Create a JavaScript Polar Band Chart using SciChart.js
drawExample.ts
index.html
vanilla.ts
theme.ts
1import {
2 PolarMouseWheelZoomModifier,
3 PolarZoomExtentsModifier,
4 PolarPanModifier,
5 PolarNumericAxis,
6 SciChartPolarSurface,
7 EPolarAxisMode,
8 NumberRange,
9 EAxisAlignment,
10 EPolarLabelMode,
11 PolarBandRenderableSeries,
12 XyyDataSeries,
13 PolarLegendModifier,
14 SweepAnimation,
15} from "scichart";
16import { appTheme } from "../../../theme";
17
18export const drawExample = async (rootElement: string | HTMLDivElement) => {
19 const { sciChartSurface, wasmContext } = await SciChartPolarSurface.create(rootElement, {
20 theme: appTheme.SciChartJsTheme,
21 });
22
23 const radialYAxis = new PolarNumericAxis(wasmContext, {
24 polarAxisMode: EPolarAxisMode.Radial,
25 axisAlignment: EAxisAlignment.Right,
26 visibleRange: new NumberRange(0, 6),
27 drawMinorTickLines: false,
28 drawMajorTickLines: false,
29 useNativeText: true,
30 drawMinorGridLines: false,
31 startAngle: Math.PI / 2,
32 zoomExtentsToInitialRange: true,
33 labelPrecision: 0,
34 innerRadius: 0.1, // donut hole
35 });
36 sciChartSurface.yAxes.add(radialYAxis);
37
38 const polarXAxis = new PolarNumericAxis(wasmContext, {
39 polarAxisMode: EPolarAxisMode.Angular,
40 axisAlignment: EAxisAlignment.Top,
41
42 polarLabelMode: EPolarLabelMode.Parallel,
43 visibleRange: new NumberRange(0, 12),
44
45 autoTicks: false,
46 majorDelta: 1,
47
48 useNativeText: true,
49 flippedCoordinates: true, // go clockwise
50 startAngle: Math.PI / 2, // start at 12 o'clock
51 zoomExtentsToInitialRange: true,
52 labelPrecision: 0,
53 });
54 sciChartSurface.xAxes.add(polarXAxis);
55
56 // regular (non-interpolated) band
57 const polarBand1 = new PolarBandRenderableSeries(wasmContext, {
58 dataSeries: new XyyDataSeries(wasmContext, {
59 xValues: [0, 1, 2, 3, 4, 5],
60 yValues: [1, 2, 3, 4, 5, 6],
61 y1Values: [6, 5, 1, 5, 4, 2],
62 dataSeriesName: "Regular Band",
63 }),
64 stroke: appTheme.VividOrange,
65 strokeY1: appTheme.VividSkyBlue,
66 fill: appTheme.VividOrange + "88",
67 fillY1: appTheme.VividSkyBlue + "88",
68 strokeThickness: 3,
69 interpolateLine: false, // not interpolated
70 animation: new SweepAnimation({ duration: 400, delay: 400 }),
71 });
72 sciChartSurface.renderableSeries.add(polarBand1);
73
74 // interpolated band
75 const polarBand2 = new PolarBandRenderableSeries(wasmContext, {
76 dataSeries: new XyyDataSeries(wasmContext, {
77 xValues: [6, 7, 8, 9, 10, 11],
78 yValues: [1, 2, 3, 4, 5, 6],
79 y1Values: [6, 5, 1, 5, 4, 2],
80 dataSeriesName: "Interpolated Band",
81 }),
82 stroke: appTheme.VividPink,
83 strokeY1: appTheme.VividGreen,
84 fill: appTheme.VividPink + "88",
85 fillY1: appTheme.VividGreen + "88",
86 strokeThickness: 3,
87 interpolateLine: true,
88 animation: new SweepAnimation({ duration: 400 }),
89 });
90 sciChartSurface.renderableSeries.add(polarBand2);
91
92 sciChartSurface.chartModifiers.add(
93 new PolarPanModifier(),
94 new PolarZoomExtentsModifier(),
95 new PolarMouseWheelZoomModifier(),
96 new PolarLegendModifier({
97 showCheckboxes: true,
98 })
99 );
100
101 return { sciChartSurface, wasmContext };
102};This example demonstrates how to create a Polar Band Chart using SciChart.js in vanilla JavaScript. The chart visualizes data in polar coordinates with two band series (regular and interpolated) between radial and angular axes.
The chart is initialized asynchronously using SciChartPolarSurface.create(). It configures a radial PolarNumericAxis with EPolarAxisMode.Radial and an angular axis with EPolarAxisMode.Angular. Two PolarBandRenderableSeries instances are added, one with interpolateLine=false and another with interpolateLine=true, both using XyyDataSeries for storing values. The implementation includes interactive modifiers like PolarZoomExtentsModifier and PolarPanModifier for user interaction.
The example showcases polar chart capabilities including band series with customizable fills (fill and fillY1) and strokes (stroke and strokeY1). It demonstrates the difference between interpolated and non-interpolated band rendering. The chart also features a PolarLegendModifier with checkboxes for series visibility toggling.
The implementation follows memory management best practices by providing a cleanup function that calls sciChartSurface.delete(). For more details on polar charts, see the Polar Chart documentation.

