Scale Breaks

import React from 'react'; import Chart, { Legend, Series, Tooltip, ValueAxis } from 'devextreme-react/chart'; import SelectBox from 'devextreme-react/select-box'; import CheckBox from 'devextreme-react/check-box'; import { dataSource } from './data.js'; const lineStyles = ['waved', 'straight']; const breaksCount = [1, 2, 3, 4]; class App extends React.Component { constructor(props) { super(props); this.state = { autoBreaksEnabledValue: true, breaksCountValue: 3, lineStyleValue: lineStyles[0] }; this.changeBreaksCount = (e) => { this.setState({ breaksCountValue: e.value }); }; this.changeStyle = (e) => { this.setState({ lineStyleValue: e.value }); }; this.changeBreaksEnabledState = (e) => { this.setState({ autoBreaksEnabledValue: e.value }); }; } render() { return ( <div> <Chart id="chart" title={'Relative Masses of the Heaviest\n Solar System Objects'} dataSource={dataSource}> <Series valueField="mass" argumentField="name" type="bar" /> <ValueAxis visible={true} autoBreaksEnabled={this.state.autoBreaksEnabledValue} maxAutoBreakCount={this.state.breaksCountValue} breakStyle={{ line: this.state.lineStyleValue }} /> <Legend visible={false} /> <Tooltip enabled={true} /> </Chart> <div className="options"> <div className="caption">Options</div> <div className="option"> <CheckBox className="checkbox" text="Enable Breaks" onValueChanged={this.changeBreaksEnabledState} value={this.state.autoBreaksEnabledValue}> </CheckBox> </div> &nbsp; <div className="option center"> <span>Max Count </span> <SelectBox items={breaksCount} value={this.state.breaksCountValue} onValueChanged={this.changeBreaksCount} width={60}> </SelectBox> </div> &nbsp; <div className="option right"> <span>Style </span> <SelectBox items={lineStyles} value={this.state.lineStyleValue} onValueChanged={this.changeStyle} width={120}> </SelectBox> </div> </div> </div> ); } } export default App;