8//
9// functions are either labeled with the procedure file that calls them,
10// or noted that they are local to this file
11
12
13// initializes globals that are specific to a particular facility
14// - number of XY pixels
15// - pixexl resolution [cm]
16// - detector deadtime constant [s]
17//
18// called by Initialize.ipf
19//
20Function InitFacilityGlobals()
21
22        //Detector -specific globals
23        Variable/G root:myGlobals:gNPixelsX=128
24        Variable/G root:myGlobals:gNPixelsY=128
25       
26        // as of Jan2008, detector pixel sizes are read directly from the file header, so they MUST
27        // be set correctly in instr.cfg
28        Variable/G root:myGlobals:PixelResNG3_ILL = 1.0         //pixel resolution in cm
29        Variable/G root:myGlobals:PixelResNG5_ILL = 1.0
30        Variable/G root:myGlobals:PixelResNG7_ILL = 1.0
31        Variable/G root:myGlobals:PixelResNG3_ORNL = 0.5
32        Variable/G root:myGlobals:PixelResNG5_ORNL = 0.5
33        Variable/G root:myGlobals:PixelResNG7_ORNL = 0.5
34        Variable/G root:myGlobals:PixelResDefault = 0.5
35       
36        Variable/G root:myGlobals:DeadtimeNG3_ILL = 3.0e-6              //deadtime in seconds
37        Variable/G root:myGlobals:DeadtimeNG5_ILL = 3.0e-6
38        Variable/G root:myGlobals:DeadtimeNG7_ILL = 3.0e-6
39        Variable/G root:myGlobals:DeadtimeNG3_ORNL_VAX = 3.4e-6         //pre - 23-JUL-2009 used VAX
40        Variable/G root:myGlobals:DeadtimeNG3_ORNL_ICE = 1.5e-6         //post - 23-JUL-2009 used ICE
41        Variable/G root:myGlobals:DeadtimeNG5_ORNL = 0.6e-6                     //as of 9 MAY 2002
42        Variable/G root:myGlobals:DeadtimeNG7_ORNL_VAX = 3.4e-6         //pre 25-FEB-2010 used VAX
43        Variable/G root:myGlobals:DeadtimeNG7_ORNL_ICE = 2.3e-6         //post 25-FEB-2010 used ICE
44        Variable/G root:myGlobals:DeadtimeDefault = 3.4e-6
45       
46        //new 11APR07
47        Variable/G root:myGlobals:BeamstopXTol = -8                     // (cm) is BS Xpos is -5 cm or less, it's a trans measurement
48        // sample aperture offset is NOT stored in the VAX header, but it should be
49        // - when it is, remove the global and write an accessor AND make a place for
50        // it in the RealsRead
51        Variable/G root:myGlobals:apOff = 5.0                           // (cm) distance from sample aperture to sample position
52
53End
54
55
56//**********************
57// Resolution calculation - used by the averaging routines
58// to calculate the resolution function at each q-value
59// - the return value is not used
60//
61// equivalent to John's routine on the VAX Q_SIGMA_AVE.FOR
62// Incorporates eqn. 3-15 from J. Appl. Cryst. (1995) v. 28 p105-114
63//
64// - 21 MAR 07 uses projected BS diameter on the detector
65// - APR 07 still need to add resolution with lenses. currently there is no flag in the
66//          raw data header to indicate the presence of lenses.
67//
68// - Aug 07 - added input to switch calculation based on lenses (==1 if in)
69//
70// - called by CircSectAvg.ipf and RectAnnulAvg.ipf
71//
72// passed values are read from RealsRead
73// except DDet and apOff, which are set from globals before passing
74//
75//
76Function/S getResolution(inQ,lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses,SigmaQ,QBar,fSubS)
77        Variable inQ, lambda, lambdaWidth, DDet, apOff, S1, S2, L1, L2, BS, del_r,usingLenses
78        Variable &fSubS, &QBar, &SigmaQ         //these are the output quantities at the input Q value
79       
80        //lots of calculation variables
81        Variable a2, q_small, lp, v_lambda, v_b, v_d, vz, yg, v_g
82        Variable r0, delta, inc_gamma, fr, fv, rmd, v_r1, rm, v_r
83
84        //Constants
85        Variable vz_1 = 3.956e5         //velocity [cm/s] of 1 A neutron
86        Variable g = 981.0                              //gravity acceleration [cm/s^2]
87
88        String results
89        results ="Failure"
90
91        S1 *= 0.5*0.1                   //convert to radius and [cm]
92        S2 *= 0.5*0.1
93
94        L1 *= 100.0                     // [cm]
95        L1 -= apOff                             //correct the distance
96
97        L2 *= 100.0
98        L2 += apOff
99        del_r *= 0.1                            //width of annulus, convert mm to [cm]
100       
101        BS *= 0.5*0.1                   //nominal BS diameter passed in, convert to radius and [cm]
102        // 21 MAR 07 SRK - use the projected BS diameter, based on a point sample aperture
103        Variable LB
104        LB = 20.1 + 1.61*BS                     //distance in cm from beamstop to anode plane (empirical)
105        BS = bs + bs*lb/(l2-lb)         //adjusted diameter of shadow from parallax
106       
107        //Start resolution calculation
108        a2 = S1*L2/L1 + S2*(L1+L2)/L1
109        q_small = 2.0*Pi*(BS-a2)*(1.0-lambdaWidth)/(lambda*L2)
110        lp = 1.0/( 1.0/L1 + 1.0/L2)
111
112        v_lambda = lambdaWidth^2/6.0
113       
114//      if(usingLenses==1)                      //SRK 2007
115        if(usingLenses != 0)                    //SRK 2008 allows for the possibility of different numbers of lenses in header
116                v_b = 0.25*(S1*L2/L1)^2 +0.25*(2/3)*(lambdaWidth/lambda)^2*(S2*L2/lp)^2         //correction to 2nd term
117        else
118                v_b = 0.25*(S1*L2/L1)^2 +0.25*(S2*L2/lp)^2              //original form
119        endif
120       
121        v_d = (DDet/2.3548)^2 + del_r^2/12.0
122        vz = vz_1 / lambda
123        yg = 0.5*g*L2*(L1+L2)/vz^2
124        v_g = 2.0*(2.0*yg^2*v_lambda)                                   //factor of 2 correction, B. Hammouda, 2007
125
126        r0 = L2*tan(2.0*asin(lambda*inQ/(4.0*Pi) ))
127        delta = 0.5*(BS - r0)^2/v_d
128
129        if (r0 < BS)
130                inc_gamma=exp(gammln(1.5))*(1-gammp(1.5,delta))
131        else
132                inc_gamma=exp(gammln(1.5))*(1+gammp(1.5,delta))
133        endif
134
135        fSubS = 0.5*(1.0+erf( (r0-BS)/sqrt(2.0*v_d) ) )
136        if (fSubS <= 0.0)
137                fSubS = 1.e-10
138        endif
139        fr = 1.0 + sqrt(v_d)*exp(-1.0*delta) /(r0*fSubS*sqrt(2.0*Pi))
140        fv = inc_gamma/(fSubS*sqrt(Pi)) - r0^2*(fr-1.0)^2/v_d
141
142        rmd = fr*r0
143        v_r1 = v_b + fv*v_d +v_g
144
145        rm = rmd + 0.5*v_r1/rmd
146        v_r = v_r1 - 0.5*(v_r1/rmd)^2
147        if (v_r < 0.0)
148                v_r = 0.0
149        endif
150        QBar = (4.0*Pi/lambda)*sin(0.5*atan(rm/L2))
151        SigmaQ = QBar*sqrt(v_r/rmd^2 +v_lambda)
152
153
154// more readable method for calculating the variance in Q
155// EXCEPT - this is calculated for Qo, NOT qBar
156// (otherwise, they are nearly equivalent, except for close to the beam stop)
157//      Variable kap,a_val,a_val_l2,m_h
158//      g = 981.0                               //gravity acceleration [cm/s^2]
159//      m_h     = 252.8                 // m/h [=] s/cm^2
160//     
161//      kap = 2*pi/lambda
162//      a_val = L2*(L1+L2)*g/2*(m_h)^2
163//      a_val_L2 = a_val/L2*1e-16               //convert 1/cm^2 to 1/A^2
164//
165//      sigmaQ = 0
166//      sigmaQ = 3*(S1/L1)^2
167//     
168//      if(usingLenses != 0)
169//              sigmaQ += 2*(S2/lp)^2*(lambdaWidth)^2   //2nd term w/ lenses
170//      else   
171//              sigmaQ += 2*(S2/lp)^2                                           //2nd term w/ no lenses
172//      endif
173//     
174//      sigmaQ += (del_r/L2)^2
175//      sigmaQ += 2*(r0/L2)^2*(lambdaWidth)^2
176//      sigmaQ += 4*(a_val_l2)^2*lambda^4*(lambdaWidth)^2
177//     
178//      sigmaQ *= kap^2/12
179//      sigmaQ = sqrt(sigmaQ)
180
181
182        results = "success"
183        Return results
184End
185
186
187//
188//**********************
189// 2D resolution function calculation - ***NOT*** in terms of X and Y
190// but written in terms of Parallel and perpendicular to the Q vector at each point
191//
192// -- it must be written this way since the 2D function is an ellipse with its major
193// axis pointing in the direction of Q_parallel. Hence there is no way to properly define the
194// elliptical gaussian in terms of sigmaX and sigmaY
195//
196// based on notes from David Mildner, 2008
197//
198//
199// - 21 MAR 07 uses projected BS diameter on the detector
200// - APR 07 still need to add resolution with lenses. currently there is no flag in the
201//          raw data header to indicate the presence of lenses.
