<template>
<div class="container-fluid">
<div class="form-group">
<label for="fitType">Trendline Type: </label>
<wj-combo-box :isRequired="false" placeholder="None" :itemsSource="comboData" :textChanged="textChanged"
:initialized="initializeCombo"></wj-combo-box><br />
<label for="order">Order: </label>
<wj-input-number :step="1" :min="1" :max="6" :value="order" :valueChanged="orderChanged"
:initialized="initializeInput"></wj-input-number><br />
<label>Equation: </label>
<div id="equation" class="equation"></div><br />
<label for="btnRandomize">Randomize Data</label>
<button id="btnRandomize" class="btn btn-default" v-on:click="randomData">
Go
</button>
<wj-flex-chart :itemsSource="data" chartType="Scatter" bindingX="x" :initialized="initializeChart">
<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 binding="y" :order="order" :minX="trendlineMinX" :maxX="trendlineMaxX"
:style="{ stroke: 'darkred', strokeWidth: 3 }" :visibility="'Hidden'"></wj-flex-chart-trend-line>
</wj-flex-chart>
</div>
</div>
</template>
<script setup>
import { getData } from "./data";
import * as wjChart from "@mescius/wijmo.chart";
import { ref, onMounted } from "vue";
const data = ref(getData());
const comboData = ref("Linear,Exponential,Logarithmic,Power,Fourier,Polynomial,MinX,MinY,MaxX,MaxY,AverageX,AverageY".split(","));
const order = ref(2);
const trendlineMinX = ref(0);
const trendlineMaxX = ref(0);
const eqEle = ref(null);
const combo = ref(null);
const orderIpt = ref(null);
const theChart = ref(null);
const trendLine = ref(null);
onMounted(function () {
eqEle.value = document.querySelector("#equation");
reset(combo.value.selectedValue);
});
function initializeInput(flex) {
orderIpt.value = flex;
}
function initializeCombo(flex) {
combo.value = flex;
}
function initializeChart(flex) {
theChart.value = flex;
trendLine.value = flex.series[1];
updateTrendLineRange();
}
function orderChanged(s) {
if (s.value >= s.min && s.value <= s.max) {
order.value = s.value;
updateTrendLineRange();
showEquation();
}
}
function updateTrendLineRange() {
if (!theChart.value) return;
let data = theChart.value.itemsSource;
let xValues = data.map((item) => item.x);
let minX = Math.min(...xValues);
let maxX = Math.max(...xValues);
let range = maxX - minX;
trendlineMinX.value = minX - range * 0.1; // 10% of range below minX
trendlineMaxX.value = maxX + range * 0.3; // 30% of range above maxX
}
function showEquation() {
if (eqEle.value) {
eqEle.value.innerHTML = "";
setTimeout(() => (eqEle.value.innerHTML = trendLine.value.getEquation()), 100);
}
}
function randomData() {
data.value = getData();
updateTrendLineRange();
showEquation();
}
function textChanged(s) {
reset(s.text);
}
function reset(text) {
let trndLine = trendLine.value;
if (!trndLine) {
return;
}
trndLine.name = text;
if (text) {
// show trendline
trndLine.fitType = text;
trndLine.visibility = wjChart.SeriesVisibility.Visible;
} else {
// hide trendline
trndLine.visibility = wjChart.SeriesVisibility.Hidden;
}
switch (text) { // enable/disable order input
case "Polynomial":
case "Fourier":
orderIpt.value.isDisabled = false;
break;
default:
orderIpt.value.isDisabled = true;
break;
}
updateTrendLineRange();
showEquation();
}
</script>
<style>
.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;
}
</style>
<!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">
<!-- 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() {
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;
}
(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": "npm:@mescius/wijmo.vue2.chart.annotation/index.js",
"@mescius/wijmo.vue2.chart.finance.analytics": "npm:@mescius/wijmo.vue2.chart.finance.analytics/index.js",
"@mescius/wijmo.vue2.chart.finance": "npm:@mescius/wijmo.vue2.chart.finance/index.js",
"@mescius/wijmo.vue2.chart.hierarchical": "npm:@mescius/wijmo.vue2.chart.hierarchical/index.js",
"@mescius/wijmo.vue2.chart.interaction": "npm:@mescius/wijmo.vue2.chart.interaction/index.js",
"@mescius/wijmo.vue2.chart.radar": "npm:@mescius/wijmo.vue2.chart.radar/index.js",
'@mescius/wijmo.vue2.chart.map': 'npm:@mescius/wijmo.vue2.chart.map/index.js',
"@mescius/wijmo.vue2.chart": "npm:@mescius/wijmo.vue2.chart/index.js",
"@mescius/wijmo.vue2.core": "npm:@mescius/wijmo.vue2.core/index.js",
"@mescius/wijmo.vue2.gauge": "npm:@mescius/wijmo.vue2.gauge/index.js",
"@mescius/wijmo.vue2.grid.detail": "npm:@mescius/wijmo.vue2.grid.detail/index.js",
"@mescius/wijmo.vue2.grid.filter": "npm:@mescius/wijmo.vue2.grid.filter/index.js",
"@mescius/wijmo.vue2.grid.grouppanel": "npm:@mescius/wijmo.vue2.grid.grouppanel/index.js",
'@mescius/wijmo.vue2.grid.search': 'npm:@mescius/wijmo.vue2.grid.search/index.js',
"@mescius/wijmo.vue2.grid.multirow": "npm:@mescius/wijmo.vue2.grid.multirow/index.js",
"@mescius/wijmo.vue2.grid.sheet": "npm:@mescius/wijmo.vue2.grid.sheet/index.js",
'@mescius/wijmo.vue2.grid.transposed': 'npm:@mescius/wijmo.vue2.grid.transposed/index.js',
'@mescius/wijmo.vue2.grid.transposedmultirow': 'npm:@mescius/wijmo.vue2.grid.transposedmultirow/index.js',
"@mescius/wijmo.vue2.grid": "npm:@mescius/wijmo.vue2.grid/index.js",
"@mescius/wijmo.vue2.input": "npm:@mescius/wijmo.vue2.input/index.js",
"@mescius/wijmo.vue2.olap": "npm:@mescius/wijmo.vue2.olap/index.js",
"@mescius/wijmo.vue2.viewer": "npm:@mescius/wijmo.vue2.viewer/index.js",
"@mescius/wijmo.vue2.nav": "npm:@mescius/wijmo.vue2.nav/index.js",
"@mescius/wijmo.vue2.base": "npm:@mescius/wijmo.vue2.base/index.js",
'@mescius/wijmo.vue2.barcode.common': 'npm:@mescius/wijmo.vue2.barcode.common/index.js',
'@mescius/wijmo.vue2.barcode.composite': 'npm:@mescius/wijmo.vue2.barcode.composite/index.js',
'@mescius/wijmo.vue2.barcode.specialized': 'npm:@mescius/wijmo.vue2.barcode.specialized/index.js',
'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css',
'jszip': 'npm:jszip/dist/jszip.js',
'css': 'npm:systemjs-plugin-css/css.js',
'vue': 'npm:vue/dist/vue.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/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);
