lerp static method
- DecorationImage? a,
- DecorationImage? b,
- double t
Linearly interpolates between two DecorationImages.
The t
argument represents position on the timeline, with 0.0 meaning
that the interpolation has not started, returning a
, 1.0 meaning that
the interpolation has finished, returning b
, and values in between
meaning that the interpolation is at the relevant point on the timeline
between a
and this
. The interpolation can be extrapolated beyond 0.0
and 1.0, so negative values and values greater than 1.0 are valid (and can
easily be generated by curves such as Curves.elasticInOut).
Values for t
are usually obtained from an Animation<double>, such as
an AnimationController.
Implementation
static DecorationImage? lerp(DecorationImage? a, DecorationImage? b, double t) {
if (identical(a, b) || t == 0.0) {
return a;
}
if (t == 1.0) {
return b;
}
return _BlendedDecorationImage(a, b, t);
}