Changeset 396 for trunk/GSASIIimage.py

Timestamp:

Oct 20, 2011 11:38:12 AM (12 years ago)

Author:

vondreele

Message:

make image calibration 0-360 (not -180-180) to match usual integration range
shift bins to center from corner - fixes "wiggle" in integration

File:

• trunk/GSASIIimage.py (modified) (3 diffs)

trunk/GSASIIimage.py

@@ -214 +214 @@
     sphi = sind(phi)
     ring = []
-    amin = 180
-    amax = -180
-    for a in range(-180,180,1):
+    amin = 0
+    amax = 360
+    for a in range(0,360,1):
         x = radii[0]*cosd(a)
         y = radii[1]*sind(a)
@@ -337 +337 @@
     dsp = wave/(2.*npsind(tth/2.))
     azm = (npatan2d(dx,-dy)+azmthoff+720.)%360.
-    azm = np.where(azm>180,azm-360.,azm)
     return tth,azm,dsp
     
@@ -568 +567 @@
     scaley = pixelSize[1]/1000.
     
-#    tay,tax = np.mgrid[iLim[0]+0.5:iLim[1]+.5,jLim[0]+.5:jLim[1]+.5]         #bin centers not corners
-    tay,tax = np.mgrid[iLim[0]:iLim[1],jLim[0]:jLim[1]]         #bin corners
+    tay,tax = np.mgrid[iLim[0]+0.5:iLim[1]+.5,jLim[0]+.5:jLim[1]+.5]         #bin centers not corners
     tax = np.asfarray(tax*scalex,dtype=np.float32)
     tay = np.asfarray(tay*scaley,dtype=np.float32)