private byte[] GetVehicleChartBytes(int userId, int vehicleId, Func <StatisticSeriesEntry, double> yValueAccessor)
{
Debug.Assert(yValueAccessor != null);
StatisticSeries seriesData = chartDataService.CalculateSeriesForVehicle(userId, vehicleId,
DateTime.UtcNow.AddMonths(-12), null);
var myChart = new Chart(width: 250, height: 120);
if (ChartController.PlotSingleChartLine(myChart, seriesData.Entries, yValueAccessor))
{
return(myChart.GetBytes("jpeg"));
}
else
{
return(null);
}
}
private byte[] GetChartBytes(int userId, Func <StatisticSeriesEntry, double> yValueAccessor, string chartTitle)
{
Debug.Assert(yValueAccessor != null);
var seriesData = this.chartDataService.CalculateSeriesForUser(userId, DateTime.UtcNow.AddMonths(-12), null);
var myChart = new Chart(width: 800, height: 450)
.AddTitle(chartTitle)
.AddLegend();
if (ChartController.PlotMultipleChartLine(myChart, seriesData.Entries, yValueAccessor))
{
return(myChart.GetBytes("jpeg"));
}
else
{
return(null);
}
}