Forums

Hi,

wpf schichart dataseries length is 2048
_dataSeries[i] = new XyDataSeries<DateTime, double> { FifoCapacity = 2048, AcceptsUnsortedData = true };

But i am looping to fill the data in scichart for 1024 times only, so to fill 2048 length, 2 times have to loop of 1024

_dataSeries[channel].Append(Datetime, value);

please find the issue if i do the above process in image1, in middle of the graph can find little thickness of wave at a straight line(because of no data) instaed of wave

if i loop 2048 times to fill at once graph is getting freeze, even if i select more channels(as in image on the right side showing showing 8 channels) data wont display

hi support,

I asked a question about drawing color bands according to category and I am pointed to this thread

This seems to be the solution I am looking for, however, now I need to show category below the axis label but above the axis title… as shown in the attached image. currently what I did is to create style for AxisTitle to include another SciChart surface with dummy Y-Axis (disabling the MajorTicks, MinorTicks, Bands, Major/Minor gridlines) and one customized NumericAxis as given by the example shown in the thread.

I feel the code will be very complicated if I want to handle different axis type during run-time, may I know if there is any better way to accomplish this?

(P/S: how can I search back the questions that I have posted before if I didn’t bookmark it?)

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.

Is there a way to extend the trial version license?

Hi,

When I used scichart real-time graph for 3 days(no stop), It does not draw smoothly.

It looks broken… draw, wait for 1 second, draw, wait…..(repeat)

but first day, It worked well..

Why is it??

I use buffer size(1843200) and draw 80 fast lines.

and Memory in my PC is 16GB.

Please help me to solve this problem….

Hello.
Using SciChart v2.2.
BaseRenderableSeries.HitTest(MousePoint) triggers not only in series pane, but also in other panes.

My hit-test code is below, called from public override void OnModifierMouseMove(ModifierMouseArgs mouseEventArgs)

foreach (var renderSeries in ParentSurface.RenderableSeries)
            {
                var series = renderSeries as BaseRenderableSeries;
                bool isCandleSeries = ((series as FastCandlestickRenderableSeries) != null);

                if (series != null && series.DataSeries != null)
                {
                    var hitTest = series.HitTest(mouseEventArgs.MousePoint);

                    if (hitTest.DataSeriesType == DataSeriesType.Ohlc)
                    {
                        seriesAnnotaion[k].X1 = hitTest.DataSeriesIndex;
                        seriesAnnotaion[k].Y1 = hitTest.CloseValue;

                        if (hitTest.IsHit)
                        {
                            //show tooltip
                        }
                     }
                  }
               }

I am considering applying server-side licensing for my javerScript application.

In the document below, there is a phrase “Our server-side licensing component is written in C++.”
(https://support-dev.scichart.com/index.php?/Knowledgebase/Article/View/17256/42/)

However, there is only asp.net sample code on the provided github.
(https://github.com/ABTSoftware/SciChart.JS.Examples/tree/master/Sandbox/demo-dotnet-server-licensing)

I wonder if there is a sample code implemented in C++ for server-side licensing.

Can you provide c++ sample code?
Also, are there any examples to run on Ubuntu?

Hi,

I have several chart panes that share a mouse group and a shared visual range (I inject the shared visual range of type IRange in the constructor of the pane view model). I then set the XAxis visual range to the shared visual range inside each pane view model. However, when I use either of the below approaches outside of the pane view model to adjust the min and max of shared visual range, the Xaxis.VisualRange of each pane does not reflect that change.

Approach A: _sharedVisualRange.Min = ….; _sharedVisualRange.Max = …
Approach B: _sharedVisualRange.SetMinMax(….)

Neither approach actually impacts the XAxis.VisualRange.Min/Max.

Initially when I created the XAxis in code I set its VisualRange equal to the shared visual range that was injected via constructor, like :

XAxis = new CategoryDateTimeAxis()
{
……
……
VisualRange = _sharedVisualRange,
…..
};

Please note that all the above refers to code in the view model. I bind the XAxis in the pane view model to the XAxis of the surface in xaml.

My entire synchronization heavily relies on the assumption of this working, but it does not.

https://www.scichart.com/documentation/ios/v2.x/Tutorial%2002%20-%20Creating%20a%20SciChartSurface.html

Can someone please point me to where I can complete this tutorial.

Why end this tutorial like this??

// That’s it! The SCIChartSurface will now display on the screen with default axis ranges

As is, it simply displays the x and y values. Nothing else.

How can I add my x and y values so that I can display my graph

Hi,

I’m in need to draw polygons around series, so they must scale correctly when zooming and support transparency.
So far I am unable to find a native and simple way to do it, can anybody help me?

Thank you so much

Hi,

I attached two images of what I need to do (easier than explaining it), I’m interested in the blue polygon, It could resemble the use of columns with the polar chart, but not quite, is there a simple way to do this or could someone point me to the right direction?

Thank you

Alex

I have 2 series of data in my chart like this:

<s3D:SciChart3DSurface.RenderableSeries>

</s3D:SciChart3DSurface.RenderableSeries>

My question is, how can I bind multiple series to the RenderableSeries of the SciChartSurface instead, because that requires an ObservableCollection , which is not the same as the XyzDataSeries3D the series are being bound to.

I have a CompositeAnnotation and set CoordinateMode to RelativeX.

