’
s two possible coordinate transformations is considered the "
forward"
transformation (the other being the "
inverse"
transformation). If the
attribute value is zero (the default), the Mapping’
s behaviour will be the same as
when it was first created. However, if it is non-zero, its two transformations will
be inter-changed, so that the Mapping displays the inverse of its original
behaviour.
Inverting the boolean sense of the Invert attribute will cause the values of a Mapping’
s Nin and Nout attributes to be interchanged. The values of its TranForward and
TranInverse attributes will also be interchanged. This operation may be performed
with the astInvert function.