"Against the grain" charge attacks

[RobW]

The "3-hex" requirement, in TFT LE, for pole-weapon charge-attack bonuses has some ambiguities, and I'm curious how people are playing (in Advanced Melee there was no such requirement).

The 3-hex charge rule on ITL p111:

In any case where a pole weapon is being used in a charge attack, and the attacker moved three hexes or more in a straight line, the polearm does one extra die of damage if it hits.

There's an accompanying figure that shows an "against the grain" example.

I take "against the grain" to mean that if a figure is 3 hexes distant from a destination hex, then any 3-hex path to that destination is a "straight line" move, even if it zigs and zags on the hex grid. Is that what you are doing?

Below is an example.