Forums

Hi,

Can I have multiple YAxis in SciStockChart?

Thanks,
Arthur

Hi,

Can I use NumericAxis as XAxis with SciStockChart?

Thanks,
Arthur

Hello,

We would like to use SciChart to show data from a binary file (up to 1 GB!).
What would you suggest as the best method for achieving this?

Thanks

Zoe

More details:
The binary file contains for example the following data: a1b1c1a2b2c2a3b3c3…
where a1 b1 c1 etc are double byte numbers.
In the chart we would like to show 3 series:
serie a: (1,a1) (2, a2) (3,a3) etc
serie b: (1,b1) (2, b2) (3,b3) etc
serie c: (1,c1) (2, c2) (3,c3) etc
Hope this is clear…

Hello all,

Is there an option of having different series, one below the other (like the EEG sample), but all of them with a common x-axis. Which means that zooming is common to all of them.
Also, I would like one cursor to run on all of them together, showing the values of all of them.

So in summary: I would like to have one chart, with many series, one below the other, having each one his y-axis (similar to the “quad left/right Y Axis” but with the charts one below the other like in the EEG sample)

Is this possible???

Thanks and have a very happy new year!!!!

Zoe

Hello all and happy new year,

Today I had a surprise that graph was showing no lines except dots of the cursor for the series line.
I initialize with SciChartSurface.SetLicenseKey(“key here”); I have tried to create the SciChartLicence.xml and this way works.

annex is the example project. just set a correct key and you will have that behaviour.

best regards
Marcel

Hi,

I have a column chart with sparse data. There are about 3000 points (dollar and cent values, i.e. $40.04) spread out over $13900.

I would like to be able to set the columns to take up as much width as possible, but to never encroach on the space in any adjacent points.

For example, if I have a column at $40.04, I would like the column to be drawn in the area stretching from 40.035 -> 40.045 at maximum, so that any possible columns around it (i.e. possible values at 40.03 and 40.05) are never obscured.

Obviously when the chart is zoomed out to maximum limits, the columns will have basically no width, but thats acceptable, as long as when the user zooms in they get some width.

I’ve tried various permutations of the DataPointWidth property, and the only one that is usable is 0, which means the columns never get thicker, even as I zoom in and out (which is not ideal).

Is there any way to do what I want?

Is there a way to guarantee a label at the minimum and maximum axis values?

The min of my data is 0, but I can’t seem to get an axis label to appear at 0. The same goes for the maximum value. This would be very helpful in framing the chart data.

Hi,

I have exception
The argument “barTimeFrame”, value=0, must be greater than 0.

Whats is mean?

Thanks,
Arthur

When chart title is longer than available space, title string is cut from both the sides. Is it possible to set it to left aligned and/or wrap when title is longer that available space?

Please check the attached image.

In Image “Mass Calibration Check…” is displayed as “ss Calibration check…”

Hello again,

I’m trying to see how I can create digital waveforms (AKA square waveforms). I hope you know what I mean.
For example, if I have two points (1,0) and (2, 1), then I want the chart to be steady 0, until it gets to 2 where it goes straight up to 1.
Right now, the way I achieved it, is adding dummy points. In above example I added (1,0)(2,0) (2,1). This will double the number of points. And since we are already dealing with large amounts of data, this is not such a good solution for us. Is there any chart, or any settings on a chart that I can set to obtain this digital waveform?

Thanks

Zoe

Hi,

i have a problem with chart redrawing after the appending of new data. If i understand it correctly, charts update automatically after calling Append. However, if i add single pairs or arrays of data, that does not happen.

To reproduce this, just alter the SciChart WPF example. In LineChartExampleView.xaml.cs, i replaced

var data = DataManager.Instance.GetFourierSeries(1.0, 0.1);

// Append data to series. SciChart automatically redraws
series.Append(data.XData, data.YData);

with

double[] x = new double[100];
double[] y = new double[100];

for (int i = 0; i < 100; i++)
{
    x[i] = i;
    y[i] = i;
}

series.Append(x, y);  

The result after starting the demo and clicking “Create a basic chart” -> “Line chart” can be seen in attachment 1. It requires a left doubleclick to make all the data visible (attachment 2). Why does the chart not rescale and redraw automatically?

Thank you,

Robin

Hello,

it would be fantastic to be able to select the series visualized in the overview control. If i understood correctly, it’s always the first serie that is shown currently.

I added a screenshot, where 2 overviews are used. Both are based on the same first series (Curve 1). To be able to select another curve for overview 2 would be awesome.

Thank’s a lot!

Regards,
Robin

If there a way to bind series color/thickness to a custom control so the line color and thickness changes dynamically when user select a different color/thickness? I will need use this with the MVVM dataseries API.

Hi,

I have real time linear chart. How can I move my chart in backwards from my starting position and shows historical data(I want to add historical data in my chart data series)?

Thanks,
Arthur

Hello there!

How can i remove or change chart indentation?

Hi,

How can I check, that chart is zoomed or paned?

Thanks,
Arthur

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.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?

Is it possible to move the xaxis to the top of the chart instead of the bottom

Hi,

Can I write SciStockChart with DateTimeAxis like:

        <s:SciStockChart SeriesSource="{Binding ChartManager.ChartData, 
                                                UpdateSourceTrigger=PropertyChanged, 
                                                Mode=TwoWay}" 
                         x:Name="SciChart"
                         YAxes="{Binding ChartManager.YAxes}"
                         s:ThemeManager.Theme="Chrome">
            <s:SciStockChart.XAxis>
                <s:DateTimeAxis DrawMinorTicks="True" 
                                DrawMinorGridLines="True" 
                                VisibleRange="{Binding ChartManager.XVisibleRange, 
                                                       UpdateSourceTrigger=PropertyChanged, 
                                                       Mode=TwoWay}"
                                DrawMajorGridLines="True"/>
            </s:SciStockChart.XAxis>
        </s:SciStockChart>

because I have exeption “Axis type DateTimeAxis requires that DataRange and VisibleRange is of type Abt.Controls.SciChart.DateRange”. The XVisibleRange is a IRange type.

