Demos
Chart(Vue)
Line & Area Charts
Line with Gaps

Line with Gaps (Vue)

The FlexChart control allows you to display lines with gaps if there is no data to be displayed. This is done by setting FlexChart's interpolateNulls property.

Learn about FlexChart | Interpolate Nulls Documentation] | FlexChart API Reference

This example uses Vue.

JavaScript
Angular
Vue
React
app.vue
index.html
data.js
Copy to CodeMine
<template>
    <div class="container-fluid">
        <div class="form-check">
            <label for="interpolateNulls" class="form-check-label">interpolateNulls:</label>
            <input id="interpolateNulls" type="checkbox" class="form-check-input" :checked="interpolateNulls"
                @click="onCheckboxClick">
        </div>

        <wj-flex-chart :itemsSource="data" header="24 Hours CPU Utilization and Temperature" bindingX="time"
            chartType="Line" :interpolateNulls="interpolateNulls" :palette="palette">
            <wj-flex-chart-legend position="None"></wj-flex-chart-legend>
            <wj-flex-chart-series binding="utilization" name="Utilization(%)"></wj-flex-chart-series>
            <wj-flex-chart-series binding="temperature" name="Temperature(°C)"></wj-flex-chart-series>
            <wj-flex-chart-animation animationMode="Point"></wj-flex-chart-animation>
        </wj-flex-chart>
    </div>
</template>

<script setup>
import { isArray } from "@mescius/wijmo";
import { Palettes } from "@mescius/wijmo.chart";
import { getData } from "./data";
import { ref } from "vue";

const data = ref(getData());
const interpolateNulls = ref(false);
const palette = ref(null);

function onCheckboxClick(e) {
    interpolateNulls.value = e.target.checked;
}
</script>

<style>
label {
    margin-right: 3px;
}

body {
    margin-bottom: 24px;
}
</style>
<template> <div class="container-fluid"> <div class="form-check"> <label for="interpolateNulls" class="form-check-label">interpolateNulls:</label> <input id="interpolateNulls" type="checkbox" class="form-check-input" :checked="interpolateNulls" @click="onCheckboxClick"> </div> <wj-flex-chart :itemsSource="data" header="24 Hours CPU Utilization and Temperature" bindingX="time" chartType="Line" :interpolateNulls="interpolateNulls" :palette="palette"> <wj-flex-chart-legend position="None"></wj-flex-chart-legend> <wj-flex-chart-series binding="utilization" name="Utilization(%)"></wj-flex-chart-series> <wj-flex-chart-series binding="temperature" name="Temperature(°C)"></wj-flex-chart-series> <wj-flex-chart-animation animationMode="Point"></wj-flex-chart-animation> </wj-flex-chart> </div> </template> <script setup> import { isArray } from "@mescius/wijmo"; import { Palettes } from "@mescius/wijmo.chart"; import { getData } from "./data"; import { ref } from "vue"; const data = ref(getData()); const interpolateNulls = ref(false); const palette = ref(null); function onCheckboxClick(e) { interpolateNulls.value = e.target.checked; } </script> <style> label { margin-right: 3px; } 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 Line with Gaps</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>
// The Utilization and Temperature of CPU. export function getData() { return [ { time: '1:00', utilization: 26, temperature: 55 }, { time: '2:00', utilization: 36, temperature: 57 }, { time: '3:00', utilization: 74, temperature: 60 }, { time: '4:00', utilization: 23, temperature: 46 }, { time: '5:00', utilization: 13, temperature: 44 }, { time: '6:00', utilization: 64, temperature: 56 }, { time: '7:00', utilization: 34, temperature: 50 }, { time: '8:00', utilization: 67, temperature: 55 }, { time: '9:00', utilization: 72, temperature: 60 }, { time: '10:00', utilization: 23, temperature: 54 }, { time: '11:00', utilization: 100, temperature: 78 }, { time: '12:00', utilization: 100, temperature: 87 }, { time: '13:00', utilization: 100, temperature: 94 }, { time: '14:00', utilization: null, temperature: null }, { time: '15:00', utilization: 95, temperature: 87 }, { time: '16:00', utilization: 80, temperature: 84 }, { time: '17:00', utilization: 53, temperature: 76 }, { time: '18:00', utilization: 26, temperature: 58 }, { time: '19:00', utilization: 42, temperature: 53 }, { time: '20:00', utilization: 36, temperature: 62 }, { time: '21:00', utilization: 34, temperature: 53 }, { time: '22:00', utilization: 63, temperature: 61 }, { time: '23:00', utilization: 53, temperature: 57 }, { time: '24:00', utilization: 54, temperature: 47 } ]; }
(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);