private String infos(Signature signature) {
		double meanX = 0;
		double meanY = 0;
		double minX = Double.MAX_VALUE;
		double maxX = Double.MIN_VALUE;
		double minY = Double.MAX_VALUE;
		double maxY = Double.MIN_VALUE;

		for (Point point : signature.getPoints()) {
			meanX += point.getX();
			meanY += point.getY();
			if (point.getX() < minX)
				minX = point.getX();
			if (point.getX() > maxX)
				maxX = point.getX();
			if (point.getY() < minY)
				minY = point.getY();
			if (point.getY() > maxY)
				maxY = point.getY();
		}

		meanX /= n;
		meanY /= n;

		return "Signature infos{" + "meanX=" + meanX + ", meanY=" + meanY
				+ ", minX=" + minX + ", maxX=" + maxX + ", minY=" + minY
				+ "maxY=" + maxY + "}";
	}