Method used to convert an array of tuples (x,y) into a string
        suitable for createPolygon or createPolyline
        @type  arrayOfPointTuples: An array containing tuples eg.[(x1,y1),(x2,y2]
        @param arrayOfPointTuples:  All points needed to create the shape
        @return a string in the form "x1,y1 x2,y2 x3,y3"

def convertTupleArrayToPoints(self, arrayOfPointTuples):
        """Method used to convert an array of tuples (x,y) into a string
        suitable for createPolygon or createPolyline
        @type  arrayOfPointTuples: An array containing tuples eg.[(x1,y1),(x2,y2]
        @param arrayOfPointTuples:  All points needed to create the shape
        @return a string in the form "x1,y1 x2,y2 x3,y3"
        """
        points = ""
        for tuple in arrayOfPointTuples:
            points += str(tuple[0]) + "," + str(tuple[1]) + " "
        return points