lerp method
Implementation
@override
Radii lerp(radii) {
if (radii is Radii)
_config(
tlX: radii._tlX ?? _tlX,
tlY: radii._tlY ?? _tlY,
trX: radii._trX ?? _trX,
trY: radii._trY ?? _trY,
blX: radii._blX ?? _blX,
blY: radii._blY ?? _blY,
brX: radii._brX ?? _brX,
brY: radii._brY ?? _brY,
);
return super.lerp(radii);
}