Questions

I am trying to build my application with Electron. When the Electron application is run, it will open the UI in the browser (not opened with chromium). I created two Electron applications with same codes but with different versions of SciChart (i.e. version 2 and version 3). When I run with the Electron application with SciChart v2, the SciChart can be loaded properly. When when I run the Electron application with SciChart v3, I got error (please refer to the screenshot) and the SciChart cannot be loaded. I am not sure what’s wrong. Do you have any idea?

I have a chart with a box annotation. When I try to resize the box annotation by dragging the left or right border, I got the “Uncaught TypeError: Cannot read properties of undefined (reading ‘x’)”. It’s not always reproducible and cannot be reproduced by dragging the whole box. Also, it only occurs with SciChart version 3 but not SciChart version 2. Please check the screenshots for more details.

Hello,

we are building an application where Charts are created/placed by the user in a form of editor.

We observed that the creation of the first Chart takes between 1 to 3 seconds (depending on the system) but the creation of subsequent Charts takes virtually no time (as it should be).

We assume that the creation of the first Chart involves some kind of time consuming initialization that is later used in the creation of subsequent Charts.

So we have researched if there is a way to do this initialization at the start of our application, so the user is not inconvenienced by a three second waiting time while placing the first Chart.

We discovered the “LoadLibrariesAndLicenseAsync”-function. However, it looks like it has no measurable effect.

Maybe we are using it wrong?

Here is an example code to illustrate the problem in a condensed manner:

Two charts are created and each time the time it takes to create them is measured.

The first creation takes about 1600 milliseconds, the second one only 2.

How can we make both creations only take a few milliseconds?

Thank you.

        // SciChartSurface.SetRuntimeLicenseKey("our key");

         await SciChart.Charting.Visuals.SciChart2DInitializer.LoadLibrariesAndLicenseAsync(
           "our key",
            null); //...does not seem to work

        Stopwatch sw = new Stopwatch(); 
        sw.Restart();//start stopwatch

        //creating the first Scichart with test data:

        SciChartSurface sciChartSurface = new SciChartSurface();

        XyDataSeries<double, double> xyDataSeries = new XyDataSeries<double, double>();
        xyDataSeries.AcceptsUnsortedData = true;
        FastLineRenderableSeries fastLineRenderableSeries = new FastLineRenderableSeries();
        fastLineRenderableSeries.DataSeries = xyDataSeries;
        sciChartSurface.RenderableSeries.Add(fastLineRenderableSeries);

        NumericAxis m_xAxis = new NumericAxis();
        NumericAxis m_yAxis = new NumericAxis();
        m_yAxis.AutoRange = AutoRange.Always;
        sciChartSurface.XAxis = m_xAxis;
        sciChartSurface.YAxis = m_yAxis;

        using (xyDataSeries.SuspendUpdates())
        {
            for (int i = 0; i < 100; i++)
                xyDataSeries.Append(i, Math.Sin(i));
        }

        Screen.Children.Add(sciChartSurface);//add first Scichart to grid
        sciChartSurface.Margin = new Thickness(0, 0, 500, 0);

        MessageBox.Show("time: "+sw.ElapsedMilliseconds); //////////  1610 Mlliseconds
        sw.Restart();//restart stopwatch

        //creating the second Scichart with test data:

        SciChartSurface sciChartSurface2 = new SciChartSurface();

        XyDataSeries<double, double> xyDataSeries2 = new XyDataSeries<double, double>();
        xyDataSeries2.AcceptsUnsortedData = true;
        FastLineRenderableSeries fastLineRenderableSeries2 = new FastLineRenderableSeries();
        fastLineRenderableSeries2.DataSeries = xyDataSeries2;
        sciChartSurface2.RenderableSeries.Add(fastLineRenderableSeries2);

        NumericAxis m_xAxis2 = new NumericAxis();
        NumericAxis m_yAxis2 = new NumericAxis();
        m_yAxis2.AutoRange = AutoRange.Always;
        sciChartSurface2.XAxis = m_xAxis2;
        sciChartSurface2.YAxis = m_yAxis2;

        using (xyDataSeries2.SuspendUpdates())
        {
            for (int i = 0; i < 100; i++)
                xyDataSeries2.Append(i, Math.Sin(i));
        }

        Screen.Children.Add(sciChartSurface2);//add second Scichart to grid
        sciChartSurface2.Margin = new Thickness(500, 0, 0, 0);

        MessageBox.Show("time: "+sw.ElapsedMilliseconds); //////////////////////////// 2 Mlliseconds

I download the scichart version 3.1.0.5007 and install it on my machine when i try to run the exe it shows that “Sorry your trial of scichart has expired”.what is the solution for that. What changes i need to do on my existing application which uses sci chart.

