http://xwingtactics.blogspot.com/2015/07/faq-tournament-rules-update-72415.html
Hey, I wrote a thing yesterday.
How I Learned To Stop Worrying And Love The FAQ
Nice! Still good mustache.
Nice!
Above, the pictures show a shot that with the previous rules as written would be perfectly legal. The rear arc of the VSD is within the side arc of the AFII (though you'd have to go through the VSD's side arc to measure it), and there is Line of Sight between both arcs. Under the new rules, because the shortest point between the two that is still in arc is now covered by the VSD's side arc, the shot is no good - the AFII cannot shoot the VSD's rear with its side arc.
Explain to me how that shot is legal in the pre-FAQ rules?
Very nice example by the way. Here we can clearly see that measuring for LoS, the VSD's rear hull zone can be seen from the AF's right hull zone (but just barely!!!) but then you show that measuring for firing arc, the rear hull zone is obstructed by the VSD's right hull zone.
Above, the pictures show a shot that with the previous rules as written would be perfectly legal. The rear arc of the VSD is within the side arc of the AFII (though you'd have to go through the VSD's side arc to measure it), and there is Line of Sight between both arcs. Under the new rules, because the shortest point between the two that is still in arc is now covered by the VSD's side arc, the shot is no good - the AFII cannot shoot the VSD's rear with its side arc.
Explain to me how that shot is legal in the pre-FAQ rules?
Very nice example by the way. Here we can clearly see that measuring for LoS, the VSD's rear hull zone can be seen from the AF's right hull zone (but just barely!!!) but then you show that measuring for firing arc, the rear hull zone is obstructed by the VSD's right hull zone.
Previous to the FAQ the rules as written included the entire hull zone (not just the edges) as being in arc. So, in the picture there, the rear VSD hull zone was in arc, even if no point along its edge was. For that matter, per the Pre-FAQ rules, the VSD's Left hull zone was in arc as well, even though there was no way it would pass the Line of Sight test.
As FFG stated, this is the way most people already played. I personally would not have thought, prior to the clarification, that the above scenario represented a legal shot, even though it was with the rules as written. But I am certainly glad for the clarification, even if the way it was explained was a bit convoluted.
To measure attack range from a ship, measure from the
closest point of the attacking hull zone. To measure
attack range to a ship, measure to the closest point of the
defending hull zone.
The above is from the RRG page 7 on measuring range.
When looking at the last picture, it appears to me that the range calculation is off. I could be wrong, because it's hard for me to tell from the picture, but I think the front shot is also not allowable.
The closest point on the attacking front hull zone to the closest point on the defending hull zone of the destroyer would cross VSD's side arc, no? The picture appears to me that you measured from the closest point of the AF2 to the closest point of the defending rear hull zone that does not cross the side hull of the vsd, but not the closest range from hull zone to hull zone irrespective of whether or not it crosses the side arc of the vsd. Again, it's hard to tell by picture
I see what you mean regarding the picture, but it is a trick of perspective.
It is almost impossible to get into a situation where you have part of the hull zones border in arc, but the closest point is through a defending arc AND you have line of sight. Due to pure geometry, only the VSD and CR90 can pull that trick off, and only with their biggest arcs against similar arcs. And they have to be nearly point blank range - like bases touching range.
Ok good deal... What threw me was the angle of the distance ruler that seemed like it wasn't tracing along the firing arc which appeared to me to be the shorter route to the defending hull zone on the VSD.
In that last pic the even though range is not being measures along the arc line it does still appear to be the shortest point between the two zones.
Okay, as soon as I can I am going to need to do some serious mathing regarding these new rules, with pictures, but long story short as long as your nearest edge of your ship doesn't draw a right angle to the arc division them the closest point will not be crossing another arc.
https://en.m.wikipedia.org/wiki/Distance_from_a_point_to_a_line#/media/File:Point-to-line2.svg
Previous to the FAQ the rules as written included the entire hull zone (not just the edges) as being in arc. So, in the picture there, the rear VSD hull zone was in arc, even if no point along its edge was. For that matter, per the Pre-FAQ rules, the VSD's Left hull zone was in arc as well, even though there was no way it would pass the Line of Sight test.As FFG stated, this is the way most people already played. I personally would not have thought, prior to the clarification, that the above scenario represented a legal shot, even though it was with the rules as written. But I am certainly glad for the clarification, even if the way it was explained was a bit convoluted.
I see. We always treated that as the left hull zone obstructing the further-in rear hull zone, but I can now see how others can be reading it differently. Thanks!