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0 votes
0 answers
21 views

Is it possible to plot a continuous vertical line as part of data point markers in line graph? I have used sprite to render text for data points. Now I want to draw a vertical line starting from data point till the peak apex to show which peak it is pointing to. The text labels in point markers are shifted to upward for some peaks to avoid collision and therefore there is a gap between peak apex and the point marker. So this requirement. I tried so far with OR symbol but it is displayed as a vertical dotted line when multiple OR symbols are placed one below another.

0 votes
52 views

Hi,
Is there a property in XAML to display series name of each FastLineRenderableSeries? TIA

0 votes
0 answers
61 views

Is it possible to show a continuous vertical line as part of Data PointMarker in graph? We have managed to show text labels for our peaks using Data Points and point markers. We have used Sprite to display the TextBlock with peak labels. Now we need to show a vertical line starting from the label text up to the tip of peak. For readability we have kept a vertical space between the data point and the peak label. Hence sometimes it becomes difficult to find which peak points to which peak label. However there is no character to represent a long and continuous line. The OR character shows dotted line. Is there any other control we can use inside the sprite to show as a line?

0 votes
387 views

Hi,

I have made the chart vertical by changing X axis alignment to left and Y axis alignment to bottom. After changing like this, im not able to resize the box annotation using all four resize adorners. Only two working, other two resetting Y1 value. below is the code snippet.

<s:SciChartSurface.Annotations>
     <s:BoxAnnotation
         x:Name="rangeBox"
         AnnotationCanvas="AboveChart"
         Background="Red"
         ClipToBounds="False"
         CoordinateMode="RelativeX"
         DragDirections="YDirection"
         IsEditable="True"
         Opacity="0.3"
         ResizeDirections="YDirection"
         X1="{Binding TopDepth, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"
         X2="{Binding BottomDepth, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"
         Y1="0"
         Y2="1"
         YAxisId="Top" />
 </s:SciChartSurface.Annotations>
 <s:SciChartSurface.XAxis>
     <s:NumericAxis
         AutoRange="Once"
         AxisAlignment="Left"
         AxisTitle="Depth [ft]"
         DrawMajorBands="False"
         FlipCoordinates="{Binding FlipYAxis}"
         TitleStyle="{StaticResource AxisTitleStyle}" />
 </s:SciChartSurface.XAxis>
 <s:SciChartSurface.YAxis>
     <s:NumericAxis
         AxisAlignment="Bottom"
         BorderBrush="DarkGray"
         BorderThickness="0,0,0,1"
         DrawMajorBands="False"
         DrawMajorGridLines="True"
         Id="Top"
         TickTextBrush="DarkGray"
         TitleStyle="{StaticResource AxisTitleStyle}" />
 </s:SciChartSurface.YAxis>

Can you please let me know what i’ve missed?

Thanks
-MK

  • Sync Kumar asked 3 months ago
  • last active 2 months ago
0 votes
365 views

Hi,

I am using in my chart a VerticalSliceModifer with a VerticalLineAnnotation.
It works as expected, but I would like to modify the aspect of my VerticalLineAnnotation by adding a marker on the axis on top of the line, exactly as in the attached picture (not a scichart).
Is there a way to do that ?

Best regards,
Jean-Charles Durand

0 votes
348 views

Hi,
Is it possible to show contour of bars in ColumnRenderableSeries3D?
Is there way to do this?

ColumnRenderableSeries3D has a Stroke property, but does not appear to have any effect on setting this property.

best regards
Silvester

0 votes
0 answers
315 views

I am rendering a HeatMap on WPF page using FastUniformHeatmapRenderableSeries which has 3 axes X, Y and Z. The Z values are represented with colors by defining the color palette and gradients. This works perfectly. Now there a need to define color palette in such a way that it will get applied to different parts of the map based on min and max value at that area of the map. To elaborate more, the Z values are basically representing peaks at different areas. So there can be multiple peaks distributed on the map.

What I need is that the top-most part of each peak should be shown in red color and then going down till its base with change in color like orange, yellow, green and blue based on certain range in %. The point to note here is, every peak can have its own min and max values. Peak 1 can start from Z=15 and end at Z=48 and peak 2 can start from Z=3 and end at Z=20. So the colors in the palette should get distributed equally for both these peaks. Top-most area of peak 1 and that of peak 2 should be having same color.
Is this possible in heat map? having say a conditional color palette based on multiple value ranges?

0 votes
401 views

Hi,

I am currently adding a Vertical Slice Modifier with just on Vertical Line inside of it.
The idea is to create a vertical cursor to display Y values for a given X value.
As my chart is a real time chart, I don’t want my cursor position changed expect on user interaction, I set to Relative the CoordinateMode property of my Annotation.

<s:VerticalSliceModifier Name="sliceModifier" ShowTooltipOn="Always" IsEnabled="True">
                    <s:VerticalSliceModifier.VerticalLines>
                        <s:VerticalLineAnnotation IsEditable="True" X1="0.5" Stroke="#D62D15" CoordinateMode="Relative"/>
                    </s:VerticalSliceModifier.VerticalLines>
                </s:VerticalSliceModifier>

The vertical line is correctly displayed at the centre of the surface but point markers and tooltips are not displayed at the line position, it seems the relative coordinate mode is not handle on this area.

Thanks for your help
Jean-Charles

0 votes
0 answers
465 views

I have created a composite annotation that consists of four elements: two VerticalLineAnnotations, a BoxAnnotation, and a TextAnnotation. When I first add the annotation, everything appears correctly. However, when I change between tabs in my TabControl… the BoxAnnotation disappears. The box will reappear when I move the composite annotation a few pixels.

Note: Calling ZoomExtents() or InvalidateElement() does not fix the issue.

I’ve created a simple app to reproduce the issue.

