use new c'tor in export_galaxi.py (untested because broken elsewhere)

rawEx/fit/scatter2d/expfit_galaxi.py

@@ -90,18 +90,18 @@ def get_sample(P):
 
     return sample
 
-def create_detector():
+def create_detector(beam):
     """
     A model of the GALAXY detector
     """
-    u0 = beam_xpos*pilatus_pixel_size  # in mm
-    v0 = beam_ypos*pilatus_pixel_size  # in mm
-    detector = ba.FlatDetector(pilatus_npx,
-                                      pilatus_npx*pilatus_pixel_size,
-                                      pilatus_npy,
-                                      pilatus_npy*pilatus_pixel_size)
-    detector.setPerpendicularToDirectBeam(detector_distance, u0, v0)
-    return detector
+    n = pilatus_npx
+    s = pilatus_pixel_size
+    w = n*s
+    u0 = beam_xpos*s  # in mm
+    v0 = beam_ypos*s  # in mm
+    return ba.FlatDetector(
+        n, n, w, w, beam, ba.FlatDetector.T, detector_distance,
+        0, 0, 0, u0 - w/2, v0 - w/2)
 
 
 def create_simulation(P):
@@ -110,7 +110,7 @@ def create_simulation(P):
     """
     beam = ba.Beam(1.2e7, wavelength, alpha_i)
     sample = get_sample(P)
-    detector = create_detector()
+    detector = create_detector(beam)
     simulation = ba.ScatteringSimulation(beam, sample, detector)
 
     simulation.setRegionOfInterest(85, 70, 120, 92.)