private string CreateGraph(Dictionary <string, string> rawParameters)
{
if (_result.Count == 0)
{
return(NoDataCaption);
}
if (!_compareType.IsNumeric())
{
return("no numeric comparison");
}
var parameters = new TimeSeriesGraphParameters(rawParameters);
var startTimestamp = parameters.StartTimestamp;
var endTimestamp = parameters.EndTimestamp;
// we need to recalculate the boundary values if limits were provided
var recalculateNeeded = startTimestamp != null || endTimestamp != null;
var dataSubset = recalculateNeeded ? _result.Subset(startTimestamp, endTimestamp) : _result;
if (dataSubset.Count == 0)
{
return(NoDataCaption);
}
var yDimension = Dimension.GetValueRange(dataSubset.Values, parameters.MinValue, parameters.MaxValue);
startTimestamp ??= dataSubset.Keys.First();
endTimestamp ??= dataSubset.Keys.Last();
var chart = new TimeSeriesChart();
return(chart.ChartInHtmlFor(
dataSubset,
new AxisLimits(startTimestamp.Value, endTimestamp.Value, yDimension),
new Size(parameters.Width, parameters.Height)
));
}
public void TimeSeriesChartVerySmallRangeTest()
{
var table = new MeasurementComparisonDictionary();
var startTimestamp = DateTime.Today;
const double minY = 49.93;
const double maxY = 50.02;
table.Add(startTimestamp, new MeasurementComparisonMock("49.95", "49.95", CompareOutcome.None));
table.Add(startTimestamp.AddSeconds(1), new MeasurementComparisonMock("50.0", "50.0", CompareOutcome.None));
// Ading a double NaN to check whether that is ignored
table.Add(startTimestamp.AddSeconds(2), new MeasurementComparisonMock("NaN", "NaN", CompareOutcome.None));
var chart = new TimeSeriesChart();
var base64Result = chart.ChartInHtmlFor(table,
new AxisLimits(startTimestamp, startTimestamp.AddSeconds(1), new Dimension(minY, maxY)),
new Size(800, 600));
AssertChartImage(base64Result, SmallRangeFile, nameof(TimeSeriesChartVerySmallRangeTest));
}
public void TimeSeriesChartMinutesTimeTest()
{
var table = new MeasurementComparisonDictionary();
var startTimestamp = DateTime.Today;
const double minY = -1;
const double maxY = 50;
table.Add(startTimestamp, new MeasurementComparisonMock("49.95", "49.95", CompareOutcome.None));
table.Add(startTimestamp.AddSeconds(9660), new MeasurementComparisonMock("-0.50", "-0.50", CompareOutcome.None));
table.Add(startTimestamp.AddSeconds(19320), new MeasurementComparisonMock("3.00", "3.20", CompareOutcome.OutsideToleranceIssue));
var endTimestamp = table.Last().Key;
var chart = new TimeSeriesChart();
var base64Result = chart.ChartInHtmlFor(table,
new AxisLimits(startTimestamp, endTimestamp, new Dimension(minY, maxY)),
new Size(800, 600));
AssertChartImage(base64Result, MinutesTimeRangeExpectedFile, nameof(TimeSeriesChartMinutesTimeTest));
}