경보 영역

FlexChart의 renderingrendered 이벤트를 사용하여 일반 차트 뒤나 위에 임의 요소를 추가할 수 있습니다.

예를 들어 아래 차트는 차트의 rendering 이벤트 핸들러에 'buy' 및 'sell' 영역이 생성되어 있습니다.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import * as chart from '@grapecity/wijmo.chart'; import { getData } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { let linechart = new chart.FlexChart('#chart', { header: 'Device Temperature Monitor', legend: { position: chart.Position.None }, chartType: chart.ChartType.Line, bindingX: 'x', series: [{ binding: 'y', name: 'Temperature' }], axisY: { min: 0, max: 100, majorGrid: false, title: 'Temperature(°C)' }, rendering: function (s, e) { var xMin = s.axisX.actualMin.valueOf(), xMax = s.axisX.actualMax.valueOf(), yMin = s.axisY.actualMin, yMax = s.axisY.actualMax; if (isNaN(xMin) && isNaN(xMax)) { return; } drawAlarmZone(s, e.engine, xMin, 80, xMax, yMax, 'alarm-zone'); drawAlarmZone(s, e.engine, xMin, 50, xMax, 80, 'warning-zone'); drawAlarmZone(s, e.engine, xMin, yMin, xMax, 50, 'safe-zone'); } }); // setInterval(() => { let data = getData(); linechart.itemsSource = data; }, 1000); } // draw an alarm zone into the chart function drawAlarmZone(chart, engine, xMin, yMin, xMax, yMax, className) { var pt1 = chart.dataToPoint(xMin, yMin); var pt2 = chart.dataToPoint(xMax, yMax); engine.drawRect(Math.min(pt1.x, pt2.x), Math.min(pt1.y, pt2.y), Math.abs(pt2.x - pt1.x), Math.abs(pt2.y - pt1.y), className); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexChart Alarm Zones</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <div id="chart"></div> </div> </body> </html>
// get temperature(random data) of device. let data = []; export function getData() { let date = new Date(); if (data.length === 0) { date.setSeconds(date.getSeconds() - 99); for (let i = 1; i < 100; i++) { data.push({ x: new Date(date.valueOf()), y: getRandomTemp() }); date.setSeconds(date.getSeconds() + 1); } } if (data.length === 100) { data.splice(0, 1); } data.push({ x: date, y: getRandomTemp() }); return data.slice(); } function getRandomTemp() { let seed = Math.random(); if (seed > 0.9) { return (Math.round(Math.random() * 800) / 10) + 20; } else if (seed > 0.6) { return (Math.round(Math.random() * 600) / 10) + 20; } else { return (Math.round(Math.random() * 300) / 10) + 20; } }
body { margin-bottom: 24px; } label { margin-right: 3px; } .alarm-zone { fill: red; opacity: .15; stroke-width: 0; } .warning-zone { fill: orange; opacity: .15; stroke-width: 0; } .safe-zone { fill: green; opacity: .15; stroke-width: 0; }
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true }, meta: { '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'jszip': 'npm:jszip/dist/jszip.js', '@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js', '@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js', '@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles', '@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures', '@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js', '@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js', '@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js', '@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js', '@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js', '@grapecity/wijmo.chart.finance.analytics': 'npm:@grapecity/wijmo.chart.finance.analytics/index.js', '@grapecity/wijmo.chart.hierarchical': 'npm:@grapecity/wijmo.chart.hierarchical/index.js', '@grapecity/wijmo.chart.interaction': 'npm:@grapecity/wijmo.chart.interaction/index.js', '@grapecity/wijmo.chart.radar': 'npm:@grapecity/wijmo.chart.radar/index.js', '@grapecity/wijmo.chart.render': 'npm:@grapecity/wijmo.chart.render/index.js', '@grapecity/wijmo.chart.webgl': 'npm:@grapecity/wijmo.chart.webgl/index.js', '@grapecity/wijmo.gauge': 'npm:@grapecity/wijmo.gauge/index.js', '@grapecity/wijmo.grid': 'npm:@grapecity/wijmo.grid/index.js', '@grapecity/wijmo.grid.detail': 'npm:@grapecity/wijmo.grid.detail/index.js', '@grapecity/wijmo.grid.filter': 'npm:@grapecity/wijmo.grid.filter/index.js', '@grapecity/wijmo.grid.search': 'npm:@grapecity/wijmo.grid.search/index.js', '@grapecity/wijmo.grid.grouppanel': 'npm:@grapecity/wijmo.grid.grouppanel/index.js', '@grapecity/wijmo.grid.multirow': 'npm:@grapecity/wijmo.grid.multirow/index.js', '@grapecity/wijmo.grid.transposed': 'npm:@grapecity/wijmo.grid.transposed/index.js', '@grapecity/wijmo.grid.transposedmultirow': 'npm:@grapecity/wijmo.grid.transposedmultirow/index.js', '@grapecity/wijmo.grid.pdf': 'npm:@grapecity/wijmo.grid.pdf/index.js', '@grapecity/wijmo.grid.sheet': 'npm:@grapecity/wijmo.grid.sheet/index.js', '@grapecity/wijmo.grid.xlsx': 'npm:@grapecity/wijmo.grid.xlsx/index.js', '@grapecity/wijmo.grid.selector': 'npm:@grapecity/wijmo.grid.selector/index.js', '@grapecity/wijmo.grid.cellmaker': 'npm:@grapecity/wijmo.grid.cellmaker/index.js', '@grapecity/wijmo.nav': 'npm:@grapecity/wijmo.nav/index.js', '@grapecity/wijmo.odata': 'npm:@grapecity/wijmo.odata/index.js', '@grapecity/wijmo.olap': 'npm:@grapecity/wijmo.olap/index.js', '@grapecity/wijmo.pdf': 'npm:@grapecity/wijmo.pdf/index.js', '@grapecity/wijmo.pdf.security': 'npm:@grapecity/wijmo.pdf.security/index.js', '@grapecity/wijmo.viewer': 'npm:@grapecity/wijmo.viewer/index.js', '@grapecity/wijmo.xlsx': 'npm:@grapecity/wijmo.xlsx/index.js', '@grapecity/wijmo.undo': 'npm:@grapecity/wijmo.undo/index.js', '@grapecity/wijmo.interop.grid': 'npm:@grapecity/wijmo.interop.grid/index.js', '@grapecity/wijmo.touch': 'npm:@grapecity/wijmo.touch/index.js', '@grapecity/wijmo.cloud': 'npm:@grapecity/wijmo.cloud/index.js', '@grapecity/wijmo.barcode': 'npm:@grapecity/wijmo.barcode/index.js', '@grapecity/wijmo.barcode.common': 'npm:@grapecity/wijmo.barcode.common/index.js', '@grapecity/wijmo.barcode.composite': 'npm:@grapecity/wijmo.barcode.composite/index.js', '@grapecity/wijmo.barcode.specialized': 'npm:@grapecity/wijmo.barcode.specialized/index.js', 'jszip': 'npm:jszip/dist/jszip.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'css': 'npm:systemjs-plugin-css/css.js', 'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js', 'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);