Compare the two given space values to see if they are equal
- space1 : int or str
- the first space to compare (may be either the integer enum value, or the
api enum name - ie, “kPostTransform” - or the pymel enum name - ie,
“postTransform” )
- space2 : int or str
- the seoncd space to compare (may be either the integer enum value, or
the api enum name - ie, “kPostTransform” - or the pymel enum name - ie,
“postTransform”)
- rotationOnly : bool
- If true, then compare the spaces, assuming we are only considering
rotation - in rotation, transform is the same as preTransform/object
(the reason being that in maya, preTransform means rotation +
translation are both defined in the preTransform/object coordinate
system, while transform means rotation is defined in preTransform/object
coordinates, while translate is given in the postTransform space...
which matches the way maya applies transforms)