What does the "UserMoved" parameter do for NULLS?

[robcat2075]

The file code for bones and nulls is very similar except that bones are called SEGMENTs and nulls are called NULLOBJECTs. I've found that I can turn a null into a bone by changing those XML tags.

 

However, nulls also have one other property: UserMoved=TRUE which is inserted if the NULL has been moved from its default creation point.

 

This would seem to be already apparent from the position information of the null, so I'm wondering what does this extra bit of info get us? Why is it needed?

 

 

Name=Bone1

BoneColor=255 0 0 255

Start=-12.519 6.36753 -0.16241

Rotate=0.164182 -0.687782 0.686078 0.171162

Length=13.1039

Name=Null1

BoneColor=96 96 192 255

UserMoved=TRUE

Start=4.7249 10.3045 -3.90896

Rotate=0.394994 -0.0342744 0.0544722 0.916425

Length=20.2844

[mtpeak2]

If I had to guess, nulls are created different from bones. You right click in the modeling window to add a null and the origin is (0,0,0). So if you move the null from the default position, it's going to have the "UserMoved=True" tag on it.