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    Charts

    Strips

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    DevExtreme Chart can display background strips to better highlight a range of values.

    To configure strips, declare an array of objects in the argumentAxis.strips[] or valueAxis.strips[] property. Each object in this array configures an individual strip. The startValue and endValue properties define the highlighted range.

    This demo shows two value axis strips. The code configures label text and font.color properties for each strip.

    You can specify the same appearance for all strips on a specific axis or in the Chart. To specify the same appearance, declare the stripStyle object in the valueAxis, argumentAxis, or commonAxisSettings object. Individual settings override common settings. In this example, we used the stripStyle object to specify the font weight and size for all strip labels on the value axis.

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    $(() => { const highAverage = 60.8; const lowAverage = 53; const highAverageColor = '#ff9b52'; const lowAverageColor = '#6199e6'; $('#chart').dxChart({ dataSource, series: [{ argumentField: 'day', valueField: 'temperature', type: 'spline', color: '#a3aaaa', }], valueAxis: { label: { customizeText, }, strips: [{ label: { text: 'Above average', font: { color: highAverageColor, }, }, startValue: highAverage, color: 'rgba(255,155,85,0.15)', }, { label: { text: 'Below average', font: { color: lowAverageColor, }, }, endValue: lowAverage, color: 'rgba(97,153,230,0.1)', }], stripStyle: { label: { font: { weight: 500, size: 14, }, }, }, }, export: { enabled: true, }, title: 'Temperature in September', legend: { visible: false, }, customizePoint() { if (this.value > highAverage) { return { color: highAverageColor }; } if (this.value < lowAverage) { return { color: lowAverageColor }; } return null; }, customizeLabel() { if (this.value > highAverage) { return getLabelsSettings(highAverageColor); } if (this.value < lowAverage) { return getLabelsSettings(lowAverageColor); } return null; }, }); function customizeText() { return `${this.valueText}&#176F`; } function getLabelsSettings(backgroundColor) { return { visible: true, backgroundColor, customizeText, }; } });
    <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.2.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.2.4/css/dx.light.css" /> <script src="https://cdn3.devexpress.com/jslib/21.2.4/js/dx.all.js"></script> <script src="data.js"></script> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="index.js"></script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="chart"></div> </div> </body> </html>
    #chart { height: 440px; }
    const dataSource = [{ temperature: 52, day: '1' }, { temperature: 57, day: '2' }, { temperature: 58, day: '3' }, { temperature: 56, day: '4' }, { temperature: 59, day: '5' }, { temperature: 59, day: '6' }, { temperature: 56, day: '7' }, { temperature: 62, day: '8' }, { temperature: 57, day: '9' }, { temperature: 54, day: '10' }, { temperature: 52, day: '11' }, { temperature: 58, day: '12' }, { temperature: 53, day: '13' }, { temperature: 54, day: '14' }, { temperature: 57, day: '15' }, { temperature: 61, day: '16' }, { temperature: 58, day: '17' }, { temperature: 63, day: '18' }, { temperature: 64, day: '19' }, { temperature: 52, day: '20' }, ];