チャート:編集可能な注釈 (React)

このページでは、FlexChartに注釈を表示および編集する方法を示します。

このサンプルでは、次の注釈編集操作がサポートされます。

  • チャート左上の注釈ボタンをクリックして、チャートのプロット領域をクリックまたはドラッグして、注釈を追加できます。
  • 左端の[データ座標]ボタンをクリックして、追加する注釈の座標を絶対座標とデータ座標から選択できます。絶対座標ではスクロールしても表示位置が変わりません。
  • 新しいボタンを追加してカスタム注釈を作成できます。ここでは黄色の三角形ボタンを追加しています。
  • チャート上で注釈をドラッグできます。
  • 注釈をダブルクリックして、テキストを編集できます。
  • [X]ボタンを使用して注釈を削除できます。

このサンプルはReactを使用しています。

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useRef, useState } from 'react'; import useEvent from 'react-use-event-hook'; import * as wjChart from '@mescius/wijmo.chart'; import * as Core from '@mescius/wijmo'; import * as Chart from '@mescius/wijmo.react.chart'; import * as annotation from '@mescius/wijmo.chart.annotation'; import './app.css'; import { data } from './data'; import { EditableAnnotationLayer, Button } from './EditableAnnotationLayer'; import { AxisScrollbar } from './AxisScrollbar'; function App() { const [isEditable, setIsEditable] = useState(true); const [init, setInit] = useState(false); const theChartRef = useRef(null); const alRef = useRef(null); const editableChange = useEvent(() => { if (alRef.current) { alRef.current.isEditable = !isEditable; setIsEditable(!isEditable); } }); const chartInitialized = useEvent((flex) => { theChartRef.current = flex; let axisScrollBar = new AxisScrollbar(theChartRef.current.axes[0]); window.setTimeout(function () { axisScrollBar.maxPos = 0.5; }, 20); setInit(true); }); const chartRendered = useEvent(() => { if (init && !alRef.current) { alRef.current = new EditableAnnotationLayer(theChartRef.current); const al = alRef.current; al.isEditable = isEditable; // //add customize button var triangle, triangleBtn = new Button(function (engine) { var triangleIcon = new annotation.Polygon({ tooltip: 'カスタム - 三角 </br>ドラッグして三角の注釈を追加します。', points: [{ x: 10, y: 5 }, { x: 5, y: 15 }, { x: 15, y: 15 }], style: { fill: 'yellow' } }); triangleIcon.render(engine); return triangleIcon._element; }, function (point, isDataCoordinate) { var x = isDataCoordinate ? point.dx : point.x, y = isDataCoordinate ? point.dy : point.y; triangle = new annotation.Polygon({ attachment: isDataCoordinate ? annotation.AnnotationAttachment.DataCoordinate : annotation.AnnotationAttachment.Absolute, tooltip: 'カスタム注釈 - 三角', points: [{ x: x, y: y }, { x: x, y: y }, { x: x, y: y }], style: { fill: 'yellow' } }); al.items.push(triangle); }, function (originPoint, currentPoint, isDataCoordinate) { var ox = isDataCoordinate ? originPoint.dx : originPoint.x, oy = isDataCoordinate ? originPoint.dy : originPoint.y, cx = isDataCoordinate ? currentPoint.dx : currentPoint.x, cy = isDataCoordinate ? currentPoint.dy : currentPoint.y, offsetX = Math.abs(cx - ox), offsetY = cy - oy, isXDate = Core.isDate(ox), isYDate = Core.isDate(oy), oaDate = wjChart.FlexChart._fromOADate; triangle.points.clear(); triangle.points.push({ x: ox, y: isYDate ? oaDate(oy - offsetY) : oy - offsetY }); triangle.points.push({ x: isXDate ? oaDate(ox - offsetX) : ox - offsetX, y: isYDate ? oaDate(oy - 0 + offsetY) : oy + offsetY }); triangle.points.push({ x: isXDate ? oaDate(ox - 0 + offsetX) : ox + offsetX, y: isYDate ? oaDate(oy - 0 + offsetY) : oy + offsetY }); }); al.buttons.push(triangleBtn); //add pre-defined annotations. var watermarker = new annotation.Text({ position: annotation.AnnotationPosition.Left | annotation.AnnotationPosition.Top, attachment: annotation.AnnotationAttachment.Relative, text: 'watermarker', tooltip: 'テキストの透かし', point: { x: 1, y: 1 }, style: { 'fill': '#cccccc', 'font-size': '30px', opacity: 0.2 } }); al.items.push(watermarker); var imgmarker = new annotation.Image({ position: annotation.AnnotationPosition.Right | annotation.AnnotationPosition.Top, attachment: annotation.AnnotationAttachment.Relative, tooltip: '画像の透かし', point: { x: 0, y: 1 }, width: 128, height: 33, href: 'resources/wijmo-logo-text.png', style: { opacity: 0.2 } }); al.items.push(imgmarker); var