Questions

Hello,

I currently have a line chart that colors individual segments of the line different colors using the PaletteProvider and point metadata. I’ve been attempting to add an EllipsePointMarker to the point, and would like to have the fill be the same color as the line itself.

Is there a simple way to set the fill based on the point metadata as well?

Thanks in advance.

Aaron

My X Axis is a TimeSpanAxisViewModel but I’d like to be able to toggle between TimeSpan and DateTime to show elapsed time versus actual time.

For example, the axis could read 00:00:00 to 01:30:00 with TimeSpan but then I could toggle the labels to read 3:45PM to 5:15PM, if the starting time was 3:45PM.

Is there a way to provide a starting DateTime and have it used on the axis labels in place of TimeSpan values?

Thanks!

I have a custom modifier class that extends RubberBandXyZoomModifier and overrides OnModifierMouseUp and OnModifierDoubleClick. When the user mouses up after zooming, is there a property or best practice of determining if the chart is zoomed in or not?

I’m wanting to disable/enable certain features based on the chart being zoomed in or not.

Below is my custom class…

public class CustomRubberBandXyZoomModifier : RubberBandXyZoomModifier
    {
        public override void OnModifierMouseUp(ModifierMouseArgs e)
        {
            Console.WriteLine("MOUSE UP");

            // Determine if the chart is zoomed in or not

            base.OnModifierMouseUp(e);
        }

        public override void OnModifierDoubleClick(ModifierMouseArgs e)
        {
            base.OnModifierDoubleClick(e);

            Console.WriteLine("DOUBLE CLICK");

            // Determine if the chart is zoomed in or not

            ParentSurface.ZoomExtents();
        }
    }

Hi,

We are integrating Sci chart 2D (With multi color data points based on conditions – EXtremeScatterRenderableSeries) for our application.

It worked fine. However, we are not able to see the Legends with the colored range. (Example: 0 to 50: Blue. 51 to 100 Green …Etc.).

Please find the attached file and suggest the solution for this.

Thanks in advance.

I have several series on a surface and currently use the Rollovermodifier. It highlights the datapoint on each series that intersects with the current vertical line of the RolloverModifier. However, I don’t seem to be able to display the corresponding y-values on the Y-Axis. How can I accomplish such? Is there any easy way to show the y-value of each series on the y-Axis that intersects with the vertical line of the Rollovermodifier?

Just purchased and am trying to setup in application and i still get you have zero days left of trial. Attaching pictures. followed instructions here https://www.scichart.com/activating-scichart/

Update used the licensing wizard to activate as first time i activated online. After using licensing wizard it works. but what happens when i deploy application since i had added to my code the set license key?

I would like to add an image or icon to the bottom of the Vertical Line Annotation, where the AnnotationLabel is.

Is there a way to do this using the StyleKey?

I have a lot of Vertical Line Annotations and I am trying to make some of them look different other than just color. I need ways to show different vertical line annotations and this could be one of them.

Hi,
I have to display an image on a SciChartSurface using direct draw. I have seen on the forum that it can be done using ITexture2D and DrawTexture by i can’t achieve it.
Could you provide a small piece of code for that ?

Best regards,
Valentin

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()

我想实现一个功能，需要改变选中区域里面的几根蜡烛颜色为除了涨跌之外的其他颜色，整个功能该怎么实现？

Hi,
I would like to draw a polygon over a heatMap using an inherited class of UniformHeatMapDataSeries.
An example using FastHeatMapRenderableSeries was described here : https://www.scichart.com/questions/wpf/drawing-a-polygon-upon-a-heatmap-chart ,but it is now deprecated since SciCharts V5.

Instead of that, i tried to declare an inherited class of CustomRenderableSeries as shown here :

public class PolygonRenderableSeries : CustomRenderableSeries {
protected override void Draw(IRenderContext2D renderContext, IRenderPassData renderPassData)
{
base.Draw(renderContext, renderPassData);
}
}

What i need now is to pass a List of Polygons to this class in order to draw them directly. I know how to draw a polygon, but i don’t know how to override the renderPassData for adding polygons to it.

Could you help me about that ?
Best regards,

Does SciChart provide a built-in way to display multiple data series on the same 3D chart where the series do not share a common unit or order of magnitude? On a 2D chart I would use a second y-axis via the YAxes collection but I can’t find an equivalent property on the SciChart3DSurface class.