How to get absolute X position of the annotation in code behind?

<s:CompositeAnnotation.Annotations>
    <s:VerticalLineAnnotation
                              CoordinateMode="RelativeX"                               
                              IsEditable="True" 
                              CanEditText="True"
                              x:Name="MainAnnotation">
        <s:VerticalLineAnnotation.AnnotationLabels>
            <s:AnnotationLabel Text="My annotation"
                               CanEditText="True"
                               LabelPlacement ="Right"
                               />

        </s:VerticalLineAnnotation.AnnotationLabels>

    </s:VerticalLineAnnotation>

Hello,
I have a chart with four y-axes(4 Charts in one, YAxisId’s are Ch0,Ch1,Ch2,Ch3) and want to create a Boxannotaion which range over all four charts.
How can I specify a BoxAnnotation for more than one YAxisId?
And how can i change the X;Y-Values of the box programmatically?(Example: I press a button and the box should move xx positions on the X-Axes).

I’v tried the latest version[6.5] of SciChart WPF suite and THEN I activated an older version [6.2] in the same computer. Of course, the serial key was left by an ex-colleague. It’s strange that I can activate ver 6.2 and succeed to get a run-time key. But the key cannot be recongnized by the program. It said I didn’t input a run time key in the render surface.
What’ worse, there are no entities rendered in the SciChartSurface. Just show a blank one.

This issue could be reproduced by the following steps:
1. use a trial version of the latest SciChart;
2. activate an older version using an expired license key. [royalty use, right?]

If I reinstall the OS, and use ver 6.2 directly, all works well.

We’ve brought several 6.2 s, I think reinstall OS is not a smart method to solve this. Could it be solved in a more easy way?

Hi,

I’m using the YAxisDragModifier to pan one or more Yaxis.

// Add a new YAxisDragModifier for this axis
var yAxisDragModifier = new YAxisDragModifier();
yAxisDragModifier.DragMode = AxisDragModes.Pan;
yAxisDragModifier.AxisId = axisId;
yAxisDragModifier.ReceiveHandledEvents = true;
yAxisDragModifier.MouseUp += new System.Windows.Input.MouseButtonEventHandler(yAxisDragModifier_MouseUp);
yAxisDragModifier.MouseDown += new System.Windows.Input.MouseButtonEventHandler(yAxisDragModifier_MouseDown);
                this.ChartModifier.ChildModifiers.Add(yAxisDragModifier);

I like to capture the MouseUp event, but it won’t work.
How can I do this?

Thanks and best regards,
Egbert

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?

Hi,

I’m using 2 annotation markers, one horizontal and one vertical.

In xaml:

            <SciChart:SciChartSurface.Annotations>
                <SciChart:HorizontalLineAnnotation HorizontalAlignment="Stretch" IsEditable="True" LabelPlacement="Axis" LabelTextFormatting="0.0" ShowLabel="True" Stroke="Orange" StrokeThickness="2" Y1="{Binding Path=UpRightMarkerYPos, Mode=TwoWay}" IsHidden="{Binding Path=TimeChartMarkerIsHidden}"/>
                <SciChart:VerticalLineAnnotation VerticalAlignment="Stretch" IsEditable="True" LabelPlacement="Axis" LabelTextFormatting="0.0" ShowLabel="True" Stroke="Orange" StrokeThickness="2" X1="{Binding Path=BowMarkerXPos, Mode=TwoWay}" IsHidden="{Binding Path=TimeChartMarkerIsHidden}"/>
            </SciChart:SciChartSurface.Annotations>

I’ve set the LabelPlacement on Axis, so I expect that the labels will not be drawn over the graphical data.
It works fine for the Vertical one, but the horizontal marker will display the label over the data, so I can’t see a part of my graph anymore.
How can I position the label so it will not be on top of the graphical data?

Thanks,
Egbert

Hi,

StackedColumnRenderableSeries tooltip doesn’t appear until cursor position to the top of the bar. Is there any setting that I can show tootip if cursor is on the body of a stack?

Thanks & Regards,
Charith

Hi there.

It’s has been asked here:
https://www.scichart.com/questions/question/custom-annotation

So, Is it possible to draw dashed line annotation at the current version 1.2.3.982?

Best regards,
Sushynski Andrei

Hi, i am developping a spectogram, screenshot : https://i.ibb.co/7CPTZbg/screenshot-framed.png

I get the same result from your showcase, now there is some things i want to change but can’t resolve to know how to :
– How can i change data direction to spread from left to right ? (currently right to left)
– How can i clear FastUniformHeatmapRenderableSeries ? Method clear doesn’t work
– How can we set width of FastUniformHeatmapRenderableSeries’s layout to be fixed to a specific seconds number ? (example : there is 10 seconds of data between left and right)

Thank you,
Wavely

I need to create plenty of reports and presentations (word/power point) and graphics is a key component
Unfortunately Bitmap does not make the work, I use EMF format from other applications that can be inserted
beautifully in word/power point,

any plans to support EMF in the nearer future? I think it is a key format for reports and ppt

Thanks and Regards

William

I’m having some difficulty with the RolloverData PropertyChanged notification. I have attached an event handler based on your code, which is triggered as I mouse over the chart, but the SeriesInfo collection always has a count of 0. The data bound rollover block does update correctly.

Any ideas?