Tag: typescript

I am trying to add sci chart in nextjs app and its failing with a message “Aborted(both async and sync fetching of the wasm failed)”.
I have updated next config – webpack with :
const destWasmFolder = “static/chunks/pages”;
config.plugins.push(new CopyPlugin({
patterns: [
{ from: “node_modules/scichart/_wasm/scichart2d.wasm”, to: destWasmFolder },
]
And installed the package copy-files-from-to and created a file “copy-files-from-to.json in the root directory with content:
{
“copyFilesSettings”: {
“whenFileExists”: “overwrite”
},
“copyFiles”: [
{
“from”: “./node_modules/scichart/_wasm/scichart2d.data”,
“to”: “./public/scichart2d.data”
}
]
}

And updated package.json script with “”dev”: “cross-env NODE_OPTIONS=\”-r next-logger\” copy-files-from-to && next dev”

Hello,

I am trying to add multiple Y axis to this example:
https://github.com/ABTSoftware/SciChart.JS.Examples/blob/master/Examples/src/components/Examples/Charts2D/ModifyAxisBehavior/VerticallyStackedAxes/drawExample.ts

What I want to achieve is to add an additional Y axis which would display the index of the loop. I have tried to make the first yAxis isVisible to false and add the additional one but it seems that it creates a blank chart (extra blue lines in the image attachment) with the index label + the number range. At the end vertically stacked axes are doubled instead of showing just the index.
I am attaching the images and the running example. Maybe there is an easier way to show the index of the loop of the particular graph while not displaying the number range?

Any help would be kindly appreciated.

Hello,

I am having a problem where I want to display the Rollover Modifier only when I click on the selected graph.
For example:
https://demo.scichart.com/javascript-chart-rollovermodifier-tooltips
If I select the Second Lines Series, I want to see the rollover only for that particular graph and not the first one and the third one.

I have tried using charts id’s as a reference to show only one tooltip but it just enables it for all the graphs.

Any help would be kindly appreciated.

I want to build a column chart but I got the following error:

ERROR TypeError: Cannot read property ‘append’ of undefined

The error happened in line #42.

My code:

export class OutputAmplitudeComponent implements OnInit, OnDestroy {

constructor(@Inject(SETTING_SERVICE) private settingService: SettingService, private cdr: ChangeDetectorRef) {}

ngOnInit() {        
                this.settingService.registerSetting(HarmonicAmpSetting).pipe(takeUntil(this.ngUnsubHarmonicData)).subscribe(setting => {
                    const OutputAmplitudeData = setting.value;

                    for (let x = 1; x < this.numberOfOutput; x++) {
                        if (this.OutputMode === 'Voltage') {
                            if (phaseNum === 1) {
                                this.ampSource.data[x-1].voltage1 = OutputAmplitudeData[x];
                            } else if (phaseNum === 2) {
                                this.ampSource.data[x-1].voltage2 = OutputAmplitudeData[x];
                            } else if (phaseNum === 3) {
                                this.ampSource.data[x-1].voltage3 = OutputAmplitudeData[x]; 
                            }
                        } else if (this.OutputMode === 'Current') {
                            if (phaseNum === 1) {
                                this.ampSource.data[x-1].current1 = OutputAmplitudeData[x];
                            } else if (phaseNum === 2) {
                                this.ampSource.data[x-1].current2 = OutputAmplitudeData[x];
                            } else if (phaseNum === 3) {
                                this.ampSource.data[x-1].current3 = OutputAmplitudeData[x];
                            }
                        }

                    }   
                    this.updateData();
                });
                this.sciChartInit();
            }   

updateData(){
    var phaseNum1 = [];
    var xData = [];
    for (let x = 1; x < this.numberOfOutput; x++) {
        if (this.ampSource.data != null && this.ampSource.data[x-1] != null) {
            phaseNum1[x - 1] = parseFloat(this.ampSource.data[x - 1].voltage1);
            xData[x - 1] = x;
            if (!isNaN(phaseNum1[x - 1])) {
                this.dataSeries1.append(x,x);
            } else {
                console.log("No num");
            }
        }
    }
}       

async sciChartInit() {

    const { wasmContext, sciChartSurface } = await SciChartSurface.create("chart");

    var phaseNum1 = [];
    var xData = [];
    this.dataSeries1 = new XyDataSeries(wasmContext);
    for (let x = 1; x < this.numberOfOutput; x++) {
        this.dataSeries1.append(x, x);
    }

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

    const rendSeries1 = new StackedColumnRenderableSeries(wasmContext);
    rendSeries1.fill = "#dc443f";
    rendSeries1.stroke = "green";
    rendSeries1.strokeThickness = 1;
    rendSeries1.dataSeries = this.dataSeries1;
    rendSeries1.stackedGroupId = "one";

    const verticallyStackedColumnCollection = new StackedColumnCollection(wasmContext);
    verticallyStackedColumnCollection.dataPointWidth = 0.5;
    verticallyStackedColumnCollection.add(rendSeries1);
    verticallyStackedColumnCollection.animation = new ScaleAnimation({ duration: 1000, fadeEffect: true });

    sciChartSurface.renderableSeries.add(verticallyStackedColumnCollection);
    sciChartSurface.chartModifiers.add(new ZoomExtentsModifier(), new ZoomPanModifier(), new MouseWheelZoomModifier());
    sciChartSurface.zoomExtents();

    sciChartSurface.chartModifiers.add(
        new LegendModifier({
            placement: ELegendPlacement.TopRight,
            orientation: ELegendOrientation.Horizontal,
            showLegend: true,
            showCheckboxes: true,
            showSeriesMarkers: true
        })
    );
    return { wasmContext, sciChartSurface };
}}

I don’t understand what is undefined and why.

Thank you.

