<template>
<div class="container-fluid">
<div id="plotSelection"></div>
<wj-flex-chart chartType="Scatter" bindingX="x" :initialized="chartInitialized" :rendered="chartRendered">
<wj-flex-chart-axis wjProperty="axisY" :axisLine=true>
</wj-flex-chart-axis>
<wj-flex-chart-legend position="None">
</wj-flex-chart-legend>
<wj-flex-chart-series name="Experiment 1" :itemsSource="series1" bindingX="x" binding="y">
</wj-flex-chart-series>
<wj-flex-chart-series name="Experiment 2" :itemsSource="series2" bindingX="x" binding="y">
</wj-flex-chart-series>
<wj-flex-chart-series name="Experiment 3" :itemsSource="series3" bindingX="x" binding="y">
</wj-flex-chart-series>
</wj-flex-chart>
</div>
</template>
<script setup>
import * as wjCore from "@mescius/wijmo";
import { getData } from "./data";
import { ref } from "vue";
const series1 = ref(getData(50, 0, 3));
const series2 = ref(getData(40, 100, 12));
const series3 = ref(getData(30, -100, 24));
const rendered = ref(null);
const mouseDown = ref(null);
const mousePt = ref(null);
const isTouch = ref(null);
const selector = ref(null);
const selections = ref(null);
const start = ref(null);
const end = ref(null);
const offset = ref(null);
const items = ref(null);
const chart = ref(null);
const wjSelected = 'wj-state-selected';
function chartInitialized(sender) {
rendered.value = false;
mouseDown.value = false;
mousePt.value = null;
isTouch.value = false;
selector.value = null;
selections.value = [];
(start.value = null), (end.value = null);
offset.value = null;
items.value = [];
chart.value = sender;
}
function chartRendered(sender) {
if (!rendered.value) {
sender.hostElement.addEventListener("mousedown", $_chartMouseDown.bind(this));
sender.hostElement.addEventListener("mousemove", $_chartMouseMove.bind(this));
sender.hostElement.addEventListener("mouseup", $_chartMouseUp.bind(this));
sender.hostElement.addEventListener("mouseleave", $_chartMouseLeave.bind(this));
sender.hostElement.addEventListener("click", $_chartClick.bind(this));
window.addEventListener("touchstart", () => (isTouch.value = true), false);
//
// boolean flag - don't re-add event listener after resize
rendered.value = true;
//
selector.value = document.querySelector("#plotSelection");
sender.hostElement.appendChild(selector.value);
} else {
// *visually* restore selection after redraw (ex. resize browser, change chart type)
$_restoreSelection();
}
}
// helper for clearing chart selection
function $_clearSelection() {
selections.value.forEach((item) => {
let series = item.series,
el = series.getPlotElement(item.pointIndex);
//
if (el) {
wjCore.removeClass(el, wjSelected);
}
});
//
selections.value.length = 0;
}
// helper for adding chart selection
function $_addSelection(ht) {
wjCore.addClass(ht.series.getPlotElement(ht.pointIndex), wjSelected);
selections.value.push({
series: ht.series,
pointIndex: ht.pointIndex,
});
}
// helper for removing chart selection
function $_removeSelection(ht) {
let items = selections.value.filter((item) => item.series === ht.series && item.pointIndex === ht.pointIndex),
idx = items && items.length > 0 ? selections.value.indexOf(items[0]) : -1;
//
if (idx >= 0) {
selections.value.splice(idx, 1);
wjCore.removeClass(ht.series.getPlotElement(ht.pointIndex), wjSelected);
}
}
// finds selected plot elements after rendering and applies CSS to visually represent selection
function $_restoreSelection() {
selections.value.forEach((item) => {
let series = item.series,
el = series.getPlotElement(item.pointIndex);
//
if (el) {
wjCore.addClass(el, wjSelected);
}
});
}
// helper to hide the selector
function $_hideSelector() {
wjCore.setCss(selector.value, {
visibility: "hidden",
width: 0,
height: 0,
left: 0,
top: 0,
});
}
// selects plot elements within drawn rectangle
function $_selectWithinRect(rect) {
if (!rect || !chart.value) {
return;
}
//
chart.value.series.forEach((item) => {
let pointCount = item._getLength();
//
for (let j = 0; j < pointCount; j++) {
let el = item.getPlotElement(j);
//
if ($_elementInBounds(el, rect)) {
$_addSelection({
series: item,
pointIndex: j,
});
}
}
});
}
// helper to determine if plot element is within the bounds of the drawn rectangle