centerHLine = new annotation.Line({ attachment: annotation.AnnotationAttachment.DataCoordinate, position: annotation.AnnotationPosition.Center, content: '垂直線', start: { x: 50, y: 0 }, end: { x: 50, y: 1000 }, style: { 'stroke-width': '2px', stroke: 'green' } }); al.items.push(centerHLine); var centerVLine = new annotation.Line({ attachment: annotation.AnnotationAttachment.Relative, position: annotation.AnnotationPosition.Center, content: '水平線', start: { x: 0, y: 0.5 }, end: { x: 1, y: 0.5 }, style: { 'stroke-width': '2px', stroke: 'red' } }); al.items.push(centerVLine); var topRange = new annotation.Polygon({ attachment: annotation.AnnotationAttachment.Relative, points: [{ x: 0, y: 0 }, { x: 0, y: 0.2 }, { x: 1, y: 0.2 }, { x: 1, y: 0 }], content: '上端の範囲', style: { fill: '#FEF0DB', opacity: 0.5, stroke: '#FEF0DB' } }); al.items.push(topRange); //flag var pointIndex = 10; ['black', 'blue', 'green', 'red', 'yellow'].forEach(function (v) { var flagSrc = 'resources/flag-' + v + '-icon.png'; var flag = new annotation.Image({ attachment: annotation.AnnotationAttachment.DataIndex, seriesIndex: 0, pointIndex: pointIndex, width: 24, height: 24, href: flagSrc }); al.items.push(flag); pointIndex += 10; }); var rect = new annotation.Rectangle({ attachment: annotation.AnnotationAttachment.DataCoordinate, point: { x: 10, y: 650 }, width: 120, height: 150, style: { 'stroke-dasharray': '4 4', stroke: 'red' } }); al.items.push(rect); var circle = new annotation.Circle({ seriesIndex: 0, attachment: annotation.AnnotationAttachment.DataCoordinate, radius: 80, point: { x: 70, y: 350 }, style: { stroke: 'blue', fill: 'blue', opacity: 0.3 } }); al.items.push(circle); } }); return (<div className="container-fluid"> <div className="form-group"> <label id="labelIsEditable">編集可能: <input type="checkbox" id="checkboxIsEditable" checked={isEditable} onChange={editableChange}/> </label> <Chart.FlexChart initialized={chartInitialized} itemsSource={data} tooltipContent="" rendered={chartRendered} chartType="Scatter" bindingX="x"> <Chart.FlexChartSeries name="データ" binding="y"/> </Chart.FlexChart> </div> </div>); } const container = document.getElementById('app'); if (container) { const root = ReactDOM.createRoot(container); root.render(<App />); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo Wijmo FlexChart Editable Annotations</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.40/system.src.js" integrity="sha512-G6mEj6h18+m3MvzdviSDfPle/TfH0//cXcB33AKlNR/Rha0yQsKefDZKRTkIZos97HEGq2JMV1RT5ybMoQ3WsQ==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html>
.wj-flexchart { margin: 10px 0; } .wj-flexchart .wjanno-editable-layer .wjanno-container { fill: #eee; stroke: #666; stroke-width: 1; } .wj-flexchart .wjanno-editable-layer .wjanno-dc-icon .wjanno-container { fill: #eee; } .wj-flexchart .wjanno-editable-layer .wjanno-icon-selected .wjanno-container { fill: #89E; } .no-selection { user-select: none; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; -o-user-select: none; } .wj-flexchart { padding-bottom: 25px; } /**** Axis Scrollbar Css *****/ .wj-flexchart .wj-axis-scrollbar-container { position: relative; } .wj-flexchart .wj-axis-scrollbar-container .wj-chart-rangeslider { border: 1px solid #EAEAEA; background-color: #EAEAEA; border-bottom-left-radius: 6px; border-bottom-right-radius: 6px; border-top-left-radius: 6px; border-top-right-radius: 6px; } .wj-flexchart .wj-axis-scrollbar-container .wj-chart-hrangeslider { height: 20px; } .wj-flexchart .wj-axis-scrollbar-container .wj-chart-vrangeslider { width: 20px; }
function getData() { var data = [], numCount = 100; for (var i = 0; i < numCount; i++) { data.push({ x: getRandomValue(100), y: getRandomValue(1000) }); } return data; } function getRandomValue(max) { return Math.round(Math.random() * max); } export const data = getData();
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