redraw method
void
redraw()
Redraws a Picture, which can be useful if the backing #element is an HTML Canvas or HTML Video that has changed. This will not attempt to reload any image. If you need to do that, call #reloadSource.
This does not need to be called within a transaction, and will not re-measure anything. @since 2.1
Implementation
void redraw() {
_i4.callMethod(
this,
'redraw',
[],
);
}