PyBullet ：getCollisionShapeData fun cant get right pos of objects

[zjh-de-github]

I use PyBullet and I've loaded a couple of obstacles into my environment：

while their position was set to:[1,0,1]、[0,1,1]、[-1,0,1]、[0,-1,1]
Then I expect to use getCollisionShapeData() to iterate over the obstacle information shown below:

But there's a clear problem with the location of the output, which is not the same as when I loaded the model:

Can some kind man answer my question