PeakAnnotation.xaml

<s:CompositeAnnotation x:Class="WpfPresentation.Views.PeakAnnotation"
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                xmlns:s="http://schemas.abtsoftware.co.uk/scichart"
                Canvas.ZIndex="1" 
                DragDirections="XDirection"
                ResizeDirections="XDirection"
                IsEditable="True">

<s:CompositeAnnotation.Annotations>
    <s:VerticalLineAnnotation CoordinateMode="Relative" Stroke="#FFBADAFF" StrokeThickness="2" X1="0" X2="0" Y1="0" Y2="1"/>
    <s:VerticalLineAnnotation CoordinateMode="Relative" Stroke="#FFBADAFF" StrokeThickness="2" X1="1" X2="1" Y1="0" Y2="1"/>
    <s:BoxAnnotation x:Name="box" Opacity="0.2" CornerRadius="2" Background="#FFBADAFF" BorderBrush="#1964FF" CoordinateMode="Relative" X1="0" X2="1" Y1="0" Y2="1"/>
    <s:TextAnnotation x:Name="AnnotationTextLabel" CoordinateMode="Relative" X1="0" Y1="0.95" FontSize="12" Foreground="White"/>
</s:CompositeAnnotation.Annotations>

PeakAnnotation.xaml.cs

public partial class PeakAnnotation : CompositeAnnotation
{
    public PeakAnnotation()
    {

    }

    public PeakAnnotation(string annotationText)
    {
        InitializeComponent();
        AnnotationTextLabel.Text = annotationText;
    }

    public string StyleKey { get; set; }

    public Type ViewType => throw new NotImplementedException();
}

MainViewModel.cs

public MainViewModel()
    {
        ChartTitle = "Testing";

        Annotations = new AnnotationCollection();

        var myAnnotation = new PeakAnnotation("My Annotation Title")
        {
            X1 = 40,
            X2 = 50,
            Y1 = 0,
            Y2 = 100
        };

        Annotations.Add(myAnnotation);
    }
    public string ChartTitle { get; set; }
    public AnnotationCollection Annotations { get; set; }
}

MainWindow.xaml

<Window x:Class="SciChartTesting.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:SciChartTesting" xmlns:s="http://schemas.abtsoftware.co.uk/scichart"
    mc:Ignorable="d"
    Title="MainWindow" Height="450" Width="800">

<Window.Resources>
    <local:MainViewModel x:Key="MainViewModel"/>
</Window.Resources>

<Grid DataContext="{StaticResource MainViewModel}">
    <TabControl>
        <TabItem Header="TabOne">
            <Label Content="This is TabOne"/>
        </TabItem>
        <TabItem Header="TabTwo">
            <s:SciChartSurface ChartTitle="{Binding ChartTitle}" Annotations="{Binding Annotations}">
                <s:SciChartSurface.XAxis>
                    <s:NumericAxis VisibleRange="0,100"/>
                </s:SciChartSurface.XAxis>
                <s:SciChartSurface.YAxis>
                    <s:NumericAxis VisibleRange="0,100"/>
                </s:SciChartSurface.YAxis>
            </s:SciChartSurface>
        </TabItem>
    </TabControl>
</Grid>

0 votes
482 views

Hello,

I want to implement a custom deltaX cursor in my software. It consists in two vertical lines that can be moved be the user and the idea to get the delta x (DateTime) between the two lines.
I’ve started to implement it by using two custom VerticalLineAnnotation added to a VerticalSliceManager. As my chart is a real time chart, I don’t want my cursors postions changed exepct on user interaction, that’s why I set to Relative the CoordinateMode property of my two Annotations.
The display and the interaction works fine, but when I try to retrieve the actual position of one cursor to compute the delta I have some trouble to convert the relative position to a DateTime value.
I have override the OnDragDelta() method, the relative value of X1 is correct but when I try to convert it into a DateTime by using FromRelativeCoordinate, I still have Date in 1899. I also try to interpret this as OA Date but I still have wrong date.

Do you have an idea ?
Thanks

 public override void OnDragDelta()
    {
        if (_sciChartSurface.XAxis != null)
        {
            double dataValue = (double)this.FromRelativeCoordinate((double)this.X1, _sciChartSurface.XAxis);
            DateTime classic = new DateTime((long)dataValue);
            DateTime fromOa = DateTime.FromOADate(dataValue);
            Debug.WriteLine("CLASSIC "+ classic);
            Debug.WriteLine("OA "+ fromOa);
        }
    }
0 votes
601 views

On a small PC with only Intel HD Graphics 4600 the DirectX rendering is not supported by SciChart. Thats fine but it should use the fallback render surface.

<s:SciChartSurface 
  RenderPriority ="Low"
  s:VisualXcceleratorEngine.IsEnabled="True"
  s:VisualXcceleratorEngine.FallbackType="{x:Type s:HighQualityRenderSurface}"
  s:VisualXcceleratorEngine.DowngradeWithoutException="True"
  s:VisualXcceleratorEngine.EnableImpossibleMode="True"
  s:PerformanceHelper.EnableExtremeDrawingManager="True"
  s:PerformanceHelper.EnableExtremeResamplers="True"

I got this exception:

    System.Exception: Your GPU is blacklisted for use by the Visual Xccelerator Engine! There are several reasons why a GPU could belong to the blacklist. For example, low computation capabilities of the GPU could cause Timeout Detection and Recovery of Graphics Adapter Drivers by the OS, resulting in crashing the application.
   at SciChart.Charting.VisualXcceleratorEngine.ivc(DependencyObject t, DependencyPropertyChangedEventArgs u)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)

But it should use HighQualityRenderSurface without any exception.

  • Tobias asked 6 months ago
  • last active 1 month ago
0 votes
638 views

Hi,
I’m experimenting with the LegendModifier and want to control which RenderableSeries are shown via the “LegendItemTemplate” approach. The idea is to add a specific tagging class to the RenderableSeries.DataSeries.Tag and use the content inside the LegendItemTemplate which I define in the Window.Resouces.

