source: sans/Dev/trunk/NCNR_User_Procedures/Reduction/VSANS/VC_DetectorBinning_Utils.ipf @ 1105

Last change on this file since 1105 was 1105, checked in by srkline, 4 years ago

updated mask drawing to draw arbitrary shapes, fixing bugs in the operation.

fix operation of popups in transmission panel.

other bug fixes that I don't recall from the past week.

File size: 51.0 KB
Line 
1#pragma rtGlobals=3             // Use modern global access method and strict wave access.
2
3/////////////////////////
4//
5// Utility functions to:
6//              calculate Q, Qx, Qy, Qz
7//              fill the detector panels with simulated data (the model functions are here)
8//              bin the 2D detector to 1D I(Q) based on Q and deltaQ (bin width)
9//
10/////////////////////////
11
12
13
14
15// x- hard wired for a sphere - change this to allow minimal selections and altering of coefficients
16// x- add the "fake" 2D simulation to fill the panels which are then later averaged as I(Q)
17//
18// NOTE - this is a VCALC only routine, so it's not been made completely generic
19//
20Function FillPanel_wModelData(det,qTot,type)
21        Wave det,qTot
22        String type
23
24//      SetDataFolder root:Packages:NIST:VSANS:VCALC:Front
25
26        // q-values and detector arrays already allocated and calculated
27        Duplicate/O det tmpInten,tmpSig,prob_i
28               
29        Variable imon,trans,thick,sdd,pixSizeX,pixSizeY,sdd_offset
30
31        //imon = VC_BeamIntensity()*CountTime
32        imon = VCALC_getImon()          //TODO: currently from the panel, not calculated
33        trans = 0.8
34        thick = 0.1
35       
36        // need SDD
37        // need pixel dimensions
38        // nominal sdd in cm, offset in cm, want result in cm !
39        sdd = VCALC_getSDD(type)        +  VCALC_getTopBottomSDDSetback(type)           // result is sdd in [cm]
40
41        pixSizeX = VCALC_getPixSizeX(type)              // cm
42        pixSizeY = VCALC_getPixSizeY(type)
43       
44       
45        //?? pick the function from a popup on the panel? (bypass the analysis panel, or maybe it's better to
46        //  keep the panel to keep people used to using it.)
47        // peak @ 0.1 ~ AgBeh
48        //      Make/O/D coef_BroadPeak = {1e-9, 3, 20, 100.0, 0.1,3,0.1}               
49        //
50        // peak @ 0.015 in middle of middle detector, maybe not "real" vycor, but that is to be resolved
51        //      Make/O/D coef_BroadPeak = {1e-9, 3, 20, 500.0, 0.015,3,0.1}     
52        //
53        //
54        Variable addEmpBgd=0
55       
56               
57        String funcStr = VCALC_getModelFunctionStr()
58        strswitch(funcStr)
59                case "Big Debye":
60                        tmpInten = VC_Debye(100,3000,0.0001,qTot[p][q])
61                        break
62                case "Big Sphere":
63                        tmpInten = VC_SphereForm(1,2000,1e-6,0.01,qTot[p][q])   
64                        break
65                case "Debye":
66                        tmpInten = VC_Debye(10,300,0.0001,qTot[p][q])
67                        break
68                case "Sphere":
69                        tmpInten = VC_SphereForm(1,60,1e-6,0.001,qTot[p][q])   
70                        break
71                case "AgBeh":
72                        tmpInten = VC_BroadPeak(1e-11,3,20,100.0,0.1,3,0.1,qTot[p][q])
73                        break
74                case "Vycor":
75                        tmpInten = VC_BroadPeak(1e-9,3,20,500.0,0.015,3,0.1,qTot[p][q])
76                        break   
77                case "Empty Cell":
78                        tmpInten = VC_EC_Empirical(2.2e-12,3.346,0.0065,9.0,0.016,qTot[p][q])
79                        break
80                case "Blocked Beam":
81                        tmpInten = VC_BlockedBeam(0.01,qTot[p][q])
82                        break
83                case "Debye +":
84                        tmpInten = VC_Debye(10,300,0.0001,qTot[p][q])
85                        addEmpBgd = 1
86                        break
87                case "AgBeh +":
88                        tmpInten = VC_BroadPeak(1e-11,3,20,100.0,0.1,3,0.1,qTot[p][q])
89                        addEmpBgd = 1
90                        break
91                case "Empty Cell +":
92                        tmpInten = VC_EC_Empirical(2.2e-12,3.346,0.0065,9.0,0.016,qTot[p][q])
93                        tmpInten += VC_BlockedBeam(0.01,qTot[p][q])
94                        break
95                default:
96                        tmpInten = VC_Debye(10,300,0.1,qTot[p][q])
97        endswitch
98
99
100        if(addEmpBgd == 1)
101                tmpInten += VC_EC_Empirical(2.2e-12,3.346,0.0065,9.0,0.016,qTot[p][q])
102                tmpInten += VC_BlockedBeam(0.01,qTot[p][q])
103        endif
104
105       
106// x- this is faked to get around the singularity at the center of the back detector
107//
108//
109        if(cmpstr(type,"B") == 0)
110                Variable nx,ny,px,py
111                nx = VCALC_get_nPix_X(type)
112                ny = VCALC_get_nPix_Y(type)
113                px = trunc(nx/2)
114                py = trunc(ny/2)
115               
116                tmpInten[px][py] = (tmpInten[px][py+1] + tmpInten[px][py-1])/2
117        endif
118
119
120
121///////////////
122//      // calculate the scattering cross section simply to be able to estimate the transmission
123//      Variable sig_sas=0
124//     
125//      // remember that the random deviate is the coherent portion ONLY - the incoherent background is
126//      // subtracted before the calculation.
127//      CalculateRandomDeviate(funcUnsmeared,$coefStr,wavelength,"root:Packages:NIST:SAS:ran_dev",sig_sas)
128//
129//      if(sig_sas > 100)
130//              DoAlert 0,"SAS cross section > 100. Estimates of multiple scattering are unreliable. Choosing a model with a well-defined Rg may help"
131//      endif           
132//
133//      // calculate the multiple scattering fraction for display (10/2009)
134//      Variable ii,nMax=10,tau
135//      mScat=0
136//      tau = thick*sig_sas
137//      // this sums the normalized scattering P', so the result is the fraction of multiply coherently scattered
138//      // neutrons out of those that were scattered
139//      for(ii=2;ii<nMax;ii+=1)
140//              mScat += tau^(ii)/factorial(ii)
141////            print tau^(ii)/factorial(ii)
142//      endfor
143//      estTrans = exp(-1*thick*sig_sas)                //thickness and sigma both in units of cm
144//      mscat *= (estTrans)/(1-estTrans)
145//
146////    if(mScat > 0.1)         //  Display warning
147//
148//      Print "Sig_sas = ",sig_sas
149////////////////////
150       
151        prob_i = trans*thick*pixSizeX*pixSizeY/(sdd)^2*tmpInten                 //probability of a neutron in q-bin(i)
152               
153        tmpInten = (imon)*prob_i                //tmpInten is not the model calculation anymore!!
154
155
156/// **** can I safely assume a Gaussian error in the count rate??
157        tmpSig = sqrt(tmpInten)         // corrected based on John's memo, from 8/9/99
158
159        tmpInten += gnoise(tmpSig)
160        tmpInten = (tmpInten[p][q] < 0) ? 0 : tmpInten[p][q]                    // MAR 2013 -- is this the right thing to do
161        tmpInten = trunc(tmpInten)
162               
163       
164        det = tmpInten
165
166// if I want "absolute" scale -- then I lose the integer nature of the detector (but keep the random)
167//      det /= trans*thick*pixSizeX*pixSizeY/(sdd)^2*imon
168
169       
170        KillWaves/Z tmpInten,tmpSig,prob_i     
171        SetDataFolder root:
172
173        return(0)
174End
175
176
177// For a given detector panel, calculate the q-values
178// -work with everything as arrays
179// Input needed:
180// detector data
181// detector type (LRTB?)
182// beam center (may be off the detector)
183// SDD
184// lambda
185//
186// pixel dimensions for detector type (global constants)
187// - data dimensions read directly from array
188//
189// --What is calculated:
190// array of Q
191// array of qx,qy,qz
192// array of error already exists
193//
194//
195// -- sdd in cm
196// -- lambda in Angstroms
197Function VC_Detector_2Q(data,qTot,qx,qy,qz,xCtr,yCtr,sdd,lam,pixSizeX,pixSizeY)
198        Wave data,qTot,qx,qy,qz
199        Variable xCtr,yCtr,sdd,lam,pixSizeX,pixSizeY
200               
201        // loop over the array and calculate the values - this is done as a wave assignment
202// TODO -- be sure that it's p,q -- or maybe p+1,q+1 as used in WriteQIS.ipf   
203        qTot = VC_CalcQval(p,q,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
204        qx = VC_CalcQX(p,q,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
205        qy = VC_CalcQY(p,q,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
206        qz = VC_CalcQZ(p,q,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
207       
208        return(0)
209End
210
211
212// for testing, a version that will calculate the q-arrays for VCALC based on whatever nonlinear coefficients
213// exist in the RAW data folder
214//
215// reverts to the "regular" linear detector if waves not found or a flag is set
216//
217// need to call the VSANS V_CalcQval routines (these use the real-space distance, not pixel dims)
218//
219// ***** everything passed in is [cm], except for wavelength [A]
220//
221// ****  TODO :: calibration constants are still in [mm]
222//
223//
224// TODO:
225// -- tube width is hard-wired in
226//
227//
228Function VC_Detector_2Q_NonLin(data,qTot,qx,qy,qz,xCtr,yCtr,sdd,lam,pixSizeX,pixSizeY,detStr)
229        Wave data,qTot,qx,qy,qz
230        Variable xCtr,yCtr,sdd,lam,pixSizeX,pixSizeY
231        String detStr
232       
233        String destPath = "root:Packages:NIST:VSANS:VCALC"
234       
235        // be sure that the real distance waves exist
236        // TODO -- this may not be the best location?
