Model-Mixin parameters in JF12Mixin can now be accessed via an attribute.

imagine/observers/hammurapy/model_mixins/jf12_mixin.py

@@ -4,20 +4,28 @@ from imagine.magnetic_fields.jf12_magnetic_field import JF12MagneticField
 
 
 class JF12Mixin(object):
+    def __init__(self, hammurabi_executable, conf_directory='./confs',
+                 working_directory_base='.', nside=128):
+        self.__parameter_dict = {'B_field_type': '7',
+                                 'B_field_do_random': 'T',
+                                 'B_analytic_beta': '1.36',
+                                 'B_field_RMS_uG': '1',
+                                 'B_field_interp': 'T',
+                                 'use_B_analytic': 'F',
+                                 'B_ran_mem_lim': '4',
+                                 'obs_freq_GHz': '23'}
+        super(JF12Mixin, self).__init__(hammurabi_executable,
+                                        conf_directory,
+                                        working_directory_base,
+                                        nside)
+
     @property
     def magnetic_field_class(self):
         return JF12MagneticField
 
     def _build_parameter_dict(self, parameter_dict, magnetic_field,
                               working_directory, local_ensemble_index):
-        parameter_dict.update({'B_field_type': '7',
-                               'B_field_do_random': 'T',
-                               'B_analytic_beta': '1.36',
-                               'B_field_RMS_uG': '1',
-                               'B_field_interp': 'T',
-                               'use_B_analytic': 'F',
-                               'B_ran_mem_lim': '4',
-                               'obs_freq_GHz': '23'})
+        parameter_dict.update(self.__parameter_dict)
 
         parameter_dict.update(magnetic_field.parameters)