aabbox3d question

[Sparks]

For aabbox3d, I would just like to know what is the value returned by getExtent() is it like the "radius" of the box or is it's length?


Let's say I want to determine the dimension of my bounding box?
For the X axis, would I used the (getCenter()).X and -+ (getExtent()).X

I see there is also MinEdge and MaxEdge, Where exaclty are these vectors positionned? back-bottom-right , front-top-left?

if i'm not using the right method please inform me, i'm new at this so i'm still learning