dragoon deadly lancer

[Endwave]

At 1st level, the dragoon has learned the technique of the falling from the sky upon their opponents to inflict more damage. Whenever the dragoon jumps at least ten feet from his opponent (vertical or horizontal) and strikes his foe, the dragoon deals an additional +1d6 points of damage. This extra damage is 1d6 when first gained, and it increases by 1d6 with each improvement. If the attack is also a critical hit, the extra damage is not also multiplied. In addition, for each ten feet the dragoon jumps beyond the first ten feet, he deals an additional +1d6 points of damage.


My question is, is does this apply when the dragoon lands adjacent to an enemy after jumping from at least 10ft away or can you jump verticaly 10ft or so and still apply it?