Thanks,
Arthur

When I have both the RubberBandXyZoomModifer & RolloverModifer enabled I cannot see the grey selection area of the Rubberband modifer although it still works, is this normal?

Hi,

is it possible to keep the Y axis unchanged with ZoomPanModifier (XyDirection=”XDirection”) and ZoomExtentsModifier?

The RubberBandXyZoomModifier allows this by setting ZoomExtentsY to “False”, but i don’t know how to do this for ZoomPanModifier and ZoomExtentsModifier.

Thanks,
Robin

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.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 folks,

I need to recalculate a number of annotations after a rubberband zoom operation has occurred. I tried handling the chart’s Rendered() event, but this seems to happen too often.

I saw something in the documentation about subscribing to sciChartSurface.Services.GetService, but I’m not sure where or how to do this.

What’s the best way to detect zoom operations? (Ideally this would detect explicit setting of the axis visible ranges too, but since I trigger those manually I can call my routine manually there if necessary.)

Thanks,
–George

Hello guys,

Do series have some property of it renderable type?
I founded in ‘AddRemoveSeries’ example this line

// dataSeries.RenderAs = new LineSeries() { SeriesColor = DataManager.Instance.GetRandomColor() };

Or can you tell how can i add/remove/change series and its renderable style dinamically ?

Im using this code to replace series

void Create (OhlcDataSeries<DateTime, double> ser, SeriesType s …)
{
var renderseries = new FastCandlestickRenderableSeries { };
ChartControl.RenderableSeries.Add(renderseries);
ChartData.Add (ser);
}

void Replace (OhlcDataSeries<DateTime, double> ser, …)
{
int k = GetIndex ();

 ChartData.RemoveAt(k);
 ChartControl.RenderableSeries.RemoveAt (k);
 Create (ser, type ..);

}

Is it right way? looks like pornography
I think there will be some problems with overview
Example:
we got 2 series (price(candles) and ema (line)) overview shows price chart and after we change price series type to line, overview will show ema series, not price

Hello again

Now, im trying to make AnnotationCreationModifier without xaml, but i cant find any event like ‘AnnotationCreated’ and couldnt find any topics/tutorials how to create it without using xaml

Hello,

We have a user story that requires multiple trend lines (around 16) each having different Y axes on a single chart (the data from each set is significantly different in magnitude but the X’s are common)

The multiple Y-axis capability of SciChart would be perfect but 16 axes just takes up too much space from the chart.

Unfortunately Log Y is not acceptable either.

We had one idea – see sketch attached where just the axis min and max for each trend are shown at the bottom/top of a single Y axis – but I would greatly appreciate any comments, thoughts or ideas about how this might be displayed as our one is less than optimal (i.e. it sucks)

Thanks and Kind Regards

Mark

Hi all,

In my chart I have ZoomPanModifier. I should load historical data, when user dragged the chart backwards.

1. How can I catch event when chart drag is completed?
2. Is there any easy way to fill the gaps in the data series? (the gaps are defined in the series as “”)

Best regards,
Arthur

Hi,

I’m trying to set the text format for a date time axis without success, the labels always show time only like hh:mm, no matter what is the textformat string or the zoom level.
Tried with “dd-MMM-yyy hh:mm”, “dd-MMM”, “g”.

Appreciate you help on this.
Thanks

Why are you using .NET System namespaces in your product?

There are namespaces such as System.Diagnostics (and StopWatch class) in the scichart.dll.

This is not “friendly”.

Hi,

I’m using the MVVM pattern with my _chartSeries declared as:
ObjectModel.ObservableCollection(Of IChartSeriesViewModel)

What’s the recommended way to update (not append) data values in one of the data series?

I tried looking for something like _chartSeries]0].DataSeries.Update but couldn’t find anything.

Thanks,
–George

Hi,
I have a very strange problem. When starting my application with referenced SciChart DLL in “Release” mode all works fine.

If I start in DEBUG (Any CPU) mode, I get an error when loading the DLL’s and the application crashes:
“‘SeverVisual.exe’ (Managed (v4.0.30319)): Loaded ‘p:\Projects_ITS\project_sever\SeverVisual\bin\Debug\Abt.Controls.SciChart.Wpf.dll’
First-chance exception at 0x7550b9bc in SeverVisual.exe: Microsoft C++ exception: EEFileLoadException at memory location 0x00148e74..
‘SeverVisual.exe’ (Managed (v4.0.30319)): Loaded ‘Abt.Controls.SciChart.Wpf&’
First-chance exception at 0x7550b9bc in SeverVisual.exe: Microsoft C++ exception: EEFileLoadException at memory location 0x0014ab60..”

In Debugx86 the error message also appears in the output window, but the application can start.

Thanks for help!

Hi,
I’m wondering, if there any chance to hide or change the font size of XAxis label numbers.
Thanks

Hi all,

I’m inserting some data into my data series and the chart shows it incorrect(see Before.jpg) . After that, when I zoom out my chart by mouse wheel, the chart shows correct (see attachment After.jpg).

Best Regards,
Arthur

I am currently evaluating SciChart for use on a trading desk which trades 30 plus markets. Our existing chart is able to view years of historical data – the data is prepended on demand as users request more history. While we can probably limit the amount of historical data to load at startup we would like to preserve that functionality.

Using the append method seems to work as advertised but how would I prepend data. The Insert with an index seems slow when prepending many bars in the OhlcDataSeries.