202//
203// - Aug 07 - added input to switch calculation based on lenses (==1 if in)
204//
205// passed values are read from RealsRead
206// except DDet and apOff, which are set from globals before passing
207//
208// phi is the azimuthal angle, CCW from +x axis
209// r_dist is the real-space distance from ctr of detector to QxQy pixel location
210//
211// MAR 2011 - removed the del_r terms, they don't apply since no bining is done to the 2D data
212//
213Function/S get2DResolution(inQ,phi,lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses,r_dist,SigmaQX,SigmaQY,fSubS)
214        Variable inQ, phi,lambda, lambdaWidth, DDet, apOff, S1, S2, L1, L2, BS, del_r,usingLenses,r_dist
215        Variable &SigmaQX,&SigmaQY,&fSubS               //these are the output quantities at the input Q value
216       
217        //lots of calculation variables
218        Variable a2, lp, v_lambda, v_b, v_d, vz, yg, v_g
219        Variable r0, delta, inc_gamma, fr, fv, rmd, v_r1, rm, v_r
220
221        //Constants
222        Variable vz_1 = 3.956e5         //velocity [cm/s] of 1 A neutron
223        Variable g = 981.0                              //gravity acceleration [cm/s^2]
224        Variable m_h    = 252.8                 // m/h [=] s/cm^2
225
226        String results
227        results ="Failure"
228
229        S1 *= 0.5*0.1                   //convert to radius and [cm]
230        S2 *= 0.5*0.1
231
232        L1 *= 100.0                     // [cm]
233        L1 -= apOff                             //correct the distance
234
235        L2 *= 100.0
236        L2 += apOff
237        del_r *= 0.1                            //width of annulus, convert mm to [cm]
238       
239        BS *= 0.5*0.1                   //nominal BS diameter passed in, convert to radius and [cm]
240        // 21 MAR 07 SRK - use the projected BS diameter, based on a point sample aperture
241        Variable LB
242        LB = 20.1 + 1.61*BS                     //distance in cm from beamstop to anode plane (empirical)
243        BS = bs + bs*lb/(l2-lb)         //adjusted diameter of shadow from parallax
244       
245        //Start resolution calculation
246        a2 = S1*L2/L1 + S2*(L1+L2)/L1
247        lp = 1.0/( 1.0/L1 + 1.0/L2)
248
249        v_lambda = lambdaWidth^2/6.0
250       
251//      if(usingLenses==1)                      //SRK 2007
252        if(usingLenses != 0)                    //SRK 2008 allows for the possibility of different numbers of lenses in header
253                v_b = 0.25*(S1*L2/L1)^2 +0.25*(2/3)*(lambdaWidth/lambda)^2*(S2*L2/lp)^2         //correction to 2nd term
254        else
255                v_b = 0.25*(S1*L2/L1)^2 +0.25*(S2*L2/lp)^2              //original form
256        endif
257       
258        v_d = (DDet/2.3548)^2 + del_r^2/12.0
259        vz = vz_1 / lambda
260        yg = 0.5*g*L2*(L1+L2)/vz^2
261        v_g = 2.0*(2.0*yg^2*v_lambda)                                   //factor of 2 correction, B. Hammouda, 2007
262
263        r0 = L2*tan(2.0*asin(lambda*inQ/(4.0*Pi) ))
264        delta = 0.5*(BS - r0)^2/v_d
265
266        if (r0 < BS)
267                inc_gamma=exp(gammln(1.5))*(1-gammp(1.5,delta))
268        else
269                inc_gamma=exp(gammln(1.5))*(1+gammp(1.5,delta))
270        endif
271
272        fSubS = 0.5*(1.0+erf( (r0-BS)/sqrt(2.0*v_d) ) )
273        if (fSubS <= 0.0)
274                fSubS = 1.e-10
275        endif
276//      fr = 1.0 + sqrt(v_d)*exp(-1.0*delta) /(r0*fSubS*sqrt(2.0*Pi))
277//      fv = inc_gamma/(fSubS*sqrt(Pi)) - r0^2*(fr-1.0)^2/v_d
278//
279//      rmd = fr*r0
280//      v_r1 = v_b + fv*v_d +v_g
281//
282//      rm = rmd + 0.5*v_r1/rmd
283//      v_r = v_r1 - 0.5*(v_r1/rmd)^2
284//      if (v_r < 0.0)
285//              v_r = 0.0
286//      endif
287
288        Variable kap,a_val,a_val_L2,proj_DDet
289       
290        kap = 2*pi/lambda
291        a_val = L2*(L1+L2)*g/2*(m_h)^2
292        a_val_L2 = a_val/L2*1e-16               //convert 1/cm^2 to 1/A^2
293
294
295///////// in terms of Q_parallel ("x") and Q_perp ("y") - this works, since parallel is in the direction of Q and I
296// can calculate that from the QxQy (I just need the projection)
297
298
299// for test case with no gravity, set a_val = 0
300// note that gravity has no wavelength dependence. the lambda^4 cancels out.
301//
302//      a_val = 0
303//      a_val_l2 = 0
304
305        // the detector pixel is square, so correct for phi
306        proj_DDet = DDet*cos(phi) + DDet*sin(phi)
307       
308        // this is really sigma_Q_parallel
309        SigmaQX = kap*kap/12 * (3*(S1/L1)^2 + 3*(S2/LP)^2 + (proj_DDet/L2)^2 + (sin(phi))^2*8*(a_val_L2)^2*lambda^4*lambdaWidth^2)
310        SigmaQX += inQ*inQ*v_lambda
311
312        //this is really sigma_Q_perpendicular
313        proj_DDet = DDet*sin(phi) + DDet*cos(phi)               //not necessary, since DDet is the same in both X and Y directions
314
315        SigmaQY = kap*kap/12 * (3*(S1/L1)^2 + 3*(S2/LP)^2 + (proj_DDet/L2)^2 + (cos(phi))^2*8*(a_val_L2)^2*lambda^4*lambdaWidth^2)
316       
317        SigmaQX = sqrt(SigmaQX)
318        SigmaQy = sqrt(SigmaQY)
319       
320
321/////////////////////////////////////////////////
322/////   
323//      ////// this is all experimental, inclusion of gravity effect into the parallel component
324////    //
325//      Variable yg_d,acc,sdd,ssd,lambda0,DL_L,sig_l
326//      Variable var_qlx,var_qly,var_ql,qx,qy,sig_perp,sig_para
327//      G = 981.  //!   ACCELERATION OF GRAVITY, CM/SEC^2
328//      acc = vz_1              //      3.956E5 //!     CONVERT WAVELENGTH TO VELOCITY CM/SEC
329//      SDD = L2                //1317
330//      SSD = L1                //1627          //cm
331//      lambda0 = lambda                //              15
332//      DL_L = lambdaWidth              //0.236
333//      SIG_L = DL_L/sqrt(6)
334//      YG_d = -0.5*G*SDD*(SSD+SDD)*(LAMBDA0/acc)^2
335/////// Print "DISTANCE BEAM FALLS DUE TO GRAVITY (CM) = ",YG
336//     
337//      sig_perp = kap*kap/12 * (3*(S1/L1)^2 + 3*(S2/LP)^2 + (proj_DDet/L2)^2)
338//      sig_perp = sqrt(sig_perp)
339//     
340//     
341//      FindQxQy(inQ,phi,qx,qy)
342//     
343//      VAR_QLY = SIG_L^2 * (QY+4*PI*YG_d/(SDD*LAMBDA0))^2
344//      VAR_QLX = (SIG_L*QX)^2
345//      VAR_QL = VAR_QLY + VAR_QLX  //! WAVELENGTH CONTRIBUTION TO VARIANCE
346//      sig_para = (sig_perp^2 + VAR_QL)^0.5
347//     
348/////// return values PBR       
349//      SigmaQX = sig_para
350//      SigmaQy = sig_perp
351//     
352////// 
353       
354        results = "success"
355        Return results
356End
357
358
359
360
361//Utility function that returns the detector resolution (in cm)
362//Global values are set in the Initialize procedure
363//
364//
365// - called by CircSectAvg.ipf, RectAnnulAvg.ipf, and ProtocolAsPanel.ipf
366//
367// fileStr is passed as TextRead[3]
368// detStr is passed as TextRead[9]
369//
370// *** as of Jan 2008, depricated. Now detector pixel sizes are read from the file header
371// rw[10] = x size (mm); rw[13] = y size (mm)
372//
373Function xDetectorPixelResolution(fileStr,detStr)
374        String fileStr,detStr
375       
376        Variable DDet
377        String instr=fileStr[1,3]       //filestr is "[NGnSANSn] " or "[NGnSANSnn]" (11 characters total)
378       
379        NVAR PixelResNG3_ILL = root:myGlobals:PixelResNG3_ILL           //pixel resolution in cm
380        NVAR PixelResNG5_ILL = root:myGlobals:PixelResNG5_ILL
381        NVAR PixelResNG7_ILL = root:myGlobals:PixelResNG7_ILL
382        NVAR PixelResNG3_ORNL = root:myGlobals:PixelResNG3_ORNL
383        NVAR PixelResNG5_ORNL = root:myGlobals:PixelResNG5_ORNL
384        NVAR PixelResNG7_ORNL = root:myGlobals:PixelResNG7_ORNL
385        NVAR PixelResDefault = root:myGlobals:PixelResDefault
386       
387        strswitch(instr)
388                case "NG3":
389                        if(cmpstr(detStr, "ILL   ") == 0 )
390                                DDet= PixelResNG3_ILL
391                        else
392                                DDet = PixelResNG3_ORNL //detector is ordella-type
393                        endif
394                        break
395                case "NG5":
396                        if(cmpstr(detStr, "ILL   ") == 0 )
397                                DDet= PixelResNG5_ILL
398                        else
399                                DDet = PixelResNG5_ORNL //detector is ordella-type
400                        endif
401                        break
402                case "NG7":
403                        if(cmpstr(detStr, "ILL   ") == 0 )
404                                DDet= PixelResNG7_ILL
405                        else
406                                DDet = PixelResNG7_ORNL //detector is ordella-type
407                        endif
408                        break
409                default:                                                       
410                        //return error?