237
238// calibration waves do not exist yet, so make some fake ones   '
239        // do I count on the orientation as an input, or do I just figure it out on my own?
240        String orientation
241        Variable dimX,dimY
242        dimX = DimSize(data,0)
243        dimY = DimSize(data,1)
244        if(dimX > dimY)
245                orientation = "horizontal"
246        else
247                orientation = "vertical"
248        endif
249       
250        if(cmpstr(orientation,"vertical")==0)
251                Make/O/D/N=(3,48) tmpCalib
252                // for the "tall" L/R banks
253                tmpCalib[0][] = -512
254                tmpCalib[1][] = 8
255                tmpCalib[2][] = 0
256        else
257                Make/O/D/N=(3,48) tmpCalib
258                // for the "short" T/B banks
259                tmpCalib[0][] = -256
260                tmpCalib[1][] = 4
261                tmpCalib[2][] = 0
262        endif
263        // override if back panel
264        if(cmpstr(detStr,"B") == 0)
265                // and for the back detector "B"
266                Make/O/D/N=3 tmpCalibX,tmpCalibY
267                tmpCalibX[0] = VCALC_getPixSizeX(detStr)*10                     // pixel size in mm  VCALC_getPixSizeX(detStr) is [cm]
268                tmpCalibX[1] = 1
269                tmpcalibX[2] = 10000
270                tmpCalibY[0] = VCALC_getPixSizeY(detStr)*10                     // pixel size in mm  VCALC_getPixSizeX(detStr) is [cm]
271                tmpCalibY[1] = 1
272                tmpcalibY[2] = 10000
273        endif
274       
275//      Wave w_calib = V_getDetTube_spatialCalib("VCALC",detStr)
276        Variable tube_width = 8.4                       // TODO: UNITS!!! Hard-wired value in [mm]
277        if(cmpstr(detStr,"B") == 0)
278                V_NonLinearCorrection_B("VCALC",data,tmpCalibX,tmpCalibY,detStr,destPath)
279        else
280                V_NonLinearCorrection("VCALC",data,tmpCalib,tube_width,detStr,destPath)
281        endif
282                               
283        Wave/Z data_realDistX = $(destPath + ":entry:instrument:detector_"+detStr+":data_realDistX")
284        Wave/Z data_realDistY = $(destPath + ":entry:instrument:detector_"+detStr+":data_realDistY")
285        NVAR gUseNonLinearDet = root:Packages:NIST:VSANS:VCALC:gUseNonLinearDet
286
287        if(kBCTR_CM)
288                if(gUseNonLinearDet && WaveExists(data_realDistX) && WaveExists(data_realDistY))
289                        // beam ctr is in cm already
290
291                        // calculate all of the q-values
292                        qTot = V_CalcQval(p,q,xCtr,yCtr,sdd,lam,data_realDistX,data_realDistY)
293                        qx = V_CalcQX(p,q,xCtr,yCtr,sdd,lam,data_realDistX,data_realDistY)
294                        qy = V_CalcQY(p,q,xCtr,yCtr,sdd,lam,data_realDistX,data_realDistY)
295                        qz = V_CalcQZ(p,q,xCtr,yCtr,sdd,lam,data_realDistX,data_realDistY)
296               
297        //              Print "det, x_mm, y_mm ",detStr,num2str(newX),num2str(newY)
298        //              Print "det, x_pix, y_pix ",detStr,num2str(xCtr),num2str(yCtr)
299                else
300                        // do the q-calculation using linear detector
301                        //VC_Detector_2Q(data,qTot,qx,qy,qz,xCtr,yCtr,sdd,lam,pixSizeX,pixSizeY)
302                        qTot = V_CalcQval(p,q,xCtr,yCtr,sdd,lam,data_realDistX,data_realDistY)
303                        qx = V_CalcQX(p,q,xCtr,yCtr,sdd,lam,data_realDistX,data_realDistY)
304                        qy = V_CalcQY(p,q,xCtr,yCtr,sdd,lam,data_realDistX,data_realDistY)
305                        qz = V_CalcQZ(p,q,xCtr,yCtr,sdd,lam,data_realDistX,data_realDistY)
306                endif   
307       
308       
309        else
310        // using the old calculation with beam center in pixels
311                if(gUseNonLinearDet && WaveExists(data_realDistX) && WaveExists(data_realDistY))
312                        // convert the beam centers to mm
313//                      String orientation
314                        Variable newX,newY
315                        dimX = DimSize(data_realDistX,0)
316                        dimY = DimSize(data_realDistX,1)
317                        if(dimX > dimY)
318                                orientation = "horizontal"
319                        else
320                                orientation = "vertical"
321                        endif
322                       
323               
324                //
325                        if(cmpstr(orientation,"vertical")==0)
326                                //      this is data dimensioned as (Ntubes,Npix)
327                                newX = tube_width*xCtr
328                                newY = data_realDistY[0][yCtr]
329                        else
330                                //      this is data (horizontal) dimensioned as (Npix,Ntubes)
331                                newX = data_realDistX[xCtr][0]
332                                newY = tube_width*yCtr
333                        endif   
334       
335                        //if detector "B", different calculation for the centers (not tubes)
336                        if(cmpstr(detStr,"B")==0)
337                                newX = data_realDistX[xCtr][0]
338                                newY = data_realDistY[0][yCtr]
339                                //newX = xCtr
340                                //newY = yCtr
341                        endif           
342                                       
343                        // calculate all of the q-values
344                        qTot = V_CalcQval(p,q,newX,newY,sdd,lam,data_realDistX,data_realDistY)
345                        qx = V_CalcQX(p,q,newX,newY,sdd,lam,data_realDistX,data_realDistY)
346                        qy = V_CalcQY(p,q,newX,newY,sdd,lam,data_realDistX,data_realDistY)
347                        qz = V_CalcQZ(p,q,newX,newY,sdd,lam,data_realDistX,data_realDistY)
348               
349        //              Print "det, x_mm, y_mm ",detStr,num2str(newX),num2str(newY)
350        //              Print "det, x_pix, y_pix ",detStr,num2str(xCtr),num2str(yCtr)
351                else
352                        // do the q-calculation using linear detector
353                        VC_Detector_2Q(data,qTot,qx,qy,qz,xCtr,yCtr,sdd,lam,pixSizeX,pixSizeY)
354                endif   
355       
356        endif
357       
358        KillWaves/Z tmpCalib,tmpCalibX,tmpCalibY
359       
360        return(0)
361End
362
363
364//////////////////////
365// NOTE: The Q calculations are different than what is in GaussUtils in that they take into
366// accout the different x/y pixel sizes and the beam center not being on the detector -
367// off a different edge for each LRTB type
368/////////////////////
369
370//function to calculate the overall q-value, given all of the necesary trig inputs
371//and are in detector coordinates (1,128) rather than axis values
372//the pixel locations need not be integers, reals are ok inputs
373//sdd is in [cm]
374//wavelength is in Angstroms
375//
376//returned magnitude of Q is in 1/Angstroms
377//
378//
379Function VC_CalcQval(xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
380        Variable xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY
381       
382        Variable dx,dy,qval,two_theta,dist
383               
384
385        dx = (xaxval - xctr)*pixSizeX           //delta x in cm
386        dy = (yaxval - yctr)*pixSizeY           //delta y in cm
387        dist = sqrt(dx^2 + dy^2)
388       
389        two_theta = atan(dist/sdd)
390
391        qval = 4*Pi/lam*sin(two_theta/2)
392       
393        return qval
394End
395
396//calculates just the q-value in the x-direction on the detector
397//input/output is the same as CalcQval()
398//ALL inputs are in detector coordinates
399//
400//sdd is in [cm]
401//wavelength is in Angstroms
402//
403// repaired incorrect qx and qy calculation 3 dec 08 SRK (Lionel and C. Dewhurst)
404// now properly accounts for qz
405//
406Function VC_CalcQX(xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
407        Variable xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY
408
409        Variable qx,qval,phi,dx,dy,dist,two_theta
