public boolean firstPointClicked(PolygonPoint point, double zoomLevel)
	{
		if (base == null)
			return false;
		double a = Math.abs(point.getX() - base.getPoints().get(0).getX());
		double b = Math.abs(point.getY() - base.getPoints().get(0).getY());
		double distance = Math.sqrt(a * a + b * b);
		if (distance < 0.1 * zoomLevel)
			return true;
		else
			return false;
	}