411                        DDet = PixelResDefault  //0.5 cm, typical for new ORNL detectors
412        endswitch
413       
414        return(DDet)
415End
416
417//Utility function that returns the detector deadtime (in seconds)
418//Global values are set in the Initialize procedure
419//
420// - called by WorkFileUtils.ipf
421//
422// fileStr is passed as TextRead[3]
423// detStr is passed as TextRead[9]
424// dateAndTimeStr is passed as TextRead[1]
425//      --- if no date/time string is passed, ICE values are the default
426//
427// Due to the switch from VAX -> ICE, there were some hardware changes that led to
428// a change in the effective detector dead time. The dead time was re-measured by J. Barker
429// as follows:
430//      Instrument                              Date measured                           deadtime constant
431//      NG3                                                     DECEMBER 2009                           1.5 microseconds
432//      NG7                                                     APRIL2010                                       2.3 microseconds
433//
434// The day of the switch to ICE on NG7 was 25-FEB-2010 (per J. Krzywon)
435// The day of the switch to ICE on NG3 was 23-JUL-2009 (per C. Gagnon)
436//
437// so any data after these dates is to use the new dead time constant. The switch is made on the
438// data collection date.
439//
440//
441Function DetectorDeadtime(fileStr,detStr,[dateAndTimeStr])
442        String fileStr,detStr,dateAndTimeStr
443       
444        Variable deadtime
445        String instr=fileStr[1,3]       //filestr is "[NGnSANSn] " or "[NGnSANSnn]" (11 characters total)
446       
447        NVAR DeadtimeNG3_ILL = root:myGlobals:DeadtimeNG3_ILL           //pixel resolution in cm
448        NVAR DeadtimeNG5_ILL = root:myGlobals:DeadtimeNG5_ILL
449        NVAR DeadtimeNG7_ILL = root:myGlobals:DeadtimeNG7_ILL
450        NVAR DeadtimeNG3_ORNL_VAX = root:myGlobals:DeadtimeNG3_ORNL_VAX
451        NVAR DeadtimeNG3_ORNL_ICE = root:myGlobals:DeadtimeNG3_ORNL_ICE
452        NVAR DeadtimeNG5_ORNL = root:myGlobals:DeadtimeNG5_ORNL
453        NVAR DeadtimeNG7_ORNL_VAX = root:myGlobals:DeadtimeNG7_ORNL_VAX
454        NVAR DeadtimeNG7_ORNL_ICE = root:myGlobals:DeadtimeNG7_ORNL_ICE
455        NVAR DeadtimeDefault = root:myGlobals:DeadtimeDefault
456       
457        // if no date string is passed, default to the ICE values
458        if(strlen(dateAndTimeStr)==0)
459                dateAndTimeStr = "01-JAN-2011"          //dummy date to force to ICE values
460        endif
461       
462       
463        Variable NG3_to_ICE = ConvertVAXDay2secs("23-JUL-2009")
464        Variable NG7_to_ICE = ConvertVAXDay2secs("25-FEB-2010")
465        Variable fileTime = ConvertVAXDay2secs(dateAndTimeStr)
466
467       
468        strswitch(instr)
469                case "NG3":
470                        if(cmpstr(detStr, "ILL   ") == 0 )
471                                deadtime= DeadtimeNG3_ILL
472                        else
473                                if(fileTime > NG3_to_ICE)
474                                        deadtime = DeadtimeNG3_ORNL_ICE //detector is ordella-type, using ICE hardware
475                                else
476                                        deadtime = DeadtimeNG3_ORNL_VAX //detector is ordella-type
477                                endif
478                        endif
479                        break
480                case "NG5":
481                        if(cmpstr(detStr, "ILL   ") == 0 )
482                                deadtime= DeadtimeNG5_ILL
483                        else
484                                deadtime = DeadtimeNG5_ORNL     //detector is ordella-type
485                        endif
486                        break
487                case "NG7":
488                        if(cmpstr(detStr, "ILL   ") == 0 )
489                                deadtime= DeadtimeNG7_ILL
490                        else
491                                if(fileTime > NG7_to_ICE)
492                                        deadtime = DeadtimeNG7_ORNL_ICE //detector is ordella-type, using ICE hardware
493                                else
494                                        deadtime = DeadtimeNG7_ORNL_VAX //detector is ordella-type
495                                endif
496                        endif
497                        break
498                default:                                                       
499                        //return error?
500                        deadtime = DeadtimeDefault      //1e-6 seconds, typical for new ORNL detectors
501        endswitch
502       
503        return(deadtime)
504End
505
506// converts ONLY DD-MON-YYYY portion of the data collection time
507// to a number of seconds from midnight on 1/1/1904, as Igor likes to do
508//
509// dateAndTime is the full string of "dd-mon-yyyy hh:mm:ss" as returned by the function
510// getFileCreationDate(file)
511//
512Function ConvertVAXDay2secs(dateAndTime)
513        string dateAndTime
514       
515        Variable day,yr,mon,time_secs
516        string monStr
517
518        sscanf dateandtime,"%d-%3s-%4d",day,monStr,yr
519        mon = monStr2num(monStr)
520//      print yr,mon,day
521        time_secs = date2secs(yr,mon,day)
522
523        return(time_secs)
524end
525
526// dd-mon-yyyy hh:mm:ss -> seconds
527// the VAX uses 24 hr time for hh
528//
529Function ConvertVAXDateTime2secs(dateAndTime)
530        string dateAndTime
531       
532        Variable day,yr,mon,hh,mm,ss,time_secs
533        string str,monStr
534       
535        str=dateandtime
536        sscanf str,"%d-%3s-%4d %d:%d:%d",day,monStr,yr,hh,mm,ss
537        mon = monStr2num(monStr)
538//      print yr,mon,day,hh,mm,ss
539        time_secs = date2secs(yr,mon,day)
540        time_secs += hh*3600 + mm*60 + ss
541
542
543        return(time_secs)
544end
545
546// takes a month string and returns the corresponding number
547//
548Function monStr2num(monStr)
549        String monStr
550       
551        String list=";JAN;FEB;MAR;APR;MAY;JUN;JUL;AUG;SEP;OCT;NOV;DEC;"
552        return(WhichListItem(monStr, list ,";"))
553end
554
555
556//make a three character string of the run number
557//Moved to facility utils
558Function/S RunDigitString(num)
559        Variable num
560       
561        String numStr=""
562        if(num<10)
563                numStr = "00"+num2str(num)
564        else
565                if(num<100)
566                        numStr = "0"+num2str(num)
567                else
568                        numStr = num2str(num)
569                Endif
570        Endif
571        //Print "numstr = ",numstr
572        return(numstr)
573End
574
575//given a filename of a SANS data filename of the form
576//TTTTTnnn.SAn_TTT_Txxx
577//returns the prefix "TTTTT" as some number of characters
578//returns "" as an invalid file prefix
579//
580// NCNR-specifc, does not really belong here - but it's a beta procedure used for the
581// Combine Files Panel
582//
583Function/S GetPrefixStrFromFile(item)
584        String item
585        String invalid = ""     //"" is not a valid run prefix, since it's text
586        Variable num=-1
587       
588        //find the "dot"
589        String runStr=""
590        Variable pos = strsearch(item,".",0)
591        if(pos == -1)
592                //"dot" not found
593                return (invalid)
594        else
595                //found, skip the three characters preceeding it
596                if (pos <=3)
597                        //not enough characters
598                        return (invalid)
599                else
600                        runStr = item[0,pos-4]
601                        return (runStr)
602                Endif
603        Endif
604End
605
606
607
608
609/////VAX filename/Run number parsing utilities
610//
611// a collection of uilities for processing vax filenames
612//and processing lists (especially for display in popup menus)
613//
614//required to correctly account for VAX supplied version numbers, which
615//may or may not be removed by the ftp utility
616//
617// - parses lists of run numbers into real filenames
618// - selects proper detector constants
619//
620//**************************
621//
622//given a filename of a SANS data filename of the form
623//TTTTTnnn.SAn_TTT_Txxx
624//returns the run number "nnn" as a number
625//returns -1 as an invalid file number
626//
627// called by several ipfs
628//
629//
630Function GetRunNumFromFile(item)
631        String item
632        Variable invalid = -1   //negative numbers are invalid
633        Variable num=-1
634       
635        //find the "dot"
636        String runStr=""
637        Variable pos = strsearch(item,".",0)
638        if(pos == -1)
639                //"dot" not found
640                return (invalid)
641        else
642                //found, get the three characters preceeding it
643                if (pos <=2)
644                        //not enough characters
645                        return (invalid)
646                else
647                        runStr = item[pos-3,pos-1]
648                        //convert to a number
649                        num = str2num(runStr)
650                        //if valid, return it
651                        if (num == NaN)
652                                //3 characters were not a number
653                                return (invalid)
654                        else
655                                //run was OK
656                                return (num)
657                        Endif
658                Endif
659        Endif
660End
661
662//given a filename of a SANS data filename of the form
663//TTTTTnnn.SAn_TTT_Txxx
664//returns the run number "nnn" as a STRING of THREE characters
665//returns "ABC" as an invalid file number
666//
667// local function to aid in locating files by run number
668//
669Function/S GetRunNumStrFromFile(item)
670        String item
671        String invalid = "ABC"  //"ABC" is not a valid run number, since it's text
672        Variable num=-1
673       
674        //find the "dot"
675        String runStr=""
676        Variable pos = strsearch(item,".",0)
677        if(pos == -1)
678                //"dot" not found
679                return (invalid)
680        else
681                //found, get the three characters preceeding it
682                if (pos <=2)
683                        //not enough characters
684                        return (invalid)
685                else
686                        runStr = item[pos-3,pos-1]
687                        return (runStr)
688                Endif
689        Endif
690End
691
692//returns a string containing the full path to the file containing the
693//run number "num". The null string is returned if no valid file can be found
694//the path "catPathName" used and is hard-wired, will abort if this path does not exist
695//the file returned will be a RAW SANS data file, other types of files are
696//filtered out.