I get the following output in my console:

Visual Xccelerator Engine v6.2.1.13304

GPU Capability Test ### Is BGRA feature required: TRUE

Examining Graphics Adapter: Intel(R) UHD Graphics 620 VRAM: 128Mb
DeiceId: 22807

Visual Xccelerator Engine Direct3D9 Compatibility
Determines whether the adapter is blacklisted due to its unstable work… FALSE
Trying to create Direct3D9 Device… SUCCESS

Visual Xccelerator Engine Direct3D11 Compatibility
Trying to create Direct3D9Ex Device (WPF Compatibility)… SUCCESS
Trying to create Direct3D11 Device… SUCCESS

Rank: 2100128 Points

Selected Graphics Adapter, where DeviceId is: 22807 Is Direct3D9
Supported: TRUE Is Direct3D11 Supported: TRUE Is Blacklisted:
FALSE

Hey this is SciChart here. Please help! Your GPU is too slow for my
awesome graphics software! I detected you have an Intel(R) UHD
Graphics 620 GPU. Please upgrade it because I’m feeling very
constrained by 128MB of Video RAM. My super-powerful Visual
Xccelerator engine can do so much better with 256MB+ of video memory.
THX! 😀

Is there a way to suppress this so it doesn’t show up? I use trace output to capture diagnostics in my application and this is showing up in the log.

Hello, I’m using the trial version currently and everything is working great.
I was wondering is there is any way to freeze the chart like I’m looking at pictures while the chart appends new data or save somehow the data points until I will finish my zoom(also if I can move while zooming).
I’m new developer and I have some Idea how to do that but I don’t what will be the right way to do so.

Hi,
I’m trying to synchronize the pie chart and the line chart in React. I’ve already done this for two line graphs.

They both use the same data table. And I want to know if it’s possible, if when I zoom in on the line chart, it updates the Pie chart with the new range.

Thanks, (sorry for my english ^^)

hello.
I am trying to draw the cube area when dragged mouse in SciChart3DSurface likes RubberBandXyZoomModifier.
But I couldn’t find a way to get the coordinates of the mouse clicked point.
Is there a way to get the 3d coordinate value of the point clicked with the mouse in the SciChart3DSurface area?

I have a real time updated chart and users can add annotation to the chart. The position of the annotation will be updated with the chart data. I would like to stop updating the annotation position while user dragging the annotation. So I added a flag (e.g. isDragging) to the annotation dragStarted and dragEnded events. The isDragging flag will be set to true in dragStarted and then set to false in dragEnded. I will check this flag before updating the annotation position.

Here’s the problem, the annotation dragStarted event will be triggered when users do panning in the chart. But the dragEnded will not be triggered in this case. It breaks my plan to stop updating the annotation position as the isDragging will be incorrect. Is it a bug that the annotation dragStarted event (but not the dragEnded event) triggered when panning?

How to update the text Annotation in JavaScript. I can add the new Text annotation but I can’t update the old text Annotation. whether we have any option in sci chart for JavaScript.

Hello.
Is there a way to hide points out of the Visual Range in SciChart3DSurface?

Hi,

I’m learning SciChart, and tried following this tutorial https://www.scichart.com/example/wpf-chart/wpf-3d-chart-example-add-objects-to-3d-chart/. I tried adding a mesh I generated in blender, as well as using the knight piece from the same source as the example. It looks to me like the normal vectors on the objects are inverted. This is definitely not a problem with my model, as multiple other .obj viewers don’t have a problem displaying my mesh, and the knight piece isn’t mine anyway. I exported the example into Visual Studio and it worked fine, all the pieces were solid. Does anyone have any idea what I’ve goofed here?

I followed the official example (SciChart_AddObjectsToa3DChart), created a simplest test program, copied the “King_Low.obj” file from the official sample program into my test program, but “King_Low.obj” did not show up, what is the problem?

I am implementing a heatmap chart and would like to allow users to adjust the color mapping of the heatmap by adding sliders to the heatmap legend (Please refer to the attached screenshot). Does SciChart support color slider for HeatmapLegend?

I am trying to add an axis annotation to a heatmap legend. When this annotation is dragged, the color mapping of the heatmap series and the heatmap legend will be changed. How can I modify the colorMap.gradientStops of the heatmap series and the heatmap legend while the chart is running?

Memory leak in Fifo mode with Visual Xccelerator Engine enabled.

Two screenshots with Visual Xccelerator Engine enabled and disabled.
In a real application, the behavior is repeated. GS.Collect does not solve the problem.

