_pd_calib.2theta_offset in parameters for display

proper handling of error format in experiment cif

Author: rozyczko

src/easydiffraction/io/cif_reader.py

@@ -121,8 +121,12 @@ def parameters_from_cif_block(block) -> dict:
         parameters['reflex_asymmetry_p3']['value'], parameters['reflex_asymmetry_p3']['error'] = parse_with_error(value)
     value = block.find_value('_pd_instr_reflex_asymmetry_p4') or block.find_value('_pd_instr.reflex_asymmetry_p4')
     if value is not None:
-        parameters['reflex_asymmetry_p3'] = {}
-        parameters['reflex_asymmetry_p3']['value'], parameters['reflex_asymmetry_p3']['error'] = parse_with_error(value)
+        parameters['reflex_asymmetry_p4'] = {}
+        parameters['reflex_asymmetry_p4']['value'], parameters['reflex_asymmetry_p4']['error'] = parse_with_error(value)
+    value = block.find_value('_pd_calib_2theta_offset') or block.find_value('_pd_calib.2theta_offset')
+    if value is not None:
+        parameters['zero_shift'] = {}
+        parameters['zero_shift']['value'], parameters['zero_shift']['error'] = parse_with_error(value)
 
     # ToF
     value = (
@@ -313,5 +317,6 @@ def parse_with_error(value: str) -> tuple:
         if not error:
             return float(value), 0.0  # 1.23()
         else:
-            return float(value), float(error)  # 1.23(4)
+            err = (10 ** -(len(f'{value}'.split('.')[1]) - 1)) * int(error)
+            return float(value), err
     return float(value), None  # 1.23