697//
698// called by Buttons.ipf and Transmission.ipf, and locally by parsing routines
699//
700Function/S FindFileFromRunNumber(num)
701        Variable num
702       
703        String fullName="",partialName="",item=""
704        //get list of raw data files in folder that match "num" (add leading zeros)
705        if( (num>999) || (num<=0) )
706                //Print "error in  FindFileFromRunNumber(num), file number too large or too small"
707                Return ("")
708        Endif
709        //make a three character string of the run number
710        String numStr=""
711        if(num<10)
712                numStr = "00"+num2str(num)
713        else
714                if(num<100)
715                        numStr = "0"+num2str(num)
716                else
717                        numStr = num2str(num)
718                Endif
719        Endif
720        //Print "numstr = ",numstr
721       
722        //make sure that path exists
723        PathInfo catPathName
724        String path = S_path
725        if (V_flag == 0)
726                Abort "folder path does not exist - use Pick Path button"
727        Endif
728        String list="",newList="",testStr=""
729       
730        list = IndexedFile(catPathName,-1,"????")       //get all files in folder
731        //find (the) one with the number in the run # location in the name
732        Variable numItems,ii,runFound,isRAW
733        numItems = ItemsInList(list,";")                //get the new number of items in the list
734        ii=0
735        do
736                //parse through the list in this order:
737                // 1 - does item contain run number (as a string) "TTTTTnnn.SAn_XXX_Tyyy"
738                // 2 - exclude by isRaw? (to minimize disk access)
739                item = StringFromList(ii, list  ,";" )
740                if(strlen(item) != 0)
741                        //find the run number, if it exists as a three character string
742                        testStr = GetRunNumStrFromFile(item)
743                        runFound= cmpstr(numStr,testStr)        //compare the three character strings, 0 if equal
744                        if(runFound == 0)
745                                //the run Number was found
746                                //build valid filename
747                                partialName = FindValidFileName(item)
748                                if(strlen(partialName) != 0)            //non-null return from FindValidFileName()
749                                        fullName = path + partialName
750                                        //check if RAW, if so,this must be the file!
751                                        isRAW = CheckIfRawData(fullName)
752                                        if(isRaw)
753                                                //stop here
754                                                return(fullname)
755                                        Endif
756                                Endif
757                        Endif
758                Endif
759                ii+=1
760        while(ii<numItems)              //process all items in list
761        Return ("")     //null return if file not found in list
762End
763
764//function to test a binary file to see if it is a RAW binary SANS file
765//first checks the total bytes in the file (which for raw data is 33316 bytes)
766//**note that the "DIV" file will also show up as a raw file by the run field
767//should be listed in CAT/SHORT and in patch windows
768//
769//Function then checks the file fname (full path:file) for "RAW" run.type field
770//if not found, the data is not raw data and zero is returned
771//
772// called by many procedures (both external and local)
773//
774Function CheckIfRawData(fname)
775        String fname
776       
777        Variable refnum,totalBytes
778        String testStr=""
779       
780        Open/R/T="????TEXT" refNum as fname
781        if(strlen(s_filename) == 0)     //user cancel (/Z not used, so V_flag not set)
782                return(0)
783        endif
784       
785        //get the total number of bytes in the file
786        FStatus refNum
787        totalBytes = V_logEOF
788        //Print totalBytes
789        if(totalBytes < 100)
790                Close refNum
791                return(0)               //not a raw file
792        endif
793        FSetPos refNum,75
794        FReadLine/N=3 refNum,testStr
795        Close refNum
796       
797        if(totalBytes == 33316 && ( cmpstr(testStr,"RAW")==0 ||  cmpstr(testStr,"SIM")==0))
798                //true, is raw data file
799                Return(1)
800        else
801                //some other file
802                Return(0)
803        Endif
804End
805
806//function to check the header of a raw data file (full path specified by fname)
807//checks the field of the x-position of the beamstop during data collection
808//if the x-position is more negative (farther to the left) than xTol(input)
809//the the beamstop is "out" and the file is a transmission run and not a scattering run
810//xtol typically set at -5 (cm) - trans runs have bs(x) at -10 to -15 cm
811// function returns 1 if beamstop is out, 0 if beamstop is in
812//
813// tolerance is set as a global value "root:myGlobals:BeamstopXTol"
814//
815// called by Transmission.ipf, CatVSTable.ipf, NSORT.ipf
816//
817Function isTransFile(fName)
818        String fname
819       
820        Variable refnum,xpos
821        NVAR xTol = root:myGlobals:BeamstopXTol
822       
823        //pos = 369, read one real value
824       
825        SetDataFolder root:
826        String GBLoadStr="GBLoadWave/O/N=tempGBwave/T={2,2}/J=2/W=1/Q"
827        String strToExecute=""
828        // 1 R*4 value
829        strToExecute = GBLoadStr + "/S=368/U=1" + "\"" + fname + "\""
830        Execute strToExecute
831        Wave w=$"root:tempGBWave0"
832        xPos = w[0]
833        KillWaves/Z w
834        //Print "xPos = ",xpos
835       
836        if(xpos<=xTol)
837                //xpos is farther left (more negative) than xtol (currently -5 cm)
838                Return(1)
839        else
840                //some other file
841                Return(0)
842        Endif
843End
844
845
846//function to remove all spaces from names when searching for filenames
847//the filename (as saved) will never have interior spaces (TTTTTnnn_AB _Bnnn)
848//but the text field in the header WILL, if less than 3 characters were used for the
849//user's initials, and can have leading spaces if prefix was less than 5 characters
850//
851//returns a string identical to the original string, except with the interior spaces removed
852//
853// local function for file name manipulation
854//
855Function/S RemoveAllSpaces(str)
856        String str
857       
858        String tempstr = str
859        Variable ii,spc,len             //should never be more than 2 or 3 trailing spaces in a filename
860        ii=0
861        do
862                len = strlen(tempStr)
863                spc = strsearch(tempStr," ",0)          //is the last character a space?
864                if (spc == -1)
865                        break           //no more spaces found, get out
866                endif
867                str = tempstr
868                tempStr = str[0,(spc-1)] + str[(spc+1),(len-1)] //remove the space from the string
869        While(1)        //should never be more than 2 or 3
870       
871        If(strlen(tempStr) < 1)
872                tempStr = ""            //be sure to return a null string if problem found
873        Endif
874       
875        //Print strlen(tempstr)
876       
877        Return(tempStr)
878               
879End
880
881
882//Function attempts to find valid filename from partial name by checking for
883// the existence of the file on disk.
884// - checks as is
885// - adds ";vers" for possible VAX files
886// - strips spaces
887// - permutations of upper/lowercase
888//
889// added 11/99 - uppercase and lowercase versions of the file are tried, if necessary
890// since from marquee, the filename field (textread[0]) must be used, and can be a mix of
891// upper/lowercase letters, while the filename on the server (should) be all caps
892// now makes repeated calls to ValidFileString()
893//
894// returns a valid filename (No path prepended) or a null string
895//
896// called by any functions, both external and local
897//
898Function/S FindValidFilename(partialName)
899        String PartialName
900       
901        String retStr=""
902       
903        //try name with no changes - to allow for ABS files that have spaces in the names 12APR04
904        retStr = ValidFileString(partialName)
905        if(cmpstr(retStr,"") !=0)
906                //non-null return
907                return(retStr)
908        Endif
909       
910        //if the partial name is derived from the file header, there can be spaces at the beginning
911        //or in the middle of the filename - depending on the prefix and initials used
912        //
913        //remove any leading spaces from the name before starting
914        partialName = RemoveAllSpaces(partialName)
915       
916        //try name with no spaces
917        retStr = ValidFileString(partialName)
918        if(cmpstr(retStr,"") !=0)
919                //non-null return
920                return(retStr)
921        Endif
922       
923        //try all UPPERCASE
924        partialName = UpperStr(partialName)
925        retStr = ValidFileString(partialName)
926        if(cmpstr(retStr,"") !=0)
927                //non-null return
928                return(retStr)
929        Endif
930       
931        //try all lowercase (ret null if failure)
932        partialName = LowerStr(partialName)
933        retStr = ValidFileString(partialName)
934        if(cmpstr(retStr,"") !=0)
935                //non-null return
936                return(retStr)
937        else
938                return(retStr)
939        Endif
940End
941
942// Function checks for the existence of a file
943// partialName;vers (to account for VAX filenaming conventions)
944// The partial name is tried first with no version number
945//
946// *** the PATH is hard-wired to catPathName (which is assumed to exist)
947// version numers up to ;10 are tried
948// only the "name;vers" is returned if successful. The path is not prepended
949//
950// local function
951//
952Function/S ValidFileString(partialName)
953        String partialName
954       
955        String tempName = "",msg=""
956        Variable ii,refnum
957       
958        ii=0
959        do
960                if(ii==0)
961                        //first pass, try the partialName
962                        tempName = partialName
963                        Open/Z/R/T="????TEXT"/P=catPathName refnum tempName     //Does open file (/Z flag)
964                        if(V_flag == 0)
965                                //file exists
966                                Close refnum            //YES needed,
967                                break
968                        endif
969                else
970                        tempName = partialName + ";" + num2str(ii)
971                        Open/Z/R/T="????TEXT"/P=catPathName refnum tempName
972                        if(V_flag == 0)
973                                //file exists
974                                Close refnum
975                                break
976                        endif
977                Endif
978                ii+=1
979                //print "ii=",ii
980        while(ii<11)
981        //go get the selected bits of information, using tempName, which exists
982        if(ii>=11)
983                //msg = partialName + " not found. is version number > 11?"
