Angular Charts - Pie with Custom Fill Styles

import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxPieChartModule } from 'devextreme-angular'; import { registerGradient, registerPattern } from 'devextreme/common/charts'; import { Data, Service } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } let modulePrefix = ''; // @ts-ignore if (window && window.config?.packageConfigPaths) { modulePrefix = '/app'; } @Component({ selector: 'demo-app', templateUrl: `app/app.component.html`, styleUrls: [`app/app.component.css`], providers: [Service], }) export class AppComponent { data: Data[]; imagePatternSize = 12; shapePatternSize = 6; constructor(service: Service) { this.data = service.getData(); } customizePoint = (point) => { const color = point.series.getPointsByArg(point.argument)[0].getColor(); let fillId; switch (point.argument) { case 'Stripes': fillId = this.getStrokePattern(color); break; case 'Grid': fillId = this.getSquarePattern(color); break; case 'Linear Gradient': fillId = this.getLinearGradient(color); break; case 'Radial Gradient': fillId = this.getRadialGradient(color); break; case 'Image': fillId = this.getPatternImage(color); break; default: break; } return { color: { fillId } }; }; customizeText = (info) => info.argument; private hexToRgb = (hex: string, opacity = 1) => { const hexColorParts = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); return `rgba(${parseInt(hexColorParts[1], 16)}, ${parseInt(hexColorParts[2], 16)}, ${parseInt(hexColorParts[3], 16)}, ${opacity})`; }; private getGradient = (type: string, color1: string, color2: string) => registerGradient(type, { colors: [{ offset: '20%', color: color1, }, { offset: '90%', color: color2, }], }); private getLinearGradient = (color: string) => this.getGradient('linear', color, this.hexToRgb(color, 0.5)); private getRadialGradient = (color: string) => this.getGradient('radial', this.hexToRgb(color, 0.5), color); private getPatternImage = (color: string) => registerPattern({ width: this.imagePatternSize, height: this.imagePatternSize, template: (container) => { const rect = this.createRect(this.imagePatternSize, color, '', 0); const image = document.createElementNS('http://www.w3.org/2000/svg', 'image'); image.setAttribute('x', '0'); image.setAttribute('y', '0'); image.setAttribute('width', this.imagePatternSize.toString()); image.setAttribute('height', this.imagePatternSize.toString()); image.setAttribute('href', '../../../../images/Charts/PieWithCustomStyles/diamond.svg'); image.setAttribute('opacity', '0.6'); container.appendChild(rect); container.appendChild(image); }, }); private getStrokePattern = (color: string) => registerPattern({ width: this.shapePatternSize, height: this.shapePatternSize, template: (container) => { const halfSize = this.shapePatternSize / 2; const oneAndAHalfSize = this.shapePatternSize * 1.5; const d = `M ${halfSize} ${-halfSize} L ${-halfSize} ${halfSize} M 0 ${ this.shapePatternSize } L ${ this.shapePatternSize } 0 M ${oneAndAHalfSize} ${halfSize} L ${halfSize} ${oneAndAHalfSize}`; const path = document.createElementNS('http://www.w3.org/2000/svg', 'path'); path.setAttribute('stroke', color); path.setAttribute('stroke-width', '2'); path.setAttribute('d', d); container.appendChild(path); }, }); private getSquarePattern = (color: string) => registerPattern({ width: this.shapePatternSize, height: this.shapePatternSize, template: (container) => { const rect = this.createRect(this.shapePatternSize, '', color, 2); container.appendChild(rect); }, }); private createRect = (size: number, fill: string, stroke: string, strokeWidth: number) => { const rect = document.createElementNS('http://www.w3.org/2000/svg', 'rect'); rect.setAttribute('x', '0'); rect.setAttribute('y', '0'); rect.setAttribute('width', size.toString()); rect.setAttribute('height', size.toString()); rect.setAttribute('fill', fill); rect.setAttribute('stroke', stroke); rect.setAttribute('stroke-width', strokeWidth.toString()); return rect; }; } @NgModule({ imports: [ BrowserModule, DxPieChartModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);

#pie { height: 440px; }

import { Injectable } from '@angular/core'; export class Data { type: string; value: number; } const data: Data[] = [{ type: 'Stripes', value: 1, }, { type: 'Grid', value: 1, }, { type: 'Linear Gradient', value: 1, }, { type: 'Radial Gradient', value: 1, }, { type: 'Image', value: 1, }]; @Injectable() export class Service { getData(): Data[] { return data; } }