The tagging Class:

public class DataSeriesTag
{
    public string LegendText { get; set; }
    public bool ShowLegend { get; set; }
}

The LegendItemTemplate:
<Window.Resources>


<Grid.ColumnDefinitions>

</Grid.ColumnDefinitions>

            <!--<CheckBox Width="16" Margin="5,0,0,0"
                HorizontalAlignment="Left"
                VerticalAlignment="Center"
                IsChecked="{Binding RenderableSeries.IsVisible, Mode=TwoWay}"
                Visibility="{Binding RenderableSeries.DataSeries.Tag.ShowLegend, Converter={dxmvvm:BooleanToVisibilityConverter}}" />-->

            <s:PointMarker Grid.Column="1" Margin="5,0,0,0" Width="40" Height="10" VerticalAlignment="Center" HorizontalAlignment="Center"
              DataContext="{Binding RenderableSeries}"
              DeferredContent="{Binding LegendMarkerTemplate}"
              Visibility="{Binding ShowSeriesMarkers, RelativeSource={RelativeSource AncestorType=s:SciChartLegend}, Converter={dxmvvm:BooleanToVisibilityConverter}}" />

            <TextBlock Margin="5,0,5,0"
     Grid.Column="2"
     HorizontalAlignment="Left"
     Text="{Binding RenderableSeries.DataSeries.Tag.LegendText}" />

        </Grid>
    </DataTemplate>
</Window.Resources>

As long as I declare the SciChartSurface.ChartModifier in XAML, it works perfect.
The proplem raises when I bind the ModifierGroup to a ViewModel Property and try to build the LegendModifier there. How can I assign the LegendItemTemplate in the ViewModel?:

legendModifier = new LegendModifier(){
            ShowLegend = true,
            ShowVisibilityCheckboxes = false,
            LegendItemTemplate = ??????
        };
        TheModifiers.ChildModifiers.Add(legendModifier);

Kind regards
Martin

0 votes
619 views

Some customers are reporting the following exception when upgrading to SciChart v6.1.0.13075 or 6.1.1.13136 via NuGet

SciChartSurface didn't render, because an exception was thrown:
Message: Unable to find an entry point named 'CSharp_ResamplingArgs_InputSize_set' in DLL 'VXccelEngine2D'.

Stack Trace: at cnh.zlm(HandleRef dnc, Int32 dnd)
at SciChart.Charting2D.Interop.ResamplingArgs.set_InputSize(Int32 value)
at SciChart.Charting2D.Interop.ExtensionMethods.ToResamplingArgs(ResamplingParams resamplingParams, ResamplingMode resamplingMode, ResamplingArgs resamplingArgs)
at SciChart.Data.Numerics.PointResamplers.ExtremeResamplerBase`2.Execute(IList`1 xColumn, IList`1 yColumn, ResamplingParams resamplingParams, ResamplingMode resamplingMode, IPointSeries pointSeries)
at SciChart.Charting.Model.DataSeries.XyDataSeries`2.ToPointSeriesInternal(ResamplingParams resamplingParams, ResamplingMode resamplingMode, IPointResamplerFactory factory, IPointSeries lastPointSeries)
at SciChart.Charting.Model.DataSeries.DataSeries`2.ToPointSeries(ResamplingParams resamplingParams, ResamplingMode resamplingMode, IPointResamplerFactory factory, IPointSeries lastPointSeries)
at uqw.ttd(AxisCollection bzg, IRenderableSeries bzh, RenderPassInfo bzi, IPointResamplerFactory bzj, IDataSeries& bzk, IndexRange& bzl, IPointSeries& bzm, Int32& bzn, Boolean bzo)
at uqw.ttb(ISciChartSurface bzd, Size bze)
at uqw.RenderLoop(IRenderContext2D renderContext)
at SciChart.Charting.Visuals.SciChartSurface.DoDrawingLoop()

It could be a different exception message but ‘Entry Point not Found in VXccelEngine2D.dll’ is the similar message shown in the exception.

Solution below

0 votes
708 views

After installing the SciChart Licensing Wizard (for current user only), the Wizard hangs and does not display anything, which means I cannot activate the my license.

0 votes
719 views

Sorry for the simple question and please point me to the correct place if I have missed this in the docs.

I am just trying to easily bind the DataSeries of a FastLineRenderableSeries as a custom UserControl.

In my MainView I have placed the custom control:

<customUserControls:CustomLineChart x:Name="CustomLineChart1"
                                                    Grid.Column="1"
                                                    Grid.Row="0" />

My CustomLineChart.xaml is:

 <Grid>
    <sci:SciChartSurface x:Name="simpleLineChart">
        <sci:SciChartSurface.RenderableSeries>
            <sci:FastLineRenderableSeries x:Name="lineRenderSeries"
                                          Stroke="Blue"
                                          StrokeThickness="2" >
            </sci:FastLineRenderableSeries>
        </sci:SciChartSurface.RenderableSeries>

        <!--  Create an X Axis with GrowBy  -->
        <sci:SciChartSurface.XAxis>
            <sci:NumericAxis DrawMajorBands="True"
                             GrowBy="0.1, 0.1" />
        </sci:SciChartSurface.XAxis>

        <!--  Create a Y Axis with GrowBy. Optional bands give a cool look and feel for minimal performance impact  -->
        <sci:SciChartSurface.YAxis>
            <sci:NumericAxis DrawMajorBands="True"
                             GrowBy="0.5, 0.5" />
        </sci:SciChartSurface.YAxis>
    </sci:SciChartSurface>

    <!--ect.....-->

</Grid>

I am trying to figure out how to bind the UserControl lineRenderSeries.DataSeries property in my MainViewModel

So something like this in my MainView.cs:

public partial class MainView : Window
{
    public MainView(MainViewModel vm, IMainFactory mainFactory)
    {
        InitializeComponent();
        DataContext = vm;

        CustomLineChart1.lineRenderSeries.DataSeries = vm.SomeXyDataSeries;
    }
}

Which works if the SomeXyDataSeries is set prior to this object getting created and does not update because it is not bound

Or something like this in my MainView.xaml

<customUserControls:SimpleLineChart x:Name="CoreStrategyPLGraph"
                                                    Grid.Column="1"
                                                    Grid.Row="0" 
                                                    DataSeries="{Binding SomeXyDataSeries}"/>

I have just been having an issue understanding how to properly set up this binding on the UserControl.

Any input/clarification on how to do this would be great!

Thank you,

  • Leland asked 8 months ago
  • last active 8 months ago
0 votes
657 views

I’m using XyDataSeries<Timespan, double> to plot to my chart.

I want to show elapsed time at chart X-Axis label like below

ex) If Timespan value is 1day 2hour 30min 40sec

Default label style: 02:30:40

Label style I want: 26:30:40

How can I set like that?

0 votes
797 views

Hello,

Is there a corresponding Documentation for the 3D Chart like this one for 2D Charts: https://www.scichart.com/example/wpf-chart-example-series-with-metadata/

What I am trying to do is to make some PointMarkers of the ScatterRenderableSeries3DViewModel in the 3D Chart bigger depending on the PointMetadata3D.
For 2D Charts I could accomplish that with the Documentation mentioned above. Now I want to do the same for 3D Charts.

