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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?

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?

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?

Hello,

I have issues when I want to apply a custom CustomPolygonRenderableSeries.

For implementation it was used sci-chart documentation from

enter link description here
enter link description here

It takes a while to show just 10000 polygons from 40000 points! When I tried to slide or zoom main window it got some freezes for 1-1.5 seconds. The main problem is in redrawing several times(protected override void Draw). There is an example of used code:

public class CustomPolygonRenderableSeries : CustomRenderableSeries
{
    protected override void Draw(IRenderContext2D renderContext, IRenderPassData renderPassData)
    {
        var dataPointSeries = renderPassData.PointSeries as XyzPointSeries;

        if (dataPointSeries == null) return;
        if (dataPointSeries.XValues.All(double.IsNaN)) return;

        var xCalc = renderPassData.XCoordinateCalculator;
        var yCalc = renderPassData.YCoordinateCalculator;

        // try to filter some polygons by visible range
        var xVisibleRange = XAxis.VisibleRange;
        var yVisibleRange = YAxis.VisibleRange;

        var points = new Point[4];
        var step = 4;
        for (var index = 0; index < dataPointSeries.Count; index += step)
        {
            if (!xVisibleRange.IsValueWithinRange(dataPointSeries.XValues[index + 3]) ||
                !yVisibleRange.IsValueWithinRange(dataPointSeries.YValues[index + 3])) continue;

            for (int i = 0; i < step; ++i)
            {
                points[i].X = xCalc.GetCoordinate(dataPointSeries.XValues[index + i]);
                points[i].Y = yCalc.GetCoordinate(dataPointSeries.YValues[index + i]);
            }

            var intColor = (int)dataPointSeries.ZPoints[index];
            var color = System.Drawing.Color.FromArgb(intColor).ToMediaColor();

            var brush = new SolidColorBrush(color);
            using var sBrush = renderContext.CreateBrush(brush, Opacity);
            renderContext.FillPolygon(sBrush, points);
        }
    }
}

public class CustomPolygonRenderableSeriesViewModel : BaseRenderableSeriesViewModel
{
    public override Type ViewType => typeof(CustomPolygonRenderableSeries);
}

Is this a known performance issue? Is there some way to by-pass it?

Thank you.

Sincerely, Roman

When using AutoRange.Once on an axis, I expect the auto ranging to be done exactly once.
If at some point, I change the visible range to match the default one (0 to 10 for numeric axis), the auto range is triggered again.

Happens more if I provide inputs so the user can define a range, and depending on the use case, 0 to 10 is not that uncommon.
Kind of an edge case, but still something that can happen, and is definitely unexpected.

This can be seen happening here https://codepen.io/jrfv/full/xxeqwOd

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?

If there is a ChartModifier on the SciChart Surface, the Focus moves to the chart just by moving the mouse up without clicking the mouse.

The v6.2.0.13254 version does not have this problem, but the v8.0.0.27737 version does.

You can see that the focus is moving just by moving the mouse through the video.

How can i solve it?

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?

We managed to create a functioning chart, but sometimes when we first ran the chart it produced this error, followed by the chart being completely unable to display.

We attached the error message produced in DevTools, the expected outcome and the actual outcome when the error occurred.

Hi there,
Here is my xaml setting :

 <s:SciStockChart.XAxisStyle>
     <Style TargetType="s:CategoryDateTimeAxis">
         <Setter Property="VisibleRange" Value="{Binding ParentViewModel.XRange}" />
         <Setter Property="AutoRange" Value="{Binding ParentViewModel.AutoRangeX}"/>
     </Style>
 </s:SciStockChart.XAxisStyle>

And I also set, XRange = new IndexRange(0, 9), AutoRangeX = AutoRange.Never, but the chart show like image, always has gap there.

What should I do?

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?

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，
I want to get the currently selected series like isCheckedChangedCallback in js. But there is no similar method in the documentation, how should I implement this function.

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?

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/support/solutions/articles/101000515345-scichart-js-domain-licensing-faq)

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?

There seems to be no documentation on how to configure scichart when using app router with nextJS, and I am running into an error.

I have followed a combination of this tutorial, and additional setup for nextJS found here, specifically the next.config.js file, copy-files-from-to.json, and additions to package.json. But I continue to get the error: ‘Module has already been declared’. (first/second pics in PDF)

I have attached a photos inside the pdf, including my project structure, and a zip with the files to duplicate.

