Method dot

src/com/cloudream/ishow/util/MathUtils.java:144–147

(float v1x, float v1y, float v2x, float v2y)

	}

	public static float dot(float v1x, float v1y, float v2x, float v2y)
	{
		return v1x * v2x + v1y * v2y;
	}

	public static float dot(PointF v1, PointF v2)
	{