Can someone give me a hint how to do that?

0 votes
899 views

When the GrowBy property on NumericAxis3D is specified, a tooltip modifier on the same 3D chart shows over data points that are not those under the mouse pointer.

To replicate the issue:

  1. Clone the examples project from GitHub and open the SciChart2D3D.Examples solution.

  2. In UniformColumn3D.xaml change the XAxis, YAxis, ZAxis and ChartModifier elements to the following, from line 101 onwards:

    <s3D:SciChart3DSurface.XAxis>
        <s3D:NumericAxis3D AutoRange="Always"  />
    </s3D:SciChart3DSurface.XAxis>
    
    <s3D:SciChart3DSurface.YAxis>
        <s3D:NumericAxis3D AutoRange="Always" />
    </s3D:SciChart3DSurface.YAxis>
    
    <s3D:SciChart3DSurface.ZAxis>
        <s3D:NumericAxis3D AutoRange="Always" />
    </s3D:SciChart3DSurface.ZAxis>
    
    <s3D:SciChart3DSurface.ChartModifier>
        <s3D:TooltipModifier3D HoverDelay="150" CrosshairMode="Lines" ShowTooltipOn="MouseOver" />
    </s3D:SciChart3DSurface.ChartModifier>
    
  3. Run the application and observe that the 3D Charts -> Basic Chart Types -> Uniform Column 3D chart shows a chart with correct tooltips appearing when the mouse is hovered over columns on the chart.

  4. Add GrowBy=”0.1, 0.1″ to each axis property as follows:

    <s3D:SciChart3DSurface.XAxis>
        <s3D:NumericAxis3D AutoRange="Always" GrowBy="0.1,0.1"  />
    </s3D:SciChart3DSurface.XAxis>
    
    <s3D:SciChart3DSurface.YAxis>
        <s3D:NumericAxis3D AutoRange="Always" GrowBy="0.1,0.1" />
    </s3D:SciChart3DSurface.YAxis>
    
    <s3D:SciChart3DSurface.ZAxis>
        <s3D:NumericAxis3D AutoRange="Always"  GrowBy="0.1,0.1"/>
    </s3D:SciChart3DSurface.ZAxis>
    
  5. Run the application again and hover the mouse over the same chart. Note that the tooltop is now shown for a data point different to whichever one the mouse is over at the time, which is incorrect.

1 vote
914 views

Hello,

I bought a license and when I try to deploy my application it seems to be crashing. The application will build and run fine in Visual Studio. I have tried removing the scichart portions from my app and deploying and it runs fine then. I have tried following the tutorial for deployment located here:
https://www.scichart.com/activating-scichart/

but have not had any luck. Would anyone be able to offer any assistance with deploying with scichart?

Thank you for your time and assistance with this,
Max

  • Max Kelly asked 11 months ago
  • last active 11 months ago
0 votes
980 views

Related to: https://www.scichart.com/questions/wpf/exporttofile-exception-the-provided-dependencyobject-is-not-a-context-for-this-freezable

I got no reply…

I’m able to reproduce the issue in the thread above, or at least a similar issue with version 5.4

What my code has is a “Start/Stop” button. When “Start” is pressed, the Axes are cleared and re-initialized.
If just using Start / Stop then it works, but if I export the chart into an image (a PNG in that matter), and after few seconds I click on the “Start”, then few seconds later, the software crash on the exception mentioned above.

From what I’ve been able to debug, the Export to image create a new chart control with all the bindings, and renders it to an image.
When I click on start, then the Axis (in this case, I see that the Y Axes are the ones that cause it) are cleared and created in my view model, and therefore it also affects the chart.
The binding of the chart that was created for the rendering is probably not cleared, so it gets the change event after some time, and Arrange is being called.

I see that ArrangeOverride on the AxisPanel is called, and _axisTitle,Arrange is called at this point the application crashes.

Please fix it.

Btw, this is the stack trace:

Exception Info: System.ArgumentException
at System.Windows.Freezable.RemoveContextInformation(System.Windows.DependencyObject, System.Windows.DependencyProperty)
at System.Windows.Freezable.RemoveInheritanceContext(System.Windows.DependencyObject, System.Windows.DependencyProperty)
at System.Windows.DependencyObject.RemoveSelfAsInheritanceContext(System.Windows.DependencyObject, System.Windows.DependencyProperty)
at System.Windows.Freezable.OnFreezablePropertyChanged(System.Windows.DependencyObject, System.Windows.DependencyObject, System.Windows.DependencyProperty)
at System.Windows.Media.RenderData.PropagateChangedHandler(System.EventHandler, Boolean)
at System.Windows.UIElement.RenderClose(System.Windows.Media.IDrawingContent)
at System.Windows.Media.RenderDataDrawingContext.DisposeCore()
at System.Windows.Media.DrawingContext.System.IDisposable.Dispose()
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at MS.Internal.Helper.ArrangeElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
at System.Windows.Controls.ContentPresenter.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at MS.Internal.Helper.ArrangeElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
at System.Windows.Controls.ContentPresenter.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at SciChart.Charting.Themes.AxisPanel.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Grid.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.StackPanel.StackArrangeHelper(System.Windows.Controls.IStackMeasure, System.Windows.Controls.IStackMeasureScrollData, System.Windows.Size)
at System.Windows.Controls.StackPanel.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Border.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.StackPanel.StackArrangeHelper(System.Windows.Controls.IStackMeasure, System.Windows.Controls.IStackMeasureScrollData, System.Windows.Size)
at System.Windows.Controls.StackPanel.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at MS.Internal.Helper.ArrangeElementWithSingleChild(System.Windows.UIElement, System.Windows.Size)
at System.Windows.Controls.ItemsPresenter.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Border.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Grid.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Border.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.Controls.Control.ArrangeOverride(System.Windows.Size)
at System.Windows.FrameworkElement.ArrangeCore(System.Windows.Rect)
at System.Windows.UIElement.Arrange(System.Windows.Rect)
at System.Windows.ContextLayoutManager.UpdateLayout()
at System.Windows.ContextLayoutManager.UpdateLayoutCallback(System.Object)
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(System.Object)
at System.Windows.Media.MediaContext.RenderMessageHandler(System.Object)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
at System.Windows.Application.RunDispatcher(System.Object)
at System.Windows.Application.RunInternal(System.Windows.Window)
at Unitronics.Shell.UI.App.Main()