Steps to replicate:
1) extract files and add root package.json to a directory of your choice
2) from within this directory, use ‘yarn create next-app scichart-prototype’ (use set-up options from 4th image in PDF)
3) Replace root layout.tsx and page.tsx with files in zip, add SciChartDemo directory and add page.tsx from that (also in zip)
4) replace the next.config.mjs file with the next.config.mjs file from the zip
5) add the copy-files-from-to.json from the zip
6) replace the package.json file in scichart-prototype directory with file from the zip.
7) run ‘yarn install’ to add packages
8) run ‘turbo dev’
9) after visiting localhost:3000/ click the Sci Chart Demo link to see error.

Thanks for taking a look.

question posted to nextjs forum

Previously I used AnnotationCreationModifier and my custom annotations were added by one left button mouse click on the chart surface (the annotation was added to the collection and the event handler “AnnotationCreated” fired). Now I’m trying to switch to using the mvvm pattern and I have problems adding my custom annotations using AnnotationCreationModifierMVVM.

Now it works like this:
1) I click (mouse left button) on the chart surface to add an annotation and it is added to the collection and displayed.
2) I click on the chart surface again, and only after that the event handler “AnnotationCreated” is called.

If I carry out some external manipulations with the added annotation between first and second click (for example, moving to the given coordinates by the button click), annotation moved, but when I hover the mouse over the chart surface, it returns to it’s original position. And this behavior will be until I click again on the chart surface so that the event handler “AnnotationCreated” is called.

The built-in annotations work fine though (for examle, VerticalLineAnnotationViewModel or HorizontalLineAnnotationViewModel are successfully added to the collection and call the event handler “AnnotationCreated” by one click on chart surface).

Is it possible to somehow fix this behavior of the custom annotation so that it is added to the collection and triggers an event “AnnotationCreated” for one click on the chart surface, as was the case with AnnotationCreationModifier? I am attaching an example code:

MainWindow.xaml

<Window x:Class="WpfAppMvvm.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:s="http://schemas.abtsoftware.co.uk/scichart"
    xmlns:ext="http://schemas.abtsoftware.co.uk/scichart/exampleExternals"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
    mc:Ignorable="d"
    Title="MainWindow" Height="450" Width="800">
<Grid>
    <s:SciChartSurface Annotations="{s:AnnotationsBinding Annotations}">
        <s:SciChartSurface.XAxis>
            <s:NumericAxis AxisTitle="X"/>
        </s:SciChartSurface.XAxis>
        <s:SciChartSurface.YAxis>
            <s:NumericAxis AxisAlignment="Left" AxisTitle="Y"/>
        </s:SciChartSurface.YAxis>
        <s:SciChartSurface.ChartModifier>
            <s:ModifierGroup>
                <s:AnnotationCreationModifierMVVM IsEnabled="True" AnnotationViewModelsCollection="{Binding Annotations}" AnnotationViewModelType="{Binding AnnotationType}">
                    <i:Interaction.Behaviors>
                        <ext:EventToCommandBehavior Command="{Binding AnnotationCreatedCommand}" Event="AnnotationCreated" PassArguments="True"/>
                    </i:Interaction.Behaviors>
                </s:AnnotationCreationModifierMVVM>
            </s:ModifierGroup>
        </s:SciChartSurface.ChartModifier>
    </s:SciChartSurface>
</Grid>

MainWindow.xaml.cs

using System.Windows;
namespace WpfAppMvvm
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            DataContext = new MainWindowViewModel();
        }
    }
}

MainWindowViewModel.cs

using SciChart.Charting.ChartModifiers;
using SciChart.Charting.Common.Helpers;
using SciChart.Charting.Model.ChartSeries;
using SciChart.Examples.ExternalDependencies.Common;
using System;
using System.Collections.ObjectModel;
using System.Windows;
namespace WpfAppMvvm
{
    internal class MainWindowViewModel:BaseViewModel
    {
        public ObservableCollection<IAnnotationViewModel> Annotations { get; private set; }
        public Type AnnotationType { get; private set; }
        public ActionCommand<AnnotationCreationMVVMArgs> AnnotationCreatedCommand { get; private set; }

        public MainWindowViewModel()
        {
            Annotations = new ObservableCollection<IAnnotationViewModel>();
            AnnotationType = typeof(MyCustomAnnotationViewModel);
            AnnotationCreatedCommand = new ActionCommand<AnnotationCreationMVVMArgs>(ExecCmd, e => true);
        }
        private void ExecCmd(AnnotationCreationMVVMArgs e)
        {
            MessageBox.Show("OnAnnotationCreated executed");
        }
    }
}