410       
411        qval = VC_CalcQval(xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
412       
413//      sdd *=100               //convert to cm
414        dx = (xaxval - xctr)*pixSizeX           //delta x in cm
415        dy = (yaxval - yctr)*pixSizeY           //delta y in cm
416        phi = V_FindPhi(dx,dy)
417       
418        //get scattering angle to project onto flat detector => Qr = qval*cos(theta)
419        dist = sqrt(dx^2 + dy^2)
420        two_theta = atan(dist/sdd)
421
422        qx = qval*cos(two_theta/2)*cos(phi)
423       
424        return qx
425End
426
427//calculates just the q-value in the y-direction on the detector
428//input/output is the same as CalcQval()
429//ALL inputs are in detector coordinates
430//sdd is in [cm]
431//wavelength is in Angstroms
432//
433// repaired incorrect qx and qy calculation 3 dec 08 SRK (Lionel and C. Dewhurst)
434// now properly accounts for qz
435//
436Function VC_CalcQY(xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
437        Variable xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY
438       
439        Variable dy,qval,dx,phi,qy,dist,two_theta
440       
441        qval = VC_CalcQval(xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
442       
443//      sdd *=100               //convert to cm
444        dx = (xaxval - xctr)*pixSizeX           //delta x in cm
445        dy = (yaxval - yctr)*pixSizeY           //delta y in cm
446        phi = V_FindPhi(dx,dy)
447       
448        //get scattering angle to project onto flat detector => Qr = qval*cos(theta)
449        dist = sqrt(dx^2 + dy^2)
450        two_theta = atan(dist/sdd)
451       
452        qy = qval*cos(two_theta/2)*sin(phi)
453       
454        return qy
455End
456
457//calculates just the z-component of the q-vector, not measured on the detector
458//input/output is the same as CalcQval()
459//ALL inputs are in detector coordinates
460//sdd is in [cm]
461//wavelength is in Angstroms
462//
463// not actually used, but here for completeness if anyone asks
464//
465Function VC_CalcQZ(xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
466        Variable xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY
467       
468        Variable dy,qval,dx,phi,qz,dist,two_theta
469       
470        qval = VC_CalcQval(xaxval,yaxval,xctr,yctr,sdd,lam,pixSizeX,pixSizeY)
471       
472//      sdd *=100               //convert to cm
473       
474        //get scattering angle to project onto flat detector => Qr = qval*cos(theta)
475        dx = (xaxval - xctr)*pixSizeX           //delta x in cm
476        dy = (yaxval - yctr)*pixSizeY           //delta y in cm
477        dist = sqrt(dx^2 + dy^2)
478        two_theta = atan(dist/sdd)
479       
480        qz = qval*sin(two_theta/2)
481       
482        return qz
483End
484
485//phi is defined from +x axis, proceeding CCW around [0,2Pi]
486Threadsafe Function V_FindPhi(vx,vy)
487        variable vx,vy
488       
489        variable phi
490       
491        phi = atan(vy/vx)               //returns a value from -pi/2 to pi/2
492       
493        // special cases
494        if(vx==0 && vy > 0)
495                return(pi/2)
496        endif
497        if(vx==0 && vy < 0)
498                return(3*pi/2)
499        endif
500        if(vx >= 0 && vy == 0)
501                return(0)
502        endif
503        if(vx < 0 && vy == 0)
504                return(pi)
505        endif
506       
507       
508        if(vx > 0 && vy > 0)
509                return(phi)
510        endif
511        if(vx < 0 && vy > 0)
512                return(phi + pi)
513        endif
514        if(vx < 0 && vy < 0)
515                return(phi + pi)
516        endif
517        if( vx > 0 && vy < 0)
518                return(phi + 2*pi)
519        endif
520       
521        return(phi)
522end
523
524Function VC_SphereForm(scale,radius,delrho,bkg,x)                               
525        Variable scale,radius,delrho,bkg
526        Variable x
527       
528        // variables are:                                                       
529        //[0] scale
530        //[1] radius (A)
531        //[2] delrho (A-2)
532        //[3] background (cm-1)
533       
534//      Variable scale,radius,delrho,bkg                               
535//      scale = w[0]
536//      radius = w[1]
537//      delrho = w[2]
538//      bkg = w[3]
539       
540       
541        // calculates scale * f^2/Vol where f=Vol*3*delrho*((sin(qr)-qrcos(qr))/qr^3
542        // and is rescaled to give [=] cm^-1
543       
544        Variable bes,f,vol,f2
545        //
546        //handle q==0 separately
547        If(x==0)
548                f = 4/3*pi*radius^3*delrho*delrho*scale*1e8 + bkg
549                return(f)
550        Endif
551       
552//      bes = 3*(sin(x*radius)-x*radius*cos(x*radius))/x^3/radius^3
553       
554        bes = 3*sqrt(pi/(2*x*radius))*BesselJ(1.5,x*radius)/(x*radius)
555       
556        vol = 4*pi/3*radius^3
557        f = vol*bes*delrho              // [=] A
558        // normalize to single particle volume, convert to 1/cm
559        f2 = f * f / vol * 1.0e8                // [=] 1/cm
560       
561        return (scale*f2+bkg)   // Scale, then add in the background
562       
563End
564
565Function VC_Debye(scale,rg,bkg,x)
566        Variable scale,rg,bkg
567        Variable x
568       
569        // variables are:
570        //[0] scale factor
571        //[1] radius of gyration [A]
572        //[2] background        [cm-1]
573       
574        // calculates (scale*debye)+bkg
575        Variable Pq,qr2
576       
577        qr2=(x*rg)^2
578        Pq = 2*(exp(-(qr2))-1+qr2)/qr2^2
579       
580        //scale
581        Pq *= scale
582        // then add in the background
583        return (Pq+bkg)
584End
585
586// a sum of a power law and debye to approximate the scattering from a real empty cell
587//
588//      make/O/D coef_ECEmp = {2.2e-8,3.346,0.0065,9.0,0.016}
589//
590Function VC_EC_Empirical(aa,mm,scale,rg,bkg,x)
591        Variable aa,mm,scale,rg,bkg
592        Variable x
593       
594        // variables are:
595        //[0] = A
596        //[1] = power m
597        //[2] scale factor
598        //[3] radius of gyration [A]
599        //[4] background        [cm-1]
600       
601        Variable Iq
602       
603        // calculates (scale*debye)+bkg
604        Variable Pq,qr2
605       
606//      if(x*Rg < 1e-3)         //added Oct 2008 to avoid numerical errors at low arg values
607//              return(scale+bkg)
608//      endif
609       
610        Iq = aa*x^-mm
611       
612        qr2=(x*rg)^2
613        Pq = 2*(exp(-(qr2))-1+qr2)/qr2^2
614       
615        //scale
616        Pq *= scale
617        // then add the terms up
618        return (Iq + Pq + bkg)
619End
620
621// blocked beam
622//
623Function VC_BlockedBeam(bkg,x)
624        Variable bkg
625        Variable x
626       
627        return (bkg)
628End
629
630
631//
632// a broad peak to simulate silver behenate or vycor
633//
634// peak @ 0.1 ~ AgBeh
635//      Make/O/D coef_BroadPeak = {1e-9, 3, 20, 100.0, 0.1,3,0.1}               
636//
637//
638// peak @ 0.015 in middle of middle detector, maybe not "real" vycor, but that is to be resolved
639//      Make/O/D coef_BroadPeak = {1e-9, 3, 20, 500.0, 0.015,3,0.1}             
640//
641//
642Function VC_BroadPeak(aa,nn,cc,LL,Qzero,mm,bgd,x)
643        Variable aa,nn,cc,LL,Qzero,mm,bgd
644        Variable x
645       
646        // variables are:                                                       
647        //[0] Porod term scaling
648        //[1] Porod exponent
649        //[2] Lorentzian term scaling
650        //[3] Lorentzian screening length [A]
651        //[4] peak location [1/A]
652        //[5] Lorentzian exponent
653        //[6] background
654       
655//      local variables
656        Variable inten, qval
657//      x is the q-value for the calculation
658        qval = x
659//      do the calculation and return the function value
660       
661        inten = aa/(qval)^nn + cc/(1 + (abs(qval-Qzero)*LL)^mm) + bgd
662
663        Return (inten)
664       
665End
666
667//
668// updated to new folder structure Feb 2016
669// folderStr = RAW,SAM, VCALC or other
670// detStr is the panel identifer "ML", etc.
