Changeset 1164

Timestamp:

Dec 9, 2013 11:29:41 AM (8 years ago)

Author:

vondreele

Message:

Good image calibration in all cases thus far tested

File:

• trunk/GSASIIimage.py (modified) (10 diffs)

trunk/GSASIIimage.py

@@ -281 +281 @@
     delt = amax-amin
     if len(ring) < 10:             #want more than 10 deg
-        return [],(delt > 90),0
-    return ring,(delt > 90),sumI/len(ring)
+        return [],(delt > 90)
+    return ring,(delt > 90)
     
 def GetEllipse2(tth,dxy,dist,cent,tilt,phi):
@@ -525 +525 @@
             break
         ellipse = GetEllipse(dsp,data)
-        Ring,delt,sumI = makeRing(dsp,ellipse,pixLimit,cutoff,scalex,scaley,ma.array(self.ImageZ,mask=tam))
+        Ring,delt = makeRing(dsp,ellipse,pixLimit,cutoff,scalex,scaley,ma.array(self.ImageZ,mask=tam))
         if Ring:
             if iH >= skip:
@@ -582 +582 @@
         
     #setup 360 points on that ring for "good" fit
-    Ring,delt,sumI = makeRing(1.0,ellipse,pixLimit,cutoff,scalex,scaley,self.ImageZ)
+    Ring,delt = makeRing(1.0,ellipse,pixLimit,cutoff,scalex,scaley,self.ImageZ)
     if Ring:
         ellipse,err = FitRing(Ring,delt)
-        Ring,delt,sumI = makeRing(1.0,ellipse,pixLimit,cutoff,scalex,scaley,self.ImageZ)    #do again
+        Ring,delt = makeRing(1.0,ellipse,pixLimit,cutoff,scalex,scaley,self.ImageZ)    #do again
         ellipse,err = FitRing(Ring,delt)
     else:
@@ -617 +617 @@
     dsp = HKL[0][3]
     tth = 2.0*asind(wave/(2.*dsp))
+    Ring0 = makeRing(dsp,ellipse,3,cutoff,scalex,scaley,self.ImageZ)[0]
     ttth = nptand(tth)
     stth = npsind(tth)
@@ -631 +632 @@
     zdisp = radii[1]*ttth*tand(tilt)
     zdism = radii[1]*ttth*tand(-tilt)
-    print 'zdis',zdisp,zdism
 #cone axis position; 2 choices. Which is right?
     centp = [elcent[0]+zdisp*sind(phi),elcent[1]+zdisp*cosd(phi)]
     centm = [elcent[0]+zdism*sind(phi),elcent[1]+zdism*cosd(phi)]
-    print 'cent',centp,centm
 #check get same ellipse parms either way
-#now do next ring; estimate either way & check sum of Imax/Imin in 3x3 block around each point
+#now do next ring; estimate either way & do a FitDetector each way; best fit is correct one
     dsp = HKL[1][3]
     tth = 2.0*asind(wave/(2.*dsp))
     ellipsep = GetEllipse2(tth,0.,dist,centp,tilt,phi)
-#    data['ellipses'].append(copy.deepcopy(ellipsep+('g',)))
-    Ringp,delt,sumIp = makeRing(dsp,ellipsep,3,cutoff,scalex,scaley,self.ImageZ)
+    ellipsem = GetEllipse2(tth,0.,dist,centm,-tilt,phi)
+    Ringp = makeRing(dsp,ellipsep,3,cutoff,scalex,scaley,self.ImageZ)[0]
+    Ringm = makeRing(dsp,ellipsem,3,cutoff,scalex,scaley,self.ImageZ)[0]
+    parmDict = {'dist':dist,'det-X':centp[0],'det-Y':centp[1],
+        'tilt':tilt,'phi':phi,'wave':wave,'dep':0.0}
+    varyList = ['dist','det-X','det-Y','tilt','phi']
     if len(Ringp) > 10:
-        outEp,errp = FitRing(Ringp,True)
+        chip,chisqp = FitDetector(np.array(Ring0+Ringp),varyList,parmDict,False)
     else:
-        errp = 1e6
