major rework of Sketch creation, now properly handles Arcs in addition to Points on a Polygon

XXX Verify this isn't actually being used and remove. After supporting Arcs this does not make sense, plus all geometry is available right in the sketch

README.md

@@ -37,10 +37,10 @@ Hope to support this one of several ways, depending on the future of KiCAD/API
 * KiCAD supports multi-document, API include `get_boards()`
 * `kicad-cli` supports full API, spin up instances as needed
 * Manually switch between KiCAD projects and import new boards
-* socker-per-project but this seems messy
+* socket-per-project but this seems messy
 
 ### Panelization
-In it's most basic form, this will probably utilize `kikit` to assist in basic panelization but in multiboard projects it will assist in panelizing differnt boards into one panel.
+In it's most basic form, this will probably utilize `kikit` to assist in basic panelization but in multiboard projects it will assist in panelizing different boards into one panel.
 
-### Syncronize all the things!
+### Synchronize all the things!
 Syncing selections is fairly straight forward, but long term it would be awesome to have everything sync as their changed.

freecad/kiconnect/api.py

@@ -61,12 +61,11 @@ class APIObject(BaseObject):
         if self.is_connected:
             self.kicad_board = self.kicad.get_board()
             polygons = Board.extract_polygons(self.kicad_board)
-            print('>', polygons)
 
             for poly in polygons:
                 self.polygons[poly.id.value] = poly
         else:
-            print('*****NOT CONNECTED')
+            raise Exception('KiCAD API not connected.')
 
     @property
     def is_connected(self):
@@ -77,7 +76,6 @@ class APIObject(BaseObject):
         return self.feature.Connected
 
     def get_polygon(self, polygon_id):
-        print(polygon_id, self.polygons)
         self.refresh_polygons()
         return self.polygons.get(polygon_id)
 

freecad/kiconnect/board.py

@@ -4,7 +4,7 @@ import FreeCAD as App
 from . import settings
 import Part
 
-from kipy.board_types import Footprint3DModel, BoardPolygon, BoardSegment, PadStackShape
+from kipy.board_types import Footprint3DModel, BoardArc, BoardPolygon, BoardSegment, PadStackShape
 from kipy.geometry import PolygonWithHoles, PolyLine, PolyLineNode, Vector2
 from kipy.proto.common.types import KiCadObjectType
 from kipy.util.board_layer import BoardLayer
@@ -25,7 +25,7 @@ class BoardObject(BaseObject):
 
         self.kicad_board = kicad_board
 
-        # TODO needs to be resotred in onDocumentRestored
+        # TODO needs to be restored in onDocumentRestored
         #self.board_polygon = board_polygon
         self.polygon_id = board_polygon.id.value
 
@@ -197,8 +197,7 @@ def makeBoard(parent, kicad_board, polygon):
 def extract_polygons(board):
     # find polygons of Edge Cuts
     edge_cuts = [ edge for edge in  board.get_shapes() if edge.layer == BoardLayer.BL_Edge_Cuts ]
-    polygons = [ edge for edge in edge_cuts if isinstance(edge, BoardPolygon) ]
+    polygons = [ edge for edge in edge_cuts if (isinstance(edge, BoardPolygon) or isinstance(edge, BoardArc)) ]
 
-    # XXX only single board supported at the moment
     return polygons
 

freecad/kiconnect/board_sketch.py

@@ -1,8 +1,9 @@
-import os 
+import os
 
 import FreeCAD as App
 from . import settings
 import Part
+import Sketcher
 
 from kipy.board_types import Footprint3DModel, BoardPolygon, BoardSegment, PadStackShape
 from kipy.geometry import PolygonWithHoles, PolyLine, PolyLineNode, Vector2
@@ -39,49 +40,104 @@ class BoardSketchObject(BaseObject):
     def setup_properties(self, feature):
         super(BoardSketchObject, self).setup_properties(feature)
 
+        # TODO remove in favor of getting BoardOffset from parent Board object
         feature.addProperty('App::PropertyPlacement', 'BoardOffset', 'KiConnect', 'Internal offset for zeroing out Footprint offset', hidden=True, read_only=True)
-        feature.addProperty('App::PropertyVectorList', 'Vectors', 'KiConnect', 'Internal offset for zeroing out Footprint offset', hidden=True)
+        feature.addProperty('App::PropertyVectorList', 'Vectors', 'KiConnect', 'Board Outline as Vectors', hidden=True)
 
     def sync_from(self):
         feature = self.feature
         vectors = []
 