671//
672Function V_SetDeltaQ(folderStr,detStr)
673        String folderStr,detStr
674
675        Variable isVCALC
676        if(cmpstr(folderStr,"VCALC") == 0)
677                isVCALC = 1
678        endif
679       
680        String folderPath = "root:Packages:NIST:VSANS:"+folderStr
681        String instPath = ":entry:instrument:detector_"
682               
683        if(isVCALC)
684                WAVE inten = $(folderPath+instPath+detStr+":det_"+detStr)               // 2D detector data
685        else
686                Wave inten = V_getDetectorDataW(folderStr,detStr)
687        endif
688
689        Wave qx = $(folderPath+instPath+detStr+":qx_"+detStr)
690        Wave qy = $(folderPath+instPath+detStr+":qy_"+detStr)
691       
692        Variable xDim,yDim,delQ
693       
694        xDim=DimSize(inten,0)
695        yDim=DimSize(inten,1)
696       
697        if(xDim<yDim)
698                delQ = abs(qx[0][0] - qx[1][0])/2
699        else
700                delQ = abs(qy[0][1] - qy[0][0])/2
701        endif
702       
703        // set the global
704        Variable/G $(folderPath+instPath+detStr+":gDelQ_"+detStr) = delQ
705//      Print "SET delQ = ",delQ," for ",type
706       
707        return(delQ)
708end
709
710
711//TODO -- need a switch here to dispatch to the averaging type
712Proc VC_BinQxQy_to_1D(folderStr,type)
713        String folderStr
714        String type
715//      Prompt folderStr,"Pick the data folder containing 2D data",popup,getAList(4)
716//      Prompt type,"detector identifier"
717
718
719        VC_fDoBinning_QxQy2D(folderStr, type)
720
721
722/// this is for a tall, narrow slit mode       
723//      VC_fBinDetector_byRows(folderStr,type)
724       
725End
726
727
728// folderStr is RAW, VCALC, SAM, etc.
729// type is "B", "FL" for single binning, "FLR", or "MLRTB" or similar if multiple panels are combined
730//
731Proc VC_Graph_1D_detType(folderStr,type)
732        String folderStr,type
733       
734        SetDataFolder $("root:Packages:NIST:VSANS:"+folderStr)
735       
736        Display $("iBin_qxqy"+"_"+type) vs $("qBin_qxqy"+"_"+type)
737        ModifyGraph mirror=2,grid=1,log=1
738        ModifyGraph mode=4,marker=19,msize=2
739//      ErrorBars/T=0 iBin_qxqy Y,wave=(eBin2D_qxqy,eBin2D_qxqy)                // for simulations, I don't have 2D uncertainty
740        ErrorBars/T=0 $("iBin_qxqy"+"_"+type) Y,wave=($("eBin_qxqy"+"_"+type),$("eBin_qxqy"+"_"+type))
741        legend
742       
743        SetDataFolder root:
744
745End
746
747
748
749//////////
750//
751//              Function that bins a 2D detctor panel into I(q) based on the q-value of the pixel
752//              - each pixel QxQyQz has been calculated beforehand
753//              - if multiple panels are selected to be combined, it is done here during the binning
754//              - the setting of deltaQ step is still a little suspect (TODO)
755//
756//
757// see the equivalent function in PlotUtils2D_v40.ipf
758//
759//Function fDoBinning_QxQy2D(inten,qx,qy,qz)
760//
761// this has been modified to accept different detector panels and to take arrays
762// -- type = FL or FR or...other panel identifiers
763//
764// TODO "iErr" is not always defined correctly since it doesn't really apply here for data that is not 2D simulation
765//
766//
767// updated Feb2016 to take new folder structure
768// TODO
769// -- VERIFY
770// -- figure out what the best location is to put the averaged data? currently @ top level of WORK folder
771//    but this is a lousy choice.
772// x- binning is now Mask-aware. If mask is not present, all data is used. If data is from VCALC, all data is used
773// x- Where do I put the solid angle correction? In here as a weight for each point, or later on as
774//    a blanket correction (matrix multiply) for an entire panel? (Solid Angle correction is done in the
775//    step where data is added to a WORK file (see Raw_to_Work())
776//
777//
778// TODO:
779// -- some of the input parameters for the resolution calcuation are either assumed (apOff) or are currently
780//    hard-wired. these need to be corrected before even the pinhole resolution is correct
781// x- resolution calculation is in the correct place. The calculation is done per-panel (specified by TYPE),
782//    and then the unwanted points can be discarded (all 6 columns) as the data is trimmed and concatenated
783//    is separate functions that are resolution-aware.
784//
785//
786// folderStr = WORK folder, type = the binning type (may include multiple detectors)
787Function VC_fDoBinning_QxQy2D(folderStr,type,collimationStr)
788        String folderStr,type,collimationStr
789       
790        Variable nSets = 0
791        Variable xDim,yDim
792        Variable ii,jj
793        Variable qVal,nq,var,avesq,aveisq
794        Variable binIndex,val,isVCALC=0,maskMissing
795
796        String folderPath = "root:Packages:NIST:VSANS:"+folderStr
797        String instPath = ":entry:instrument:detector_"
798        String detStr
799               
800        if(cmpstr(folderStr,"VCALC") == 0)
801                isVCALC = 1
802        endif
803       
804        detStr = type
805
806// now switch on the type to determine which waves to declare and create
807// since there may be more than one panel to step through. There may be two, there may be four
808//
809
810// TODO:
811// -- Solid_Angle -- waves will be present for WORK data other than RAW, but not for RAW
812//
813// assume that the mask files are missing unless we can find them. If VCALC data,
814//  then the Mask is missing by definition
815        maskMissing = 1
816
817        strswitch(type) // string switch
818//              case "FL":              // execute if case matches expression
819//              case "FR":
820//                      detStr = type
821//                      if(isVCALC)
822//                              WAVE inten = $(folderPath+instPath+detStr+":det_"+detStr)
823//                              WAVE/Z iErr = $("iErr_"+detStr)                 // 2D errors -- may not exist, especially for simulation
824//                      else
825//                              Wave inten = V_getDetectorDataW(folderStr,detStr)
826//                              Wave iErr = V_getDetectorDataErrW(folderStr,detStr)
827//                              Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+detStr+":data")
828//                              if(WaveExists(mask) == 1)
829//                                      maskMissing = 0
830//                              endif
831//                             
832//                      endif
833//                      NVAR delQ = $(folderPath+instPath+detStr+":gDelQ_"+detStr)
834//                      Wave qTotal = $(folderPath+instPath+detStr+":qTot_"+detStr)                     // 2D q-values
835//                      nSets = 1
836//                      break   
837                                                               
838//              case "FT":             
839//              case "FB":
840//                      detStr = type
841//                      if(isVCALC)
842//                              WAVE inten = $(folderPath+instPath+detStr+":det_"+detStr)
843//                              WAVE/Z iErr = $("iErr_"+detStr)                 // 2D errors -- may not exist, especially for simulation               
844//                      else
845//                              Wave inten = V_getDetectorDataW(folderStr,detStr)
846//                              Wave iErr = V_getDetectorDataErrW(folderStr,detStr)
847//                              Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+detStr+":data")
848//                              if(WaveExists(mask) == 1)
849//                                      maskMissing = 0
850//                              endif
851//                      endif
852//                      NVAR delQ = $(folderPath+instPath+detStr+":gDelQ_"+detStr)
853//                      Wave qTotal = $(folderPath+instPath+detStr+":qTot_"+detStr)                     // 2D q-values
854//                      nSets = 1
855//                      break
856                       
857//              case "ML":             
858//              case "MR":
859//                      detStr = type
860//                      if(isVCALC)
861//                              WAVE inten = $(folderPath+instPath+detStr+":det_"+detStr)
862//                              WAVE/Z iErr = $("iErr_"+detStr)                 // 2D errors -- may not exist, especially for simulation               
863//                      else
864//                              Wave inten = V_getDetectorDataW(folderStr,detStr)
865//                              Wave iErr = V_getDetectorDataErrW(folderStr,detStr)
866//                              Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+detStr+":data")
867//                              if(WaveExists(mask) == 1)
868//                                      maskMissing = 0
869//                              endif
870//                      endif   
871//                      //TODO:
872//                      // -- decide on the proper deltaQ for binning. either nominal value for LR, or one
873//                      //    determined specifically for that panel (currently using one tube width as deltaQ)
874//                      // -- this is repeated multiple times in this switch
875//                      NVAR delQ = $(folderPath+instPath+detStr+":gDelQ_"+detStr)
876//                      Wave qTotal = $(folderPath+instPath+detStr+":qTot_"+detStr)                     // 2D q-values
877//                      nSets = 1
878//                      break   
879                                       
880//              case "MT":             
881//              case "MB":
882//                      detStr = type
883//                      if(isVCALC)
884//                              WAVE inten = $(folderPath+instPath+detStr+":det_"+detStr)
885//                              WAVE/Z iErr = $("iErr_"+detStr)                 // 2D errors -- may not exist, especially for simulation               
886//                      else
887//                              Wave inten = V_getDetectorDataW(folderStr,detStr)
888//                              Wave iErr = V_getDetectorDataErrW(folderStr,detStr)
889//                              Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+detStr+":data")
890//                              if(WaveExists(mask) == 1)
891//                                      maskMissing = 0
892//                              endif
893//                      endif   
894//                      NVAR delQ = $(folderPath+instPath+detStr+":gDelQ_"+detStr)
895//                      Wave qTotal = $(folderPath+instPath+detStr+":qTot_"+detStr)                     // 2D q-values
896//                      nSets = 1
897//                      break   
898
899// only one panel, simply pick that panel and move on out of the switch
900                case "FL":
901                case "FR":
902                case "FT":
903                case "FB":
904                case "ML":
905                case "MR":
906                case "MT":
907                case "MB":                     
908                case "B":       
909                        if(isVCALC)
910                                WAVE inten = $(folderPath+instPath+detStr+":det_"+detStr)
911                                WAVE/Z iErr = $("iErr_"+detStr)                 // 2D errors -- may not exist, especially for simulation               
912                        else
913                                Wave inten = V_getDetectorDataW(folderStr,detStr)
914                                Wave iErr = V_getDetectorDataErrW(folderStr,detStr)
915                                Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+detStr+":data")
916                                if(WaveExists(mask) == 1)
917                                        maskMissing = 0
918                                endif
919                        endif   
920                        NVAR delQ = $(folderPath+instPath+detStr+":gDelQ_"+detStr)
921                        Wave qTotal = $(folderPath+instPath+detStr+":qTot_"+detStr)                     // 2D q-values 
922                        nSets = 1
923                        break   
924                       
925                case "FLR":
926                // detStr has multiple values now, so unfortuntely, I'm hard-wiring things...
