- updated the UI in Geometry UI

- optimized the order of the defaults storage declaration and the update of the Preferences GUI from the defaults

flatcamTools/ToolDistance.py

@@ -34,7 +34,7 @@ class Distance(FlatCAMTool):
 
         self.app = app
         self.canvas = self.app.plotcanvas
-        self.units = self.app.ui.general_defaults_form.general_app_group.units_radio.get_value().lower()
+        self.units = self.app.defaults['units'].lower()
 
         # ## Title
         title_label = QtWidgets.QLabel("<font size=4><b>%s</b></font><br>" % self.toolName)

flatcamTools/ToolDistanceMin.py

@@ -35,7 +35,7 @@ class DistanceMin(FlatCAMTool):
 
         self.app = app
         self.canvas = self.app.plotcanvas
-        self.units = self.app.ui.general_defaults_form.general_app_group.units_radio.get_value().lower()
+        self.units = self.app.defaults['units'].lower()
 
         # ## Title
         title_label = QtWidgets.QLabel("<font size=4><b>%s</b></font><br>" % self.toolName)

flatcamTools/ToolNonCopperClear.py

@@ -421,7 +421,7 @@ class NonCopperClear(FlatCAMTool, Gerber):
         self.ncc_offset_spinner.set_precision(4)
         self.ncc_offset_spinner.setWrapping(True)
 
-        units = self.app.ui.general_defaults_form.general_app_group.units_radio.get_value().upper()
+        units = self.app.defaults['units'].upper()
         if units == 'MM':
             self.ncc_offset_spinner.setSingleStep(0.1)
         else:

flatcamTools/ToolOptimal.py

@@ -39,7 +39,7 @@ class ToolOptimal(FlatCAMTool):
     def __init__(self, app):
         FlatCAMTool.__init__(self, app)
 
-        self.units = self.app.ui.general_defaults_form.general_app_group.units_radio.get_value().upper()
+        self.units = self.app.defaults['units'].upper()
         self.decimals = 4
 
         # ############################################################################