0 votes
944 views

Hi, i’m developing an app in WPF and i found that it crashes when i’m dereferencing the user control where my chart lives in and have 1 or more points selected by code in one chart when the other one is not visible.

i would be very apreciated if someone could tell me a hint of where i have to look for the solution or what do this methods do or touch.

more data about the chart:

  • I have 2 fastlinerenderable series each with 2 Yaxis for itselves and 2 shared XAxis.
  • I also have a modified listbox which is have it’s sincronization synced to the chart.
  • have a modifiergroup to pan,zoom and select.

this is my Selectionmodifier:

<scicharts:DataPointSelectionModifier
                        Name="ChartSelection"
                        SelectionFill="#B1B5B2B2" 
                        XAxisId="{Binding XAxisType, NotifyOnTargetUpdated=True}"
                        TargetUpdated="ChartSelection_TargetUpdated"
                        SelectionStroke="#009E9C9C"
                        IsEnabled="{Binding SelectionMode}" >

I think that this is the axis that breaks my program but it needs it to not crash when i select.

this is my stacktrace:

An unhandled exception of type ‘System.NullReferenceException’ occurred in SciChart.Charting.dll

en SciChart.Charting.ChartModifiers.DataPointSelectionModifier.DeselectAllPointMarkers()
en SciChart.Charting.ChartModifiers.DataPointSelectionModifier.OnXAxisIdDependencyPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

I tried to make a program that could replicate the error but i couldn’t.

thanks in advance.

  • Aleix Miret asked 12 months ago
  • last active 11 months ago
0 votes
1k views

Hello is there way to update points in XyDataSeries without Garbage Collector call? Here is my code:

public void RefreshSignal(float[] xData, float[] yData)
{
        if (_series == null)
        {
             _series = new XyDataSeries<float, float>();
            _series.Append(xData, yData);
        }

         for (int i = 0; i < xData.Length; i++)
         {
               _series.Update(xData[i], yData[i]);
         }
}

I may use _series.YValues[i], but then UI will not update.

Main task for me fast update all 25k points in series each 30ms without GC calls.

0 votes
1k views

Hi

I am trying to use StackedMountainSeries to implement the trade data as following pic.
enter image description here

But I noticed an unexpected behavior (incorrect.png).

The blank area is displayed near the center red point (which data value is 0).

How to fill the blank area? And what is the correct way to render the trade data as same as the attached pic?

Thanks,
David.

  • david xue asked 1 year ago
  • last active 1 year ago
0 votes
1k views

Hi there,

I use SciChart v5.4.0.12119 trial to display FastLineRenderableSeries in my WPF application. It works with the default black background. But when I change the background to white (), the background gets messed up in white-black strips.

I tried to disable hardware acceleration. hwndSource.CompositionTarget.RenderMode = System.Windows.Interop.RenderMode.SoftwareOnly; It doesn’t help.

What could cause the issue?

Regards,
Jun

  • Jun Luo asked 1 year ago
  • last active 1 year ago
0 votes
1k views

Hi!

I would like to plot a series as a solid line AND include error bars. The way I do this now is to define a single series:

var fSeries    = new HlcDataSeries<double, double>();
fSeries.SeriesName = $"My Series!";

And then two different ViewModels:

var fLineVm = new LineRenderableSeriesViewModel();
var fErrorVm = new ErrorBarsRenderableSeriesViewModel();

And set the data series to belong to both:

fLineVm.DataSeries = fSeries;
fErrorVm.DataSeries = fSeries;

This looks ok. But when I show the legend, I see “My Series” in the legend twice, and I can control the error bars separately from the line series.

What I want to happen is that I see the series a single time in the legend and if I turn it off (uncheck it) everything disappears.

Right now, i’m adding those two ViewModels to an ObservableCollection of IRenderableSeriesViewModels and then SeriesBinding to display them.

0 votes
1k views

I recently needed to change the Rotation Angle of a polar plot from the default to 90 degrees. We have line annotations for different points on the polar plot. After the change, the annotation was still plotted on the default Rotation Angle.

I manually updated the points like this for the annotations to work:

var line = new LineAnnotation();

                var x1 = (double)NewSeries.DataSeries.XValues[0];
                var x2 = (double)NewSeries.DataSeries.XValues[1];

                if (x1.Between(0, 90) && x2.Between(0, 90))
                {
                    x1 += 270;
                    x2 += 270;
                }
                else
                {
                    x1 -= 90;
                    x2 -= 90;
                }

                line.X1 = x1;
                line.X2 = x2;

Is there another way to update the annotation or is something like this the preferred way?

0 votes
1k views

Hi!

I have a chart that display time-series data and sometimes I have a few minutes of data, other times I have hours. All of the data points are taken every minutes. The X-Axis starts at 0 minutes and progresses from there.

My goal is to have the Axis Title say “Minutes” if there are < 120 points of data. If there are > 120 points of data then I want the Axis to be titled “Hours” and then divide the X-Axis label by 60.

I’ve started with this: https://www.scichart.com/documentation/v5.x/webframe.html#Axis%20Labels%20-%20LabelProvider%20API.html

and it’s doing about what I expect. I check the AxisCore’s Range and if the range is > 120 I set the AxisCore.AxisTitle to “Hours”, otherwise “Minutes”. So far so good.

The problem is that doing it this way means I have labels such as “48.333333” for the hours.

If, on the other hand, when I create the XYSeries that I’m plotting I pass in the already-divided-by-60 values, SciChart seems to select whole numbers so instead of showing me something like “48.333333” it would either show me “48” or it would use 50 or another whole number for the tick marks.

So my question: Is this doable by just writing a custom LabelProvider? Do I need to write a custom Axis class instead? Or somehow tell the Axis that’s in-use to recalibrate itself by dividing all of the elements by 60 before computing tick marks?

In the images I’m attaching, one plot shows me plotting a series where when I create series the x-value is being divided by 60 before I call .Append() on the series. The other one shows what happens when I use my custom LabelProvider and divide by 60 when the Axis label is drawn.