927                // TODO
928                // -- see if I can un-hard-wire some of this below when more than one panel is combined
929                        if(isVCALC)
930                                WAVE inten = $(folderPath+instPath+"FL"+":det_"+"FL")
931                                WAVE/Z iErr = $("iErr_"+"FL")                   // 2D errors -- may not exist, especially for simulation               
932                                WAVE inten2 = $(folderPath+instPath+"FR"+":det_"+"FR")
933                                WAVE/Z iErr2 = $("iErr_"+"FR")                  // 2D errors -- may not exist, especially for simulation       
934                        else
935                                Wave inten = V_getDetectorDataW(folderStr,"FL")
936                                Wave iErr = V_getDetectorDataErrW(folderStr,"FL")
937                                Wave inten2 = V_getDetectorDataW(folderStr,"FR")
938                                Wave iErr2 = V_getDetectorDataErrW(folderStr,"FR")
939                                Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"FL"+":data")
940                                Wave/Z mask2 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"FR"+":data")
941                                if(WaveExists(mask) == 1 && WaveExists(mask2) == 1)
942                                        maskMissing = 0
943                                endif
944                        endif   
945                        NVAR delQ = $(folderPath+instPath+"FL"+":gDelQ_FL")
946                       
947                        Wave qTotal = $(folderPath+instPath+"FL"+":qTot_"+"FL")                 // 2D q-values 
948                        Wave qTotal2 = $(folderPath+instPath+"FR"+":qTot_"+"FR")                        // 2D q-values 
949               
950                        nSets = 2
951                        break                   
952               
953                case "FTB":
954                        if(isVCALC)
955                                WAVE inten = $(folderPath+instPath+"FT"+":det_"+"FT")
956                                WAVE/Z iErr = $("iErr_"+"FT")                   // 2D errors -- may not exist, especially for simulation               
957                                WAVE inten2 = $(folderPath+instPath+"FB"+":det_"+"FB")
958                                WAVE/Z iErr2 = $("iErr_"+"FB")                  // 2D errors -- may not exist, especially for simulation       
959                        else
960                                Wave inten = V_getDetectorDataW(folderStr,"FT")
961                                Wave iErr = V_getDetectorDataErrW(folderStr,"FT")
962                                Wave inten2 = V_getDetectorDataW(folderStr,"FB")
963                                Wave iErr2 = V_getDetectorDataErrW(folderStr,"FB")
964                                Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"FT"+":data")
965                                Wave/Z mask2 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"FB"+":data")
966                                if(WaveExists(mask) == 1 && WaveExists(mask2) == 1)
967                                        maskMissing = 0
968                                endif
969                        endif   
970                        NVAR delQ = $(folderPath+instPath+"FT"+":gDelQ_FT")
971                       
972                        Wave qTotal = $(folderPath+instPath+"FT"+":qTot_"+"FT")                 // 2D q-values 
973                        Wave qTotal2 = $(folderPath+instPath+"FB"+":qTot_"+"FB")                        // 2D q-values 
974       
975                        nSets = 2
976                        break           
977               
978                case "FLRTB":
979                        if(isVCALC)
980                                WAVE inten = $(folderPath+instPath+"FL"+":det_"+"FL")
981                                WAVE/Z iErr = $("iErr_"+"FL")                   // 2D errors -- may not exist, especially for simulation               
982                                WAVE inten2 = $(folderPath+instPath+"FR"+":det_"+"FR")
983                                WAVE/Z iErr2 = $("iErr_"+"FR")                  // 2D errors -- may not exist, especially for simulation       
984                                WAVE inten3 = $(folderPath+instPath+"FT"+":det_"+"FT")
985                                WAVE/Z iErr3 = $("iErr_"+"FT")                  // 2D errors -- may not exist, especially for simulation               
986                                WAVE inten4 = $(folderPath+instPath+"FB"+":det_"+"FB")
987                                WAVE/Z iErr4 = $("iErr_"+"FB")                  // 2D errors -- may not exist, especially for simulation       
988                        else
989                                Wave inten = V_getDetectorDataW(folderStr,"FL")
990                                Wave iErr = V_getDetectorDataErrW(folderStr,"FL")
991                                Wave inten2 = V_getDetectorDataW(folderStr,"FR")
992                                Wave iErr2 = V_getDetectorDataErrW(folderStr,"FR")
993                                Wave inten3 = V_getDetectorDataW(folderStr,"FT")
994                                Wave iErr3 = V_getDetectorDataErrW(folderStr,"FT")
995                                Wave inten4 = V_getDetectorDataW(folderStr,"FB")
996                                Wave iErr4 = V_getDetectorDataErrW(folderStr,"FB")
997                                Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"FL"+":data")
998                                Wave/Z mask2 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"FR"+":data")
999                                Wave/Z mask3 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"FT"+":data")
1000                                Wave/Z mask4 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"FB"+":data")
1001                                if(WaveExists(mask) == 1 && WaveExists(mask2) == 1 && WaveExists(mask3) == 1 && WaveExists(mask4) == 1)
1002                                        maskMissing = 0
1003                                endif
1004                        endif   
1005                        NVAR delQ = $(folderPath+instPath+"FL"+":gDelQ_FL")
1006                       
1007                        Wave qTotal = $(folderPath+instPath+"FL"+":qTot_"+"FL")                 // 2D q-values 
1008                        Wave qTotal2 = $(folderPath+instPath+"FR"+":qTot_"+"FR")                        // 2D q-values 
1009                        Wave qTotal3 = $(folderPath+instPath+"FT"+":qTot_"+"FT")                        // 2D q-values 
1010                        Wave qTotal4 = $(folderPath+instPath+"FB"+":qTot_"+"FB")                        // 2D q-values 
1011               
1012                        nSets = 4
1013                        break           
1014                       
1015                case "MLR":
1016                        if(isVCALC)
1017                                WAVE inten = $(folderPath+instPath+"ML"+":det_"+"ML")
1018                                WAVE/Z iErr = $("iErr_"+"ML")                   // 2D errors -- may not exist, especially for simulation               
1019                                WAVE inten2 = $(folderPath+instPath+"MR"+":det_"+"MR")
1020                                WAVE/Z iErr2 = $("iErr_"+"MR")                  // 2D errors -- may not exist, especially for simulation       
1021                        else
1022                                Wave inten = V_getDetectorDataW(folderStr,"ML")
1023                                Wave iErr = V_getDetectorDataErrW(folderStr,"ML")
1024                                Wave inten2 = V_getDetectorDataW(folderStr,"MR")
1025                                Wave iErr2 = V_getDetectorDataErrW(folderStr,"MR")
1026                                Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"ML"+":data")
1027                                Wave/Z mask2 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"MR"+":data")
1028                                if(WaveExists(mask) == 1 && WaveExists(mask2) == 1)
1029                                        maskMissing = 0
1030                                endif
1031                        endif   
1032                        NVAR delQ = $(folderPath+instPath+"ML"+":gDelQ_ML")
1033                       
1034                        Wave qTotal = $(folderPath+instPath+"ML"+":qTot_"+"ML")                 // 2D q-values 
1035                        Wave qTotal2 = $(folderPath+instPath+"MR"+":qTot_"+"MR")                        // 2D q-values 
1036               
1037                        nSets = 2
1038                        break                   
1039               
1040                case "MTB":
1041                        if(isVCALC)
1042                                WAVE inten = $(folderPath+instPath+"MT"+":det_"+"MT")
1043                                WAVE/Z iErr = $("iErr_"+"MT")                   // 2D errors -- may not exist, especially for simulation               
1044                                WAVE inten2 = $(folderPath+instPath+"MB"+":det_"+"MB")
1045                                WAVE/Z iErr2 = $("iErr_"+"MB")                  // 2D errors -- may not exist, especially for simulation       
1046                        else