984                //DoAlert 0, msg
985                //PathInfo catPathName
986                //Print S_Path
987                Return ("")             //use null string as error condition
988        Endif
989       
990        Return (tempName)
991End
992
993//returns a string containing filename (WITHOUT the ;vers)
994//the input string is a full path to the file (Mac-style, still works on Win in IGOR)
995//with the folders separated by colons
996//
997// called by MaskUtils.ipf, ProtocolAsPanel.ipf, WriteQIS.ipf
998//
999Function/S GetFileNameFromPathNoSemi(fullPath)
1000        String fullPath
1001       
1002        Variable offset1,offset2
1003        String filename=""
1004        //String PartialPath
1005        offset1 = 0
1006        do
1007                offset2 = StrSearch(fullPath, ":", offset1)
1008                if (offset2 == -1)                              // no more colons ?
1009                        fileName = FullPath[offset1,strlen(FullPath) ]
1010                        //PartialPath = FullPath[0, offset1-1]
1011                        break
1012                endif
1013                offset1 = offset2+1
1014        while (1)
1015       
1016        //remove version number from name, if it's there - format should be: filename;N
1017        filename =  StringFromList(0,filename,";")              //returns null if error
1018       
1019        Return filename
1020End
1021
1022//returns a string containing filename (INCLUDING the ;vers)
1023//the input string is a full path to the file (Mac-style, still works on Win in IGOR)
1024//with the folders separated by colons
1025//
1026// local, currently unused
1027//
1028Function/S GetFileNameFromPathKeepSemi(fullPath)
1029        String fullPath
1030       
1031        Variable offset1,offset2
1032        String filename
1033        //String PartialPath
1034        offset1 = 0
1035        do
1036                offset2 = StrSearch(fullPath, ":", offset1)
1037                if (offset2 == -1)                              // no more colons ?
1038                        fileName = FullPath[offset1,strlen(FullPath) ]
1039                        //PartialPath = FullPath[0, offset1-1]
1040                        break
1041                endif
1042                offset1 = offset2+1
1043        while (1)
1044       
1045        //keep version number from name, if it's there - format should be: filename;N
1046       
1047        Return filename
1048End
1049
1050//given the full path and filename (fullPath), strips the data path
1051//(Mac-style, separated by colons) and returns this path
1052//this partial path is the same string that would be returned from PathInfo, for example
1053//
1054// - allows the user to save to a different path than catPathName
1055//
1056// called by WriteQIS.ipf
1057//
1058Function/S GetPathStrFromfullName(fullPath)
1059        String fullPath
1060       
1061        Variable offset1,offset2
1062        //String filename
1063        String PartialPath
1064        offset1 = 0
1065        do
1066                offset2 = StrSearch(fullPath, ":", offset1)
1067                if (offset2 == -1)                              // no more colons ?
1068                        //fileName = FullPath[offset1,strlen(FullPath) ]
1069                        PartialPath = FullPath[0, offset1-1]
1070                        break
1071                endif
1072                offset1 = offset2+1
1073        while (1)
1074       
1075        Return PartialPath
1076End
1077
1078//given the VAX filename, pull off the first 8 characters to make a valid
1079//file string that can be used for naming averaged 1-d files
1080//
1081// called by ProtocolAsPanel.ipf and Tile_2D.ipf
1082//
1083Function/S GetNameFromHeader(fullName)
1084        String fullName
1085        String temp, newName = ""
1086        Variable spc,ii=0
1087       
1088        //filename is 20 characters NNNNNxxx.SAn_NNN_NNN
1089        //want the first 8 characters, NNNNNxxx, then strip off any spaces at the beginning
1090        //NNNNN was entered as less than 5 characters
1091        //returns a null string if no name can be found
1092        do
1093                temp = fullname[ii,7]           //characters ii,7 of the name
1094                spc = strsearch(temp," ",0)
1095                if (spc == -1)
1096                        break           //no more spaces found
1097                endif
1098                ii+=1
1099        While(ii<8)
1100       
1101        If(strlen(temp) < 1)
1102                newName = ""            //be sure to return a null string if problem found
1103        else
1104                newName = temp
1105        Endif
1106       
1107        Return(newName)
1108End
1109
1110//list (input) is a list, typically returned from IndexedFile()
1111//which is semicolon-delimited, and may contain filenames from the VAX
1112//that contain version numbers, where the version number appears as a separate list item
1113//(and also as a non-existent file)
1114//these numbers must be purged from the list, especially for display in a popup
1115//or list processing of filenames
1116//the function returns the list, cleaned of version numbers (up to 11)
1117//raw data files will typically never have a version number other than 1.
1118//
1119// if there are no version numbers in the list, the input list is returned
1120//
1121// called by CatVSTable.ipf, NSORT.ipf, Transmission.ipf, WorkFileUtils.ipf
1122//
1123Function/S RemoveVersNumsFromList(list)
1124        String list
1125       
1126        //get rid of version numbers first (up to 11)
1127        Variable ii,num
1128        String item
1129        num = ItemsInList(list,";")
1130        ii=1
1131        do
1132                item = num2str(ii)
1133                list = RemoveFromList(item, list ,";" )
1134                ii+=1
1135        while(ii<12)
1136       
1137        return (list)
1138End
1139
1140//input is a list of run numbers, and output is a list of filenames (not the full path)
1141//*** input list must be COMMA delimited***
1142//output is equivalent to selecting from the CAT table
1143//if some or all of the list items are valid filenames, keep them...
1144//if an error is encountered, notify of the offending element and return a null list
1145//
1146//output is COMMA delimited
1147//
1148// this routine is expecting that the "ask", "none" special cases are handled elsewhere
1149//and not passed here
1150//
1151// called by Marquee.ipf, MultipleReduce.ipf, ProtocolAsPanel.ipf
1152//
1153Function/S ParseRunNumberList(list)
1154        String list
1155       
1156        String newList="",item="",tempStr=""
1157        Variable num,ii,runNum
1158       
1159        //expand number ranges, if any
1160        list = ExpandNumRanges(list)
1161       
1162        num=itemsinlist(list,",")
1163       
1164        for(ii=0;ii<num;ii+=1)
1165                //get the item
1166                item = StringFromList(ii,list,",")
1167                //is it already a valid filename?
1168                tempStr=FindValidFilename(item) //returns filename if good, null if error
1169                if(strlen(tempstr)!=0)
1170                        //valid name, add to list
1171                        //Print "it's a file"
1172                        newList += tempStr + ","
1173                else
1174                        //not a valid name
1175                        //is it a number?
1176                        runNum=str2num(item)
1177                        //print runnum
1178                        if(numtype(runNum) != 0)
1179                                //not a number -  maybe an error                       
1180                                DoAlert 0,"List item "+item+" is not a valid run number or filename. Please enter a valid number or filename."
1181                                return("")
1182                        else
1183                                //a run number or an error
1184                                tempStr = GetFileNameFromPathNoSemi( FindFileFromRunNumber(runNum) )
1185                                if(strlen(tempstr)==0)
1186                                        //file not found, error
1187                                        DoAlert 0,"List item "+item+" is not a valid run number. Please enter a valid number."
1188                                        return("")
1189                                else
1190                                        newList += tempStr + ","
1191                                endif
1192                        endif
1193                endif
1194        endfor          //loop over all items in list
1195       
1196        return(newList)
1197End
1198
1199//takes a comma delimited list that MAY contain number range, and
1200//expands any range of run numbers into a comma-delimited list...
1201//and returns the new list - if not a range, return unchanged
1202//
1203// local function
1204//
1205Function/S ExpandNumRanges(list)
1206        String list
1207       
1208        String newList="",dash="-",item,str
1209        Variable num,ii,hasDash
1210       
1211        num=itemsinlist(list,",")
1212//      print num
1213        for(ii=0;ii<num;ii+=1)
1214                //get the item
1215                item = StringFromList(ii,list,",")
1216                //does it contain a dash?
1217                hasDash = strsearch(item,dash,0)                //-1 if no dash found
1218                if(hasDash == -1)
1219                        //not a range, keep it in the list
1220                        newList += item + ","
1221                else
1222                        //has a dash (so it's a range), expand (or add null)
1223                        newList += ListFromDash(item)           
1224                endif
1225        endfor
1226       
1227        return newList
1228End
1229
1230//be sure to add a trailing comma to the return string...