Thanks!

-David

0 votes
1k views

Hello,

I have the problem, that sometimes only one label is shown on the X-Axis even when there is space to show some more, than only one.
The property “IsLabelCullingEnabled” would show them all, but than it is ugly if there is not enough space.
So what can I do to have some more Labels shown?

In the Screenshots you can see that with only a few pixels more, more labels are shown, but the could have been also shown with less pixels (Especially Label “1” and “22” could have been shown).

0 votes
1k views

Hi Team,

I added the PinchZoomModifier to my chart. However, when we do the gesture it does not zoom, instead, it pans the y-axis.
Here is the code:

<s:SciChartSurface s:ThemeManager.Theme="BrightSpark">
            <s:SciChartSurface.ChartModifier>
                <s:ModifierGroup>
                    <s:VerticalSliceModifier ShowTooltipOn="Never">
                        <s:VerticalSliceModifier.VerticalLines>
                            <s:VerticalLineAnnotation Style="{StaticResource SliceStyle}" X1="{Binding SelectedStartDate, Mode=TwoWay}" IsEditable="True"/>
                            <s:VerticalLineAnnotation Style="{StaticResource SliceStyle}" X1="{Binding SelectedEndDate, Mode=TwoWay}" IsEditable="True"/>
                        </s:VerticalSliceModifier.VerticalLines>
                    </s:VerticalSliceModifier>
                    <s:RubberBandXyZoomModifier ExecuteOn="MouseLeftButton"
                                                RubberBandFill="#AA34aeeb" RubberBandStroke="#AAFFFFFF"
                                                RubberBandStrokeDashArray="2 2"/>
                    <s:PinchZoomModifier XyDirection="XDirection"/>
                    <s:MouseWheelZoomModifier XyDirection="XDirection"/>
                    <s:ZoomExtentsModifier ExecuteOn="MouseDoubleClick" />
                    <s:YAxisDragModifier DragMode="Pan"/>
                    <s:XAxisDragModifier DragMode="Pan" ClipModeX="None"/>
                </s:ModifierGroup>
            </s:SciChartSurface.ChartModifier>
            <s:SciChartSurface.XAxis>
                <s:DateTimeAxis AxisTitle="Time" VisibleRange="{Binding XVisibleRange, Mode=TwoWay}"
                                TextFormatting="dd-MMM-yyyy" SubDayTextFormatting="HH:mm:ss" DrawMinorTicks="True" />
            </s:SciChartSurface.XAxis>
            <s:SciChartSurface.YAxis>
                <s:NumericAxis AxisTitle="Distance" VisibleRange="{Binding YVisibleRange, Mode=TwoWay}"/>
            </s:SciChartSurface.YAxis>
            <s:SciChartSurface.RenderableSeries>
                <s:XyScatterRenderableSeries DataSeries="{Binding Chirps}" >
                    <s:XyScatterRenderableSeries.PointMarker>
                        <s:EllipsePointMarker Width="9" Height="9" Fill="SteelBlue" Stroke="LightSteelBlue" StrokeThickness="2"/>
                    </s:XyScatterRenderableSeries.PointMarker>
                </s:XyScatterRenderableSeries>
            </s:SciChartSurface.RenderableSeries>
        </s:SciChartSurface>

Can you please help me to know what’s wrong here?

0 votes
2k views

Hello!

I am trying to programmatically set a range for HeatmapColorPalette and attached HeatmapColorMap to min and max of my data.

Binding HeatmapColorPalette.Maximum to a property in my View Model works well. However, when I add HeatmapColorMap everything breaks, the heat map no longer responds to changes in View Model.

What am I doing wrong?

Here is my View:

<Window x:Class="SciChartHeatMap.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:SciChartHeatMap"
    xmlns:s="http://schemas.abtsoftware.co.uk/scichart"
    d:DataContext="{d:DesignInstance Type=local:HeatMapViewModel, IsDesignTimeCreatable=True}"
    mc:Ignorable="d"
    Title="MainWindow" Height="450" Width="800">
<Grid>
    <Grid.Resources>
        <s:GradientStopsToLinearGradientBrushConverter x:Key="ColorsToLinearGradientBrushConverter"/>
    </Grid.Resources>
    <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition Width="Auto"/>
        <ColumnDefinition Width="Auto"/>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto"/>
        <RowDefinition/>
    </Grid.RowDefinitions>
    <s:SciChartSurface Grid.Row="0" Grid.RowSpan="2">
        <s:SciChartSurface.RenderableSeries>
        <s:FastUniformHeatmapRenderableSeries x:Name="HeatMapSeries" DataSeries="{Binding Data}" Opacity="0.9">
            <s:FastUniformHeatmapRenderableSeries.ColorMap>
                <s:HeatmapColorPalette Maximum="{Binding ColorMaximum}">
                    <s:HeatmapColorPalette.GradientStops>
                        <GradientStop Offset="0" Color="DarkBlue"/>
                        <GradientStop Offset="0.2" Color="CornflowerBlue"/>
                        <GradientStop Offset="0.4" Color="DarkGreen"/>
                        <GradientStop Offset="0.6" Color="Chartreuse"/>
                        <GradientStop Offset="0.8" Color="Yellow"/>
                        <GradientStop Offset="1" Color="Red"/>
                    </s:HeatmapColorPalette.GradientStops>
                </s:HeatmapColorPalette>
            </s:FastUniformHeatmapRenderableSeries.ColorMap>
        </s:FastUniformHeatmapRenderableSeries>
        </s:SciChartSurface.RenderableSeries>
        <s:SciChartSurface.XAxis>
            <s:NumericAxis 
                FlipCoordinates="False" 
                ScientificNotation="None" 
                AutoTicks="False"
                MajorDelta="1"
                MinorDelta="0.5"
                AxisAlignment="Top"/>
        </s:SciChartSurface.XAxis>
        <s:SciChartSurface.YAxis>
            <s:NumericAxis 
                FlipCoordinates="True" 
                ScientificNotation="None"
                AxisAlignment="Left"/>
        </s:SciChartSurface.YAxis>
    </s:SciChartSurface>