function $_elementInBounds(el, rect) {
let box = el.getBoundingClientRect();
return !(box.left > rect.right || box.right < rect.left || box.top > rect.bottom || box.bottom < rect.top);
}
// clear selection for button click
function $_clear() {
$_clearSelection();
// update length for view
items.value.length = 0;
}
function $_chartClick(e) {
if (mouseDown.value && !isTouch.value) {
isTouch.value = false;
return;
}
//
let p = wjCore.mouseToPage(e);
if (mousePt.value.x !== p.x || mousePt.value.y !== p.y) {
return;
}
//
let element = e.target,
ht = chart.value.hitTest(e),
selected = false,
chartType = chart.value.chartType;
//
selected = selections.value.some((item) => {
return item.series === ht.series && item.pointIndex === ht.pointIndex;
});
//
if (ht && ht.series && !selected && ((ht.distance <= 0 && (chartType == 0 || chartType == 1)) || ht.distance <= 15) && isTouch.value) {
// remove selection
if (wjCore.hasClass(element, wjSelected)) {
$_removeSelection(ht);
} else {
// add selection
$_addSelection(ht);
}
} else if (selected && ((ht.distance <= 0 && (chartType == 0 || chartType == 1)) || ht.distance <= 15) && isTouch.value) {
$_removeSelection(ht);
} else {
$_clearSelection();
}
//
isTouch.value = false;
// update length for view
items.value.length = 0;
items.value.push.apply(items.value, selections.value);
}
function $_chartMouseDown(e) {
mousePt.value = wjCore.mouseToPage(e);
mouseDown.value = true;
e.preventDefault();
}
function $_chartMouseUp(e) {
if (start.value != null) {
start.value = null;
}
//
if (end.value != null) {
let host = chart.value.hostElement;
offset.value = wjCore.getElementRect(host);
let style = host.getAttribute("style");
offset.value.left = offset.value.left + parseInt(style ? style["padding-left"].replace("px", "") : 0);
offset.value.top = offset.value.top + parseInt(style ? style["padding-top"].replace("px", "") : 0);
//
end.value = start.value = null;
//
$_clear();
$_selectWithinRect(selector.value.getBoundingClientRect());
//
// update length for view
items.value.length = 0;
items.value.push.apply(items.value, selections.value);
//
e.preventDefault();
}
//
$_hideSelector();
mouseDown.value = false;
}
function $_chartMouseMove(e) {
let p = wjCore.mouseToPage(e);
if (!mouseDown.value || (mousePt.value.x == p.x && mousePt.value.y == p.y)) {
return;
}
//
let pt = e instanceof MouseEvent ? new wjCore.Point(e.pageX, e.pageY) : new wjCore.Point(e.changedTouches[0].pageX, e.changedTouches[0].pageY);
//
if (start.value != null) {
end.value = pt;
//
// update selector rectangle
let w = pt.x - start.value.x;
let h = pt.y - start.value.y;
//
if (w >= 0) {
wjCore.setCss(selector.value, {
left: start.value.x - offset.value.left,
width: w,
});
} else {
wjCore.setCss(selector.value, {
left: pt.x - offset.value.left,
width: -w,
});
}
//
if (h >= 0) {
wjCore.setCss(selector.value, {
top: start.value.y - offset.value.top,
height: h,
});
} else {
wjCore.setCss(selector.value, {
top: pt.y - offset.value.top,
height: -h,
});
}
} else {
wjCore.setCss(selector.value, {
visibility: "visible",
});
offset.value = wjCore.getElementRect(selector.value);
//
start.value = pt;
}
//
e.preventDefault();
}
function $_chartMouseLeave(e) {
if (start.value) {
start.value = end.value = null;
mouseDown.value = false;
$_hideSelector();
}
}
</script>
<style>
.container-fluid .wj-flexchart {
height: 600px;
width: 600px;
margin: 10px 0;
}
body {
margin-bottom: 24pt;
}
#plotSelection {
background-color: rgba(85, 85, 85, 0.05);
border: 2px dashed #808080;
position: absolute;
display: block;
left: 0;
top: 0;
pointer-events: none;
visibility: hidden;
}
.container-fluid .wj-flexchart .wj-state-selected {
stroke-width: 20px;
stroke-dasharray: none;
}
</style>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>MESCIUS Wijmo FlexChart Select Box</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(cnt, a, b) {
let arr = [],
x = -5 * cnt / 2;
//
for (let i = 0; i < cnt; i++) {
let rnd = Math.random() * cnt - cnt / 2;
//
arr.push({
x: x,
y: a + x * (b + rnd) + rnd
});
//
x += .5 + Math.random() * 10;
}
//
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);