How can I bind to pointmedata ?

 <s:FastLineRenderableSeries  YAxisId="Ch0"
                                        DataSeries="{Binding DataSeries[Marker]}" Stroke="Transparent"
                                        AntiAliasing="False" ResamplingMode="None"  >
                <s:FastLineRenderableSeries.PointMarker>
                    <s:SpritePointMarker>
                        <s:SpritePointMarker.PointMarkerTemplate>
                            <ControlTemplate>
                                <StackPanel Orientation="Horizontal">
                                    <TextBlock Text="Test" Foreground="White"/>
                                    <s:CustomAnnotation >
                                        <s:CustomAnnotation.Style>
                                            <Style TargetType="s:CustomAnnotation">
                                                <Setter Property="Content">
                                                    <Setter.Value>
                                                        <Border x:Name="Border" BorderBrush="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=s:FastLineRenderableSeries},Path=MarkerAnnotationViewModel.BorderBrush}" BorderThickness="1" Width="11"
                        Height="11" Margin="-5,-5,0,0" CornerRadius="1"
                        Background="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=s:FastLineRenderableSeries},Path= PointMetadata.MarkerAnnotationViewModel.Background}">
                                                            <Border.Style>
                                                                <Style TargetType="Border">
                                                                    <Style.Triggers>
                                                                        <DataTrigger Binding="{Binding CanChange, UpdateSourceTrigger=PropertyChanged}"
                                             Value="True">
                                                                            <DataTrigger.EnterActions>
                                                                                <BeginStoryboard>
                                                                                    <Storyboard>
                                                                                        <DoubleAnimation Storyboard.TargetProperty="(Border.Opacity)"
                                                                 From="1" To="0" Duration="0:0:0.75"
                                                                 AutoReverse="True" RepeatBehavior="5x" />
                                                                                    </Storyboard>
                                                                                </BeginStoryboard>
                                                                            </DataTrigger.EnterActions>
                                                                            <DataTrigger.ExitActions>
                                                                                <BeginStoryboard>
                                                                                    <Storyboard>
                                                                                        <DoubleAnimation Storyboard.TargetProperty="Opacity" To="1.0"
                                                                 Duration="0:0:0" />
                                                                                    </Storyboard>
                                                                                </BeginStoryboard>
                                                                            </DataTrigger.ExitActions>
                                                                        </DataTrigger>
                                                                    </Style.Triggers>
                                                                </Style>
                                                            </Border.Style>
                                                        </Border>
                                                    </Setter.Value>
                                                </Setter>
                                            </Style>
                                        </s:CustomAnnotation.Style>
                                    </s:CustomAnnotation>
                                    <TextBlock Text="Test2" Foreground="White"></TextBlock>
                                </StackPanel>
                            </ControlTemplate>
                        </s:SpritePointMarker.PointMarkerTemplate>
                    </s:SpritePointMarker>
                </s:FastLineRenderableSeries.PointMarker>
            </s:FastLineRenderableSeries>

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.

Hi,

I’m trying to add two column series with a different number of data points with the same width per column. There is a suggested solution here:

https://www.scichart.com/questions/wpf/constant-sized-column-bars

but I’m doing it from ViewModel.

So, if I understand it right, I can override GetColumnWidth() in FastColumnRenderableSeries in the new class ConstantColumnRenderableSeries, but how can I add ConstantColumnRenderableSeriesViewModel (overriding ColumnRenderableSeriesViewModel), so that once I add an instance of this newly created class ConstantColumnRenderableSeriesViewModel into RenderableSeries it will add ConstantColumnRenderableSeries to chart and render it?

Thanks in advance!

Hi,

I wanted to try the V3 beta for iOS in objective-c but I don’t know how to format the string with the new license key.