    <!-- Enabling this will break the program
    <s:HeatmapColorMap
        Grid.Column="1"
        Grid.Row="0"
        Grid.RowSpan="2"
        Margin="5,0,5,0"
        HorizontalAlignment="Right"
        VerticalAlignment="Stretch"
        DataContext="{Binding Source={x:Reference Name=HeatMapSeries}, Mode=OneWay}"
        ColorMap="{Binding ColorMap.GradientStops, Converter={StaticResource ColorsToLinearGradientBrushConverter}}"
        Maximum="{Binding ColorMap.Maximum}"
        Orientation="Vertical">
    </s:HeatmapColorMap>
    -->

    <Label 
        Grid.Row="0" 
        Grid.Column="2" 
        Content="{Binding ColorMaximum}" 
        Width="50" 
        HorizontalContentAlignment="Center"/>
    <Slider 
        Grid.Column="2" 
        Grid.Row="1" 
        Orientation="Vertical" 
        Minimum="0" 
        Maximum="10" 
        HorizontalAlignment="Center"
        Value="{Binding ColorMaximum}"/>
</Grid>

The idea in this small example is for slider to control both HeatmapColorPalette.Maximum and s:HeatmapColorMap.Maximum

The code in my View Model is pretty simple:

private double mColorMax;

public double ColorMaximum
    {
        get => mColorMax;

        set
        {
            mColorMax = value;
            OnPropertyChanged();
        }
    }

My View Model implements INotifyPropertyChanged

I will appreciate any suggestions.

Thank you in advance!

0 votes
1k views

I am not able to find the data point corresponding to current mouse position on heatmap series PreviewMouseMove event.

Here is my code,

private void Contour_PreviewMouseMove(object sender, MouseEventArgs e)
    {
        var xCalc = Contour.RenderableSeries[0].XAxis.GetCurrentCoordinateCalculator();
        var yCalc = Contour.RenderableSeries[0].YAxis.GetCurrentCoordinateCalculator();
        Point mousePoint = e.GetPosition(((SciChartSurface)sender).ModifierSurface as UIElement);
        double peakXCordInfoValue = xCalc.GetDataValue(mousePoint.X);
        double peakYCordInfoValue = yCalc.GetDataValue(mousePoint.Y);
    }

“Contour” is my SciChart object. When I debugged to find out my X and Y axis data points and compared them with what I find above in peakXCordInfoValue, then they don’t match. Ideally if I am finding the data point then it should match exactly.

I also tried to find index

var index = Contour.RenderableSeries[0].DataSeries.FindIndex(yDataForCoordinate, SearchMode.Nearest);

But it gives error “Operation is not valid due to the current state of the object.”
I also tried cursormodifier and its OnModifierMouseMove event, but it gives same error.

For Example: The actual data point on Y axis is 280.774501562118, and the above code returns 280.523009343212

0 votes
1k views

Hi SciChart!

I am evaluating the trial for possible use in a major project within our organisation.

We have decided to use the System.Reactive reactive extensions as our event handler and I have reached the point where I have an IObservableCollection (instantiated as ObservableCollectionExtended) of where T can be any type containing X and Y values.

My question is, is it possible to Bind a scichart Line Series on to such a collection in order to update via the reactivestream updates?

I’d rather not have to copy points into yet another collection type if possible.

Note: I looked at the nuget for scichart wpf reactive library and that seems to bind on to rx 2.2.5 whereas I’m using system.reactive 4.1.6

Any direction for a new-to-reactive developer would be greatly received.

Greg

0 votes
1k views

I am using a custom CursorModifier class in my WPF code. I have created a class inherited from CursorModifier for this purpose. Now I want to apply cross-hair cursor style to my chart. The style in XAML is not getting applied at all. However, when I use the CursorModifier directly (instead of custom modifier class) in XAML, then it applies.

If I changed the TargetType to “loca:MyCursorModifier”, then it gives error “The memeber StrokeThickness is not recognized” & “The “memeber Stroke is not recognized”.

<UserControl.Resources>
    <Style x:Key="CrossLineStyle" TargetType="Line">
        <Setter Property="StrokeThickness" Value="1" />
        <Setter Property="Stroke" Value="Black " />
    </Style>
</UserControl.Resources>

<local:MyCursorModifier ShowTooltip="False" ShowTooltipOn="Never" ShowAxisLabels="False" SourceMode="AllSeries" LineOverlayStyle="{StaticResource CursorLineStyle}"/>
0 votes
1k views

Hi there!

I am relatively new to C# and I am currently trying to plot a network dependency graph in my wpf application. This is something like a hierarchical edge bundling graph. https://vega.github.io/vega/examples/edge-bundling/

Are there any good plotting libraries out there that can help me achieve this? I have looked into Scichart and it does not seem to be able to do it.

0 votes
2k views

Has anyone encountered this before?

XamlParseException: Unexpected record in Baml stream. Trying to add to SciChartSurface which is not a collection or has a TypeConverter.

<DataTemplate x:Key="SciLineChartTemplate"><Grid><s:SciChartSurface ...

0 votes
2k views

Currently, I’m using a uniform heatmap to display images taken from a monochrome camera. I’m using a RubberBandXyZoomModifier to allow to user to zoom in on a region of interest in the image. The SciChartSurface is set to be 640×480 (the image size) and is hosted in a Viewbox, so it’s size scales uniformly with the grid that it’s in. The problem I’m facing is that when I zoom in, the zoomed part of the image stretches to fit the 640×480 size, changing the pixel aspect ratio, but I want the pixel aspect ratio to stay constant so they are all square. What I want to happen is that extra space is added either on the top/bottom or left/right of the zoomed part of the image so the pixel aspect ratio stays constant. See the attached image for a visual explanation. I think I either need to change the SciChartSurface size or the GridLinesPanel size to match the zoomed area size, but I’m not sure how to go about doing that. Is there a way to achieve this? Thanks!

0 votes
1k views

Hi:

My name is Harold Ramírez and I have a question I would like you to answer because I don’t find any doucmentation about it online.

I have a WPF application with several charts, some of them in 3D. These 3D charts have the X axis in horizontal, Y in vertical and the Z in depth. I want only to keep the labels on the X and Y axis, on the left and bottom of the chart.

The only documentation I have found is this page: https://www.scichart.com/documentation/v5.x/webframe.html#Showing%20Axis%20Labels%20on%20one%20side%20of%20the%203D%20Chart.html, and only shows how to make it in XAML, but I need it to do it programatically in C#.

