Transform/multiply the given 2D-vector <code>(x, y)</code>, as if it was a 3D-vector with z=1, by
this matrix and store the result in <code>dest</code>.
<p>
The given 2D-vector is treated as a 3D-vector with its z-component being 1.0, so it
will represent a position/location in 2D-space rather than a direction.
<p>
In order to store the result in the same vector, use {@link #transformPosition(Vector2d)}.
Transform/multiply the given 2D-vector <code>(x, y)</code>, as if it was a 3D-vector with z=1, by this matrix and store the result in <code>dest</code>. <p> The given 2D-vector is treated as a 3D-vector with its z-component being 1.0, so it will represent a position/location in 2D-space rather than a direction. <p> In order to store the result in the same vector, use {@link #transformPosition(Vector2d)}.
@see #transformPosition(Vector2d) @see #transform(Vector3d, Vector3d)
@param x the x component of the vector to transform @param y the y component of the vector to transform @param dest will hold the result @return dest