script/align/SimpleDemo.py

@@ -0,0 +1,33 @@
+################################################################################################### 
+# Simple alignment example
+################################################################################################### 
+
+
+from mathutils import *
+from plotutils import * 
+
+scan_range = 2.0
+step_size = 0.1
+
+r = lscan(motor,sinp,-scan_range,scan_range,[step_size,],relative=True)
+
+p=get_plots()[0]
+p.setLegendVisible(True)
+y = r[sinp]
+x = r[motor]
+
+fit_pars = (offset, normalization, mean_val, sigma) = fit_gaussian_offset(y, x)
+print fit_pars
+
+if (mean_val is not None):
+    gaussian = GaussianOffset(*fit_pars)    
+    plot_function(p, gaussian, "Fit" , x)
+    
+#Fitting error
+if mean_val is None or  mean_val<x[0]  or  mean_val>x[-1]:   
+    mean_val= x[y.index(max(y))]    
+    print "Fitting error - using max value"
+
+    
+p.addMarker(mean_val, None, "Mean=" + str(round(mean_val,2)), Color.LIGHT_GRAY)
+motor.move(mean_val)