target/generated-sources/template/com/flowpowered/math/imaginary/Quaternionf.java
public Vector3f getAxis() {
        final float q = (float) Math.sqrt(1 - w * w);
        return new Vector3f(x / q, y / q, z / q);
    }
public Vector3f getAxis() {
        final float q = (float) Math.sqrt(1 - w * w);
        return new Vector3f(x / q, y / q, z / q);
    }
Returns the axis of rotation for this quaternion.

@return The axis of rotation