- in Tool Transform added a new feature named 'Buffer'. For Geometry and Gerber objects will create (and replace) a geometry at a distance from the original geometry and for Excellon will adjust the Tool diameters

flatcamParsers/ParseExcellon.py

@@ -1457,4 +1457,35 @@ class Excellon(Geometry):
                 slot['start'] = affinity.rotate(slot['start'], angle, origin=(px, py))
 
         self.create_geometry()
-        self.app.proc_container.new_text = ''
+        self.app.proc_container.new_text = ''
+
+    def buffer(self, distance, join):
+        """
+
+        :param distance:
+        :param join:
+        :return:
+        """
+        log.debug("flatcamParsers.ParseExcellon.Excellon.buffer()")
+
+        if distance == 0:
+            return
+
+        def buffer_geom(obj):
+            if type(obj) is list:
+                new_obj = []
+                for g in obj:
+                    new_obj.append(buffer_geom(g))
+                return new_obj
+            else:
+                try:
+                    return obj.buffer(distance, resolution=self.geo_steps_per_circle)
+                except AttributeError:
+                    return obj
+
+        # buffer solid_geometry
+        for tool, tool_dict in list(self.tools.items()):
+            self.tools[tool]['solid_geometry'] = buffer_geom(tool_dict['solid_geometry'])
+            self.tools[tool]['C'] += distance
+
+        self.create_geometry()

flatcamParsers/ParseGerber.py

@@ -2169,6 +2169,87 @@ class Gerber(Geometry):
                              _("Gerber Rotate done."))
         self.app.proc_container.new_text = ''
 
+    def buffer(self, distance, join):
+        """
+
+        :param distance:
+        :return:
+        """
+        log.debug("parseGerber.Gerber.buffer()")
+
+        if distance == 0:
+            return
+
+        # variables to display the percentage of work done
+        self.geo_len = 0
+        try:
+            for __ in self.solid_geometry:
+                self.geo_len += 1
+        except TypeError:
+            self.geo_len = 1
+
+        self.old_disp_number = 0
+        self.el_count = 0
+
+        def buffer_geom(obj):
+            if type(obj) is list:
+                new_obj = []
+                for g in obj:
+                    new_obj.append(buffer_geom(g))
+                return new_obj
+            else:
+                try:
+                    self.el_count += 1
+                    disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
+                    if self.old_disp_number < disp_number <= 100:
+                        self.app.proc_container.update_view_text(' %d%%' % disp_number)
+                        self.old_disp_number = disp_number
+
+                    return obj.buffer(distance, resolution=self.steps_per_circle, join_style=join)
+                except AttributeError:
+                    return obj
+
+        self.solid_geometry = buffer_geom(self.solid_geometry)
+
+        # we need to buffer the geometry stored in the Gerber apertures, too
+        try:
+            for apid in self.apertures:
+                new_geometry = list()
+                if 'geometry' in self.apertures[apid]:
+                    for geo_el in self.apertures[apid]['geometry']:
+                        new_geo_el = dict()
+                        if 'solid' in geo_el:
+                            new_geo_el['solid'] = buffer_geom(geo_el['solid'])
+                        if 'follow' in geo_el:
+                            new_geo_el['follow'] = buffer_geom(geo_el['follow'])
+                        if 'clear' in geo_el:
+                            new_geo_el['clear'] = buffer_geom(geo_el['clear'])
+                        new_geometry.append(new_geo_el)
+
+                self.apertures[apid]['geometry'] = deepcopy(new_geometry)
+
+                try:
+                    if str(self.apertures[apid]['type']) == 'R' or str(self.apertures[apid]['type']) == 'O':
+                        self.apertures[apid]['width'] += (distance * 2)
+                        self.apertures[apid]['height'] += (distance * 2)
+                    elif str(self.apertures[apid]['type']) == 'P':
+                        self.apertures[apid]['diam'] += (distance * 2)
+                        self.apertures[apid]['nVertices'] += (distance * 2)
+                except KeyError:
+                    pass
+
+                try:
+                    if self.apertures[apid]['size'] is not None:
+                        self.apertures[apid]['size'] = float(self.apertures[apid]['size'] + (distance * 2))
+                except KeyError:
+                    pass
+        except Exception as e:
+            log.debug('camlib.Gerber.buffer() Exception --> %s' % str(e))
+            return 'fail'
+
+        self.app.inform.emit('[success] %s' % _("Gerber Buffer done."))
+        self.app.proc_container.new_text = ''
+
 
 def parse_gerber_number(strnumber, int_digits, frac_digits, zeros):
     """