Draw JavaScript Chart Behind Axis

1import {
2    ECoordinateMode,
3    EHorizontalAnchorPoint,
4    ELineDrawMode,
5    FastLineRenderableSeries,
6    MouseWheelZoomModifier,
7    NumberRange,
8    NumericAxis,
9    PinchZoomModifier,
10    SciChartSurface,
11    TextAnnotation,
12    XyDataSeries,
13    ZoomPanModifier,
14    Thickness,
15} from "scichart";
16import { appTheme } from "../../../theme";
17
18export const drawExample = async (rootElement: string | HTMLDivElement) => {
19    const { sciChartSurface, wasmContext } = await SciChartSurface.create(rootElement, {
20        theme: appTheme.SciChartJsTheme,
21        title: "SciChartSurface with Series Drawn Behind Axis",
22        titleStyle: {
23            fontSize: 20,
24            fontWeight: "Bold",
25            placeWithinChart: true,
26            padding: Thickness.fromString("14 2 10 0"),
27            color: appTheme.ForegroundColor + "C4",
28        },
29    });
30
31    // When true, Series are drawn behind axis (Axis inside chart)
32    sciChartSurface.drawSeriesBehindAxis = true;
33
34    sciChartSurface.xAxes.add(
35        new NumericAxis(wasmContext, {
36            growBy: new NumberRange(0.1, 0.1),
37            visibleRange: new NumberRange(28.0, 42.6),
38            axisTitle: "X Axis",
39            labelStyle: {
40                fontSize: 20,
41            },
42            axisBorder: {
43                borderTop: 0,
44                color: appTheme.PaleSkyBlue + "33",
45            },
46        })
47    );
48    sciChartSurface.yAxes.add(
49        new NumericAxis(wasmContext, {
50            growBy: new NumberRange(0.1, 0.1),
51            visibleRange: new NumberRange(-40.0, 140.0),
52            axisTitle: "Y Axis",
53            labelStyle: {
54                fontSize: 20,
55            },
56            axisBorder: {
57                borderLeft: 0,
58                color: appTheme.PaleSkyBlue + "33",
59            },
60        })
61    );
62
63    const xValues = [];
64    const yValues = [];
65    const y1Values = [];
66
67    for (let i = 0; i < 100; i += 0.1) {
68        xValues.push(i);
69        yValues.push(Math.tan(i));
70        y1Values.push(Math.cos(i * 100) * 5);
71    }
72
73    sciChartSurface.renderableSeries.add(
74        new FastLineRenderableSeries(wasmContext, {
75            drawNaNAs: ELineDrawMode.PolyLine,
76            strokeThickness: 5,
77            stroke: "rgba(255, 134, 72, .47)",
78            dataSeries: new XyDataSeries(wasmContext, { xValues, yValues }),
79        })
80    );
81
82    sciChartSurface.renderableSeries.add(
83        new FastLineRenderableSeries(wasmContext, {
84            drawNaNAs: ELineDrawMode.PolyLine,
85            strokeThickness: 3,
86            stroke: "rgba(50, 134, 72, .47)",
87            dataSeries: new XyDataSeries(wasmContext, { xValues, yValues: y1Values }),
88        })
89    );
90
91    sciChartSurface.chartModifiers.add(new ZoomPanModifier({ enableZoom: true }), new MouseWheelZoomModifier());
92
93    return { sciChartSurface, wasmContext };
94};
95