import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import './styles.css';
//
import '@angular/compiler';
import { Component, Inject, enableProdMode, ViewChild, ɵresolveComponentResources, AfterViewInit } from '@angular/core';
import { BrowserModule, bootstrapApplication } from '@angular/platform-browser';
import { WjInputModule } from '@mescius/wijmo.angular2.input';
import { WjChartModule } from '@mescius/wijmo.angular2.chart';
import { WjChartAnalyticsModule } from '@mescius/wijmo.angular2.chart.analytics';
import { DataService } from './app.data';
import * as wjInput from '@mescius/wijmo.input';
import * as wjChart from '@mescius/wijmo.chart';
import * as wjChartAnalytics from '@mescius/wijmo.chart.analytics';
//
@Component({
standalone: true,
providers: [DataService],
imports: [WjInputModule, WjChartModule, WjChartAnalyticsModule, BrowserModule],
selector: 'app-component',
templateUrl: 'src/app.component.html',
})
export class AppComponent implements AfterViewInit {
data: any[];
cbData: string[];
order: number;
eqEle: HTMLDivElement;
trendlineMinX: number;
trendlineMaxX: number;
@ViewChild('orderIpt', { static: true }) orderIpt: wjInput.InputNumber;
@ViewChild('trendline', { static: true }) trendLine: wjChartAnalytics.TrendLine;
@ViewChild('flexChart', { static: true }) theChart: wjChart.FlexChart;
//
constructor(@Inject(DataService) private dataService: DataService) {
this.data = dataService.getData();
this.cbData = dataService.getComboData();
this.order = 2;
this.trendlineMinX = 0;
this.trendlineMaxX = 0;
}
ngAfterViewInit() {
this.updateTrendLineRange();
}
updateTrendLineRange() {
if (!this.theChart) return;
let data: any[] = this.theChart.itemsSource;
let xValues: number[] = data.map((item) => item.x);
let minX: number = Math.min(...xValues);
let maxX: number = Math.max(...xValues);
let range: number = maxX - minX;
this.trendlineMinX = minX - range * 0.1; // 10% of range below minX
this.trendlineMaxX = maxX + range * 0.3; // 30% of range above maxX
}
//
showEquation() {
if (!this.eqEle) {
this.eqEle = <HTMLDivElement>document.getElementById('equation');
}
this.eqEle.innerHTML = '';
setTimeout(() => (this.eqEle.innerHTML = this.trendLine.getEquation()), 100);
}
//
randomData() {
this.data = this.dataService.getData();
this.updateTrendLineRange();
this.showEquation();
}
//
valueChanged(s: wjInput.InputNumber) {
if (s.value >= s.min && s.value <= s.max) {
this.order = s.value;
this.updateTrendLineRange();
this.showEquation();
}
}
//
textChanged(s: wjInput.ComboBox) {
let trendLine = this.trendLine;
if (!trendLine) {
return;
}
trendLine.name = s.text;
if (s.text) {
// show trendline
trendLine.fitType = <any>s.text;
trendLine.visibility = wjChart.SeriesVisibility.Visible;
} else {
// hide trendline
trendLine.visibility = wjChart.SeriesVisibility.Hidden;
}
switch (
s.text // enable/disable order input
) {
case 'Polynomial':
case 'Fourier':
this.orderIpt.isDisabled = false;
break;
default:
this.orderIpt.isDisabled = true;
break;
}
this.updateTrendLineRange();
this.showEquation();
}
}
//
//
enableProdMode();
// Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings.
