contains method
Implementation
@override
bool contains(Offset position) {
final MarkerSettings marker = series.markerSettings;
final int length = points.length;
for (int i = 0; i < length; i++) {
if (tooltipTouchBounds(
points[i],
marker.width,
marker.height,
).contains(position)) {
return true;
}
}
return false;
}