bar plot visibility when using horizontal DateTime units #944
Description
My sample code to generate horizontal stacked bar chart with datetime to be display as x-axis. However, when I was try to set x-axis limit to the range of minDateTime.AddSeconds(-1).ToOADate() till maxDateTime.ToOADate(), the bar chart does not displayed out. I had to zoom out to certain scale only the chart appear.
P/S: minDateTime is the minimum datetime of datasets in the chart, whereas maxDateTime is the maximum datetime of datasets in the chart.
Random r = new Random();
mcChartObj.Insert(0, new MCChartObject()
{
xs = new double[] { 1 },
ys = new double[] { DateTime.Now.AddMinutes(count).ToOADate() },
color = !machineRunning
&& !machineError ? System.Drawing.Color.Yellow : machineRunning
&& !machineError ? System.Drawing.Color.GreenYellow : System.Drawing.Color.Red,
});
mcChart.plt.Clear(p => p is PlottableBar);
foreach (MCChartObject model in mcChartObj)
{
mcChart.plt.PlotBar(model.xs, model.ys, fillColor: model.color, horizontal: true, barWidth:0.1);
}
var min = mcChartObj.Min(x => x.ys[0]);
DateTime minDateTime = DateTime.FromOADate(min);
var max = mcChartObj.Max(x => x.ys[0]);
DateTime maxDateTime = DateTime.FromOADate(max);
mcChart.plt.Axis(minDateTime.AddSeconds(-1).ToOADate(), maxDateTime.ToOADate());
mcChart.plt.Ticks(dateTimeX: true);
Application.Current.Dispatcher.Invoke(() => { mcChart.Render(true); });
count++;