Neither this (as found here: https://www.scichart.com/beta-edition-of-scichart-mobile-sdk-v3-now-available/):

[SCIChartSurface setRuntimeLicenseKey:@""
 "{"
   "\"ActivatedBy\": null,"
   "\"Customer\": \"Anyone\","
   "\"DeveloperCount\": null,"
   "\"ExpiryDate\": \"2019-12-21\","
   "\"Features\": ["
     "\"WPF-2D\","
     "\"AND-2D\","
     "\"iOS-2D\","
     "\"WPF-3D\","
     "\"AND-3D\","
     "\"iOS-3D\""
   "],"
   "\"IsTrialLicense\": true,"
   "\"KeyCode\":" "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,"
   "\"MachineId\": null,"
   "\"OrderId\": \"BETA trial key\","
   "\"ProductCode\": \"SC-BUNDLE-SDK-PRO\","
   "\"SerialKey\": null,"
   "\"TicketQuantity\": null"
 "}"
 ""];

or this (old format style):

  [SCIChartSurface setRuntimeLicenseKey:@""
   "<LicenseContract>"
   "<Customer>Anyone</Customer>"
   "<OrderId>BETA trial key</OrderId>"
   "<LicenseCount>1</LicenseCount>"
   "<IsTrialLicense>true</IsTrialLicense>"
   "<SupportExpires>2019-12-21</SupportExpires>"
   "<ProductCode>SC-BUNDLE-SDK-PRO</ProductCode>"
 "<DeveloperCount>null</DeveloperCount>"
 "<MachineID>null</MachineID>"
 "<SerialKey>null</SerialKey>"
"TicketQuantity>null</TicketQuantity>"
"<Features>[WPF-2D, AND-2D, iOS-2D, WPF-3D, AND-3D, iOS-3D]</Features>" "<KeyCode>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</KeyCode>"
   "</LicenseContract>"

   ];

worked.

I always get the message “Sorry! Your license token appears to be invalid. etc.”
What’s the right way?

Best regards,

Johannes

How to use ClipModeX on our desired values instead of ClipAtExtents or ClipAtMin/Max?

Hi,
We want to use scichart for ios-android and wpf platforms to use in our applications developed by our company for Financial (Trading) purposes. In our review, we found that we can use Linear Trendline for wpf platform in your documents. However, there was no documentation for the android and ios platforms. Since Linear Trendline is of great importance for trading, it is important to know whether this feature is available or if it will be developed as a new feature by you. I would ask you to provide information on the subject.

I see documentation that you can create a pie chart without mvvm and use piechartsegmentitem. It doesn’t appear the same can be done with a wpf chart. Is that correct? Also can animation be changed on wpf donut chart? Thanks.

Hi

Is it possible to control a FastLineRenderableSeries with PointMarkers so I can toggle between the following states:

• Line and points (PointMarker set)
• Line only (PointMarker not set)
• Points only ??

How do I get the Points only mode without replacing the series with a XyScatterRenderableSeries?

/Flemming

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.

Chart not honoring RubberBandFill in custom theme. I have below custom them and it doesn’t honor color but if I set manually in xaml or code it works fine.

I’m rending a number of very small sparkline graphs that don’t need axis labels. As soon as I take the markup below and add DrawLabels=”False” to my Y Axis, I can no longer see any data. What am I missing here?

<s:SciChartSurface RenderableSeries="{s:SeriesBinding Chart.RenderableSeries}">
    <s:SciChartSurface.XAxis >
        <s:DateTimeAxis AutoRange="Always" DrawLabels="False" DrawMajorGridLines="False" DrawMinorGridLines="False" DrawMajorBands="False" DrawMajorTicks="False" DrawMinorTicks="False" >
            </s:DateTimeAxis>
    </s:SciChartSurface.XAxis>

    <s:SciChartSurface.YAxis>
        <s:NumericAxis AutoRange="Always" DrawMajorGridLines="False" DrawMinorGridLines="False" DrawMajorBands="False" DrawMajorTicks="False" DrawMinorTicks="False">
            <s:DoubleRange Min="0.1" Max="0.1"/>
        </s:NumericAxis>
    </s:SciChartSurface.YAxis>
</s:SciChartSurface>

I’m putting together a fairly simply column chart but my columns aren’t appearing how I want them to.

Basically, I’m creating 20 columns for each chart (picture below) and I’m getting various widths (despite setting UseUniformWidth to true and using the same DataPointWidth) and the first column isn’t being shown. The top chart, for example, should be a repeating pattern of red, green, blue, and purple.

