[yt-users] Orientation vector… which direction?

[John ZuHone]

Hi all,

Could anyone tell me in yt when an off-axis plot of some sort is made, in what sense is the orientation vector "L" pointing? Towards the center of the object or away from it? In other words, is:

L = [0,0,1]

pointing along the z-axis toward the object or away from it? 

Thanks,

John Z