Thank you for your time.

Harold.

0 votes
0 answers
1k views

Hi:

My name is Harold Ramírez and I have a question I would like you to answer because I don’t find any doucmentation about it online.

I have a WPF application with several charts, some of them in 3D. These 3D charts have the X axis in horizontal, Y in vertical and the Z in depth. I want only to keep the labels on the X and Y axis, on the left and bottom of the chart.

The only documentation I have found is this page: https://www.scichart.com/documentation/v5.x/webframe.html#Showing%20Axis%20Labels%20on%20one%20side%20of%20the%203D%20Chart.html, and only shows how to make it in XAML, but I need it to do it programatically in C#.

Thank you for your time.

Harold.

0 votes
2k views

Hello,

I’m trying to display a vertical line annotation on a chart using MVVM.

In order to make it work I’ve (All the INotifyPropertyChanged are managed via the BaseViewModel)

public class GraphSurfaceBaseViewModel : BaseViewModel
{
    /// <summary>
    /// A list of annotations
    /// </summary>
    public ObservableCollection<IAnnotationViewModel> Annotations { get; private set; }

 ...
}

I create annotation that way

Graph.Annotations.Add(new VerticalLineAnnotationViewModel()
            {
                X1 = TimeOfComment,
                ShowLabel = true,
                StrokeThickness = 2,
                XAxisId = "Xaxis",
                YAxisId = "Yaxis1",
                AnnotationLabels = new ObservableCollection<AnnotationLabel>() { new AnnotationLabel() {Text = "mon test", LabelPlacement = LabelPlacement.TopRight } }

            });

And the binding to the scichartsurface is :

<s:SciChartSurface   
...         
Annotations="{s:AnnotationsBinding Annotations}"            
</s:SciChartSurface>

I’ve double check that my x axis and y axis have the same ID as the annotation.
The problem is I want to display several annotation labels but they are not appearing. I suspect a problem via the AnnotationsBinding which is not taking the AnnotationLabels from the VerticalLineAnnotationViewModel.

What I got :
enter image description here

What I want (paint skill here):
enter image description here

For the what I want, I can draw a simple vertical bar by settings showLabel = false but I suppose that all the label I previously added to the
AnnotationLabels will not be shown, that’s why I let it.

Thank you for any help.

Renaud

0 votes
2k views

Hi,

I’m attempting to attach a generic/abstract DataSeries to an INotifyPropertyChanged object. However, the TX, TY generics seem to block me from using it as expected. Can anyone help me out?

internal class DataSeriesAbstract : INotifyPropertyChanged
{
    public string dataName;
    public double lastAppendedTimestamp = 0.0f;

    public List<AbstractChartViewModel> subscribers;

    // gives an error that TX and TY cannot be found
    public DataSeries<TX, TY> realData;
    public DataSeries<TX, TY> Data
    {
        get { return realData; }
        set
        {
            realData = value;
            OnPropertyChanged(dataName);
        }
    }
...
}

Thank you

0 votes
2k views

Hi all,

Why the API’s for iOS, Android and WPF are not identically?
I have seen many samples on the forum, but to adapt it to a different platform is very hard.
A lot of classes are different for each platform.

  • Is there any “comparison” for the different platforms?
  • Is this planned to unify the API’s?

Regards
Urs

  • Urs Geser asked 2 years ago
  • last active 2 years ago
0 votes
2k views

I’m using Vertical Slice Modifier but, I don’t want to show Tooltip where series intersects.

How can I hide it?

0 votes
2k views

Hi, I want to know buffer structure of 2d fastline.

I use very huge data per line.(maybe about 30,000 points/1 sec are appended to a line.)

But Memory usage is different than expected.

I use fifocapacity, and It is realtime graph.

Appending data, the memory usage increases too much.

Especially, It use more memory when drawing more lines.

For example,
Assuming one line uses 100mb, the five lines use 5000mb not 500mb.

Is it right??

  • CholJin Ko asked 2 years ago
  • last active 2 years ago
0 votes
2k views

Hi!

I’ve tried to access the values to print them in a different view, but I cant reach them. So my question is there a specific way to reach them?

0 votes
2k views

I want to put one vertical line to chart, when mouse left button click inside the chart.
And, I want to put vertical line where nearest plotted X value to mouse cursor location in the chart.
No interpolation.

  • Also, I’m using RubberBandXyZoomModifier ExecuteOn=”MouseLeftButton”
    and

  • ZoomPanModifier ExecuteOn=”MouseRigthButton”

What is the best Modifier to use?
And how can it set like that?

0 votes
2k views

I want to convert XorYAxis value to total chart surface coodinate Point(X, Y), that includes the axises width too.
(Not chart modifier surface coodinate)

How can I get it?

0 votes
2k views

I have a chart that has a DateTime XAxis and a NumericYAxis. I want to do something such as FastLineRenderableSeries.GetYValueAt(datetime) yet i can’t find a suitable extension method for such thing. Seems like a fairly simple thing but the documentation does not cover it.

0 votes
3k views

Hi,
I am drawing real-time chart(512 points per second/ 1 line).
My memory usage shape is like a serrated shape…
I just want to use a certain amount that I set.

Is there any solution or option??

  • CholJin Ko asked 2 years ago
  • last active 2 years ago
1 vote
2k views

We are considering using SciChart (WPF), but only if its performance is ‘reasonable’ across Remote Desktop / or via Citrix Server. Have you addressed the known problems of using WPF applications across RDP / Citrix? If so, could you provide some stats as to the performance across RDP?

The reason we are asking is that our current software in which we are using our own high speed rendering is doing fine with a lot of data on the local machine, but is not doing so well across RDP. This is not a huge surprise given the known issues of WPF and RDP (for example see https://stackoverflow.com/a/1005739/246758). We may need to deal with this slowness as more of our customers are using Citrix-servers to run our software.

Any feedback on performance of SciChart across RDP / or using Citrix would be much appreciated!

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I can’t establish a runtime license in my application because the method doesn’t show up in the intellisense.

SciChartSurface.SetRuntimeLicenseKey.

In fact, no methods exist for this class (I’m assuming this is a static class and method). I’m getting this class via…

SciChart.Charting.Visuals.SciChartSurface.

I’m guessing that this is not where this class is located, but I can’t figure out where it is.

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