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Hello!

I am getting started with SciChart and attempting to use it for a project I’m working on.

I am attempting to make a 3D scatter plot whose data is populated through a ViewModel.

Below is a my xaml:

 <UserControl x:Class="CustomWindow.Pages.Results_Page.Common_Tests.Positional6DOFErrorTest"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:enum="clr-namespace:MultiMet.Interfaces.Common;assembly=MultiMet.Interfaces"
             xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid"
             xmlns:s3D="http://schemas.abtsoftware.co.uk/scichart3D"
             mc:Ignorable="d" 
             d:DesignHeight="360" d:DesignWidth="712">

    <Grid Background="White">
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>

        <!-- Some other stuff I'm doing on the page -->

        <s3D:SciChart3DSurface Grid.Column="1" ShowLicensingWarnings="True"
                        IsFpsCounterVisible="False"
                         IsAxisCubeVisible="True"
                         IsXyzGizmoVisible="False"
                         CoordinateSystem="RightHanded"
                               Background="White" RenderableSeries="{s3D:SeriesBinding RenderableSeries3DViewModels}">
            <!-- Create XAxis -->
            <s3D:SciChart3DSurface.XAxis>
                <s3D:NumericAxis3D TickTextBrush="Black" AxisTitle="X (mm)" DrawMajorBands="True" DrawMajorGridLines="True"
                        DrawMinorGridLines="True"
                        DrawMajorTicks="True"
                        DrawMinorTicks="True"
                        AxisBandsFill="Transparent"
                        FontSize="10"
                        TickLabelAlignment="Camera"
                                   GrowBy="0.1, 0.1"/>
            </s3D:SciChart3DSurface.XAxis>
            <!-- Create YAxis -->
            <s3D:SciChart3DSurface.YAxis>
                <s3D:NumericAxis3D AxisTitle="Z (mm)"
                        AxisBandsFill="Transparent"
                        TickTextBrush="Black"
                        FontSize="10"
                        TickLabelAlignment="Camera"
                                   GrowBy="0.1, 0.1"/>
            </s3D:SciChart3DSurface.YAxis>
            <!-- Create ZAxis -->
            <s3D:SciChart3DSurface.ZAxis>
                <s3D:NumericAxis3D AxisTitle="Y (mm)"
                        AxisBandsFill="Transparent"
                        TickTextBrush="Black"
                        FontSize="10"
                        TickLabelAlignment="Camera"
                                   GrowBy="0.1, 0.1"/>
            </s3D:SciChart3DSurface.ZAxis>

            <!-- Create Interactivity Modifiers for rotating camera -->
            <s3D:SciChart3DSurface.ChartModifier>
                <s3D:ModifierGroup3D>
                    <s3D:OrbitModifier3D ExecuteOn="MouseLeftButton" ExecuteWhen="None"/>
                    <s3D:MouseWheelZoomModifier3D MouseWheelSensitivity="90" />
                    <s3D:FreeLookModifier3D ExecuteOn="MouseRightButton"/>
                    <s3D:TooltipModifier3D IsEnabled="True" SourceMode="AllSeries" ShowTooltipOn="MouseOver"/>
                </s3D:ModifierGroup3D>
            </s3D:SciChart3DSurface.ChartModifier>
        </s3D:SciChart3DSurface>
    </Grid>
</UserControl>

And below I declare and define my scatter plot in the viewmodel (the scatterSeries is an XyzDataSeries3D set somewhere else) :

    PositionalErrorTestModel.RenderSeries3DViewModels = new ObservableCollection<IRenderableSeries3DViewModel>();
PositionalErrorTestModel.RenderSeries3DViewModels.Add(new ScatterRenderableSeries3DViewModel
            {
                PointMarker = new SpherePointMarker3D { Fill = System.Windows.Media.Color.FromRgb(0x78, 0xC3, 0), Size = 5, Opacity = 1 },
                DataSeries = scatterSeries
            });

The chart appears, but the data does not. Is there something I’m missing? Do I need to explicitly call an update to the chart? Because the page the chart is on and the chart does get loaded before the data is populated.

Please let me know if you need to know anymore information.

Thanks for any help you can provide!

Version
6
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Hi Andy,

This all looks correct to me, except how are you filling the scatterSeries DataSeries?

If you set the property SciChart3DSurface.DebugWhyDoesntSciChartRender do you see any warnings or errors in the Visual Studio console window?

Are there any binding errors in the console?

Is the DataContext of the SciChart3DSurface equal to PositionalErrorTestModel? Just ensure your binding is correct.

Finally, we have an example here for 3D MVVM charts. We know that this works and typically if you get no drawing on screen it is either binding errors, no data or no axis (which you have).

Let me know if this helps,

Best regards,
Andrew

  • Andy Murray
    Thank you so much! I found that this actually was correct, but xyzDataSeries3D.Append was actually bugging on me. I trying to load the properties of another object into the the Data Series using the Append function. I fixed it by simply assigning these exact properties to other variables and passing in the variables. Seems like it may have been related to the bug fix quoted in 6.1 Release notes: • SC-5289 Fixed xyzDataSeries3D.Append() method causing issues in 3D Chart
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