It looks like the problem occurs on the integrated video card. AMD. When switching to a discrete video card. Memory is stable.

I’m working with Custom Meshes. I want the user to be able to delete and create an arbitrary number of meshes. It’s fine if there’s a maximum number of meshes that can exist at a time. However, by repeatedly clearing and creating the same mesh, I get this error;

System.InvalidOperationException: ‘The Maximum Mesh ID has been exceeded. Please see http://www.scichart.com/maximum-mesh-id‘

I get the error when I try to add a FreeSurfaceRenderableSeries3D object to the a Scichart3DSurface.RenderableSeries. The link provided by the error got 404’d. I have sixteen SceneObject objects and one TextSceneEntity, borrowed from the example suite. While reproducing the error, I never had more than one mesh. I cleared the RenderableSeries before inserting another mesh.

Is it possible to keep adding meshes as long as I delete them, or does a SciChart3DSurface have a maximum number of meshes that can be added, even with deletion?

We are having the first experiences with SCIchart. Could someone help with this problem we are experiencing?

[ encore ] ERROR Failed to compile with 1 errors14:42:33 [ encore ]
Module build failed: Module not found: [ encore ]
“./node_modules/scichart/_wasm/scichart2d.wasm” contains a reference
to the file “a”. This file can not be found, please check it for typos
or update it if the file got moved. [ encore ] ERROR in
./resources/js/Pages/Home.vue?vue&type=template&id=6a63e488&scoped=true&ts=true
(./node_modules/unplugin/dist/webpack/loaders/transform.js?unpluginName=unplugin-vue-components!./node_modules/vue-loader/dist/templateLoader.js??ruleSet[1].rules[3]!./node_modules/vue-loader/dist/index.js??ruleSet[0].use[0]!./resources/js/Pages/Home.vue?vue&type=template&id=6a63e488&scoped=true&ts=true)
10:27 Module parse failed: Unexpected token (10:27) File was processed
with these loaders: *
./node_modules/unplugin/dist/webpack/loaders/transform.js *
./node_modules/unplugin/dist/webpack/loaders/transform.js *
./node_modules/vue-loader/dist/templateLoader.js *
./node_modules/vue-loader/dist/index.js You may need an additional
loader to handle the result of these loaders. | }, null, -1 /* HOISTED
*/)) |

export function render(_ctx: any,_cache: any,$props: any,$setup: any,$data: any,$options: any) { | return (_openBlock(),
_createElementBlock(“div”, _hoisted_1, [ | _createElementVNode(“h1”, null, _toDisplayString(_ctx.msg), 1 /* TEXT */),

ERROR in ./node_modules/scichart/_wasm/scichart2d.wasm Module not
found: Error: Can’t resolve ‘a’ in
‘C:\Users\clo\fr\Projeto\chart\App\node_modules\scichart_wasm’

ERROR in ./node_modules/scichart/_wasm/scichart3d.wasm Module not
found: Error: Can’t resolve ‘a’ in
‘C:\Users\clo\fr\Projeto\chart\App\node_modules\scichart_wasm’

webpack compiled with 3 errors

Lets imagine that we have zoom feature and we want to format axis depend on user selected zoom. for example if year select yearly the pattern is yyyy MM dd and if selected zoom is day the pattern is something like this HH:mm:ss. how we can achieve to this goal?

Is it possible, in version 2.2.2404, to have RubberBandXyZoomModifier function like what seems to be the default for v3? So when I’m dragging the box to zoom, if I leave the chart area, the box snaps to the edges of the chart, and upon mouse release, it zooms normally to the box.

I can provide an example:

https://8tunzo.csb.app/ — broken (version 2.2.2404)

https://umvryi.csb.app/ — working (version 3.0.301)

Same exact code

import { SciChartSurface } from "scichart/Charting/Visuals/SciChartSurface";
import { NumericAxis } from "scichart/Charting/Visuals/Axis/NumericAxis";
import { XyDataSeries } from "scichart/Charting/Model/XyDataSeries";
import { FastLineRenderableSeries } from "scichart/Charting/Visuals/RenderableSeries/FastLineRenderableSeries";
import { MouseWheelZoomModifier } from "scichart/Charting/ChartModifiers/MouseWheelZoomModifier";
import { RubberBandXyZoomModifier } from "scichart/Charting/ChartModifiers/RubberBandXyZoomModifier";
import { ZoomExtentsModifier } from "scichart/Charting/ChartModifiers/ZoomExtentsModifier";

const dataX = [0, 10, 20, 30, 40, 50];
const dataY = [0, 10, 5, 20, 15, 35];

