setScale method
Sets scale of whole line.
Implementation
void setScale(double ratio) {
if (!isFilled) {
return;
}
final arcData = PathUtil.scale<CubicArc>(_arcs, ratio);
_arcs
..clear()
..addAll(arcData);
final lineData = PathUtil.scale<CubicLine>(_lines, ratio);
_lines
..clear()
..addAll(lineData);
}