ɵresolveComponentResources(fetch).then(() => {
// Bootstrap application
bootstrapApplication(AppComponent).catch((err) => console.error(err));
});
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>MESCIUS Wijmo FlexChart Trendlines</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Polyfills -->
<script src="node_modules/core-js/client/shim.min.js"></script>
<script src="node_modules/zone.js/fesm2015/zone.min.js"></script>
<!-- SystemJS -->
<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>
// workaround to load 'rxjs/operators' from the rxjs bundle
System.import('rxjs').then(function (m) {
System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators));
System.import('./src/app.component');
});
</script>
</head>
<body>
<app-component></app-component>
</body>
</html>
<div class="container-fluid">
<div class="form-group">
<label for="fitType">Trendline Type: </label>
<wj-combo-box #cb [isRequired]="false" placeholder="None" [itemsSource]="cbData" (textChanged)="textChanged(cb)"></wj-combo-box><br />
<label for="order">Order: </label>
<wj-input-number #orderIpt [step]="1" [min]="1" [max]="6" [value]="2" (valueChanged)="valueChanged(orderIpt)"></wj-input-number><br />
<label for="equation">Equation: </label>
<div id="equation" class="equation"></div><br>
<label for="btnRandomize">Randomize Data</label>
<button id="btnRandomize" class="btn btn-default" (click)="randomData()">
Go
</button>
<wj-flex-chart #flexChart [itemsSource]="data" chartType="Scatter" bindingX="x">
<wj-flex-chart-axis wjProperty="axisY" [axisLine]="true"></wj-flex-chart-axis>
<wj-flex-chart-series name="Raw Data" binding="y"></wj-flex-chart-series>
<wj-flex-chart-trend-line #trendline binding="y" [minX]="trendlineMinX" [maxX]="trendlineMaxX" [order]="order" [style]="{stroke:'darkred',strokeWidth:3}" visibility="Hidden"></wj-flex-chart-trend-line>
</wj-flex-chart>
</div>
</div>
import { Injectable } from '@angular/core';
//
@Injectable()
export class DataService {
getData() {
let arr = [],
cnt = 50,
a = Math.random(),
b = Math.random();
//
for (let i = 1; i < cnt; i++) {
arr.push({
x: i,
y: a + i * b + i * Math.random()
});
}
//
return arr;
}
//
getComboData() {
return 'Linear,Exponential,Logarithmic,Power,Fourier,Polynomial,MinX,MinY,MaxX,MaxY,AverageX,AverageY'.split(',');
}
}
.wj-flexchart {
height: 250px;
margin: 10px 0;
}
.wj-control {
margin-bottom: 3px;
}
label {
width: 120px;
text-align: right;
}
.equation {
display: inline-block;
font-style: italic;
font-size: 80%;
}
.wj-combobox, .wj-inputnumber {
width: 120px;
margin-right: 12px;
}
body {
margin-bottom: 24pt;
}
(function (global) {
SystemJS.config({
transpiler: './plugin-typescript.js',
typescriptOptions: {
"target": "ES2022",
"module": "system",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
},
baseURL: 'node_modules/',
meta: {
'typescript': {
"exports": "ts"
},
'*.css': { loader: 'systemjs-plugin-css' },
'*.mjs': {
format: 'esm'
},
},
paths: {
// paths serve as alias
'npm:': ''
},
packageConfigPaths: [
'/node_modules/*/package.json',
"/node_modules/@angular/*/package.json",
"/node_modules/@mescius/*/package.json"
],
map: {
'core-js': 'https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js',
'typescript': 'https://cdnjs.cloudflare.com/ajax/libs/typescript/5.2.2/typescript.min.js',
"rxjs": "https://cdnjs.cloudflare.com/ajax/libs/rxjs/7.8.1/rxjs.umd.min.js",
'systemjs-plugin-css': 'https://cdn.jsdelivr.net/npm/systemjs-plugin-css@0.1.37/css.js',
'@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.angular2.chart.analytics": "npm:@mescius/wijmo.angular2.chart.analytics/index.js",
"@mescius/wijmo.angular2.chart.animation": "npm:@mescius/wijmo.angular2.chart.animation/index.js",