Explore the React Polar Line Chart example to create data labels, line interpolation, gradient palette stroke and startup animations. Try the SciChart Demo.

Try the JavaScript Polar Spline Line Chart example to see SciChart's GPU-accelerated rendering in action. Choose a cubic spline or polar interpolation. View demo.

Create a JavaScript Multi-Cycle Polar Chart to plot data over multiple cycles and visualize patterns over time. This example shows surface temperature by month.

Try the JavaScript Polar Column or Bar Chart example to render bars in a polar layout with gradient fills and animations. Use SciChart for seamless integrations.

Create a JavaScript Polar Colum Category chart visualizing UK consumer price changes. Try the demo with a custom positive/negative threshold fill and stroke.

Create a JavaScript Polar Range Column Chart with SciChart. This example displays monthly minimum and maximum temperatures within a Polar layout. Try the demo.

View the JavaScript Windrose Chart example to display directional data with stacked columns in a polar layout. Try the polar chart demo with customizable labels

See the JavaScript Sunburst Chart example with multiple levels, smooth animation transitions and dynamically updating segment colors. Try the SciChart demo.

View the JavaScript Radial Column Chart example to see the difference that SciChart has to offer. Switch radial and angular axes and add interactive modifiers.

This JavaScript Stacked Radial Bar Chart example shows Olympic medal data by country. Try the demo for yourself with async initialization and theme application.

The JavaScript Polar Area Chart example, also known as Nightingale Rose Chart, renders an area series with polar coordinates with interactive legend controls.

Try the JavaScript Stacked Radial Mountain Chart example to show multiple datasets on a polar layout with a stacked mountain series and animated transitions.

Build a JavaScript Polar Scatter Chart with this example to render multiple scatter series on radial and angular axes. Try the flexible SciChart demo today.

View the JavaScript Polar Radar Chart example. Also known as the Spider Radar Chart, view the scalability and stability that SciChart has to offer. Try demo.

Create JavaScript Gauge Charts, including a JavaScript Circular Gauge Dashboard, with user-friendly initialization and responsive design. Give SciChart a go.

View JavaScript Arc Gauge Charts alongside FIFO Scrolling Charts, all on the same dashboard with real-time, high-performance data rendering. Try the demo.

Try SciChart's JavaScript Polar Heatmap example to combine a polar heatmap with a legend component. Supports responsive design and chart and legend separation.

No description available for this example yet

Create a JavaScript Polar Partial Arc that bends from a full Polar Circle to a Cartesian-like arc. Try the demo to display an arc segment with Polar coordinates.

Create a JavaScript Polar Axis Label with SciChart. This demo shows the various label modes for Polar Axes – all optimised for pan, zoom, and mouse wheel.

View the React Polar Map Example using the SciChartReact component. Display geographic data as color-coded triangles on a polar coordinate system. Try demo.