private void UpdateGraph(PlotModel model, MSet <EzDataPoint> points)
{
model.Series.Clear();
var allSeries = new BMultiMap <string, EzDataPoint>((a, b) => string.CompareOrdinal(a, b));
foreach (var dp in points)
{
allSeries.Add(dp.Series, dp);
}
// Add text labels to axis if the data uses text Parameters
CategoryAxis cAxis = null;
if (points.Any(dp => dp.Parameter is string))
{
var headings = new SortedSet <string>(points.Select(dp => dp.Parameter as string).WhereNotNull());
cAxis = model.Axes.OfType <CategoryAxis>().SingleOrDefault();
if (cAxis == null)
{
model.Axes.Add(cAxis = new CategoryAxis {
MajorGridlineStyle = LineStyle.Dot,
Position = AxisPosition.Bottom
});
}
cAxis.Labels.Clear();
foreach (var text in headings)
{
cAxis.Labels.Add(text);
}
cAxis.Key = "CategoryAxis";
}
int iSeries = 0;
foreach (var series in allSeries.Values)
{
if (series.Any(p => p.Parameter is string))
{
var plotSeries = new ColumnSeries {
Title = series.First().Series
};
plotSeries.XAxisKey = cAxis.Key;
foreach (var dp in series)
{
plotSeries.Items.Add(new ColumnItem(dp.Value, cAxis.Labels.IndexOf(dp.Parameter.ToString())));
}
model.Series.Add(plotSeries);
}
else
{
var plotSeries = new LineSeries {
Title = series.First().Series
};
if (cAxis != null)
{
plotSeries.XAxisKey = cAxis.Key;
}
// There are 7 marker types starting at 1, excluding None (0)
plotSeries.MarkerType = (MarkerType)((iSeries % 7) + 1);
plotSeries.MarkerSize = 4;
plotSeries.MarkerFill = plotSeries.Color;
foreach (var dp in series)
{
plotSeries.Points.Add(new OxyPlot.DataPoint(Convert.ToDouble(dp.Parameter), dp.Value));
}
model.Series.Add(plotSeries);
}
iSeries++;
}
}