"@mescius/wijmo.angular2.chart.annotation": "npm:@mescius/wijmo.angular2.chart.annotation/index.js",
"@mescius/wijmo.angular2.chart.finance.analytics": "npm:@mescius/wijmo.angular2.chart.finance.analytics/index.js",
"@mescius/wijmo.angular2.chart.finance": "npm:@mescius/wijmo.angular2.chart.finance/index.js",
"@mescius/wijmo.angular2.chart.hierarchical": "npm:@mescius/wijmo.angular2.chart.hierarchical/index.js",
"@mescius/wijmo.angular2.chart.interaction": "npm:@mescius/wijmo.angular2.chart.interaction/index.js",
"@mescius/wijmo.angular2.chart.radar": "npm:@mescius/wijmo.angular2.chart.radar/index.js",
'@mescius/wijmo.angular2.chart.map': 'npm:@mescius/wijmo.angular2.chart.map/index.js',
"@mescius/wijmo.angular2.chart": "npm:@mescius/wijmo.angular2.chart/index.js",
"@mescius/wijmo.angular2.core": "npm:@mescius/wijmo.angular2.core/index.js",
"@mescius/wijmo.angular2.gauge": "npm:@mescius/wijmo.angular2.gauge/index.js",
"@mescius/wijmo.angular2.grid.detail": "npm:@mescius/wijmo.angular2.grid.detail/index.js",
"@mescius/wijmo.angular2.grid.filter": "npm:@mescius/wijmo.angular2.grid.filter/index.js",
"@mescius/wijmo.angular2.grid.grouppanel": "npm:@mescius/wijmo.angular2.grid.grouppanel/index.js",
"@mescius/wijmo.angular2.grid.search": "npm:@mescius/wijmo.angular2.grid.search/index.js",
"@mescius/wijmo.angular2.grid.multirow": "npm:@mescius/wijmo.angular2.grid.multirow/index.js",
"@mescius/wijmo.angular2.grid.sheet": "npm:@mescius/wijmo.angular2.grid.sheet/index.js",
'@mescius/wijmo.angular2.grid.transposed': 'npm:@mescius/wijmo.angular2.grid.transposed/index.js',
'@mescius/wijmo.angular2.grid.transposedmultirow': 'npm:@mescius/wijmo.angular2.grid.transposedmultirow/index.js',
"@mescius/wijmo.angular2.grid": "npm:@mescius/wijmo.angular2.grid/index.js",
"@mescius/wijmo.angular2.input": "npm:@mescius/wijmo.angular2.input/index.js",
"@mescius/wijmo.angular2.olap": "npm:@mescius/wijmo.angular2.olap/index.js",
"@mescius/wijmo.angular2.viewer": "npm:@mescius/wijmo.angular2.viewer/index.js",
"@mescius/wijmo.angular2.nav": "npm:@mescius/wijmo.angular2.nav/index.js",
"@mescius/wijmo.angular2.directivebase": "npm:@mescius/wijmo.angular2.directivebase/index.js",
'@mescius/wijmo.angular2.barcode.common': 'npm:@mescius/wijmo.angular2.barcode.common/index.js',
'@mescius/wijmo.angular2.barcode.composite': 'npm:@mescius/wijmo.angular2.barcode.composite/index.js',
'@mescius/wijmo.angular2.barcode.specialized': 'npm:@mescius/wijmo.angular2.barcode.specialized/index.js',
'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css',
'jszip': 'https://cdnjs.cloudflare.com/ajax/libs/jszip/3.10.1/jszip.min.js',
'@angular/core': 'npm:@angular/core/fesm2022/core.mjs',
'@angular/core/primitives/signals': 'npm:@angular/core/fesm2022/primitives/signals.mjs',
'@angular/core/primitives/event-dispatch': 'npm:@angular/core/fesm2022/primitives/event-dispatch.mjs',
'@angular/common': 'npm:@angular/common/fesm2022/common.mjs',
'@angular/common/http': 'npm:@angular/common/fesm2022/http.mjs',
'@angular/compiler': 'npm:@angular/compiler/fesm2022/compiler.mjs',
'@angular/platform-browser': 'npm:@angular/platform-browser/fesm2022/platform-browser.mjs',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/fesm2022/platform-browser-dynamic.mjs',
'@angular/http': 'npm:@angular/http/fesm2022/http.mjs',
'@angular/router': 'npm:@angular/router/fesm2022/router.mjs',
'@angular/forms': 'npm:@angular/forms/fesm2022/forms.mjs',
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
"./src": {
defaultExtension: 'ts'
},
"node_modules": {
defaultExtension: 'js'
},
wijmo: {
defaultExtension: 'js',
}
}
});
})(this);
