NinNin - Number of input coordinates for a Mapping

Description:
This attribute gives the number of coordinate values required to specify an input point for a MappingMapping (i.e. the number of dimensions of the space in which the Mapping's input points reside).
Type:
Integer, read-only.
Class Applicability:
Mapping
All Mappings have this attribute.
CmpMapCmpMap
If a CmpMap's component Mappings are joined in series, then its Nin attribute is equal to the Nin attribute of the first component (or to the NoutNout attribute of the second component if the the CmpMap's InvertInvert attribute is non-zero).

If a CmpMap's component Mappings are joined in parallel, then its Nin attribute is given by the sum of the Nin attributes of each component (or to the sum of their Nout attributes if the CmpMap's Invert attribute is non-zero).

FrameFrame
The Nin attribute for a Frame is always equal to the number of Frame axes (NaxesNaxes attribute).
FrameSetFrameSet
The Nin attribute of a FrameSet is equal to the number of axes (Naxes attribute) of its base Frame (as specified by the FrameSet's BaseBase attribute). The Nin attribute value may therefore change if a new base Frame is selected.