1047                                Wave inten = V_getDetectorDataW(folderStr,"MT")
1048                                Wave iErr = V_getDetectorDataErrW(folderStr,"MT")
1049                                Wave inten2 = V_getDetectorDataW(folderStr,"MB")
1050                                Wave iErr2 = V_getDetectorDataErrW(folderStr,"MB")
1051                                Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"MT"+":data")
1052                                Wave/Z mask2 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"MB"+":data")
1053                                if(WaveExists(mask) == 1 && WaveExists(mask2) == 1)
1054                                        maskMissing = 0
1055                                endif
1056                        endif   
1057                        NVAR delQ = $(folderPath+instPath+"MT"+":gDelQ_MT")
1058                       
1059                        Wave qTotal = $(folderPath+instPath+"MT"+":qTot_"+"MT")                 // 2D q-values 
1060                        Wave qTotal2 = $(folderPath+instPath+"MB"+":qTot_"+"MB")                        // 2D q-values 
1061               
1062                        nSets = 2
1063                        break                           
1064               
1065                case "MLRTB":
1066                        if(isVCALC)
1067                                WAVE inten = $(folderPath+instPath+"ML"+":det_"+"ML")
1068                                WAVE/Z iErr = $("iErr_"+"ML")                   // 2D errors -- may not exist, especially for simulation               
1069                                WAVE inten2 = $(folderPath+instPath+"MR"+":det_"+"MR")
1070                                WAVE/Z iErr2 = $("iErr_"+"MR")                  // 2D errors -- may not exist, especially for simulation       
1071                                WAVE inten3 = $(folderPath+instPath+"MT"+":det_"+"MT")
1072                                WAVE/Z iErr3 = $("iErr_"+"MT")                  // 2D errors -- may not exist, especially for simulation               
1073                                WAVE inten4 = $(folderPath+instPath+"MB"+":det_"+"MB")
1074                                WAVE/Z iErr4 = $("iErr_"+"MB")                  // 2D errors -- may not exist, especially for simulation       
1075                        else
1076                                Wave inten = V_getDetectorDataW(folderStr,"ML")
1077                                Wave iErr = V_getDetectorDataErrW(folderStr,"ML")
1078                                Wave inten2 = V_getDetectorDataW(folderStr,"MR")
1079                                Wave iErr2 = V_getDetectorDataErrW(folderStr,"MR")
1080                                Wave inten3 = V_getDetectorDataW(folderStr,"MT")
1081                                Wave iErr3 = V_getDetectorDataErrW(folderStr,"MT")
1082                                Wave inten4 = V_getDetectorDataW(folderStr,"MB")
1083                                Wave iErr4 = V_getDetectorDataErrW(folderStr,"MB")
1084                                Wave/Z mask = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"ML"+":data")
1085                                Wave/Z mask2 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"MR"+":data")
1086                                Wave/Z mask3 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"MT"+":data")
1087                                Wave/Z mask4 = $("root:Packages:NIST:VSANS:MSK:entry:instrument:detector_"+"MB"+":data")
1088                                if(WaveExists(mask) == 1 && WaveExists(mask2) == 1 && WaveExists(mask3) == 1 && WaveExists(mask4) == 1)
1089                                        maskMissing = 0
1090                                endif
1091                        endif   
1092                        NVAR delQ = $(folderPath+instPath+"ML"+":gDelQ_ML")
1093                       
1094                        Wave qTotal = $(folderPath+instPath+"ML"+":qTot_"+"ML")                 // 2D q-values 
1095                        Wave qTotal2 = $(folderPath+instPath+"MR"+":qTot_"+"MR")                        // 2D q-values 
1096                        Wave qTotal3 = $(folderPath+instPath+"MT"+":qTot_"+"MT")                        // 2D q-values 
1097                        Wave qTotal4 = $(folderPath+instPath+"MB"+":qTot_"+"MB")                        // 2D q-values 
1098               
1099                        nSets = 4
1100                        break                                                                   
1101                                       
1102                default:
1103                        nSets = 0                                                       
1104                        Print "ERROR   ---- type is not recognized "
1105        endswitch
1106
1107//      Print "delQ = ",delQ," for ",type
1108
1109        if(nSets == 0)
1110                SetDataFolder root:
1111                return(0)
1112        endif
1113
1114
1115// RAW data is currently read in and the 2D error wave is correctly generated
1116// 2D error is propagated through all reduction steps, but I have not
1117// verified that it is an exact duplication of the 1D error
1118//
1119//
1120//
1121// IF ther is no 2D error wave present for some reason, make a fake one
1122        if(WaveExists(iErr)==0  && WaveExists(inten) != 0)
1123                Duplicate/O inten,iErr
1124                Wave iErr=iErr
1125//              iErr = 1+sqrt(inten+0.75)                       // can't use this -- it applies to counts, not intensity (already a count rate...)
1126                iErr = sqrt(inten+0.75)                 // TODO -- here I'm just using some fictional value
1127        endif
1128        if(WaveExists(iErr2)==0 && WaveExists(inten2) != 0)
1129                Duplicate/O inten2,iErr2
1130                Wave iErr2=iErr2
1131//              iErr2 = 1+sqrt(inten2+0.75)                     // can't use this -- it applies to counts, not intensity (already a count rate...)
1132                iErr2 = sqrt(inten2+0.75)                       // TODO -- here I'm just using some fictional value
1133        endif
1134        if(WaveExists(iErr3)==0  && WaveExists(inten3) != 0)
1135                Duplicate/O inten3,iErr3
1136                Wave iErr3=iErr3
1137//              iErr3 = 1+sqrt(inten3+0.75)                     // can't use this -- it applies to counts, not intensity (already a count rate...)
1138                iErr3 = sqrt(inten3+0.75)                       // TODO -- here I'm just using some fictional value
1139        endif
1140        if(WaveExists(iErr4)==0  && WaveExists(inten4) != 0)
1141                Duplicate/O inten4,iErr4
1142                Wave iErr4=iErr4
1143//              iErr4 = 1+sqrt(inten4+0.75)                     // can't use this -- it applies to counts, not intensity (already a count rate...)
1144                iErr4 = sqrt(inten4+0.75)                       // TODO -- here I'm just using some fictional value
1145        endif
1146
1147        // TODO -- nq will need to be larger, once the back detector is installed
1148        //
1149        // note that the back panel of 320x320 (1mm res) results in 447 data points!
1150        // - so I upped nq to 600
1151
1152        if(cmpstr(type,"B") == 0)
1153                nq = 8000
1154        else
1155                nq=600
1156        endif
1157
1158//******TODO****** -- where to put the averaged data -- right now, folderStr is forced to ""   
1159//      SetDataFolder $("root:"+folderStr)              //should already be here, but make sure...     
1160        Make/O/D/N=(nq)  $(folderPath+":"+"iBin_qxqy"+"_"+type)
1161        Make/O/D/N=(nq)  $(folderPath+":"+"qBin_qxqy"+"_"+type)
1162        Make/O/D/N=(nq)  $(folderPath+":"+"nBin_qxqy"+"_"+type)
1163        Make/O/D/N=(nq)  $(folderPath+":"+"iBin2_qxqy"+"_"+type)
1164        Make/O/D/N=(nq)  $(folderPath+":"+"eBin_qxqy"+"_"+type)
1165        Make/O/D/N=(nq)  $(folderPath+":"+"eBin2D_qxqy"+"_"+type)
1166       
1167        Wave iBin_qxqy = $(folderPath+":"+"iBin_qxqy_"+type)
1168        Wave qBin_qxqy = $(folderPath+":"+"qBin_qxqy"+"_"+type)
1169        Wave nBin_qxqy = $(folderPath+":"+"nBin_qxqy"+"_"+type)
1170        Wave iBin2_qxqy = $(folderPath+":"+"iBin2_qxqy"+"_"+type)
1171        Wave eBin_qxqy = $(folderPath+":"+"eBin_qxqy"+"_"+type)
1172        Wave eBin2D_qxqy = $(folderPath+":"+"eBin2D_qxqy"+"_"+type)
1173       
1174       
1175//      delQ = abs(sqrt(qx[2]^2+qy[2]^2+qz[2]^2) - sqrt(qx[1]^2+qy[1]^2+qz[1]^2))               //use bins of 1 pixel width
1176// TODO: not sure if I want to set dQ in x or y direction...
1177        // the short dimension is the 8mm tubes, use this direction as dQ?
1178        // but don't use the corner of the detector, since dQ will be very different on T/B or L/R due to the location of [0,0]
1179        // WRT the beam center. use qx or qy directly. Still not happy with this way...
1180
1181
1182        qBin_qxqy[] =  p*delQ   
1183        SetScale/P x,0,delQ,"",qBin_qxqy                //allows easy binning
1184
1185        iBin_qxqy = 0
1186        iBin2_qxqy = 0
1187        eBin_qxqy = 0
1188        eBin2D_qxqy = 0
1189        nBin_qxqy = 0   //number of intensities added to each bin
1190
1191// now there are situations of:
1192// 1 panel
1193// 2 panels
1194// 4 panels
1195//
1196// this needs to be a double loop now...
