- fixed an error in Gerber Parser; the initial values for currnet_x, current_y were None but should have been 0.0

- limited the lower limit of angle of V-tip to a value of 1 because 0 makes no sense

README.md

@@ -13,6 +13,8 @@ CAD program, and create G-Code for Isolation routing.
 
 - fixed issue #376 where the V-Shape parameters from Gerber UI are not transfered to the resulting Geometry object if the 'combine' checkbox is not checked in the Gerber UI
 - in Excellon UI, if Basic application mode is selected in Preferences, the Plot column 'P' is hidden now because some inexperienced users mistake this column checkboxes for tool selection
+- fixed an error in Gerber Parser; the initial values for currnet_x, current_y were None but should have been 0.0
+- limited the lower limit of angle of V-tip to a value of 1 because 0 makes no sense 
 
 31.01.2020
 

flatcamGUI/ObjectUI.py

@@ -327,7 +327,7 @@ class GerberObjectUI(ObjectUI):
               "In degree.")
         )
         self.tipangle_spinner = FCDoubleSpinner()
-        self.tipangle_spinner.set_range(0, 180)
+        self.tipangle_spinner.set_range(1, 180)
         self.tipangle_spinner.set_precision(self.decimals)
         self.tipangle_spinner.setSingleStep(5)
         self.tipangle_spinner.setWrapping(True)
@@ -1628,7 +1628,7 @@ class GeometryObjectUI(ObjectUI):
         )
         self.tipangle_entry = FCDoubleSpinner()
         self.tipangle_entry.set_precision(self.decimals)
-        self.tipangle_entry.set_range(0.0, 180.0)
+        self.tipangle_entry.set_range(1.0, 180.0)
         self.tipangle_entry.setSingleStep(1)
 
         self.grid3.addWidget(self.tipanglelabel, 2, 0)

flatcamGUI/PreferencesUI.py

@@ -2235,7 +2235,7 @@ class GerberAdvOptPrefGroupUI(OptionsGroupUI):
               "In degree.")
         )
         self.tipangle_spinner = FCSpinner()
-        self.tipangle_spinner.set_range(0, 180)
+        self.tipangle_spinner.set_range(1, 180)
         self.tipangle_spinner.setSingleStep(5)
         self.tipangle_spinner.setWrapping(True)
         grid0.addWidget(self.tipanglelabel, 5, 0)
@@ -5065,7 +5065,7 @@ class ToolsNCCPrefGroupUI(OptionsGroupUI):
               "In degree."))
         self.tipangle_entry = FCDoubleSpinner()
         self.tipangle_entry.set_precision(self.decimals)
-        self.tipangle_entry.set_range(-360, 360)
+        self.tipangle_entry.set_range(1, 180)
         self.tipangle_entry.setSingleStep(5)
         self.tipangle_entry.setWrapping(True)
 
@@ -5615,7 +5615,7 @@ class ToolsPaintPrefGroupUI(OptionsGroupUI):
               "In degree."))
         self.tipangle_entry = FCDoubleSpinner()
         self.tipangle_entry.set_precision(self.decimals)
-        self.tipangle_entry.set_range(0.0000, 180.0000)
+        self.tipangle_entry.set_range(1.0000, 180.0000)
         self.tipangle_entry.setSingleStep(5)
         self.tipangle_entry.setObjectName(_("V-Tip Angle"))
 

flatcamParsers/ParseGerber.py

@@ -394,10 +394,10 @@ class Gerber(Geometry):
         current_operation_code = None
 
         # Current coordinates
-        current_x = None
-        current_y = None
-        previous_x = None
-        previous_y = None
+        current_x = 0
+        current_y = 0
+        previous_x = 0
+        previous_y = 0
 
         current_d = None