/// <summary>
/// 按区域查询密度集合
/// </summary>
/// <param name="dataId">数据编号</param>
/// <param name="level">时间级别</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 <TrafficDensity> QueryList(string dataId, DateTimeLevel level, DateTime startTime, DateTime endTime)
{
dataId = Uri.UnescapeDataString(dataId);
List <IQueryable <TrafficDensity> > queryables = BranchDbConvert.GetQuerables(startTime, endTime, _context.Queryable(level));
List <TrafficDensity> result = new List <TrafficDensity>();
foreach (IQueryable <TrafficDensity> queryable in queryables)
{
try
{
IQueryable <TrafficDensity> whereQueryable = Where(queryable, dataId, level, startTime, endTime);
if (level >= DateTimeLevel.Day)
{
result.AddRange(whereQueryable
.GroupBy(f => TimePointConvert.CurrentTimePoint(level, f.DateTime))
.Select(g => new TrafficDensity
{
DataId = g.First().DataId,
DateTime = g.Key,
Value = Convert.ToInt32(g.Average(d => d.Value))
})
.ToList());
}
else
{
result.AddRange(whereQueryable.ToList());
}
}
catch
{
}
}
return(result);
}
/// <summary>
/// 按车道查询流量数据
/// </summary>
/// <param name="lanes">车道集合</param>
/// <param name="level">时间粒度</param>
/// <param name="startTimes">开始时间集合</param>
/// <param name="endTimes">结束时间集合</param>
/// <param name="baseTime">基准时间</param>
/// <param name="flowTypes">流量密度数据</param>
/// <returns>流量数据集合</returns>
public virtual List <List <TrafficChart <DateTime, int, LaneFlow> > > QueryCharts(List <Lane> lanes, DateTimeLevel level, DateTime[] startTimes, DateTime[] endTimes, DateTime baseTime, FlowType[] flowTypes = null)
{
List <List <TrafficChart <DateTime, int, LaneFlow> > > result = new List <List <TrafficChart <DateTime, int, LaneFlow> > >();
HashSet <string> dataIds = lanes.Select(l => l.DataId).ToHashSet();
for (int i = 0; i < startTimes.Length; ++i)
{
List <TrafficChart <DateTime, int, LaneFlow> > item = new List <TrafficChart <DateTime, int, LaneFlow> >();
foreach (IQueryable <LaneFlow> queryable in BranchDbConvert.GetQuerables(startTimes[i], endTimes[i], _flowContext.Queryable(level)))
{
item.AddRange(SelectChart(Where(queryable, dataIds, level, startTimes[i], endTimes[i]), level, startTimes[0], startTimes[i], flowTypes));
}
result.Add(item);
}
return(result);
}
/// <summary>
/// 选择图表
/// </summary>
/// <param name="dataId">数据编号</param>
/// <param name="level">时间级别</param>
/// <param name="baseTime">基准时间</param>
/// <param name="startTime">开始时间</param>
/// <param name="endTime">结束时间</param>
/// <returns>查询结果</returns>
private List <TrafficChart <DateTime, int> > SelectCharts(string dataId, DateTimeLevel level, DateTime baseTime, DateTime startTime, DateTime endTime)
{
List <IQueryable <TrafficDensity> > queryables =
BranchDbConvert.GetQuerables(startTime, endTime, _context.Queryable(level));
List <TrafficChart <DateTime, int> > result = new List <TrafficChart <DateTime, int> >();
foreach (IQueryable <TrafficDensity> queryable in queryables)
{
try
{
string timeFormat = TimePointConvert.TimeFormat(level);
TimeSpan span = TimePointConvert.CurrentTimePoint(level, baseTime) - TimePointConvert.CurrentTimePoint(level, startTime);
var whereQueryable = Where(queryable, dataId, level, startTime, endTime);
if (level >= DateTimeLevel.Day)
{
result.AddRange(whereQueryable
.GroupBy(f => TimePointConvert.CurrentTimePoint(level, f.DateTime))
.Select(g => new TrafficChart <DateTime, int>
{
Axis = g.Key.Add(span),
Remark = g.Key.ToString(timeFormat),
Value = Convert.ToInt32(g.Average(d => d.Value))
})
.ToList());
}
else
{
result.AddRange(whereQueryable
.ToList()
.Select(d => new TrafficChart <DateTime, int>
{
Axis = d.DateTime.Add(span),
Remark = d.DateTime.ToString(timeFormat),
Value = d.Value
})
.ToList());
}
}
catch
{
}
}
return(result);
}
/// <summary>
/// 按路口查询视频数据化结构数据集合
/// </summary>
/// <param name="lanes">车道集合</param>
/// <param name="structType">视频结构化数据类型</param>
/// <param name="startTime">开始时间</param>
/// <param name="endTime">结束时间</param>
/// <param name="pageSize">分页页码</param>
/// <param name="pageNum">分页数量</param>
/// <param name="hasTotal">是否查询总数</param>
/// <returns>视频数据化结构数据集合</returns>
public virtual PageModel <VideoStruct> QueryList(List <Lane> lanes, VideoStructType structType, DateTime startTime, DateTime endTime, int pageNum, int pageSize, bool hasTotal)
{
return(SelectList(BranchDbConvert.GetQuerables(startTime, endTime, _context.Queryable(structType)), lanes.Select(l => l.DataId).ToHashSet(), startTime, endTime, pageNum, pageSize, hasTotal));
}
/// <summary>
/// 按车道查询多组流量数据
/// </summary>
/// <param name="lanes">车道集合</param>
/// <param name="level">时间粒度</param>
/// <param name="startTimes">开始时间集合</param>
/// <param name="endTimes">结束时间集合</param>
/// <returns>流量数据集合</returns>
public virtual List <List <LaneFlow> > QueryList(List <Lane> lanes, DateTimeLevel level, DateTime[] startTimes, DateTime[] endTimes)
{
return(startTimes.Select((t, i) => SelectList(BranchDbConvert.GetQuerables(t, endTimes[i], _flowContext.Queryable(level)), lanes.Select(l => l.DataId).ToHashSet(), level, t, endTimes[i])).ToList());
}
