public static bool Export(DateTime[] timestamps, Series[] series, TimeSpanOption aggregationPeriod, string filename, BackgroundWorker worker = null, GroupingType groupingType = GroupingType.Centered)
{
var progress = 0;
var firstTimeStamp = timestamps.Min().RoundDown(aggregationPeriod.TimeSpan);
var finalTimeStamp = timestamps.Max().RoundUp(aggregationPeriod.TimeSpan);
var totalTimeSpan = finalTimeStamp - firstTimeStamp;
var sortedTimestamps = timestamps.OrderBy(x => x).ToArray();
var halfOfTimeSpan = aggregationPeriod.TimeSpan.Subtract(new TimeSpan(aggregationPeriod.TimeSpan.Ticks / 2));
var aggregatedTimestamps = new List <DateTime>();
var currentTimestampIndex = 0;
for (var timestamp = firstTimeStamp; timestamp <= finalTimeStamp; timestamp = timestamp.Add(aggregationPeriod.TimeSpan))
{
aggregatedTimestamps.Add(timestamp);
var inclusiveStart = DateTime.MinValue;
var exclusiveEnd = DateTime.MaxValue;
switch (groupingType)
{
case GroupingType.Centered:
inclusiveStart = timestamp - halfOfTimeSpan;
exclusiveEnd = timestamp + halfOfTimeSpan;
break;
case GroupingType.Forward:
inclusiveStart = timestamp;
exclusiveEnd = timestamp.Add(aggregationPeriod.TimeSpan);
break;
}
var timestampsList = new List <DateTime>();
while (currentTimestampIndex < sortedTimestamps.Length && sortedTimestamps[currentTimestampIndex] < inclusiveStart)
{
currentTimestampIndex++;
}
while (currentTimestampIndex < sortedTimestamps.Length && sortedTimestamps[currentTimestampIndex] < exclusiveEnd)
{
timestampsList.Add(sortedTimestamps[currentTimestampIndex]);
currentTimestampIndex++;
}
var includedTimestamps = timestampsList.ToArray();
foreach (var x in series)
{
x.AggregatedValues[timestamp] =
x.AggregationModel.AggregationMethod.Aggregate((from includedTimestamp in includedTimestamps where x.Values.ContainsKey(includedTimestamp) select new KeyValuePair <DateTime, float>(includedTimestamp, x.Values[includedTimestamp])).OrderBy(y => y.Key).ToArray(), inclusiveStart, exclusiveEnd, timestamp);
}
if (worker == null || !worker.WorkerReportsProgress)
{
continue;
}
var currentTimeSpan = timestamp - firstTimeStamp;
var currentProgress = (int)(currentTimeSpan.TotalSeconds / totalTimeSpan.TotalSeconds * 100);
if (currentProgress <= progress)
{
continue;
}
worker.ReportProgress(currentProgress);
progress = currentProgress;
}
try
{
using (var writer = File.CreateText(filename))
{
writer.Write("YYYY/MM/DD hh:mm");
foreach (var x in series)
{
writer.Write("," + x.Name);
}
foreach (var aggregatedTimestamp in aggregatedTimestamps)
{
writer.Write(writer.NewLine);
writer.Write(aggregatedTimestamp.ToString("yyyy/MM/dd HH:mm"));
foreach (var x in series)
{
writer.Write(",");
if (x.AggregatedValues.ContainsKey(aggregatedTimestamp) && !float.IsNaN(x.AggregatedValues[aggregatedTimestamp]))
{
writer.Write(x.AggregatedValues[aggregatedTimestamp]);
}
}
}
}
}
catch (Exception)
{
return(false);
}
return(true);
}
public static bool Export(DateTime[] timestamps, Series[] series, TimeSpanOption aggregationPeriod, string filename, BackgroundWorker worker = null, GroupingType groupingType = GroupingType.Centered)
{
var progress = 0;
var firstTimeStamp = timestamps.Min().RoundDown(aggregationPeriod.TimeSpan);
var finalTimeStamp = timestamps.Max().RoundUp(aggregationPeriod.TimeSpan);
var totalTimeSpan = finalTimeStamp - firstTimeStamp;
var sortedTimestamps = timestamps.OrderBy(x => x).ToArray();
var halfOfTimeSpan = aggregationPeriod.TimeSpan.Subtract(new TimeSpan(aggregationPeriod.TimeSpan.Ticks / 2));
var aggregatedTimestamps = new List<DateTime>();
var currentTimestampIndex = 0;
for (var timestamp = firstTimeStamp; timestamp <= finalTimeStamp; timestamp = timestamp.Add(aggregationPeriod.TimeSpan))
{
aggregatedTimestamps.Add(timestamp);
var inclusiveStart = DateTime.MinValue;
var exclusiveEnd = DateTime.MaxValue;
switch (groupingType)
{
case GroupingType.Centered:
inclusiveStart = timestamp - halfOfTimeSpan;
exclusiveEnd = timestamp + halfOfTimeSpan;
break;
case GroupingType.Forward:
inclusiveStart = timestamp;
exclusiveEnd = timestamp.Add(aggregationPeriod.TimeSpan);
break;
}
var timestampsList = new List<DateTime>();
while (currentTimestampIndex < sortedTimestamps.Length && sortedTimestamps[currentTimestampIndex] < inclusiveStart)
currentTimestampIndex++;
while (currentTimestampIndex < sortedTimestamps.Length && sortedTimestamps[currentTimestampIndex] < exclusiveEnd)
{
timestampsList.Add(sortedTimestamps[currentTimestampIndex]);
currentTimestampIndex++;
}
var includedTimestamps = timestampsList.ToArray();
foreach (var x in series)
{
x.AggregatedValues[timestamp] =
x.AggregationModel.AggregationMethod.Aggregate((from includedTimestamp in includedTimestamps where x.Values.ContainsKey(includedTimestamp) select new KeyValuePair<DateTime, float>(includedTimestamp, x.Values[includedTimestamp])).OrderBy(y => y.Key).ToArray(), inclusiveStart, exclusiveEnd, timestamp);
}
if (worker == null || !worker.WorkerReportsProgress) continue;
var currentTimeSpan = timestamp - firstTimeStamp;
var currentProgress = (int)(currentTimeSpan.TotalSeconds / totalTimeSpan.TotalSeconds * 100);
if (currentProgress <= progress) continue;
worker.ReportProgress(currentProgress);
progress = currentProgress;
}
try
{
using (var writer = File.CreateText(filename))
{
writer.Write("YYYY/MM/DD hh:mm");
foreach (var x in series)
{
writer.Write("," + x.Name);
}
foreach (var aggregatedTimestamp in aggregatedTimestamps)
{
writer.Write(writer.NewLine);
writer.Write(aggregatedTimestamp.ToString("yyyy/MM/dd HH:mm"));
foreach (var x in series)
{
writer.Write(",");
if (x.AggregatedValues.ContainsKey(aggregatedTimestamp) && !float.IsNaN(x.AggregatedValues[aggregatedTimestamp]))
{
writer.Write(x.AggregatedValues[aggregatedTimestamp]);
}
}
}
}
}
catch (Exception)
{
return false;
}
return true;
}