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Features
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Tree List
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React Charts - Wind Rose
This demo illustrates a wind rose using the PolarChart component. To specify chart arguments that correspond to cardinal points, the discreteAxisDivisionMode and firstPointOnStartAngle properties of the argumentAxis object are set. In addition, the chart’s onLegendClick event is handled for you to be able to exclude/include certain series to the PolarChart at runtime.
To give you the ability to edit code on the fly, the demo uses SystemJS. For this reason, launching the demo takes some time. We strongly recommend that you do not use this approach in real projects.
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Backend API
x
import React, { useCallback, useState } from 'react';
import SelectBox from 'devextreme-react/select-box';
import {
PolarChart,
CommonSeriesSettings,
Series,
ArgumentAxis,
ValueAxis,
Margin,
Export,
} from 'devextreme-react/polar-chart';
import { windSources, windRoseData, periodLabel } from './data.ts';
function onLegendClick({ target: series }) {
if (series.isVisible()) {
series.hide();
} else {
series.show();
}
}
function App() {
const [periodValues, setPeriodValues] = useState(windRoseData[0].values);
const handleChange = useCallback(({ value }) => {
setPeriodValues(value);
}, [setPeriodValues]);
return (
<div id="chart-demo">
<PolarChart
id="radarChart"
palette="Soft"
dataSource={periodValues}
onLegendClick={onLegendClick}
title="Wind Rose, Philadelphia PA"
>
<CommonSeriesSettings type="stackedbar" />
{windSources.map((item) => (
<Series key={item.value} valueField={item.value} name={item.name} />
))}
<Margin bottom={50} left={100} />
<ArgumentAxis discreteAxisDivisionMode="crossLabels" firstPointOnStartAngle={true} />
<ValueAxis valueMarginsEnabled={false} />
<Export enabled={true} />
</PolarChart>
<div className="center">
<SelectBox
width="300"
dataSource={windRoseData}
inputAttr={periodLabel}
displayExpr="period"
valueExpr="values"
value={periodValues}
onValueChanged={handleChange}
/>
</div>
</div>
);
}
export default App;
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