1197// TODO:
1198// -- the iErr (=2D) wave and accumulation of error is NOT CALCULATED CORRECTLY YET
1199// -- verify the 2D error propagation by reducing it to 1D error
1200//
1201//
1202// The 1D error does not use iErr, and IS CALCULATED CORRECTLY
1203//
1204// x- the solid angle per pixel will be present for WORK data other than RAW, but not for RAW
1205
1206//
1207// if any of the masks don't exist, display the error, and proceed with the averaging, using all data
1208        if(maskMissing == 1)
1209                Print "Mask file not found for at least one detector - so all data is used"
1210        endif
1211       
1212        NVAR gIgnoreDetB = root:Packages:NIST:VSANS:Globals:gIgnoreDetB
1213        if(gIgnoreDetB && cmpstr(type,"B") == 0)
1214                maskMissing = 1
1215                Print "Mask skipped for B due to possible mismatch (Panel B ignored in preferences)"
1216        endif
1217
1218        Variable mask_val
1219// use set 1 (no number) only
1220        if(nSets >= 1)
1221                xDim=DimSize(inten,0)
1222                yDim=DimSize(inten,1)
1223       
1224                for(ii=0;ii<xDim;ii+=1)
1225                        for(jj=0;jj<yDim;jj+=1)
1226                                //qTot = sqrt(qx[ii]^2 + qy[ii]^2+ qz[ii]^2)
1227                                qVal = qTotal[ii][jj]
1228                                binIndex = trunc(x2pnt(qBin_qxqy, qVal))
1229                                val = inten[ii][jj]
1230                               
1231                                if(isVCALC || maskMissing)              // mask_val == 0 == keep, mask_val == 1 = YES, mask out the point
1232                                        mask_val = 0
1233                                else
1234                                        mask_val = mask[ii][jj]
1235                                endif
1236                                if (numType(val)==0 && mask_val == 0)           //count only the good points, ignore Nan or Inf
1237                                        iBin_qxqy[binIndex] += val
1238                                        iBin2_qxqy[binIndex] += val*val
1239                                        eBin2D_qxqy[binIndex] += iErr[ii][jj]*iErr[ii][jj]
1240                                        nBin_qxqy[binIndex] += 1
1241                                endif
1242                        endfor
1243                endfor
1244               
1245        endif
1246
1247// add in set 2 (set 1 already done)
1248        if(nSets >= 2)
1249                xDim=DimSize(inten2,0)
1250                yDim=DimSize(inten2,1)
1251       
1252                for(ii=0;ii<xDim;ii+=1)
1253                        for(jj=0;jj<yDim;jj+=1)
1254                                //qTot = sqrt(qx[ii]^2 + qy[ii]^2+ qz[ii]^2)
1255                                qVal = qTotal2[ii][jj]
1256                                binIndex = trunc(x2pnt(qBin_qxqy, qVal))
1257                                val = inten2[ii][jj]
1258                               
1259                                if(isVCALC || maskMissing)
1260                                        mask_val = 0
1261                                else
1262                                        mask_val = mask2[ii][jj]
1263                                endif
1264                                if (numType(val)==0 && mask_val == 0)           //count only the good points, ignore Nan or Inf
1265                                        iBin_qxqy[binIndex] += val
1266                                        iBin2_qxqy[binIndex] += val*val
1267                                        eBin2D_qxqy[binIndex] += iErr2[ii][jj]*iErr2[ii][jj]
1268                                        nBin_qxqy[binIndex] += 1
1269                                endif
1270                        endfor
1271                endfor
1272               
1273        endif
1274
1275// add in set 3 and 4 (set 1 and 2 already done)
1276        if(nSets == 4)
1277                xDim=DimSize(inten3,0)
1278                yDim=DimSize(inten3,1)
1279       
1280                for(ii=0;ii<xDim;ii+=1)
1281                        for(jj=0;jj<yDim;jj+=1)
1282                                //qTot = sqrt(qx[ii]^2 + qy[ii]^2+ qz[ii]^2)
1283                                qVal = qTotal3[ii][jj]
1284                                binIndex = trunc(x2pnt(qBin_qxqy, qVal))
1285                                val = inten3[ii][jj]
1286                               
1287                                if(isVCALC || maskMissing)
1288                                        mask_val = 0
1289                                else
1290                                        mask_val = mask3[ii][jj]
1291                                endif
1292                                if (numType(val)==0 && mask_val == 0)           //count only the good points, ignore Nan or Inf
1293                                        iBin_qxqy[binIndex] += val
1294                                        iBin2_qxqy[binIndex] += val*val
1295                                        eBin2D_qxqy[binIndex] += iErr3[ii][jj]*iErr3[ii][jj]
1296                                        nBin_qxqy[binIndex] += 1
1297                                endif
1298                        endfor
1299                endfor
1300               
1301               
1302                xDim=DimSize(inten4,0)
1303                yDim=DimSize(inten4,1)
1304       
1305                for(ii=0;ii<xDim;ii+=1)
1306                        for(jj=0;jj<yDim;jj+=1)
1307                                //qTot = sqrt(qx[ii]^2 + qy[ii]^2+ qz[ii]^2)
1308                                qVal = qTotal4[ii][jj]
1309                                binIndex = trunc(x2pnt(qBin_qxqy, qVal))
1310                                val = inten4[ii][jj]
1311                               
1312                                if(isVCALC || maskMissing)
1313                                        mask_val = 0
1314                                else
1315                                        mask_val = mask4[ii][jj]
1316                                endif
1317                                if (numType(val)==0 && mask_val == 0)           //count only the good points, ignore Nan or Inf
1318                                        iBin_qxqy[binIndex] += val
1319                                        iBin2_qxqy[binIndex] += val*val
1320                                        eBin2D_qxqy[binIndex] += iErr4[ii][jj]*iErr4[ii][jj]
1321                                        nBin_qxqy[binIndex] += 1
1322                                endif
1323                        endfor
1324                endfor
1325               
1326        endif
1327
1328
1329// after looping through all of the data on the panels, calculate errors on I(q),
1330// just like in CircSectAve.ipf
1331// TODO:
1332// -- 2D Errors were (maybe) properly acculumated through reduction, so this loop of calculations is NOT VERIFIED (yet)
1333// x- the error on the 1D intensity, is correctly calculated as the standard error of the mean.
1334        for(ii=0;ii<nq;ii+=1)
1335                if(nBin_qxqy[ii] == 0)
1336                        //no pixels in annuli, data unknown
1337                        iBin_qxqy[ii] = 0
1338                        eBin_qxqy[ii] = 1
1339                        eBin2D_qxqy[ii] = NaN
1340                else
1341                        if(nBin_qxqy[ii] <= 1)
1342                                //need more than one pixel to determine error
1343                                iBin_qxqy[ii] /= nBin_qxqy[ii]
1344                                eBin_qxqy[ii] = 1
1345                                eBin2D_qxqy[ii] /= (nBin_qxqy[ii])^2
1346                        else
1347                                //assume that the intensity in each pixel in annuli is normally distributed about mean...
1348                                //  -- this is correctly calculating the error as the standard error of the mean, as
1349                                //    was always done for SANS as well.
