public string GetFormatterDateTime(int labelIndex, double value, double minValue, double maxValue)
{
var timestamp = (int)value;
var dateTime = DateTimeUtil.GetDateTime(timestamp);
var dateString = string.Empty;
if (string.IsNullOrEmpty(numericFormatter))
{
dateString = DateTimeUtil.GetDateTimeFormatString(dateTime, maxValue - minValue);
}
else
{
dateString = dateTime.ToString(numericFormatter);
}
if (!string.IsNullOrEmpty(m_Formatter))
{
var content = m_Formatter;
FormatterHelper.ReplaceAxisLabelContent(ref content, dateString);
return(GetFormatterFunctionContent(labelIndex, value, m_TextLimit.GetLimitContent(content)));
}
else
{
return(GetFormatterFunctionContent(labelIndex, value, m_TextLimit.GetLimitContent(dateString)));
}
}
/// <summary>
/// 根据给定的最大最小时间戳范围，计算合适的Tick值
/// </summary>
/// <param name="list"></param>
/// <param name="minTimestamp"></param>
/// <param name="maxTimestamp"></param>
/// <param name="splitNumber"></param>
internal static void UpdateTimeAxisDateTimeList(List <double> list, int minTimestamp, int maxTimestamp, int splitNumber)
{
list.Clear();
var range = maxTimestamp - minTimestamp;
if (range <= 0)
{
return;
}
if (splitNumber <= 0)
{
splitNumber = 1;
}
var dtMin = DateTimeUtil.GetDateTime(minTimestamp);
var dtMax = DateTimeUtil.GetDateTime(maxTimestamp);
if (range >= ONE_YEAR * MIN_TIME_SPLIT_NUMBER)
{
var num = Math.Max(range / (splitNumber * ONE_YEAR), 1);
var dtStart = new DateTime(dtMin.Year + 1, 1, 1);
while (dtStart.Ticks < dtMax.Ticks)
{
list.Add(DateTimeUtil.GetTimestamp(dtStart));
dtStart = dtStart.AddYears(num);
}
}
else if (range >= ONE_MONTH * MIN_TIME_SPLIT_NUMBER)
{
var num = Math.Max(range / (splitNumber * ONE_MONTH), 1);
var dtStart = new DateTime(dtMin.Year, dtMin.Month, 1).AddMonths(1);
while (dtStart.Ticks < dtMax.Ticks)
{
list.Add(DateTimeUtil.GetTimestamp(dtStart));
dtStart = dtStart.AddMonths(num);
}
}
else if (range >= ONE_DAY * MIN_TIME_SPLIT_NUMBER)
{
var tick = GetTickSecond(range, splitNumber, ONE_DAY);
var startTimestamp = (minTimestamp - minTimestamp % tick) + tick;
AddTickTimestamp(list, startTimestamp, maxTimestamp, tick);
}
else if (range >= ONE_HOUR * MIN_TIME_SPLIT_NUMBER)
{
var tick = GetTickSecond(range, splitNumber, ONE_HOUR);
var startTimestamp = (minTimestamp - minTimestamp % tick) + tick;
AddTickTimestamp(list, startTimestamp, maxTimestamp, tick);
}
else if (range >= ONE_MINUTE * MIN_TIME_SPLIT_NUMBER)
{
var tick = GetTickSecond(range, splitNumber, ONE_MINUTE);
var startTimestamp = (minTimestamp - minTimestamp % tick) + tick;
AddTickTimestamp(list, startTimestamp, maxTimestamp, tick);
}
else
{
var tick = GetTickSecond(range, splitNumber, ONE_SECOND);
var startTimestamp = (minTimestamp - minTimestamp % tick) + tick;
AddTickTimestamp(list, startTimestamp, maxTimestamp, tick);
}
}
