/// <summary>
/// 按区域查询密度同比环比分析
/// </summary>
/// <param name="dataId">数据编号</param>
/// <param name="level">密度时间粒度</param>
/// <param name="startTime">开始时间</param>
/// <param name="endTime">结束时间</param>
/// <returns>高点密度数据集合</returns>
public List <List <TrafficChart <DateTime, int> > > QueryComparison(string dataId, DateTimeLevel level, DateTime startTime, DateTime endTime)
{
dataId = Uri.UnescapeDataString(dataId);
startTime = TimePointConvert.CurrentTimePoint(level, startTime);
endTime = TimePointConvert.CurrentTimePoint(level, endTime);
List <DateTime> startTimes = new List <DateTime>();
List <DateTime> endTimes = new List <DateTime>();
startTimes.Add(startTime);
endTimes.Add(endTime);
//同比
if (level == DateTimeLevel.FiveMinutes ||
level == DateTimeLevel.FifteenMinutes ||
level == DateTimeLevel.Hour)
{
startTimes.Add(TimePointConvert.PreTimePoint(DateTimeLevel.Day, startTime));
endTimes.Add(TimePointConvert.PreTimePoint(DateTimeLevel.Day, endTime));
}
else if (level == DateTimeLevel.Day)
{
startTimes.Add(TimePointConvert.PreTimePoint(DateTimeLevel.Month, startTime));
endTimes.Add(TimePointConvert.PreTimePoint(DateTimeLevel.Month, endTime));
}
else if (level == DateTimeLevel.Month)
{
startTimes.Add(TimePointConvert.PreTimePoint(DateTimeLevel.Year, startTime));
endTimes.Add(TimePointConvert.PreTimePoint(DateTimeLevel.Year, endTime));
}
else
{
return(new List <List <TrafficChart <DateTime, int> > >());
}
//环比
startTimes.Add(TimePointConvert.PreTimePoint(level, startTime));
endTimes.Add(TimePointConvert.PreTimePoint(level, endTime));
return(startTimes.Select((t, i) => SelectCharts(dataId, level, startTimes[0], t, endTimes[i])).ToList());
}