Remove some testing code from gerber writer. More implementation for excellon writer - not working yet

gerber/excellon_statements.py

@@ -220,6 +220,22 @@ class ExcellonTool(ExcellonStatement):
 
     def _hit(self):
         self.hit_count += 1
+        
+    def equivalent(self, other):
+        """
+        Is the other tool equal to this, ignoring the tool number, and other file specified properties
+        """
+        
+        if type(self) != type(other):
+            return False
+        
+        return (self.diameter == other.diameter
+            and self.feed_rate == other.feed_rate
+            and self.retract_rate == other.retract_rate
+            and self.rpm == other.rpm
+            and self.depth_offset == other.depth_offset
+            and self.max_hit_count == other.max_hit_count
+            and self.settings.units == other.settings.units)
 
     def __repr__(self):
         unit = 'in.' if self.settings.units == 'inch' else 'mm'
@@ -321,6 +337,10 @@ class ZAxisInfeedRateStmt(ExcellonStatement):
 
 class CoordinateStmt(ExcellonStatement):
 
+    @classmethod
+    def from_point(cls, point):
+        return cls(point[0], point[1])
+
     @classmethod
     def from_excellon(cls, line, settings, **kwargs):
         x_coord = None

gerber/render/excellon_backend.py

@@ -0,0 +1,76 @@
+
+from .render import GerberContext
+from ..excellon_statements import *
+
+class ExcellonContext(GerberContext):
+    
+    def __init__(self, settings):
+        GerberContext.__init__(self)
+        self.comments = []
+        self.header = []
+        self.tool_def = []
+        self.body = []
+        self.end = [EndOfProgramStmt()]
+        
+        self.handled_tools = set()
+        self.cur_tool = None
+        self.pos = (None, None)
+        
+        self.settings = settings
+
+        self._start_header(settings)
+        
+    def _start_header(self, settings):
+        pass
+        
+    @property
+    def statements(self):
+        return self.comments + self.header + self.body + self.end
+        
+    def set_bounds(self, bounds):
+        pass
+    
+    def _paint_background(self):
+        pass
+        
+    def _render_line(self, line, color):
+        raise ValueError('Invalid Excellon object')
+    def _render_arc(self, arc, color):
+        raise ValueError('Invalid Excellon object')
+
+    def _render_region(self, region, color):
+        raise ValueError('Invalid Excellon object')
+        
+    def _render_level_polarity(self, region):
+        raise ValueError('Invalid Excellon object')
+
+    def _render_circle(self, circle, color):
+        raise ValueError('Invalid Excellon object')
+
+    def _render_rectangle(self, rectangle, color):
+        raise ValueError('Invalid Excellon object')
+        
+    def _render_obround(self, obround, color):
+        raise ValueError('Invalid Excellon object')
+        
+    def _render_polygon(self, polygon, color):
+        raise ValueError('Invalid Excellon object')
+    
+    def _simplify_point(self, point):
+        return (point[0] if point[0] != self._pos[0] else None, point[1] if point[1] != self._pos[1] else None)
+
+    def _render_drill(self, drill, color):
+        
+        if not drill in self.handled_tools:
+            self.tool_def.append(drill.tool)
+    
+        if drill.tool != self.cur_tool:
+            self.body.append(ToolSelectionStmt(drill.tool.number))
+            
+        point = self._simplify_point(drill.position)
+        self._pos = drill.position
+        self.body.append(CoordinateStmt.from_point())
+
+    def _render_inverted_layer(self):
+        pass
+        

gerber/render/rs274x_backend.py

@@ -93,30 +93,11 @@ class Rs274xContext(GerberContext):
         self.settings = settings
 
         self._start_header(settings)
-        #self._define_dcodes()
         
     def _start_header(self, settings):
         self.header.append(FSParamStmt.from_settings(settings))
         self.header.append(MOParamStmt.from_units(settings.units))
         
-    def _define_dcodes(self):
-        
-        self._get_circle(.1575, 10)
-        self._get_circle(.035, 17)
-        self._get_rectangle(0.1575, 0.1181, 15)
-        self._get_rectangle(0.0492, 0.0118, 16)
-        self._get_circle(.0197, 11)
-        self._get_rectangle(0.0236, 0.0591, 12)
-        self._get_circle(.005, 18)
-        self._get_circle(.008, 19)
-        self._get_circle(.009, 20)
-        self._get_circle(.01, 21)
-        self._get_circle(.02, 22)
-        self._get_circle(.006, 23)
-        self._get_circle(.015, 24)
-        self._get_rectangle(0.1678, 0.1284, 26)
-        self._get_rectangle(0.0338, 0.0694, 25)
-        
     def _simplify_point(self, point):
         return (point[0] if point[0] != self._pos[0] else None, point[1] if point[1] != self._pos[1] else None)
     
@@ -330,11 +311,10 @@ class Rs274xContext(GerberContext):
         pass
         
     def _render_polygon(self, polygon, color):
-        raise NotImplementedError('Not implemented yet')
-        pass
+        raise ValueError('Polygons can only exist in the context of aperture macro')
         
-    def _render_drill(self, circle, color):
-        pass
+    def _render_drill(self, drill, color):
+        raise ValueError('Drills are not valid in RS274X files')
     
     def _hash_amacro(self, amgroup):
         '''Calculate a very quick hash code for deciding if we should even check AM groups for comparision'''
@@ -420,8 +400,4 @@ class Rs274xContext(GerberContext):
 
     def _render_inverted_layer(self):
         pass
-        
-    def post_render_primitives(self):
-        '''No more primitives, so set the end marker'''
-        
-        self.body.append()
+