Here’s how I’m building the ColumnRenderableSeriesViewModel and adding it to the HighPressureRenderableSeries…

XyDataSeries<int, double> dataSeries = new XyDataSeries<int, double>() { SeriesName = $"{modbus.Name} - {channel.Name}" };

ColumnRenderableSeriesViewModel series = new ColumnRenderableSeriesViewModel()
{
    Stroke = channel.Color,
    DataPointWidth = .1,
    UseUniformWidth = true,
    XAxisId = "ChannelsId",
    YAxisId = "PressureId",
    Fill = channel.ColorBrush,
    DataSeries = dataSeries,
    ZeroLineY = 0.0
};

dataSeries.Append(x: channel.Index, y: channel.Value); // channel.Index goes from 0 - 19

HighPressureRenderableSeries.Add(series);

And here’s the XAML for the High Pressure chart…

<sci:SciChartSurface ChartTitle="High Pressure" RenderableSeries="{sci:SeriesBinding HighPressureRenderableSeries}">
    <sci:SciChartSurface.XAxis>
        <sci:NumericAxis AxisTitle="Channels" Id="ChannelsId" DrawMajorBands="False" />
    </sci:SciChartSurface.XAxis>

    <sci:SciChartSurface.YAxis>
        <sci:NumericAxis AxisTitle="Pressure" Id="PressureId" DrawMajorBands="False" VisibleRange="0,25" VisibleRangeLimit="0,25" />
    </sci:SciChartSurface.YAxis>

    <sci:SciChartSurface.ChartModifier>
        <sci:ModifierGroup>
            <sci:RubberBandXyZoomModifier />
            <sci:ZoomExtentsModifier />
        </sci:ModifierGroup>
    </sci:SciChartSurface.ChartModifier>
</sci:SciChartSurface>

Any tips or advice would be appreciated. I’m sure I’m just missing something simple.

Hello ,

I have created a SimpleScatterChart3D application using the dll’s from SciChart Official Releases NuGet Feeds (myget) and when i plotted 20 thousand data points to the chart i am getting Access Violation Exception in SciChart.Charting.dll .

Can you please let us know how can i resolve this issue.

Thanks

Hi

I want to change to font name & font size for all modifier tooltips (CursrorModifier, RolloverModifier and so on )

I discovered that all tooltips use TextBlocks with style HintDataItemsStyle. This is its definition:

  <!--  Label used in cursors  -->
  <Style x:Key="HintDataItemsStyle" TargetType="TextBlock">
      <Setter Property="apc:RelativeSourceBinding.AncestorType" Value="r:TemplatableControl"/>
      <Setter Property="Foreground" Value="{Binding Path=(apc:RelativeSourceBinding.Ancestor).Foreground, RelativeSource={RelativeSource Self}}" />
      <Setter Property="FontWeight" Value="{Binding Path=(apc:RelativeSourceBinding.Ancestor).FontWeight, RelativeSource={RelativeSource Self}}" />
      <Setter Property="FontFamily" Value="{Binding Path=(apc:RelativeSourceBinding.Ancestor).FontFamily, RelativeSource={RelativeSource Self}}" />
      <Setter Property="FontSize" Value="{Binding Path=(apc:RelativeSourceBinding.Ancestor).FontSize, RelativeSource={RelativeSource Self}}" />
      <Setter Property="Margin" Value="{Binding Path=(apc:RelativeSourceBinding.Ancestor).Margin, RelativeSource={RelativeSource Self}}" />
  </Style>

So, I feel this would be easy to change font parameters just setting them to some parent (due to RelativeSourceBinding.Ancestor binding). But I cannot figure out which. I tried to change font size for series, for axes and even for surface – no result.

I am trying disable AutoRange=”Always” property for SciChartOverview. As for now I see only one way, change SciChartOverview template. But VS generate wrong template for SciChartOverview, chart line gone, after template replacement (I am using “Edit Template” -> “Edit Copy” feature from VS designer mouse context menu )

Here is template:

<s:SciChartOverview.Resources>
    <Style TargetType="{x:Type s:SciChartOverview}">
        <Setter Property="FontSize" Value="20"/>
        <Setter Property="FontWeight" Value="Normal"/>
        <Setter Property="Background" Value="{Binding (s:ThemeManager.Theme), Mode=OneWay, RelativeSource={RelativeSource Self}}"/>
        <Setter Property="Foreground" Value="{Binding (s:ThemeManager.Theme), Mode=OneWay, RelativeSource={RelativeSource Self}}"/>
        <Setter Property="Padding" Value="0"/>
        <Setter Property="Fill" Value="{Binding (s:ThemeManager.Theme), Mode=OneWay, RelativeSource={RelativeSource Self}}"/>
        <Setter Property="Stroke" Value="{Binding (s:ThemeManager.Theme), Mode=OneWay, RelativeSource={RelativeSource Self}}"/>
        <Setter Property="SelectedRange" Value="{Binding Axis.VisibleRange, Mode=TwoWay, RelativeSource={RelativeSource Self}}"/>
        <Setter Property="RenderableSeriesStyle">
            <Setter.Value>
                <Style TargetType="{x:Type s:FastMountainRenderableSeries}">
                    <Setter Property="Fill" Value="{Binding Fill}"/>
                    <Setter Property="DataSeries" Value="{Binding DataSeries}"/>
                    <Setter Property="Stroke" Value="{Binding Stroke}"/>
                </Style>
            </Setter.Value>
        </Setter>
        <Setter Property="RenderableSeriesType" Value="{x:Type s:FastMountainRenderableSeries}"/>
        <Setter Property="ScrollbarStyle">
            <Setter.Value>
                <Style TargetType="{x:Type s:SciChartScrollbar}">
                    <Setter Property="Orientation" Value="Horizontal"/>
                    <Setter Property="GripsLength" Value="25"/>
                    <Setter Property="Background" Value="Transparent"/>
                    <Setter Property="ViewportStyle">
                        <Setter.Value>
                            <Style TargetType="{x:Type Control}">
                                <Setter Property="Opacity" Value="0"/>
                            </Style>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="NonSelectedAreaStyle">
                        <Setter.Value>
                            <Style TargetType="{x:Type Path}">
                                <Setter Property="Fill" Value="{Binding (s:ThemeManager.Theme), Mode=OneWay, RelativeSource={RelativeSource Self}}"/>
                            </Style>
                        </Setter.Value>
                    </Setter>
                </Style>
            </Setter.Value>
        </Setter>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type s:SciChartOverview}">
                    <Grid x:Name="PART_Container">
                        <s:SciChartSurface x:Name="PART_BackgroundSurface" AnimateZoomExtentsCommand="" BorderThickness="0" Background="{TemplateBinding Background}" DebugWhyDoesntSciChartRender="False" Foreground="{TemplateBinding Foreground}" FontWeight="{TemplateBinding FontWeight}" FontSize="{TemplateBinding FontSize}" Padding="{TemplateBinding Padding}" RenderPriority="Normal" UseLayoutRounding="True" ZoomExtentsCommand="">
                            <s:SciChartSurface.ViewportManager>
                                <s:DefaultViewportManager>
                                    <s:DefaultViewportManager.Services>
                                        <Utility:ServiceContainer/>
                                    </s:DefaultViewportManager.Services>
                                </s:DefaultViewportManager>
                            </s:SciChartSurface.ViewportManager>
                            <s:SciChartSurface.YAxis>
                                <s:NumericAxis AutoRange="Always" DrawMajorGridLines="False" DrawMajorBands="False" DrawMinorGridLines="False" IsPrimaryAxis="True" TextFormatting="###E+0" UseLayoutRounding="True" Visibility="Collapsed">
                                    <s:NumericAxis.Services>
                                        <Utility:ServiceContainer/>
                                    </s:NumericAxis.Services>
                                    <s:NumericAxis.TickProvider>
                                        <s:NumericTickProvider/>
                                    </s:NumericAxis.TickProvider>
                                    <s:NumericAxis.TickCoordinatesProvider>
                                        <s:DefaultTickCoordinatesProvider/>
                                    </s:NumericAxis.TickCoordinatesProvider>
                                </s:NumericAxis>
                            </s:SciChartSurface.YAxis>
                            <s:SciChartSurface.YAxes>
                                <s:NumericAxis AutoRange="Always" DrawMajorGridLines="False" DrawMajorBands="False" DrawMinorGridLines="False" IsPrimaryAxis="True" TextFormatting="###E+0" UseLayoutRounding="True" Visibility="Collapsed">
                                    <s:NumericAxis.Services>
                                        <Utility:ServiceContainer/>
                                    </s:NumericAxis.Services>
                                    <s:NumericAxis.TickProvider>
                                        <s:NumericTickProvider/>
                                    </s:NumericAxis.TickProvider>
                                    <s:NumericAxis.TickCoordinatesProvider>
                                        <s:DefaultTickCoordinatesProvider/>
                                    </s:NumericAxis.TickCoordinatesProvider>
                                </s:NumericAxis>
                            </s:SciChartSurface.YAxes>
                        </s:SciChartSurface>
                        <s:SciChartScrollbar x:Name="PART_Scrollbar" Axis="{TemplateBinding Axis}" Height="{Binding ActualHeight, ElementName=PART_BackgroundSurface}" Style="{TemplateBinding ScrollbarStyle}"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</s:SciChartOverview.Resources>

The main task for me, set fixed VisibleRange for YAxis.