         # board.get_shapes needs to be called to ensure polygons are actually up to date
+        # XXX get_polygon should be moved to the Sketches parent Board object
+        # then the board should be making the api refresh board call and process
+        # the polygon, instead of that functionality being in the API
         board_polygon = self.get_api().get_polygon(self.polygon_id)
 
         if not board_polygon:
             raise BoardPolyNotFoundException('Board Polygon not found: ' + self.polygon_id)
 
-        for node in board_polygon.polygons[0].outline:
+        arc_count = 0
-            vectors.append(self.point_to_vector(node.point))
-
-        self.feature.Vectors = vectors
-
-        begin = None
         start = None
 
-        # this probably needs a bit more control..
+        outline = board_polygon.polygons[0].outline
-        feature.Constraints = []
+        line = []
-        feature.Geometry = []
 
-        for vector in self.feature.Vectors:
+        for node in outline:
-            if not start:
+            if node.has_arc:
-                start = vector
+                arc_count = arc_count + 1
-                begin = vector
 
-                continue
+                if arc_count % 2 == 0:
+                    continue
 
-            feature.addGeometry(Part.LineSegment(start, vector))
+                arc = node.arc
-            start = vector
 
-        feature.addGeometry(Part.LineSegment(start, begin))
+
+                arc_start = self.point_to_vector(arc.start)
+                arc_mid = self.point_to_vector(arc.mid)
+                arc_end = self.point_to_vector(arc.end)
+
+                if not start:
+                    start = arc_start
+
+                # if there is already part of a LineSegment, connect it to the start of this Arc
+                if len(line) == 1:
+                    idx = feature.addGeometry(Part.LineSegment(line[0], arc_start))
+                    feature.addConstraint(Sketcher.Constraint("Coincident", idx - 1, 2, idx, 1))
+
+                    if line[0].x == arc_start.x:
+                        feature.addConstraint(Sketcher.Constraint("Vertical", idx))
+
+                    if line[0].y == arc_start.y:
+                        feature.addConstraint(Sketcher.Constraint("Horizontal", idx))
+
+                    line = []
+
+                idx = feature.addGeometry(Part.Arc(arc_start, arc_mid, arc_end))
+                if idx > 1:
+                    feature.addConstraint(Sketcher.Constraint("Coincident", idx - 1, 2, idx, 1))
+
+                line.append(arc_end)
+            elif node.has_point:
+                vector = self.point_to_vector(node.point)
+
+                if not start:
+                    start = vector
+
+                line.append(vector)
+            else:
+                raise Exception('Hit unknown geometry type in board polygon')
+
+            if len(line) > 2: raise Exception('Too many points in line segment', line)
+
+            if len(line) == 2:
+                idx = feature.addGeometry(Part.LineSegment(line[0], line[1]))
+                feature.addConstraint(Sketcher.Constraint("Coincident", idx - 1, 2, idx, 1))
+
+                if line[0].x == line[1].x:
+                    feature.addConstraint(Sketcher.Constraint("Vertical", idx))
+
+                if line[0].y == line[1].y:
+                    feature.addConstraint(Sketcher.Constraint("Horizontal", idx))
+
+                line = [ line[1] ]
+
+
+        if len(line) == 1:
+            idx = feature.addGeometry(Part.LineSegment(start, line[0]))
+            feature.addConstraint(Sketcher.Constraint("Coincident", 0, 1, idx, 1))
+            feature.addConstraint(Sketcher.Constraint("Coincident", idx - 1, 2, idx, 2))
+        else:
+            FreeCAD.Console.PrintError("Bad line segment:", line)
 
         feature.recompute()
 
+
 class BoardSketchViewProvider(BaseViewProvider):
     TYPE = 'KiConnect::BoardSketch'
     #ICON = 'kicad/board.svg'
 
+
 def makeBoardSketch(parent, kicad_board, polygon):
     feature = App.ActiveDocument.addObject('Sketcher::SketchObjectPython', 'BoardSketch')
     parent.addObject(feature)