1231//
1232// local function
1233//
1234Function/S ListFromDash(item)
1235        String item
1236       
1237        String numList="",loStr="",hiStr=""
1238        Variable lo,hi,ii
1239       
1240        loStr=StringFromList(0,item,"-")        //treat the range as a list
1241        hiStr=StringFromList(1,item,"-")
1242        lo=str2num(loStr)
1243        hi=str2num(hiStr)
1244        if( (numtype(lo) != 0) || (numtype(hi) !=0 ) || (lo > hi) )
1245                numList=""
1246                return numList
1247        endif
1248        for(ii=lo;ii<=hi;ii+=1)
1249                numList += num2str(ii) + ","
1250        endfor
1251       
1252        Return numList
1253End
1254
1255
1256////////Transmission
1257//******************
1258//lookup tables for attenuator transmissions
1259//NG3 and NG7 attenuators are physically different, so the transmissions are slightly different
1260//NG1 - (8m SANS) is not supported
1261//
1262// new calibration done June 2007, John Barker
1263//
1264Proc MakeNG3AttenTable()
1265
1266        NewDataFolder/O root:myGlobals:Attenuators
1267        //do explicitly to avoid data folder problems, redundant, but it must work without fail
1268        Variable num=10         //10 needed for tables after June 2007
1269
1270        Make/O/N=(num) root:myGlobals:Attenuators:ng3att0
1271        Make/O/N=(num) root:myGlobals:Attenuators:ng3att1
1272        Make/O/N=(num) root:myGlobals:Attenuators:ng3att2
1273        Make/O/N=(num) root:myGlobals:Attenuators:ng3att3
1274        Make/O/N=(num) root:myGlobals:Attenuators:ng3att4
1275        Make/O/N=(num) root:myGlobals:Attenuators:ng3att5
1276        Make/O/N=(num) root:myGlobals:Attenuators:ng3att6
1277        Make/O/N=(num) root:myGlobals:Attenuators:ng3att7
1278        Make/O/N=(num) root:myGlobals:Attenuators:ng3att8
1279        Make/O/N=(num) root:myGlobals:Attenuators:ng3att9
1280        Make/O/N=(num) root:myGlobals:Attenuators:ng3att10
1281       
1282        // and a wave for the errors at each attenuation factor
1283        Make/O/N=(num) root:myGlobals:Attenuators:ng3att0_err
1284        Make/O/N=(num) root:myGlobals:Attenuators:ng3att1_err
1285        Make/O/N=(num) root:myGlobals:Attenuators:ng3att2_err
1286        Make/O/N=(num) root:myGlobals:Attenuators:ng3att3_err
1287        Make/O/N=(num) root:myGlobals:Attenuators:ng3att4_err
1288        Make/O/N=(num) root:myGlobals:Attenuators:ng3att5_err
1289        Make/O/N=(num) root:myGlobals:Attenuators:ng3att6_err
1290        Make/O/N=(num) root:myGlobals:Attenuators:ng3att7_err
1291        Make/O/N=(num) root:myGlobals:Attenuators:ng3att8_err
1292        Make/O/N=(num) root:myGlobals:Attenuators:ng3att9_err
1293        Make/O/N=(num) root:myGlobals:Attenuators:ng3att10_err
1294       
1295       
1296        //each wave has 10 elements, the transmission of att# at the wavelengths
1297        //lambda = 4,5,6,7,8,10,12,14,17,20 (4 A and 20 A are extrapolated values)
1298        Make/O/N=(num) root:myGlobals:Attenuators:ng3lambda={4,5,6,7,8,10,12,14,17,20}
1299       
1300        // new calibration done June 2007, John Barker
1301        root:myGlobals:Attenuators:ng3att0 = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }
1302        root:myGlobals:Attenuators:ng3att1 = {0.444784,0.419,0.3935,0.3682,0.3492,0.3132,0.2936,0.2767,0.2477,0.22404}
1303        root:myGlobals:Attenuators:ng3att2 = {0.207506,0.1848,0.1629,0.1447,0.1292,0.1056,0.09263,0.08171,0.06656,0.0546552}
1304        root:myGlobals:Attenuators:ng3att3 = {0.092412,0.07746,0.06422,0.05379,0.04512,0.03321,0.02707,0.02237,0.01643,0.0121969}
1305        root:myGlobals:Attenuators:ng3att4 = {0.0417722,0.03302,0.02567,0.02036,0.01604,0.01067,0.00812,0.006316,0.00419,0.00282411}
1306        root:myGlobals:Attenuators:ng3att5 = {0.0187129,0.01397,0.01017,0.007591,0.005668,0.003377,0.002423,0.001771,0.001064,0.000651257}
1307        root:myGlobals:Attenuators:ng3att6 = {0.00851048,0.005984,0.004104,0.002888,0.002029,0.001098,0.0007419,0.0005141,0.000272833,0.000150624}
1308        root:myGlobals:Attenuators:ng3att7 = {0.00170757,0.001084,0.0006469,0.0004142,0.0002607,0.0001201,7.664e-05,4.06624e-05,1.77379e-05,7.30624e-06}
1309        root:myGlobals:Attenuators:ng3att8 = {0.000320057,0.0001918,0.0001025,6.085e-05,3.681e-05,1.835e-05,6.74002e-06,3.25288e-06,1.15321e-06,3.98173e-07}
1310        root:myGlobals:Attenuators:ng3att9 = {6.27682e-05,3.69e-05,1.908e-05,1.196e-05,8.738e-06,6.996e-06,6.2901e-07,2.60221e-07,7.49748e-08,2.08029e-08}
1311        root:myGlobals:Attenuators:ng3att10 = {1.40323e-05,8.51e-06,5.161e-06,4.4e-06,4.273e-06,1.88799e-07,5.87021e-08,2.08169e-08,4.8744e-09,1.08687e-09}
1312 
1313  // percent errors as measured, May 2007 values
1314  // zero error for zero attenuators, appropriate average values put in for unknown values
1315        root:myGlobals:Attenuators:ng3att0_err = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
1316        root:myGlobals:Attenuators:ng3att1_err = {0.15,0.142,0.154,0.183,0.221,0.328,0.136,0.13,0.163,0.15}
1317        root:myGlobals:Attenuators:ng3att2_err = {0.25,0.257,0.285,0.223,0.271,0.405,0.212,0.223,0.227,0.25}
1318        root:myGlobals:Attenuators:ng3att3_err = {0.3,0.295,0.329,0.263,0.323,0.495,0.307,0.28,0.277,0.3}
1319        root:myGlobals:Attenuators:ng3att4_err = {0.35,0.331,0.374,0.303,0.379,0.598,0.367,0.322,0.33,0.35}
1320        root:myGlobals:Attenuators:ng3att5_err = {0.4,0.365,0.418,0.355,0.454,0.745,0.411,0.367,0.485,0.4}
1321        root:myGlobals:Attenuators:ng3att6_err = {0.45,0.406,0.473,0.385,0.498,0.838,0.454,0.49,0.5,0.5}
1322        root:myGlobals:Attenuators:ng3att7_err = {0.6,0.554,0.692,0.425,0.562,0.991,0.715,0.8,0.8,0.8}
1323        root:myGlobals:Attenuators:ng3att8_err = {0.7,0.705,0.927,0.503,0.691,1.27,1,1,1,1}
1324        root:myGlobals:Attenuators:ng3att9_err = {1,0.862,1.172,0.799,1.104,1.891,1.5,1.5,1.5,1.5}
1325        root:myGlobals:Attenuators:ng3att10_err = {1.5,1.054,1.435,1.354,1.742,2,2,2,2,2}
1326 
1327 
1328  //old tables, pre-June 2007
1329//      Make/O/N=9 root:myGlobals:Attenuators:ng3lambda={5,6,7,8,10,12,14,17,20}
1330//      root:myGlobals:Attenuators:ng3att0 = {1, 1, 1, 1, 1, 1, 1, 1,1 }
1331//      root:myGlobals:Attenuators:ng3att1 = {0.421, 0.394, 0.371, 0.349, 0.316, 0.293, 0.274, 0.245,0.220}
1332//      root:myGlobals:Attenuators:ng3att2 = {0.187, 0.164, 0.145, 0.130, 0.106, 0.0916, 0.0808, 0.0651,0.0531}
1333//      root:myGlobals:Attenuators:ng3att3 = {0.0777, 0.0636, 0.0534, 0.0446, 0.0330, 0.0262, 0.0217, 0.0157 ,0.0116}
1334//      root:myGlobals:Attenuators:ng3att4 = {0.0328, 0.0252, 0.0195, 0.0156, 0.0104, 7.68e-3, 5.98e-3, 3.91e-3,0.00262}
1335//      root:myGlobals:Attenuators:ng3att5 = {0.0139, 9.94e-3, 7.34e-3, 5.44e-3, 3.29e-3, 2.25e-3, 1.66e-3, 9.95e-4, 6.12e-4}
1336//      root:myGlobals:Attenuators:ng3att6 = {5.95e-3, 3.97e-3, 2.77e-3, 1.95e-3, 1.06e-3, 6.81e-4, 4.71e-4, 2.59e-4 , 1.45e-4}
1337//      root:myGlobals:Attenuators:ng3att7 = {1.07e-3, 6.24e-4, 3.90e-4, 2.44e-4, 1.14e-4, 6.55e-5, 4.10e-5, 1.64e-5 , 7.26e-6}
1338//      root:myGlobals:Attenuators:ng3att8 = {1.90e-4, 9.84e-5, 5.60e-5, 3.25e-5, 1.55e-5, 6.60e-6, 3.42e-6, 1.04e-6 , 3.48e-7}
1339//      root:myGlobals:Attenuators:ng3att9 = {3.61e-5, 1.74e-5, 9.90e-6, 6.45e-6, 2.35e-6, 6.35e-7, 2.86e-7, 6.61e-8 , 1.73e-8}
1340//      root:myGlobals:Attenuators:ng3att10 = {7.60e-6, 3.99e-6, 2.96e-6, 2.03e-6, 3.34e-7, 6.11e-8, 2.39e-8, 4.19e-9 , 8.60e-10}
1341
1342End
1343
1344// new calibration done June 2007, John Barker
1345Proc MakeNG7AttenTable()
1346
1347        NewDataFolder/O root:myGlobals:Attenuators
1348       
1349        Variable num=10         //10 needed for tables after June 2007
