def _drawStars(self):

		radius=2

		for r in range(3,19,6):

			for c in range(3,19,6):

				x=c*self._cellHeight+self._padding

				y=r*self._cellWidth+self._padding

				self.create_oval(x-radius,y-radius,x+radius,y+radius,tags="star",fill='#000000')

	def _drawCoordinates(self):

		for i in range(19):

			letters="ABCDEFGHJKLMNOPQRST"

			textWidth=12

			# cols

			self.create_text(self._padding+i*self._cellWidth,self._padding-textWidth,text=letters[i],tags="coords")

			self.create_text(self._padding+i*self._cellWidth,self._height-self._padding+textWidth,text=letters[i],tags="coords")

			# rows

			self.create_text(self._padding-textWidth,self._padding+i*self._cellHeight,text=str(19-i),tags="coords")

			self.create_text(self._width-self._padding+textWidth,self._padding+i*self._cellHeight,text=str(19-i),tags="coords")

	## Draws a stone at provided coordinates.

	#

	#  For an unknown color draws nothing and returns False.

	#

	#  @param r row coordinate, [0-18], counted from top

	#  @param c column coordinate, [0-18], counted from left

	#  @param color color indicator, go.BLACK or go.WHITE

	def _drawStone(self, r, c, color, label=""):

		if color==BLACK:

			hexCode='#000000'

			altCode='#ffffff'

			tag="black"

		elif color==WHITE:

			hexCode='#ffffff'

			altCode='#000000'

			tag="white"

		else: return False

		x=c*self._cellWidth+self._padding

		y=r*self._cellHeight+self._padding

		radius=self._cellWidth/2

		self.create_oval(x-radius,y-radius,x+radius,y+radius,tags=tag,fill=hexCode)

		if label:

			self.create_text(x,y,text=label,tags="label",fill=altCode)

	def _onResize(self,event):

		super()._onResize(event)

		self._cellWidth=(self._width-2*self._padding)/18

		self._cellHeight=(self._height-2*self._padding)/18