-    print '+',sumIp,errp
-    ellipsem = GetEllipse2(tth,0.,dist,centm,-tilt,phi)
-#    data['ellipses'].append(copy.deepcopy(ellipsem+('r',)))
-    Ringm,delt,sumIm = makeRing(dsp,ellipsem,3,cutoff,scalex,scaley,self.ImageZ)
+        chip = 1e6
     if len(Ringm) > 10:
-        outEm,errm = FitRing(Ringm,True)
+        parmDict['tilt'] *= -1
+        chim,chisqm = FitDetector(np.array(Ring0+Ringm),varyList,parmDict,False)
     else:
-        errm = 1e6
-    print '-',sumIm,errm
-#    if errp < errm:
-    if sumIp > sumIm:
+        chim = 1e6
+    if chip < chim:
         data['tilt'] = tilt
         data['center'] = centp
-        negTilt = 1
     else:
         data['tilt'] = -tilt
         data['center'] = centm
-        negTilt = -1
     data['rotation'] = phi
     parmDict = {'dist':data['distance'],'det-X':data['center'][0],'det-Y':data['center'][1],
@@ -671 +667 @@
     if data['DetDepthRef']:
         varyList.append('dep')
+    data['rings'] = []
     for i,H in enumerate(HKL):
         dsp = H[3]
@@ -681 +678 @@
         data['ellipses'].append(copy.deepcopy(ellipse+('g',)))
         print fmt%('predicted ellipse:',elcent[0],elcent[1],phi,radii[0],radii[1])
-        Ring,delt,sumI = makeRing(dsp,ellipse,pixLimit,cutoff,scalex,scaley,self.ImageZ)
+        Ring,delt = makeRing(dsp,ellipse,pixLimit,cutoff,scalex,scaley,self.ImageZ)
         if Ring:
             data['rings'].append(np.array(Ring))
@@ -689 +686 @@
                 data['distance'] = parmDict['dist']
                 data['center'] = [parmDict['det-X'],parmDict['det-Y']]
-                data['rotation'] = np.mod(parmDict['phi'],360.0)
+                data['rotation'] = np.mod(parmDict['phi']+720.,360.0)
                 data['tilt'] = parmDict['tilt']
+                if data['rotation'] >180.:
+                    data['rotation'] -= 180.
+                    data['tilt'] *= -1.
                 data['DetDepth'] = parmDict['dep']
                 elcent,phi,radii = ellipse = GetEllipse(dsp,data)
@@ -707 +707 @@
         data['distance'] = parmDict['dist']
         data['center'] = [parmDict['det-X'],parmDict['det-Y']]
-        data['rotation'] = np.mod(parmDict['phi'],360.0)
+        data['rotation'] = np.mod(parmDict['phi']+720.,360.0)
         data['tilt'] = parmDict['tilt']
+        if data['rotation'] >180.:
+            data['rotation'] -= 180.
+            data['tilt'] *= -1.
         data['DetDepth'] = parmDict['dep']
     for H in HKL[:N]:
@@ -860 +863 @@
     for ring in StrSta['d-zero']:       #get observed x,y,d points for the d-zeros
         ellipse = GetEllipse(ring['Dset'],StaControls)
-        Ring,delt,sumI = makeRing(ring['Dset'],ellipse,ring['pixLimit'],ring['cutoff'],scalex,scaley,Image)
+        Ring,delt = makeRing(ring['Dset'],ellipse,ring['pixLimit'],ring['cutoff'],scalex,scaley,Image)
         Ring = np.array(Ring).T
         ring['ImxyObs'] = np.array(Ring[:2])      #need to apply masks to this to eliminate bad points