Radial Gauges with Needle Pointers (Vue)

By default, Wijmo's radial gauges use a colored sector and a text element to indicate the gauge's current value. This results in a clean and easy-to read look.

If you prefer a more traditional needle-style pointer, use the needleShape and needleLength properties to select a needle pointer which can be styled with CSS.

You can also use the needleElement property to use custom SVG elements as needles, and createNeedleElement method to create custom needle shapes.

This example uses Vue.

<template> <div class="container-fluid app"> <p> Select one of the built-in needle shapes using the <b>needleShape</b> property: </p> <div class="row"> <div class="col-xs-4"> <label for="needle-shape">needleShape</label> <wj-combo-box :itemsSource=this.needleShapes :text=this.needleShape :textChanged="optionChanged.bind(this, 'needleShape', 'text')" /> <br /> <label for="needle-length">needleLength</label> <wj-combo-box :itemsSource=this.needleLengths :text=this.needleLength :textChanged="optionChanged.bind(this, 'needleLength', 'text')" /> <br /> <br /> <label for="start">startAngle</label> <wj-combo-box :itemsSource=this.startAngles :selectedItem=this.startAngle :textChanged="optionChanged.bind(this, 'startAngle', 'selectedValue')" /> <br /> <label for="sweep">sweepAngle</label> <wj-combo-box :itemsSource=this.sweepAngles :selectedItem=this.sweepAngle :textChanged="optionChanged.bind(this, 'sweepAngle', 'selectedValue')" /> <br /> <label for="spacing">tickSpacing</label> <wj-combo-box :itemsSource=this.tickSpacings :selectedItem=this.tickSpacing :textChanged="optionChanged.bind(this, 'tickSpacing', 'selectedValue')" /> </div> <div class="col-xs-4"> <wj-radial-gauge :min=0 :max=500 :value=100 :showText="this.needleShape == 'Outer' || this.needleShape == 'None' ? 'Value' : 'None'" :startAngle=this.startAngle :sweepAngle=this.sweepAngle :tickSpacing=this.tickSpacing :needleShape=this.needleShape :needleLength=this.needleLength :showTicks=true :showTickText=true :thickness=.2 :isReadOnly=false /> </div> </div> <p> Or create custom needle shapes with the <b>createNeedleElement</b> method: </p> <div class="row"> <div class="col-xs-4"> <wj-radial-gauge :thickness=.2 showText="None" :min=0 :max=500 :value=100 :startAngle=-45 :sweepAngle=270 :showTicks=true :showTickText=true :tickSpacing=50 :isReadOnly=false needleLength="Inner" :needleElement="createNeedleElement([{ x: -35, y: 0 }, { x: -35, y: 35 }, { x: -30, y: 35 }, { x: -20, y: 5 }, { x: 60, y: 5 }, { x: 100, y: 0 }], 15)" /> </div> <div class="col-xs-4"> <wj-radial-gauge :thickness=.2 showText="None" :min=0 :max=500 :value=100 :startAngle=-45 :sweepAngle=270 :showTicks=true :showTickText=true :tickSpacing=50 :isReadOnly=false needleLength="Inner" :needleElement="createNeedleElement([{ x: -10, y: 0 }, { x: -10, y: 12 }, { x: 0, y: 20 }, { x: 35, y: 20 }, { x: 50, y: 12 }, { x: 10, y: 12 }, { x: 10, y: 5 }, { x: 80, y: 5 }, { x: 100, y: 0 }])" /> </div> <div class="col-xs-4"> <wj-radial-gauge :thickness=.2 showText="Value" :min=0 :max=500 :value=100 :startAngle=-45 :sweepAngle=270 :showTicks=true :showTickText=true :tickSpacing=50 :isReadOnly=false needleLength="Inner" :needleElement="createNeedleElement([{ x: 40, y: 15 }, { x: 90, y: 0 }])" /> </div> </div> </div> </template> <script> import "bootstrap.css"; import "@mescius/wijmo.styles/wijmo.css"; import 'src/app.css'; import { createApp } from "vue" import { registerInput } from "@mescius/wijmo.vue2.input"; import { registerGauge } from "@mescius/wijmo.vue2.gauge"; import { RadialGauge } from "@mescius/wijmo.gauge"; let App = { name: "app", data: function () { return { startAngles: [-90, -45, 0, 45, 90], startAngle: -45, sweepAngles: [-360, -270, -180, -90, 90, 180, 270, 360], sweepAngle: 270, tickSpacings: [20, 50, 100, 200, 250], tickSpacing: 50, needleShapes: 'None,Triangle,Diamond,Hexagon,Rectangle,Arrow,WideArrow,Pointer,WidePointer,Outer'.split(','), needleShape: 'Pointer', needleLengths: 'Outer,Middle,Inner'.split(','), needleLength: 'Middle' }; }, methods: { optionChanged: function (option, comboProp, s) { this[option] = s[comboProp]; }, createNeedleElement: function (arr, innerRadius, outerRadius) { return RadialGauge.createNeedleElement(arr, innerRadius, outerRadius); } } }; const app = createApp(App); // register all components and directives from Wijmo modules registerInput(app); registerGauge(app); app.mount('#app'); </script>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Radial Gauges with Needle Pointers</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- 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> System.import('./src/app.vue'); </script> </head> <body> <div id="app"> </div> </body> </html>
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