Combining Heatmaps and ScatterSeries does not work.

[lostinspacebar]

Steps to reproduce

1. Create a plot with a DateTimeAxis on X-axis. LinearAxis on Y-axis.
2. Add a LinearColorAxis (for heatmap)
3. ScatterSeries added no longer show up on the plot.

Platform:
.NET version: 4.5.2
OxyPlot Version: 1.0.0.0

Actual behaviour

The following is what my plot looks like with everything except for the HeatMapSeries and the accompanying LinearColorAxis to show the Heatmap (i.e. just ScatterSeries and LineSeries):

So far so good.

Now I add in a LinearColorAxis -- without any Heatmap data yet and I get the following:

As you can see the ScatterSeries have disappeared for some reason. All the points are still there (I can use the tracker to see that they still exist) and HitTestResults work as expected --- they just don't show. The LineSeries that connects the points on the ScatterSeries does still show though.

Actually adding the heatmap data does show the heatmap data, but the ScatterSeries are still missing. I've tried adding Axis Keys and assigning them to Series as appropriate but still no dice.

The following is my code for the Axes:

var xAxis = new DateTimeAxis();
xAxis.Key = "X";
xAxis.Position = AxisPosition.Bottom;
xAxis.AbsoluteMinimum = DateTimeAxis.ToDouble(CurrentPass.AOS);
xAxis.AbsoluteMaximum = DateTimeAxis.ToDouble(CurrentPass.LOS);
xAxis.AxislineColor = xAxis.TextColor = xAxis.TicklineColor = xAxis.MajorGridlineColor = OxyColors.DarkGray;
var yAxis = new LinearAxis();
yAxis.Key = "Y";
yAxis.Position = AxisPosition.Left;
yAxis.AbsoluteMinimum = 0.0;
yAxis.AbsoluteMaximum = MaximumFrequency;
yAxis.Maximum = MaximumFrequency;
yAxis.AxislineColor = yAxis.TextColor = yAxis.TicklineColor = yAxis.MajorGridlineColor = OxyColors.DarkGray;
var heatmapAxis = new LinearColorAxis();
heatmapAxis.AbsoluteMinimum = 0.0;
heatmapAxis.AbsoluteMaximum = MaximumFrequency;
heatmapAxis.Palette = OxyPalettes.Gray(1024);
heatmapAxis.Key = "HeatMap";            
LEOPassModel.Axes.Add(xAxis);
LEOPassModel.Axes.Add(yAxis);
LEOPassModel.Axes.Add(heatmapAxis);

Expected behaviour

The ScatterSeries should show as in the first picture but with the heatmap behind.

[kchad]

This comment helped me workaround this issue:

[xcosmos6]

This comment helped me workaround this issue:

May I ask what is your workaround? Thank you!@kchad

[kchad]

my workaround was to create the points with x, y, size and value (e.g. new ScatterPoint(x, y, 2, .2))

[xcosmos6]

my workaround was to create the points with x, y, size and value (e.g. new ScatterPoint(x, y, 2, .2))

I did that. Maybe my problem is different. I am trying to get the tracker to show the scatterseries instead of the heatmapseries, After the disabling the tracker of the heatmapseries, the scatterseries's tracker does not show. Do you have any idea how to go around that? Thank you very much!@kchad