1350       
1351        Make/O/N=(num) root:myGlobals:Attenuators:ng7att0
1352        Make/O/N=(num) root:myGlobals:Attenuators:ng7att1
1353        Make/O/N=(num) root:myGlobals:Attenuators:ng7att2
1354        Make/O/N=(num) root:myGlobals:Attenuators:ng7att3
1355        Make/O/N=(num) root:myGlobals:Attenuators:ng7att4
1356        Make/O/N=(num) root:myGlobals:Attenuators:ng7att5
1357        Make/O/N=(num) root:myGlobals:Attenuators:ng7att6
1358        Make/O/N=(num) root:myGlobals:Attenuators:ng7att7
1359        Make/O/N=(num) root:myGlobals:Attenuators:ng7att8
1360        Make/O/N=(num) root:myGlobals:Attenuators:ng7att9
1361        Make/O/N=(num) root:myGlobals:Attenuators:ng7att10
1362       
1363        // and a wave for the errors at each attenuation factor
1364        Make/O/N=(num) root:myGlobals:Attenuators:ng7att0_err
1365        Make/O/N=(num) root:myGlobals:Attenuators:ng7att1_err
1366        Make/O/N=(num) root:myGlobals:Attenuators:ng7att2_err
1367        Make/O/N=(num) root:myGlobals:Attenuators:ng7att3_err
1368        Make/O/N=(num) root:myGlobals:Attenuators:ng7att4_err
1369        Make/O/N=(num) root:myGlobals:Attenuators:ng7att5_err
1370        Make/O/N=(num) root:myGlobals:Attenuators:ng7att6_err
1371        Make/O/N=(num) root:myGlobals:Attenuators:ng7att7_err
1372        Make/O/N=(num) root:myGlobals:Attenuators:ng7att8_err
1373        Make/O/N=(num) root:myGlobals:Attenuators:ng7att9_err
1374        Make/O/N=(num) root:myGlobals:Attenuators:ng7att10_err 
1375       
1376        //NG7 wave has 10 elements, the transmission of att# at the wavelengths
1377        //lambda =4, 5,6,7,8,10,12,14,17,20
1378        // note that some of the higher attenuations and ALL of the 4 A and 20A data is interpolated
1379        // none of these values are expected to be used in reality since the flux would be too low in practice
1380        Make/O/N=(num) root:myGlobals:Attenuators:ng7lambda={4,5,6,7,8,10,12,14,17,20}
1381
1382// New calibration, June 2007, John Barker
1383        root:myGlobals:Attenuators:ng7att0 = {1, 1, 1, 1, 1, 1, 1, 1 ,1,1}     
1384        root:myGlobals:Attenuators:ng7att1 = {0.448656,0.4192,0.3925,0.3661,0.3458,0.3098,0.2922,0.2738,0.2544,0.251352}
1385        root:myGlobals:Attenuators:ng7att2 = {0.217193,0.1898,0.1682,0.148,0.1321,0.1076,0.0957,0.08485,0.07479,0.0735965}
1386        root:myGlobals:Attenuators:ng7att3 = {0.098019,0.07877,0.06611,0.05429,0.04548,0.03318,0.02798,0.0234,0.02004,0.0202492}
1387        root:myGlobals:Attenuators:ng7att4 = {0.0426904,0.03302,0.02617,0.02026,0.0158,0.01052,0.008327,0.006665,0.005745,0.00524807}
1388        root:myGlobals:Attenuators:ng7att5 = {0.0194353,0.01398,0.01037,0.0075496,0.005542,0.003339,0.002505,0.001936,0.001765,0.00165959}
1389        root:myGlobals:Attenuators:ng7att6 = {0.00971666,0.005979,0.004136,0.002848,0.001946,0.001079,0.0007717,0.000588,0.000487337,0.000447713}
1390        root:myGlobals:Attenuators:ng7att7 = {0.00207332,0.001054,0.0006462,0.0003957,0.0002368,0.0001111,7.642e-05,4.83076e-05,3.99401e-05,3.54814e-05}
1391        root:myGlobals:Attenuators:ng7att8 = {0.000397173,0.0001911,0.0001044,5.844e-05,3.236e-05,1.471e-05,6.88523e-06,4.06541e-06,3.27333e-06,2.81838e-06}
1392        root:myGlobals:Attenuators:ng7att9 = {9.43625e-05,3.557e-05,1.833e-05,1.014e-05,6.153e-06,1.64816e-06,6.42353e-07,3.42132e-07,2.68269e-07,2.2182e-07}
1393        root:myGlobals:Attenuators:ng7att10 = {2.1607e-05,7.521e-06,2.91221e-06,1.45252e-06,7.93451e-07,1.92309e-07,5.99279e-08,2.87928e-08,2.19862e-08,1.7559e-08}
1394
1395  // percent errors as measured, May 2007 values
1396  // zero error for zero attenuators, appropriate average values put in for unknown values
1397        root:myGlobals:Attenuators:ng7att0_err = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
1398        root:myGlobals:Attenuators:ng7att1_err = {0.2,0.169,0.1932,0.253,0.298,0.4871,0.238,0.245,0.332,0.3}
1399        root:myGlobals:Attenuators:ng7att2_err = {0.3,0.305,0.3551,0.306,0.37,0.6113,0.368,0.413,0.45,0.4}
1400        root:myGlobals:Attenuators:ng7att3_err = {0.4,0.355,0.4158,0.36,0.4461,0.7643,0.532,0.514,0.535,0.5}
1401        root:myGlobals:Attenuators:ng7att4_err = {0.45,0.402,0.4767,0.415,0.5292,0.9304,0.635,0.588,0.623,0.6}
1402        root:myGlobals:Attenuators:ng7att5_err = {0.5,0.447,0.5376,0.487,0.6391,1.169,0.708,0.665,0.851,0.8}
1403        root:myGlobals:Attenuators:ng7att6_err = {0.6,0.501,0.6136,0.528,0.8796,1.708,0.782,0.874,1,1}
1404        root:myGlobals:Attenuators:ng7att7_err = {0.8,0.697,0.9149,0.583,1.173,2.427,1.242,2,2,2}
1405        root:myGlobals:Attenuators:ng7att8_err = {1,0.898,1.24,0.696,1.577,3.412,3,3,3,3}
1406        root:myGlobals:Attenuators:ng7att9_err = {1.5,1.113,1.599,1.154,2.324,4.721,5,5,5,5}
1407        root:myGlobals:Attenuators:ng7att10_err = {1.5,1.493,5,5,5,5,5,5,5,5} 
1408 
1409
1410// Pre-June 2007 calibration values - do not use these anymore 
1411////    root:myGlobals:Attenuators:ng7att0 = {1, 1, 1, 1, 1, 1, 1, 1 ,1}
1412////    root:myGlobals:Attenuators:ng7att1 = {0.418, 0.393, 0.369, 0.347, 0.313, 0.291, 0.271, 0.244, 0.219 }
1413////    root:myGlobals:Attenuators:ng7att2 = {0.189, 0.167, 0.148, 0.132, 0.109, 0.0945, 0.0830, 0.0681, 0.0560}
1414////    root:myGlobals:Attenuators:ng7att3 = {0.0784, 0.0651, 0.0541, 0.0456, 0.0340, 0.0273, 0.0223, 0.0164 , 0.0121}
1415////    root:myGlobals:Attenuators:ng7att4 = {0.0328, 0.0256, 0.0200, 0.0159, 0.0107, 7.98e-3, 6.14e-3, 4.09e-3 , 0.00274}
1416////    root:myGlobals:Attenuators:ng7att5 = {0.0139, 0.0101, 7.43e-3, 5.58e-3, 3.42e-3, 2.36e-3, 1.70e-3, 1.03e-3 , 6.27e-4}
1417////    root:myGlobals:Attenuators:ng7att6 = {5.90e-3, 4.07e-3, 2.79e-3, 1.99e-3, 1.11e-3, 7.13e-4, 4.91e-4, 2.59e-4 , 1.42e-4}
1418////    root:myGlobals:Attenuators:ng7att7 = {1.04e-3, 6.37e-4, 3.85e-4, 2.46e-4, 1.16e-4, 6.86e-5, 4.10e-5, 1.64e-5 ,7.02e-6}
1419////    root:myGlobals:Attenuators:ng7att8 = {1.90e-4, 1.03e-4, 5.71e-5, 3.44e-5, 1.65e-5, 6.60e-6, 3.42e-6, 1.04e-6 , 3.48e-7}
1420////    root:myGlobals:Attenuators:ng7att9 = {3.58e-5, 1.87e-5, 1.05e-5, 7.00e-6, 2.35e-6, 6.35e-7, 2.86e-7, 6.61e-8 , 1.73e-8}
1421////    root:myGlobals:Attenuators:ng7att10 = {7.76e-6, 4.56e-6, 3.25e-6, 2.03e-6, 3.34e-7, 6.11e-8, 2.39e-8, 4.19e-9, 8.60e-10}
1422End
1423
1424//returns the transmission of the attenuator (at NG3) given the attenuator number
1425//which must be an integer(to select the wave) and given the wavelength.
1426//the wavelength may be any value between 4 and 20 (A), and is interpolated
1427//between calibrated wavelengths for a given attenuator
1428//
1429// Mar 2010 - abs() added to attStr to account for ICE reporting -0.0001 as an attenuator position, which truncates to "-0"
1430Function LookupAttenNG3(lambda,attenNo,atten_err)
1431        Variable lambda, attenNo, &atten_err
1432       
1433        Variable trans
1434        String attStr="root:myGlobals:Attenuators:ng3att"+num2str(trunc(abs(attenNo)))
1435        String attErrWStr="root:myGlobals:Attenuators:ng3att"+num2str(trunc(abs(attenNo)))+"_err"
1436        String lamStr = "root:myGlobals:Attenuators:ng3lambda"
1437       
1438        if(attenNo == 0)
1439                return (1)              //no attenuation, return trans == 1
1440        endif
1441       
1442        if( (lambda < 4) || (lambda > 20 ) )
1443                Abort "Wavelength out of calibration range (4,20). You must manually enter the absolute parameters"
1444        Endif
1445       
1446        if(!(WaveExists($attStr)) || !(WaveExists($lamStr)) || !(WaveExists($attErrWStr)))
1447                Execute "MakeNG3AttenTable()"
1448        Endif
1449        //just in case creating the tables fails....