// In real applications, you should not transpile code in the browser. // You can see how to create your own application with Angular and DevExtreme here: // https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/ const componentNames = [ 'accordion', 'action-sheet', 'autocomplete', 'bar-gauge', 'box', 'bullet', 'button-group', 'button', 'calendar', 'chart', 'chat', 'check-box', 'circular-gauge', 'color-box', 'context-menu', 'data-grid', 'date-box', 'date-range-box', 'defer-rendering', 'diagram', 'draggable', 'drawer', 'drop-down-box', 'drop-down-button', 'file-manager', 'file-uploader', 'filter-builder', 'form', 'funnel', 'gallery', 'gantt', 'html-editor', 'linear-gauge', 'list', 'load-indicator', 'load-panel', 'lookup', 'map', 'menu', 'multi-view', 'nested', 'number-box', 'pagination', 'pie-chart', 'pivot-grid-field-chooser', 'pivot-grid', 'polar-chart', 'popover', 'popup', 'progress-bar', 'radio-group', 'range-selector', 'range-slider', 'recurrence-editor', 'resizable', 'responsive-box', 'sankey', 'scheduler', 'scroll-view', 'select-box', 'slider', 'sortable', 'sparkline', 'speed-dial-action', 'splitter', 'switch', 'tab-panel', 'tabs', 'tag-box', 'text-area', 'text-box', 'tile-view', 'toast', 'toolbar', 'tooltip', 'tree-list', 'tree-map', 'tree-view', 'validation-group', 'validation-summary', 'validator', 'vector-map', ]; window.exports = window.exports || {}; window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/time_zone_utils.js': { 'esModule': true, }, 'devextreme/localization.js': { 'esModule': true, }, 'devextreme/viz/palette.js': { 'esModule': true, }, '@angular/platform-browser-dynamic': { 'esModule': true, }, '@angular/platform-browser': { 'esModule': true, }, '@angular/core': { 'esModule': true, }, '@angular/common': { 'esModule': true, }, '@angular/common/http': { 'esModule': true, }, '@angular/animations': { 'esModule': true, }, '@angular/forms': { 'esModule': true, }, 'openai': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', 'bundles:': '../../../../bundles/', 'externals:': '../../../../bundles/externals/', }, map: { 'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.js', 'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js', /* @angular */ '@angular/compiler': 'bundles:@angular/compiler.umd.js', '@angular/platform-browser-dynamic': 'bundles:@angular/platform-browser-dynamic.umd.js', '@angular/core': 'bundles:@angular/core.umd.js', '@angular/core/primitives/signals': 'bundles:@angular/core.primitives.signals.umd.js', '@angular/common': 'bundles:@angular/common.umd.js', '@angular/common/http': 'bundles:@angular/common-http.umd.js', '@angular/platform-browser': 'bundles:@angular/platform-browser.umd.js', '@angular/platform-browser/animations': 'bundles:@angular/platform-browser.umd.js', '@angular/forms': 'bundles:@angular/forms.umd.js', /* devextreme */ 'devextreme': 'npm:devextreme@24.2.5/cjs', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12', 'devextreme/bundles/dx.all': 'npm:devextreme@24.2.5/bundles/dx.all.js', 'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.15', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.59', /* devextreme-angular umd maps */ 'devextreme-angular': 'bundles:devextreme-angular/devextreme-angular.umd.js', 'devextreme-angular/core': 'bundles:devextreme-angular/devextreme-angular-core.umd.js', 'devextreme-angular/http': 'bundles:devextreme-angular/devextreme-angular-http.umd.js', ...componentNames.reduce((acc, name) => { acc[`devextreme-angular/ui/${name}`] = `bundles:devextreme-angular/devextreme-angular-ui-${name}.umd.js`; acc[`devextreme-angular/ui/${name}/nested`] = `bundles:devextreme-angular/devextreme-angular-ui-${name}-nested.umd.js`; return acc; }, {}), 'tslib': 'npm:tslib/tslib.js', 'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js', 'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.js', 'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js', 'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign', 'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js', // Prettier 'prettier/standalone': 'npm:prettier@2.8.8/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js', }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts', }, 'devextreme': { defaultExtension: 'js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, 'rxjs': { defaultExtension: 'js', }, 'rxjs/operators': { defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@3.0.12/inferno/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devexpress-diagram@2.2.15/package.json', 'npm:devexpress-gantt@4.1.59/package.json', ], }; System.config(window.config); // System.import('@angular/compiler').catch(console.error.bind(console));

<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <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=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.2.5/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.14.10/bundles/zone.umd.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.13/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script src="config.js"></script> <script> System.import("app").catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>