- Fix ViaStitching to follow change in python API

- Adding the circular zone tools

CircularZone/CircularZone.py

@@ -0,0 +1,55 @@
+from math import *
+import pcbnew
+from CircularZoneDlg import CircularZoneDlg
+import wx
+
+
+class CircularZone(pcbnew.ActionPlugin):
+
+    def defaults(self):
+        self.name = "Create a circular zone"
+        self.category = "Undefined"
+        self.description = ""
+
+    def build(self, center_x, center_y, radius, keepout):
+        sp = pcbnew.SHAPE_POLY_SET()
+        sp.NewOutline()
+        cnt = 100
+        for i in range(cnt):
+            x = int(center_x + radius * cos(i * 2 * pi / cnt))
+            y = int(center_y + radius * sin(i * 2 * pi / cnt))
+            sp.Append(x, y)
+        # sp.OutlineCount()
+        sp.thisown = 0
+        zone = pcbnew.ZONE_CONTAINER(self.pcb)
+        zone.SetOutline(sp)
+        zone.SetLayer(pcbnew.F_Cu)
+        zone.SetIsKeepout(keepout)
+        zone.thisown = 0
+        self.pcb.Add(zone)
+
+    def Run(self):
+        self.pcb = pcbnew.GetBoard()
+        a = CircularZoneDlg(None)
+        x = 0
+        y = 0
+        reference = None
+        for module in self.pcb.GetModules():
+            if module.IsSelected():
+                x = module.GetPosition().x
+                y = module.GetPosition().y
+                reference = module.GetReference()
+                break
+        if reference is None:
+            a.m_comment.SetLabel("No reference position: start at origin")
+        else:
+            a.m_comment.SetLabel("Using %s as position reference" % reference)
+
+        a.m_radiusMM.SetValue("10")
+        modal_result = a.ShowModal()
+        if modal_result == wx.ID_OK:
+            self.build(x, y, pcbnew.FromMM(
+                int(a.m_radiusMM.GetValue())), a.m_radio_out.GetValue())
+        else:
+            print "Cancel"
+        a.Destroy()