Pivot Chart (Vue)

The PivotChart is an extension of the FlexChart control. To use it, simple set the PivotChart.itemsSource property to an instance of a PivotEngine in order to connect the two components. The PivotChart below displays amounts by person and expense type.

This example uses Vue.

<template> <div class="container-fluid"> <wj-pivot-chart :items-source="ngChart" :show-title="true" show-legend="Auto" :initialized="initializePivotChart"> </wj-pivot-chart> <label> Chart Type <wj-combo-box :items-source="chartTypes" :text-changed="onChartTypeChanged"></wj-combo-box> </label> <br /> <label> Show Legend<wj-combo-box :items-source="showLegendOptions" :text-changed="onShowLegendOptionChanged"></wj-combo-box> </label> <br /> <label> Show Chart Title <input id="chartTitle" type="checkbox" checked="checked" v-on:click="onChartTitleClick"> </label> <div id="export" v-on:click="onExportClick"> Export to <button class="btn btn-default">PNG</button> <button class="btn btn-default">JPEG</button> <button class="btn btn-default">SVG</button> </div> </div> </template> <script> import '@grapecity/wijmo.styles/wijmo.css'; import 'bootstrap.css'; import Vue from 'vue'; import '@grapecity/wijmo.vue2.olap'; import '@grapecity/wijmo.vue2.input'; import * as wjcOlap from '@grapecity/wijmo.olap'; import { getData } from './data' import '@grapecity/wijmo.chart.render'; let App = Vue.extend({ name: "app", data: function() { return { ngChart: new wjcOlap.PivotEngine({ itemsSource: getData(), // raw data valueFields: ['Amount'], // summarize amounts rowFields: ['Buyer', 'Type'], // by buyer and type }), chartTypes: 'Column,Bar,Line,Area,Pie'.split(','), showLegendOptions: 'Auto,Always,Never'.split(',') }; }, methods: { initializePivotChart(pivotChart) { this.pivotChart = pivotChart; this.pivotChart.engine.fields.getField('Amount').format = 'c0'; }, onChartTypeChanged(combo) { this.pivotChart.chartType = wjcOlap.PivotChartType[combo.text]; }, onShowLegendOptionChanged(combo) { this.pivotChart.showLegend = wjcOlap.LegendVisibility[combo.text]; }, onChartTitleClick(e) { this.pivotChart.showTitle = e.target.checked; }, onExportClick(e) { if (e.target instanceof HTMLButtonElement) { this.pivotChart.saveImageToFile('FlexChart.' + e.target.textContent.trim()); } } } }); new Vue({ render: h => h(App) }).$mount("#app"); </script> <style> .wj-pivotchart { margin: auto; } .wj-pivotchart .wj-flexchart { border: none; height: 300px; } body { margin-bottom: 48pt; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Grapecity Wijmo OLAP Pivot Chart Overview</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.vue'); </script> </head> <body> <div id="app"> </div> </body> </html>
export function getData() { var yr = new Date().getFullYear(); return [{ date: new Date(yr, 0, 1), buyer: 'Mom', type: 'Fuel', amount: 74 }, { date: new Date(yr, 0, 15), buyer: 'Mom', type: 'Food', amount: 235 }, { date: new Date(yr, 0, 17), buyer: 'Dad', type: 'Sports', amount: 20 }, { date: new Date(yr, 0, 21), buyer: 'Kelly', type: 'Books', amount: 125 }, { date: new Date(yr, 1, 2), buyer: 'Mom', type: 'Food', amount: 235 }, { date: new Date(yr, 1, 20), buyer: 'Kelly', type: 'Music', amount: 20 }, { date: new Date(yr, 1, 25), buyer: 'Kelly', type: 'Tickets', amount: 125 }, ]; }
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