startRotation method
Implementation
void startRotation(Canvas canvas, Size size) {
switch (gaugeOrientation) {
case GaugeOrientation.horizontal:
canvas.save();
canvas.translate(size.width / 2, size.height / 2);
canvas.rotate(RadialHelper.degreesToRadians(90));
canvas.translate(-size.width / 2, -size.height / 2);
break;
case GaugeOrientation.vertical:
break;
}
}