I cannot get SCILinearGradientBrushStyle working on a donut chart. Only radial gradients work

Here is my code sample:

let segment = SCIPieSegment()
segment.fillStyle = SCILinearGradientBrushStyle(colorCodeStart: 0xff007aff, finish: 0x4D007aff, direction: .horizontal)
segment.value = 100.0
segment.title = "Segment"
donutSeries.segments.add(segment)

The segment just renders a flat color

I am demoing the product and read the article on using a custom theme. I am trying to get the x and y axis to be white as well. Which property should I use for this?

Trying out the latest SciChart beta and my XML style license no longer works, and redirects me to get a JSON one, which I don’t seem to have

 var annotationMax = new HorizontalLineAnnotation () {
                            Stroke = new SolidColorBrush (Colors.DarkRed),
                            HorizontalAlignment = System.Windows.HorizontalAlignment.Center,
                            Y1 = item.MaxBandwith,
                            Y2 = item.MaxBandwith,
                            X1 = item.FromWavelength,
                            X2 = item.ToWavelength,
                        };
                        var label = annotationMax.AddLabel ();

after last line label is null
???

Hello SciChart,

I’m using SciChart:PerformanceHelper.EnableExtremeResamplers=”True” on my SciChart surface to display data with multiple gaps properly (NaN values), however the XPS output using ExportToFile does not work well and only renders the data to the first gap. Is there a workaround to this issue or how can it be fixed? Thank you.

Kind regards
Ondřej

Hi there,

I am trying to generate a stacked columns chart to display the drivers’ stints during a moorsport race. The problem that I am unable to solve is related to the width of the columns of the graph. Although I am setting datapointwidth = 1.0, so that the column takes all the space, this only happen if I display one driver/column (see images). When adding new driver/columns, the columnwidth of every column shrinks and does not take up all the space (see images). It looks like the datapointwidh follows the next relationship :

Datapointwidth = 1 / Number of Columns

Is there anyway I can force the stackedcolumnrenderableseries to always have a datapointwidth of 1.0?

Hi,
I’m having trouble with YAxis VisibleRange and ZoomExtentsModifier. I want to change the display range of the Y axis dynamically by changing Min and Max of VisibleRange of YAxis from ViewModel. But when ZoomExtentsModifier is executed by double-click etc, Min and Max changes of VisibleRange are not reflected on the screen. If the screen is enlarged or reduced by means other than ZoomExtentsModifier, this state will be resolved and the changes will be reflected.
Please let me know any solution.

Hi

I am trying to use StackedMountainSeries to implement the trade data as following pic.

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.

Hi,

I wanted to setup a heatmap colorpalette where ColorMaximum is dynamic.So heat values starts from 0 to unknown.
I want to have a colormap where heatvalue ranges like 0-10 should be mapped to color A, 10-50 by color B, 50-100 by color C and 100 onwards to maximum value by colorD. Is it possible?

Required ColorPalette as below
0-10 – ColorA
10-50 – ColorB
50-100 – ColorC
100-Infinity- ColorD

Hello,

Does Scichart WPF 2D Pro supports DirectXRenderring feature? If not which product suports it?

Could you tell me how to check all questions I posted in the past?

I have many questions I haven’t got answer yet. Please check if there are questions which ended with my question.

Thank you.

If an observable collection changes with a “Reset” notification, the AxesBinding clears the surface’s axis collection but does not add the new axes from the bound source collection.

The problem seems to be, that SourceCollectionBase<TView, TViewModel> adds the axes from NotifyCollectionChangedEventArgs.NewItems, which is always empty if the action is “Reset” (this is enforced in the constructor of NotifyCollectionChangedEventArgs).

I already have implemented a workaround in my project, but it would be great, if you could fix this bug (and give me a free renewal, so that I can use the fixed version, just kidding).

Update:
SeriesBinding seems to have problems with “Reset” collection changes too. It works on the first “Reset” but not on the second one.