1350                                iBin_qxqy[ii] /= nBin_qxqy[ii]
1351                                avesq = iBin_qxqy[ii]^2
1352                                aveisq = iBin2_qxqy[ii]/nBin_qxqy[ii]
1353                                var = aveisq-avesq
1354                                if(var<=0)
1355                                        eBin_qxqy[ii] = 1e-6
1356                                else
1357                                        eBin_qxqy[ii] = sqrt(var/(nBin_qxqy[ii] - 1))
1358                                endif
1359                                // and calculate as it is propagated pixel-by-pixel
1360                                eBin2D_qxqy[ii] /= (nBin_qxqy[ii])^2
1361                        endif
1362                endif
1363        endfor
1364       
1365        eBin2D_qxqy = sqrt(eBin2D_qxqy)         // as equation (3) of John's memo
1366       
1367        // find the last non-zero point, working backwards
1368        val=nq
1369        do
1370                val -= 1
1371        while((nBin_qxqy[val] == 0) && val > 0)
1372       
1373//      print val, nBin_qxqy[val]
1374        DeletePoints val, nq-val, iBin_qxqy,qBin_qxqy,nBin_qxqy,iBin2_qxqy,eBin_qxqy,eBin2D_qxqy
1375
1376        if(val == 0)
1377                // all the points were deleted
1378                return(0)
1379        endif
1380       
1381       
1382        // since the beam center is not always on the detector, many of the low Q bins will have zero pixels
1383        // find the first non-zero point, working forwards
1384        val = -1
1385        do
1386                val += 1
1387        while(nBin_qxqy[val] == 0)     
1388        DeletePoints 0, val, iBin_qxqy,qBin_qxqy,nBin_qxqy,iBin2_qxqy,eBin_qxqy,eBin2D_qxqy
1389
1390        // ?? there still may be a point in the q-range that gets zero pixel contribution - so search this out and get rid of it
1391        val = numpnts(nBin_qxqy)-1
1392        do
1393                if(nBin_qxqy[val] == 0)
1394                        DeletePoints val, 1, iBin_qxqy,qBin_qxqy,nBin_qxqy,iBin2_qxqy,eBin_qxqy,eBin2D_qxqy
1395                endif
1396                val -= 1
1397        while(val>0)
1398
1399// utility function to remove NaN values from the waves
1400        V_RemoveNaNsQIS(qBin_qxqy, iBin_qxqy, eBin_qxqy)
1401
1402       
1403        // TODO:
1404        // -- This is where I calculate the resolution in SANS (see CircSectAve)
1405        // -- use the isVCALC flag to exclude VCALC from the resolution calculation if necessary
1406        // -- from the top of the function, folderStr = work folder, type = "FLRTB" or other type of averaging
1407        //
1408        nq = numpnts(qBin_qxqy)
1409        Make/O/D/N=(nq)  $(folderPath+":"+"sigmaQ_qxqy"+"_"+type)
1410        Make/O/D/N=(nq)  $(folderPath+":"+"qBar_qxqy"+"_"+type)
1411        Make/O/D/N=(nq)  $(folderPath+":"+"fSubS_qxqy"+"_"+type)
1412        Wave sigmaq = $(folderPath+":"+"sigmaQ_qxqy_"+type)
1413        Wave qbar = $(folderPath+":"+"qBar_qxqy_"+type)
1414        Wave fsubs = $(folderPath+":"+"fSubS_qxqy_"+type)
1415                               
1416
1417        Variable ret1,ret2,ret3
1418        Variable lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses
1419
1420// TODO: check the units of all of the inputs
1421
1422// lambda = wavelength [A]
1423        lambda = V_getWavelength(folderStr)
1424       
1425// lambdaWidth = [dimensionless]
1426        lambdaWidth = V_getWavelength_spread(folderStr)
1427       
1428// DDet = detector pixel resolution [cm]        **assumes square pixel
1429        // V_getDet_pixel_fwhm_x(folderStr,detStr)
1430        // V_getDet_pixel_fwhm_y(folderStr,detStr)
1431//      DDet = 0.8              // TODO -- this is hard-wired
1432
1433        if(strlen(type) == 1)
1434                // it's "B"
1435                DDet = V_getDet_pixel_fwhm_x(folderStr,type)            // value is already in cm
1436        else
1437                DDet = V_getDet_pixel_fwhm_x(folderStr,type[0,1])               // value is already in cm
1438        endif
1439               
1440// apOff = sample aperture to sample distance [cm]
1441        apOff = 10              // TODO -- this is hard-wired
1442       
1443// S1 = source aperture diameter [mm]
1444// may be either circle or rectangle
1445        String s1_shape="",bs_shape=""
1446        Variable width,height,equiv_S1,equiv_bs
1447       
1448       
1449        s1_shape = V_getSourceAp_shape(folderStr)
1450        if(cmpstr(s1_shape,"CIRCLE") == 0)
1451                S1 = str2num(V_getSourceAp_size(folderStr))
1452        else
1453                S1 = V_getSourceAp_height(folderStr)            // TODO: need the width or at least an equivalent diameter
1454        endif
1455       
1456       
1457// S2 = sample aperture diameter [cm]
1458// as of 3/2018, the "internal" sample aperture is not in use, only the external
1459// TODO : verify the units on the Ap2 (external)
1460// sample aperture 1(internal) is set to report "12.7 mm" as a STRING
1461// sample aperture 2(external) reports the number typed in...
1462//
1463// so I'm trusting [cm] is in the file
1464        S2 = V_getSampleAp2_size(folderStr)*10          // sample ap 1 or 2? 2 = the "external", convert to [mm]
1465       
1466// L1 = source to sample distance [m]
1467        L1 = V_getSourceAp_distance(folderStr)/100
1468
1469// L2 = sample to detector distance [m]
1470// take the first two characters of the "type" to get the correct distance.
1471// if the type is say, MLRTB, then the implicit assumption in combining all four panels is that the resolution
1472// is not an issue for the slightly different distances.
1473        if(strlen(type) == 1)
1474                // it's "B"
1475                L2 = V_getDet_ActualDistance(folderStr,type)/100                //convert cm to m
1476        else
1477                L2 = V_getDet_ActualDistance(folderStr,type[0,1])/100           //convert cm to m
1478        endif
1479       
1480// BS = beam stop diameter [mm]
1481//TODO:? which BS is in? carr2, carr3, none?
1482// -- need to check the detector, num_beamstops field, then description, then shape/size or shape/height and shape/width
1483//
1484// TODO: the values in the file are incorrect!!! BS = 1000 mm diameter!!!
1485        BS = V_DeduceBeamstopDiameter(folderStr,type)           //returns diameter in [mm]
1486//      BS = V_getBeamStopC2_size(folderStr)            // Units are [mm]
1487//      BS = 25.4                       //TODO hard-wired value
1488       
1489//      bs_shape = V_getBeamStopC2_shape(folderStr)
1490//      if(cmpstr(s1_shape,"CIRCLE") == 0)
1491//              bs = V_getBeamStopC2_size(folderStr)
1492//      else
1493//              bs = V_getBeamStopC2_height(folderStr) 
1494//      endif
1495
1496
1497       
1498// del_r = step size [mm] = binWidth*(mm/pixel)
1499        del_r = 1*DDet*10               // TODO: this is probably not the correct value
1500
1501// usingLenses = flag for lenses = 0 if no lenses, non-zero if lenses are in-beam
1502        usingLenses = 0
1503
1504if(cmpstr(detStr,"FL")==0)
1505        Print "(FL) Resolution lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses"
1506        Print lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses
1507endif
1508
1509
1510// TODO:
1511// this is the point where I need to switch on the different collimation types (white beam, slit, Xtal, etc)
1512// to calculate the correct resolution, or fill the waves with the correct "flags"
1513//
1514
1515// For white beam data, the wavelength distribution can't be represented as a gaussian, but all of the other
1516//  geometric corrections still apply. Passing zero for the lambdaWidth will return the geometry contribution,
1517//  as long as the wavelength can be handled separately. It appears to be correct to do as a double integral,
1518//  with the inner(lambda) calculated first, then the outer(geometry).
1519//
1520
1521// possible values are:
1522//
1523// pinhole
1524// pinhole_whiteBeam
1525// convergingPinholes
1526//
1527// *slit data should be reduced using the slit routine, not here, proceed but warn
1528// narrowSlit
1529// narrowSlit_whiteBeam
1530
1531        if(cmpstr(collimationStr,"pinhole") == 0)
1532
1533                ii=0
1534                do
1535                        V_getResolution(qBin_qxqy[ii],lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses,ret1,ret2,ret3)
1536                        sigmaq[ii] = ret1       
1537                        qbar[ii] = ret2
1538                        fsubs[ii] = ret3       
1539                        ii+=1
1540                while(ii<nq)
1541       
1542        endif
1543       
1544
1545        if(cmpstr(collimationStr,"pinhole_whiteBeam") == 0)
1546
1547//              set lambdaWidth == 0 so that the gaussian resolution calculates only the geometry contribution.
1548// the white beam distribution will need to be flagged some other way
1549//
1550                lambdaWidth = 0
1551               
1552                ii=0
1553                do
1554                        V_getResolution(qBin_qxqy[ii],lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses,ret1,ret2,ret3)
1555                        sigmaq[ii] = ret1       
1556                        qbar[ii] = ret2
1557                        fsubs[ii] = ret3       
1558                        ii+=1
1559                while(ii<nq)
1560       
1561        endif
1562
1563        if(cmpstr(collimationStr,"convergingPinholes") == 0)
1564
1565//              set usingLenses == 1 so that the Gaussian resolution calculation will be for a focus condition
1566//
1567                usingLenses = 1
1568               
1569                ii=0
1570                do
1571                        V_getResolution(qBin_qxqy[ii],lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses,ret1,ret2,ret3)
1572                        sigmaq[ii] = ret1       
1573                        qbar[ii] = ret2
1574                        fsubs[ii] = ret3       
1575                        ii+=1
1576                while(ii<nq)
1577       
1578        endif
1579
1580
1581// should not end up here, except for odd testing cases
1582        if(cmpstr(collimationStr,"narrowSlit") == 0)
1583
1584                Print "??? Slit data is being averaged as pinhole - reset the AVERAGE parameters in the protocol ???"
1585                ii=0
1586                do
1587                        V_getResolution(qBin_qxqy[ii],lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses,ret1,ret2,ret3)
1588                        sigmaq[ii] = ret1       
1589                        qbar[ii] = ret2
1590                        fsubs[ii] = ret3       
1591                        ii+=1
1592                while(ii<nq)
1593       
1594        endif
1595       
1596// should not end up here, except for odd testing cases
1597        if(cmpstr(collimationStr,"narrowSlit_whiteBeam") == 0)
1598
1599//              set lambdaWidth == 0 so that the gaussian resolution calculates only the geometry contribution.
1600// the white beam distribution will need to be flagged some other way
1601//
1602                Print "??? Slit data is being averaged as pinhole - reset the AVERAGE parameters in the protocol ???"
1603
1604                lambdaWidth = 0
1605               
1606                ii=0
1607                do
1608                        V_getResolution(qBin_qxqy[ii],lambda,lambdaWidth,DDet,apOff,S1,S2,L1,L2,BS,del_r,usingLenses,ret1,ret2,ret3)
1609                        sigmaq[ii] = ret1       
1610                        qbar[ii] = ret2
1611                        fsubs[ii] = ret3       
1612                        ii+=1
1613                while(ii<nq)
1614       
1615        endif
1616
1617
1618
1619               
1620        SetDataFolder root:
1621       
1622        return(0)
1623End
1624
1625
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