 			points[i] = new Bu.Point @randomX(), @randomY()
 
 		triangle = new Bu.Triangle points[0], points[1], points[2]
-		triangle.points[0].label = "A"
-		triangle.points[1].label = "B"
-		triangle.points[2].label = "C"
+		triangle.points[0].label = 'A'
+		triangle.points[1].label = 'B'
+		triangle.points[2].label = 'C'
 		return triangle
 
 	generateRectangle: ->

		aTo = aFrom + Bu.rand Math.PI / 2, Math.PI * 2

		fan = new Bu.Fan @randomX(), @randomY(), @randomRadius(), aFrom, aTo
		fan.string.points[0].label = "A"
		fan.string.points[1].label = "B"
		return fan

	generatePolygon: ->


		for i in [0..3]
			point = new Bu.Point @randomX(), @randomY()
			point.label = 'P' + i
			points.push point

		return new Bu.Polygon points

	generateLine: ->
		line = new Bu.Line @randomX(),@randomY(),@randomX(),@randomY()
		line.points[0].label = 'A'
		line.points[1].label = 'B'
		return line

	generatePolyline: ->
		polyline = new Bu.Polyline
		for i in [0..3]
			point = new Bu.Point @randomX(), @randomY()
			point.label = 'P' + i
			polyline.addPoint point
		return polyline
