Custom Column Series (Vue)

This sample shows custom column series for the FlexChart. It allows to set custom offset and width for the columns.

Learn about FlexChart | FlexChart API Reference

This example uses Vue.

<template> <div class="container-fluid"> <wj-flex-chart bindingX="name" header="Average Climate Chart" :itemsSource="data" :initialized="initialized" :palette="[ 'rgb(253, 191, 111)', 'rgb(255, 127, 0)' , 'rgb(166, 206, 227)', 'rgb(31, 120, 180)' ]" > <wj-flex-chart-legend position="Bottom"> </wj-flex-chart-legend> <wj-flex-chart-axis wjProperty="axisY" title="Temperature (°F)" ></wj-flex-chart-axis> <wj-flex-chart-animation></wj-flex-chart-animation> </wj-flex-chart> </div> </template> <script setup> import { FlexChart, Position, Axis } from "@mescius/wijmo.chart"; import { ColumnSeries } from "./ColumnSeries"; import { getData } from "./data"; import { ref } from "vue"; const data = ref(getData()); function initialized(chart) { let axisY2 = new Axis(Position.Right); axisY2.min = 0; axisY2.title = "Precipitation (inch)"; chart.series.push(new ColumnSeries({ binding: "t", name: "Mean Temperature", width: 1, offset: 0.5 })); chart.series.push(new ColumnSeries({ binding: "t2023", name: "2023 Temperature", width: 0.6, offset: -0.3 })); chart.series.push(new ColumnSeries({ axisY: axisY2, binding: "p", name: "Mean Precipitation", width: 1, offset: 0.5 })); chart.series.push(new ColumnSeries({ axisY: axisY2, binding: "p2023", name: "2023 Precipitation", width: 0.6, offset: -0.3 })); } </script> <style> body { margin-bottom: 24px; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexChart Basic Column Chart</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="compiler.js" type="module"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app.js'); </script> </head> <body> <div id="app"></div> </body> </html>
export function getData() { return [ { name:'New York', t:55.8, t2023:57.9, p:49.2, p2023: 59.29 }, { name:'San Francisco', t:57.7, t2023:58.1, p:22.89, p2023: 21.27 } ]; }
import { asNumber } from '@mescius/wijmo'; import { FlexChart, Series, RenderEventArgs, _RectArea, ChartType } from '@mescius/wijmo.chart'; /** * Column series with extended customization options. */ export class ColumnSeries extends Series { constructor(options) { super(); this._width = 1; this._offset = 0; this._chartType = ChartType.Column; this.rendered.addHandler(this._rendered.bind(this)); this.initialize(options); } /** * Gets or sets the relative column offset from the original position. * Default value is 0. */ get offset() { return this._offset; } set offset(value) { if (value !== this._offset) { this._offset = asNumber(value, true); this._invalidate(); } } /** * Gets or sets the relative column width comparing with the original width. * Default value is 1, the width is the same as original. */ get width() { return this._width; } set width(value) { if (value !== this._width && value >= 0) { this._width = asNumber(value, true); this._invalidate(); } } _rendered(sender, args) { const len = this._getLength(); const si = this.__chart.series.indexOf(this); const map = this._plotter.hitTester._map[si]; for (let i = 0; i < len; i++) { const rect = this.getPlotElement(i); if (rect && rect.nodeName === 'rect') { // change offset if (this.offset !== 0) { let x = +rect.getAttribute('x'); let w = +rect.getAttribute('width'); rect.setAttribute('x', (x + w * this.offset).toString()); } // change width if (this.width !== 1) { let w = +rect.getAttribute('width'); rect.setAttribute('width', (w * this.width).toString()); } // update hit test data let area = map[i]; if (area && area.rect) { area.rect.left = +rect.getAttribute('x'); area.rect.width = +rect.getAttribute('width'); } } } } }
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true }, meta: { '*.css': { loader: 'css' }, '*.vue': { loader: '../plugin-vue/index.js' } //'*.vue': { loader: 'systemjs-plugin-vue' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js', '@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js', '@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js', '@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js', '@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js', '@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js', '@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js', '@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js', '@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js', '@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js', '@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js', '@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js', '@mescius/wijmo.grid.style': 'npm:@mescius/wijmo.grid.style/index.js', '@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js', '@mescius/wijmo.grid.multirow': 'npm:@mescius/wijmo.grid.multirow/index.js', '@mescius/wijmo.grid.transposed': 'npm:@mescius/wijmo.grid.transposed/index.js', '@mescius/wijmo.grid.transposedmultirow': 'npm:@mescius/wijmo.grid.transposedmultirow/index.js', '@mescius/wijmo.grid.pdf': 'npm:@mescius/wijmo.grid.pdf/index.js', '@mescius/wijmo.grid.sheet': 'npm:@mescius/wijmo.grid.sheet/index.js', '@mescius/wijmo.grid.xlsx': 'npm:@mescius/wijmo.grid.xlsx/index.js', '@mescius/wijmo.grid.selector': 'npm:@mescius/wijmo.grid.selector/index.js', '@mescius/wijmo.grid.cellmaker': 'npm:@mescius/wijmo.grid.cellmaker/index.js', '@mescius/wijmo.nav': 'npm:@mescius/wijmo.nav/index.js', '@mescius/wijmo.odata': 'npm:@mescius/wijmo.odata/index.js', '@mescius/wijmo.olap': 'npm:@mescius/wijmo.olap/index.js', '@mescius/wijmo.rest': 'npm:@mescius/wijmo.rest/index.js', '@mescius/wijmo.pdf': 'npm:@mescius/wijmo.pdf/index.js', '@mescius/wijmo.pdf.security': 'npm:@mescius/wijmo.pdf.security/index.js', '@mescius/wijmo.viewer': 'npm:@mescius/wijmo.viewer/index.js', '@mescius/wijmo.xlsx': 'npm:@mescius/wijmo.xlsx/index.js', '@mescius/wijmo.undo': 'npm:@mescius/wijmo.undo/index.js', '@mescius/wijmo.interop.grid': 'npm:@mescius/wijmo.interop.grid/index.js', '@mescius/wijmo.touch': 'npm:@mescius/wijmo.touch/index.js', '@mescius/wijmo.cloud': 'npm:@mescius/wijmo.cloud/index.js', '@mescius/wijmo.barcode': 'npm:@mescius/wijmo.barcode/index.js', '@mescius/wijmo.barcode.common': 'npm:@mescius/wijmo.barcode.common/index.js', '@mescius/wijmo.barcode.composite': 'npm:@mescius/wijmo.barcode.composite/index.js', '@mescius/wijmo.barcode.specialized': 'npm:@mescius/wijmo.barcode.specialized/index.js', "@mescius/wijmo.vue2.chart.analytics": "npm:@mescius/wijmo.vue2.chart.analytics/index.js", "@mescius/wijmo.vue2.chart.animation": "npm:@mescius/wijmo.vue2.chart.animation/index.js", "@mescius/wijmo.vue2.chart.annotation": 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'@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', '@vue/compiler-dom':'npm:@vue/compiler-dom/dist/compiler-dom.global.prod.js', '@vue/runtime-dom':'npm:@vue/runtime-dom/dist/runtime-dom.global.prod.js', '@vue/shared':'npm:@vue/shared/dist/shared.cjs.js', 'vue-loader': 'npm:systemjs-vue-browser/index.js', //'systemjs-plugin-vue': 'npm:systemjs-plugin-vue/index.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' }, rxjs: { defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);