Update Linear Gauge Data at Runtime
Documentation
This demo illustrates data binding in the LinearGauge widget. The bound data changes when a user selects a new location in the City drop-down menu.
Feel free to share demo-related thoughts here.
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If you have technical questions, please create a support ticket in the DevExpress Support Center.
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<template>
<div>
<div class="long-title">
<h3>Weather Indicators</h3>
</div>
<div id="gauge-demo">
<DxLinearGauge
id="temperatureGauge"
:value="value.data.temperature"
class="gauge-element"
>
<DxTitle
text="Temperature (°C)"
>
<DxFont
:size="16"
/>
</DxTitle>
<DxGeometry
orientation="vertical"
/>
<DxScale
:start-value="-40"
:end-value="40"
:tick-interval="40"
/>
<DxRangeContainer
background-color="none"
>
<DxRange
:start-value="-40"
:end-value="0"
color="#679EC5"
/>
<DxRange
:start-value="0"
:end-value="40"
/>
</DxRangeContainer>
</DxLinearGauge>
<DxLinearGauge
id="humidityGauge"
:value="value.data.humidity"
class="gauge-element"
>
<DxTitle
text="Humidity (%)"
>
<DxFont
:size="16"
/>
</DxTitle>
<DxGeometry
orientation="vertical"
/>
<DxScale
:start-value="0"
:end-value="100"
:tick-interval="10"
/>
<DxRangeContainer
background-color="#CACACA"
/>
<DxValueIndicator
type="rhombus"
color="#A4DDED"
/>
</DxLinearGauge>
<DxLinearGauge
id="pressureGauge"
:value="value.data.pressure"
class="gauge-element"
>
<DxTitle
text="Barometric Pressure (mb)"
>
<DxFont
:size="16"
/>
</DxTitle>
<DxGeometry
orientation="vertical"
/>
<DxScale
:start-value="900"
:end-value="1100"
:custom-ticks="customTicks"
>
<DxLabel
:format="pressureLabelFormat"
/>
</DxScale>
<DxRangeContainer>
<DxRange
:start-value="900"
:end-value="1000"
color="#679EC5"
/>
<DxRange
:start-value="1000"
:end-value="1020"
color="#A6C567"
/>
<DxRange
:start-value="1020"
:end-value="1100"
color="#E18E92"
/>
</DxRangeContainer>
<DxValueIndicator
type="circle"
color="#E3A857"
/>
</DxLinearGauge>
</div>
<DxSelectBox
id="selectbox"
:data-source="cities"
:value.sync="value"
display-expr="name"
/>
</div>
</template>
<script>
import { cities } from './data.js';
import { DxLinearGauge, DxTitle, DxFont, DxGeometry, DxScale, DxRangeContainer, DxRange, DxValueIndicator, DxLabel } from 'devextreme-vue/linear-gauge';
import { DxSelectBox } from 'devextreme-vue/select-box';
export default {
components: {
DxLinearGauge, DxTitle, DxFont, DxGeometry, DxScale, DxRangeContainer, DxRange, DxValueIndicator, DxLabel,
DxSelectBox
},
data() {
return {
cities: cities,
value: cities[0],
customTicks: [900, 1000, 1020, 1100],
pressureLabelFormat: {
type: 'decimal'
}
};
}
};
</script>
<style scoped>
#gauge-demo {
width: 90%;
margin: 0 auto
}
#gauge-demo .gauge-element {
height: 400px;
width: 33%;
float: left;
}
.dx-selectbox {
margin: 10px auto 0;
width: 200px;
}
#gauge-demo::after{
content: ".";
display: block;
clear: both;
visibility: hidden;
line-height: 0;
height: 0;
}
.long-title h3 {
font-weight: 200;
font-size: 28px;
text-align: center;
margin-bottom: 20px;
}
</style>
import Vue from 'vue';
import App from './App.vue';
new Vue({
el: '#app',
components: { App },
template: '<App/>'
});
<!DOCTYPE html>
<html>
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.8/css/dx.common.css" />
<link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/20.1.8/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import('./index.js');
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app">
</div>
</div>
</body>
</html>
export const cities = [{
name: 'London',
id: '1',
data: {
temperature: 10,
humidity: 81,
pressure: 1002.1
}
}, {
name: 'Berlin',
id: '2',
data: {
temperature: 14,
humidity: 58,
pressure: 1008.5
}
}, {
name: 'New York',
id: '3',
data: {
temperature: 3,
humidity: 89,
pressure: 1016.2
}
}, {
name: 'Moscow',
id: '4',
data: {
temperature: 2,
humidity: 51,
pressure: 1016.5
}
}, {
name: 'Bangkok',
id: '5',
data: {
temperature: 37,
humidity: 39,
pressure: 1007.0
}
}];
System.config({
transpiler: 'plugin-babel',
meta: {
'*.vue': {
loader: 'vue-loader'
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'vue': 'npm:vue@2.6.3/dist/vue.esm.browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@latest/index.js',
'devextreme': 'npm:devextreme@20.1',
'devextreme-vue': 'npm:devextreme-vue@20.1',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram@1.0.17',
'devexpress-gantt': 'npm:devexpress-gantt@1.0.10',
'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js'
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});