1450        if(!(WaveExists($attStr)) || !(WaveExists($lamStr)) )
1451                Abort "Attenuator lookup waves could not be found. You must manually enter the absolute parameters"
1452        Endif
1453       
1454        //lookup the value by interpolating the wavelength
1455        //the attenuator must always be an integer
1456        Wave att = $attStr
1457        Wave attErrW = $attErrWStr
1458        Wave lam = $lamstr
1459        trans = interp(lambda,lam,att)
1460        atten_err = interp(lambda,lam,attErrW)
1461
1462// the error in the tables is % error. return the standard deviation instead
1463        atten_err = trans*atten_err/100
1464               
1465//      Print "trans = ",trans
1466//      Print "trans err = ",atten_err
1467       
1468        return trans
1469End
1470
1471//returns the transmission of the attenuator (at NG7) given the attenuator number
1472//which must be an integer(to select the wave) and given the wavelength.
1473//the wavelength may be any value between 4 and 20 (A), and is interpolated
1474//between calibrated wavelengths for a given attenuator
1475//
1476// this set of tables is also used for NG5 (NG1) SANS instrument - as the attenuator has never been calibrated
1477//
1478// local function
1479//
1480// Mar 2010 - abs() added to attStr to account for ICE reporting -0.0001 as an attenuator position, which truncates to "-0"
1481Function LookupAttenNG7(lambda,attenNo,atten_err)
1482        Variable lambda, attenNo, &atten_err
1483       
1484        Variable trans
1485        String attStr="root:myGlobals:Attenuators:ng7att"+num2str(trunc(abs(attenNo)))
1486        String attErrWStr="root:myGlobals:Attenuators:ng7att"+num2str(trunc(abs(attenNo)))+"_err"
1487        String lamStr = "root:myGlobals:Attenuators:ng7lambda"
1488       
1489        if(attenNo == 0)
1490                return (1)              //no attenuation, return trans == 1
1491        endif
1492       
1493        if( (lambda < 4) || (lambda > 20 ) )
1494                Abort "Wavelength out of calibration range (4,20). You must manually enter the absolute parameters"
1495        Endif
1496       
1497        if(!(WaveExists($attStr)) || !(WaveExists($lamStr)) || !(WaveExists($attErrWStr)))
1498                Execute "MakeNG7AttenTable()"
1499        Endif
1500        //just in case creating the tables fails....
1501        if(!(WaveExists($attStr)) || !(WaveExists($lamStr)) )
1502                Abort "Attenuator lookup waves could not be found. You must manually enter the absolute parameters"
1503        Endif
1504       
1505        //lookup the value by interpolating the wavelength
1506        //the attenuator must always be an integer
1507        Wave att = $attStr
1508        Wave attErrW = $attErrWStr
1509        Wave lam = $lamstr
1510        trans = interp(lambda,lam,att)
1511        atten_err = interp(lambda,lam,attErrW)
1512
1513// the error in the tables is % error. return the standard deviation instead
1514        atten_err = trans*atten_err/100
1515       
1516//      Print "trans = ",trans
1517//      Print "trans err = ",atten_err
1518       
1519        return trans
1520
1521End
1522
1523// a utility function so that I can get the values from the command line
1524// since the atten_err is PBR
1525//
1526Function PrintAttenuation(instr,lam,attenNo)
1527        String instr
1528        Variable lam,attenNo
1529       
1530        Variable atten_err, attenFactor
1531       
1532        strswitch(instr)
1533                case "NG3":
1534                        attenFactor = LookupAttenNG3(lam,attenNo,atten_err)
1535                        break
1536                case "NG5":
1537                        //using NG7 lookup Table
1538                        attenFactor = LookupAttenNG7(lam,attenNo,atten_err)
1539                        break
1540                case "NG7":
1541                        attenFactor = LookupAttenNG7(lam,attenNo,atten_err)
1542                        break
1543                default:                                                       
1544                        //return error?
1545                        attenFactor=1
1546        endswitch
1547
1548        Print "atten, err = ", attenFactor, atten_err
1549       
1550        return(0)
1551End
1552
1553
1554
1555//returns the proper attenuation factor based on the instrument (NG3, NG5, or NG7)
1556//NG5 values are taken from the NG7 tables (there is very little difference in the
1557//values, and NG5 attenuators have not been calibrated (as of 8/01)
1558//
1559// filestr is passed from TextRead[3] = the default directory
1560// lam is passed from RealsRead[26]
1561// AttenNo is passed from ReaslRead[3]
1562//
1563// Attenuation factor as defined here is <= 1
1564//
1565// ORNL can pass ("",1,attenuationFactor) and have this function simply
1566// spit back the attenuationFactor (that was read into rw[3])
1567//
1568// called by Correct.ipf, ProtocolAsPanel.ipf, Transmission.ipf
1569//
1570//
1571// as of March 2011, returns the error (one standard deviation) in the attenuation factor as the last parameter, by reference
1572Function AttenuationFactor(fileStr,lam,attenNo,atten_err)
1573        String fileStr
1574        Variable lam,attenNo, &atten_err
1575       
1576        Variable attenFactor=1,loc
1577        String instr=fileStr[1,3]       //filestr is "[NGnSANSn] " or "[NGnSANSnn]" (11 characters total)
1578       
1579        strswitch(instr)
1580                case "NG3":
1581                        attenFactor = LookupAttenNG3(lam,attenNo,atten_err)
1582                        break
1583                case "NG5":
1584                        //using NG7 lookup Table
1585                        attenFactor = LookupAttenNG7(lam,attenNo,atten_err)
1586                        break
1587                case "NG7":
1588                        attenFactor = LookupAttenNG7(lam,attenNo,atten_err)
1589                        break
1590                default:                                                       
1591                        //return error?
1592                        attenFactor=1
1593        endswitch
1594//      print "instr, lambda, attenNo,attenFactor = ",instr,lam,attenNo,attenFactor
1595        return(attenFactor)
1596End
1597
1598//function called by the popups to get a file list of data that can be sorted
1599// this procedure simply removes the raw data files from the string - there
1600//can be lots of other junk present, but this is very fast...
1601//
1602// could also use the alternate procedure of keeping only file with the proper extension
1603//
1604// another possibility is to get a listing of the text files, but is unreliable on
1605// Windows, where the data file must be .txt (and possibly OSX)
1606//
1607// called by FIT_Ops.ipf, NSORT.ipf, PlotUtils.ipf
1608//
1609Function/S ReducedDataFileList(ctrlName)
1610        String ctrlName
1611
1612        String list="",newList="",item=""
1613        Variable num,ii
1614       
1615        //check for the path
1616        PathInfo catPathName
1617        if(V_Flag==0)
1618                DoAlert 0, "Data path does not exist - pick the data path from the button on the main panel"
1619                Return("")
1620        Endif
1621       
1622        list = IndexedFile(catpathName,-1,"????")
1623       
1624        list = RemoveFromList(ListMatch(list,"*.SA1*",";"), list, ";", 0)
1625        list = RemoveFromList(ListMatch(list,"*.SA2*",";"), list, ";", 0)
1626        list = RemoveFromList(ListMatch(list,"*.SA3*",";"), list, ";", 0)
1627        list = RemoveFromList(ListMatch(list,".*",";"), list, ";", 0)
1628        list = RemoveFromList(ListMatch(list,"*.pxp",";"), list, ";", 0)
1629        list = RemoveFromList(ListMatch(list,"*.DIV",";"), list, ";", 0)
1630        list = RemoveFromList(ListMatch(list,"*.GSP",";"), list, ";", 0)
1631        list = RemoveFromList(ListMatch(list,"*.MASK",";"), list, ";", 0)
1632
1633        //remove VAX version numbers
1634        list = RemoveVersNumsFromList(List)
1635        //sort
1636        newList = SortList(List,";",0)
1637
1638        return newlist
1639End
1640
1641// returns a list of raw data files in the catPathName directory on disk
1642// - list is SEMICOLON-delimited
1643//
1644// does it the "cheap" way, simply finding the ".SAn" in the file name
1645// = does not check for proper byte length.
1646//
1647// called by PatchFiles.ipf, Tile_2D.ipf
1648//
1649Function/S GetRawDataFileList()
1650       
1651        //make sure that path exists
1652        PathInfo catPathName
1653        if (V_flag == 0)
1654                Abort "Folder path does not exist - use Pick Path button on Main Panel"
1655        Endif
1656       
1657        String list=IndexedFile(catPathName,-1,"????")
1658        String newList="",item=""
1659        Variable num=ItemsInList(list,";"),ii
1660        for(ii=0;ii<num;ii+=1)
1661                item = StringFromList(ii, list  ,";")
1662                if( stringmatch(item,"*.sa1*") )
1663                        newlist += item + ";"
1664                endif
1665                if( stringmatch(item,"*.sa2*") )
1666                        newlist += item + ";"
1667                endif
1668                if( stringmatch(item,"*.sa3*") )
1669                        newlist += item + ";"
1670                endif
1671                //print "ii=",ii
1672        endfor
1673        newList = SortList(newList,";",0)
1674        return(newList)
1675End
1676
1677// Return the filename that represents the previous or next file.
1678// Input is current filename and increment.
1679// Increment should be -1 or 1
1680// -1 => previous file
1681// 1 => next file
1682Function/S GetPrevNextRawFile(curfilename, prevnext)
1683        String curfilename
1684        Variable prevnext
1685
1686        String filename
1687       
1688        //get the run number
1689        Variable num = GetRunNumFromFile(curfilename)
1690               
1691        //find the next specified file by number
1692        fileName = FindFileFromRunNumber(num+prevnext)
1693
1694        if(cmpstr(fileName,"")==0)
1695                //null return, do nothing
1696                fileName = FindFileFromRunNumber(num)
1697        Endif
1698
1699//      print "in FU "+filename
1700
1701        Return filename
1702End
1703
1704
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