public TimeInterval CropBy(TimeInterval crop)
{
var ret = new TimeInterval();
// Max between
ret.start = start > crop.start ? start : crop.start;
// Min between
ret.end = end < crop.end ? end : crop.end;
return ret;
}
public void SetDrawInterval(DateTime begin, DateTime end)
{
draw_interval = new TimeInterval(begin, end);
}