// eslint-disable-next-line
SciChartSurface.useWasmFromCDN();

async function initSciChart() {
  const { sciChartSurface, wasmContext } = await SciChartSurface.create(
    "scichart-root"
  );

  const xAxis = new NumericAxis(wasmContext);
  const yAxis = new NumericAxis(wasmContext);
  sciChartSurface.xAxes.add(xAxis);
  sciChartSurface.yAxes.add(yAxis);

  const lineData = new XyDataSeries(wasmContext, {
    xValues: dataX,
    yValues: dataY
  });

  sciChartSurface.renderableSeries.add(
    new FastLineRenderableSeries(wasmContext, { dataSeries: lineData })
  );

  sciChartSurface.chartModifiers.add(new MouseWheelZoomModifier({}));
  sciChartSurface.chartModifiers.add(new RubberBandXyZoomModifier({}));
  sciChartSurface.chartModifiers.add(new ZoomExtentsModifier({}));
}

initSciChart();

Hi,
i have some candles and i want to force the chart for removing candles with
open = Double.NaN
high = Double.NaN
low = Double.NaN
close = Double.NaN
openTime – special day (timestamp)

What I see:

we want z axis up but when we draw Y axis come up hot to solve this

        short[] shortArrayz;
        int lengthz;
        short[,] shortArray = new short[100, 15];
        using (BinaryReader b = new BinaryReader(
                    File.Open("F971-181223-10.MNZ", FileMode.Open)))
        {
            // 2.
            // Position and length variables.
            int pos = 0;
            // 2A.
            // Use BaseStream.

            //    pos += sizeof(int);
            //  pos += sizeof(int);
            lengthz = (int)b.BaseStream.Length;
            shortArrayz = new short[lengthz];


            //    Console.WriteLine(length);
            while (pos < lengthz)
            {
                // 3.
                // Read integer.

                /*

                for (int i = 0; i < 100; i++)
                {
                    for (int j = 0; j < 15; j++)
                    {

                        shortArray[i, j] = b.ReadInt16();
                        Console.WriteLine(shortArray[i, j]);
                    }
                }
                */

                shortArrayz[pos] = b.ReadInt16();


                // 4.
                // Advance our position variable.
                pos += sizeof(short);
            }
        }


        //100x15 lik dosya için        
        int xSize = 15;
        int ySize = 100;


        var meshDataSeries = new UniformGridDataSeries3D<double>(xSize, ySize)
        {
            SeriesName = "Uniform Surface Mesh",
        };




        int h = 0;

        for (int x = 0; x <xSize; x++)
            for (int y = 0; y < ySize; y++)
        {             
            {
                double z =(double) shortArrayz[h];
            meshDataSeries[y, x] = z;

                h += sizeof(short);               
            }
        }


        // Assign the DataSeries to the char
        surfaceMeshRenderableSeries.DataSeries =meshDataSeries;

2) In contour graph values is coorect but seems like it is sliced how to solve this?

Codes are attached

Hello SciChart-Team,
I noticed that the columns in Sparse Column3D and in Uniform Column 3D always start at the XZ surface. Is there any option or way to do so, that columns always use the zero value of the Y axis as their starting point. The visible range of the axes should correspond to the minimum and maximum Y values.

The current behavior can be reproduced in the example SciChart_UniformColumn3D:
If the VisibleRange of the Y-axis goes from 0 to 0.5 then the columns with negative values go down (see screenshot 1)
As soon as the VisibleRange of the Y-axis goes from -0.5 to 0.5, the columns look like this (Screenshot2) We need the columns to look like in Screenshot 1, only that the Y-axis is also visible downwards.

Can the starting point of the columns be changed?

Best regards
Silvester

Hi!
Currently, I’m using Axis Layout – vertically stacked axes。When I use vertically stacked axes, click on a certain area, can I get on that axis? It’s from click on a certain area, not the series. I know the series can it.
can you give me some help?

Hi

I am running Ubuntu 22.04.
I have done the following:
1. Downloaded licensing tool AppImage
2. chmod +x SciChart-Licensing-Wizard.AppImage
3. ./SciChart-Licensing-Wizard.AppImage

Response:

./SciChart-Licensing-Wizard.AppImage: 9: Syntax error: newline unexpected

Please advise.

Thanks

I have a live updating chart with multiple traces. After updated SciChart to v3.0.280, I got “Uncaught (in promise) RangeError: Maximum call stack size exceeded” error sometimes when I call XyDataSeries.appendRange(). This error will not be triggered if just initialize the chart and keeps updating the chart data. It seems happening after I modified the visibleRange of x-axis or y-axis. But the error is triggered on the line calling appendRange(). I have no clue for this issue. My codes didn’t change and only updated the SciChart version. Could you find the possible cause of my problem? Please refer to the attached screenshots.