MyCustomAnnotation.xaml

<s:CustomAnnotationForMvvm x:Class="WpfAppMvvm.MyCustomAnnotation"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
         mc:Ignorable="d" 
         xmlns:s="http://schemas.abtsoftware.co.uk/scichart"
         d:DesignHeight="450" d:DesignWidth="800">
<Grid>
    <Ellipse
        Width="20"
        Height="20"
        Fill="Transparent"
        Stroke="Red"
        StrokeThickness="3"
    />
</Grid>

MyCustomAnnotation.xaml.cs

using SciChart.Charting.Visuals.Annotations;

namespace WpfAppMvvm
{
    public partial class MyCustomAnnotation : CustomAnnotationForMvvm
    {
        public MyCustomAnnotation()
        {
            InitializeComponent();
        }
    }
}

MyCustomAnnotationViewModel.cs

using SciChart.Charting.Model.ChartSeries;
using System;

namespace WpfAppMvvm
{
    public class MyCustomAnnotationViewModel:CustomAnnotationViewModel
    {
    public override Type ViewType => typeof(MyCustomAnnotation);
    }
}

Hi,

I feel this should be obvious but I cannot find the answer in the docs. I have multiple Y axis and I want all of them to start at 0 and autoRange only the max value. Also, the zooming should not be affected, it should have normal behavior. I just want the axis to go from 0 to auto max value when we call ZoomExtents(). The default behavior of the ZoomExtents() is auto min value to auto max value.

Is there any way we can achieve this with SciChart?

Thank you,
Alex

I will continue to this question here, but with more details. So I need to be able to drag axis annotations separately. Is there any possible way to achieve this in iOS? Basically I subclassed SCIAxisMarkerAnnotation and implemented my own -onPanGesture:At: but it does not separate instances of the class when I try to drag one of the annoation. All moves to same place. How can I detect which annotation is being dragged?

CDAxisMarkerAnnotation.h

#import <SciChart/SciChart.h>
@class CDAxisMarkerAnnotation;

@protocol CDAxisMarkerAnnotationDelegate <NSObject>

- (void)axisMarkerAnnotation:(CDAxisMarkerAnnotation *)axisMarkerAnnotation
           didPanToAxisValue:(double)axisValue;

@end

@interface CDAxisMarkerAnnotation : SCIAxisMarkerAnnotation

@property (weak, nonatomic) id<CDAxisMarkerAnnotationDelegate> delegate;

@end

CDAxisMarkerAnnotation.m

#import "CDAxisMarkerAnnotation.h"

@implementation CDAxisMarkerAnnotation

- (BOOL)onPanGesture:(UIPanGestureRecognizer *)gesture At:(UIView *)view
{
    if (![view isKindOfClass:[SCIChartSurfaceView class]]) {
        return [super onPanGesture:gesture At:view];
    }

    switch (gesture.state) {
        case UIGestureRecognizerStateBegan:
        case UIGestureRecognizerStateChanged:
        case UIGestureRecognizerStateEnded: {
            CGPoint location = [gesture locationInView:view];
            id<SCIRenderSurface> renderSurface = [self.parentSurface renderSurface];
            CGPoint pointInChart = [renderSurface pointInChartFrame:location];
            id<SCICoordinateCalculator> yCalculator = [self.yAxis getCurrentCoordinateCalculator];
            double valueForYAxis = [yCalculator getDataValueFrom:pointInChart.y];
            [self.delegate axisMarkerAnnotation:self didPanToAxisValue:valueForYAxis];
            break;
        }
        default: {
            break;
        }
    }
    return YES;
}

@end

Thanks,
Irmak

I’m developing chart with sci chart. And I current make candle stick chart.

I want to get correct center coordinate from user’s touch location.

so, I tried this way.

1. get touch location
2. get axis data from touch location like this
3. get coordinate from data

let location = gestureRecognizer.location(in: self) // type is CGPoint
let selectedDate = xAxis.getDataValue(Float(location.x)) // xAxis's type is ISCIAxis
let selectedPoint = xAxis.getCoordinate(selectedData)

If I do that, no matter how far to the right you touch from the center line of the candlestick, you will get the position of the left candlestick.

If the candlestick center line is not crossed, the left data is unconditionally obtained.

I want to get the data closest to the touch, how do I do that?