fix: Bug in datx openfilefunction

     Improved convergence info of conic fit

heightmap.py

@@ -153,7 +153,6 @@ class HeightMap(object):
             datfile=ZygoXYZ.XYZfile()
         elif Path(filename).suffix==".datx":
             datfile=ZygoDatx.DatxFile()
-            datfile.info()
         else:
             print("Unknown file type:", Path(filename).suffix)
             return False

processing.py

@@ -363,7 +363,21 @@ def fit_conic_cylinder(xin,yin,z, guess=None,variability=(0,1,1,1,0,1)):
             i+=1
     print('initial parameters',initparam)
     result=scipy.optimize.least_squares(residuals, initparam,method='lm')
-    print('optimisation status', result.status)
+    if result.status == -1:
+        endmsg="Badinput parameters"
+    elif result.status == 0:
+        endmsg="Convergence not reached"
+    elif result.status == 1:
+        endmsg="Gradient convergence stalling"
+    elif result.status == 2:
+        endmsg="Cost function minimized"
+    elif result.status == 3:
+        endmsg="Parameter convergence stalling"
+    elif result.status == 4:
+        endmsg="cost function and pameter convergence"
+    
+    print('optimisation status', result.status, endmsg)
+    
     print('parameters', tuple(result.x))
     print('cost value', result.cost)
     ze=np.ma.array(np.zeros(z.shape), mask=z.mask)