Codes to update the chart data:

    UpdateSuspender.using(sciChartSurfaceRef.current, () => {
        console.time("Time - Update series");
        for (tnum=0; tnum<MAX_TRACE; tnum++) {
            traceObj = tracesInfoObj.current[tnum];
            if (traceSeries.current[tnum] && traceObj.status === "Active") {
                traceSeries.current[tnum]["xyDataSeries"].clear();
                switch (traceObj.type) {
                    case 0:
                        traceSeries.current[tnum]["xyDataSeries"].appendRange(dataX, newSpecData);
                        break;
                    case 1:
                        traceSeries.current[tnum]["xyDataSeries"].appendRange(dataX, newMaxHoldData);
                        break;
                    case 2:
                        traceSeries.current[tnum]["xyDataSeries"].appendRange(dataX, newMinHoldData);
                        break;
                    case 3:
                        traceSeries.current[tnum]["xyDataSeries"].appendRange(dataX, averageData);
                        break;
                }   
            }
        };
        console.timeEnd("Time - Update series");
    });

Hello,

I found a bug where the SCILegendModifier doesn’t display the full series name. If I add 5 spaces to the series name string, I’m able to see the full series name.

Also, when using margins on the legend modifier instance, the legend fills all available space. Manually resizing the window fixes this bug.

See the photos.

Hello,
I just want to override the ChartModifier property in the style

I have tree charts one after the other and only the last chart has a legend. It seems I cannot use a style with the same key multiple times.

<Style x:Key="ChartWithMyModifiers" TargetType="{x:Type s:SciChartSurface}">
    <Setter Property="ChartModifier">
        <Setter.Value>
            <s:ModifierGroup>
                <s:ZoomPanModifier ExecuteOn="MouseRightButton" ClipModeX="None" />
                <s:YAxisDragModifier DragMode="Scale"/>
                <s:XAxisDragModifier DragMode="Scale"/>
                <s:MouseWheelZoomModifier/>
                <s:ZoomExtentsModifier ExecuteOn="MouseDoubleClick" />
                <s:LegendModifier ShowLegend="True"/>
            </s:ModifierGroup>
        </Setter.Value>
    </Setter>
</Style>

The result screen is attached.
Thanks, Gabor

Hi,

I made a custom modifier and tried to capture a keydown event in Custom Modifiers in abstract “Overriding Key Events” described. The problem is that this event is only fired when SciChartSurface is on focus but for standard modifier like MouseWheelModifier it is working properly. Is there any way to capture the event for whole application?

Hello,

One thing I can’t figure out is why I don’t see the axis tooltips when using SCIRolloverModifier or SCICursorModifier? If I use xAxis.axisTitleMargins = NSEdgeInsets(top: 1000, left: 0, bottom: 10, right: 0) I can see tooltips on x axis but only until some point and from there moving the cursor to the right leads to some sort of overlay and tooltip disappears. See the photos.

Is this a bug or I’m doing something wrong?

I am trying to implement the following functionality requested by our users:

Zoom:
– Only zoom the chart when using CTRL + MouseWheel key
– This is similar to how most browsers behave

Pan/Scroll:
– If no CTRL key is pressed, then pan/scroll
– This is similar to how most browsers behave

Given the above requirement, I started by creating custom modifier by extending YAxisDragModifier.

My code almost works:
– When using CTRL + Mouse Left & Drag, it Scales (zooms) — just like the user wants
– But using CTRL + Mouse Wheel does not do the same — it only Scales (Zooms).

I have uploaded the code at codesandbox.io:
https://codesandbox.io/s/amazing-shape-2ispt0?file=/src/customModifiers.ts

Note that I have not tried to implement this in ZoomPanModifier yet, but would be helpful if you could give me some pointers on getting this feature in there too.

I would appreciate any help I can get and thanks a bunch in advance.

Best Regards,
Sachin Patel.

This is my first time in this forum, and I am analyzing SCIChart. I am planning to use it in my software, but there are some questions I haven’t been able to answer yet.
My software is similar to an IDE, where the user can build their custom applications and run on windows environment, but we also provide an option to save all the interface in html and javascript. Since SCIChart provides not only WPF Charts but also javascript Charts, I would like to know the following:

1- Does the javascript charts have the same functionalities as the wpf charts? XY Charts or Pie charts for example, will they have the same functionalities in WPF and Javascript ?

2- Does the appearence of the charts in WPF and Javascript are the same? Do they look exatcly the same?

I believe these are my biggest doubts so far. Thanks in advance !!