I have created an artificial village and I know its center point. In the minecraft wiki, I find this information about the spawing area of iron golems within a village:
The golem spawning zone is a 16×16×6 area centered around the center point of the village.
However, it is not clear to me where exactly this area is. The village center point is, as I understand, a coordinate like block has. But a 16x16x6 volume does not contain a center block.
In the following image, which colored pixel would be the village center? (view from top on the left, view from the side on the right)
Or am I totally wrong and the area is distributed around the center point like in the following image? (again, view from top on the left, view from the side on the right)