I want to build a Stacked Column Side by Side Chart by referring to the reference here.

However, the program could not enter line #41. It just stuck there and the column chart could not be shown.

My code:

export class OutputAmplitudeComponent implements OnInit, OnDestroy {

constructor(@Inject(SETTING_SERVICE) private settingService: SettingService, private cdr: ChangeDetectorRef) {}

ngOnInit() {        
                this.settingService.registerSetting(HarmonicAmpSetting).pipe(takeUntil(this.ngUnsubHarmonicData)).subscribe(setting => {
                    const OutputAmplitudeData = setting.value;

                    for (let x = 1; x < this.numberOfOutput; x++) {
                        if (this.OutputMode === 'Voltage') {
                            if (phaseNum === 1) {
                                this.ampSource.data[x-1].voltage1 = OutputAmplitudeData[x];
                            } else if (phaseNum === 2) {
                                this.ampSource.data[x-1].voltage2 = OutputAmplitudeData[x];
                            } else if (phaseNum === 3) {
                                this.ampSource.data[x-1].voltage3 = OutputAmplitudeData[x]; 
                            }
                        } else if (this.OutputMode === 'Current') {
                            if (phaseNum === 1) {
                                this.ampSource.data[x-1].current1 = OutputAmplitudeData[x];
                            } else if (phaseNum === 2) {
                                this.ampSource.data[x-1].current2 = OutputAmplitudeData[x];
                            } else if (phaseNum === 3) {
                                this.ampSource.data[x-1].current3 = OutputAmplitudeData[x];
                            }
                        }
                        this.sciChartInit(x);
                    }   
                });
            }   


async sciChartInit(x:number) {

    var phase1 = parseFloat(this.ampSource.data[x-1].voltage1);
    var phase2 = parseFloat(this.ampSource.data[x-1].voltage2);
    var phase3 = parseFloat(this.ampSource.data[x-1].voltage3);

    //stuck here

    const { wasmContext, sciChartSurface } = await SciChartSurface.create("chart");

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

    const dataSeries1 = new XyDataSeries(wasmContext, { xValues:[x], yValues:[phase1], dataSeriesName: "Phase 1" });
    const dataSeries2 = new XyDataSeries(wasmContext, { xValues:[x], yValues:[phase2], dataSeriesName: "Phase 2" });
    const dataSeries3 = new XyDataSeries(wasmContext, { xValues:[x], yValues:[phase3], dataSeriesName: "Phase 3" });

    const rendSeries1 = new StackedColumnRenderableSeries(wasmContext);
    rendSeries1.fill = "#dc443f";
    rendSeries1.stroke = "black";
    rendSeries1.strokeThickness = 1;
    rendSeries1.dataSeries = dataSeries1;
    rendSeries1.rolloverModifierProps.markerColor = "#b83735";
    rendSeries1.rolloverModifierProps.tooltipColor = "#dc443f";
    rendSeries1.rolloverModifierProps.tooltipTextColor = "#fff";
    rendSeries1.stackedGroupId = "one";

    const rendSeries2 = new StackedColumnRenderableSeries(wasmContext);
    rendSeries2.fill = "#aad34f";
    rendSeries2.stroke = "black";
    rendSeries2.strokeThickness = 1;
    rendSeries2.dataSeries = dataSeries2;
    rendSeries2.rolloverModifierProps.markerColor = "#87a73e";
    rendSeries2.rolloverModifierProps.tooltipColor = "#aad34f";
    rendSeries2.rolloverModifierProps.tooltipTextColor = "#000";
    rendSeries2.stackedGroupId = "two";

    const rendSeries3 = new StackedColumnRenderableSeries(wasmContext);
    rendSeries3.fill = "#8562b4";
    rendSeries3.stroke = "black";
    rendSeries3.strokeThickness = 1;
    rendSeries3.dataSeries = dataSeries3;
    rendSeries3.rolloverModifierProps.markerColor = "#715195";
    rendSeries3.rolloverModifierProps.tooltipColor = "#8562b4";
    rendSeries3.rolloverModifierProps.tooltipTextColor = "#fff";
    rendSeries3.stackedGroupId = "three";

    const verticallyStackedColumnCollection = new StackedColumnCollection(wasmContext);
    verticallyStackedColumnCollection.dataPointWidth = 0.5;
    verticallyStackedColumnCollection.add(rendSeries1, rendSeries2, rendSeries3);
    verticallyStackedColumnCollection.animation = new ScaleAnimation({ duration: 1000, fadeEffect: true });

    sciChartSurface.renderableSeries.add(verticallyStackedColumnCollection);

    sciChartSurface.chartModifiers.add(new ZoomExtentsModifier(), new ZoomPanModifier(), new MouseWheelZoomModifier());

    sciChartSurface.zoomExtents();

    sciChartSurface.chartModifiers.add(new RolloverModifier({ rolloverLineStroke: "#228B22" }));
    sciChartSurface.chartModifiers.add(
        new LegendModifier({
            placement: ELegendPlacement.TopRight,
            orientation: ELegendOrientation.Horizontal,
            showLegend: true,
            showCheckboxes: true,
            showSeriesMarkers: true
        })
    );
    return { wasmContext, sciChartSurface };
} }

.
.
The data needed in the chart is identified and no error is shown.
Any idea on the solution?

Thank you.

The value of SciChart in Silverlight is the browser hosting capability. With Silveright on its way out, there appears to be no replacement for SciChart in a browser. However, there is a very good public domain project called Fayde that has re-implemented the Mono Moonlight code as Typescript. Fayde lets you port C#/XAML to Javascript surprisingly easily.

Have you looked at Fayde, and do you foresee a (possibly stripped-down) SciChart version for Fayde?

Fayde: https://wsick.github.io/Fayde/