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Logarithmic Scale
Documentation
In this demo, a logarithmic axis is used to select a range within a set of rapidly-growing values.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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<template>
<div>
<DxChart
id="zoomed-chart"
:data-source="dataSource"
:resize-panes-on-zoom="true"
>
<DxSeries/>
<DxArgumentAxis
:value-margins-enabled="false"
:minor-tick-count="10"
:visual-range="range"
type="logarithmic"
>
<DxLabel format="exponential"/>
<DxGrid :visible="true"/>
<DxMinorGrid :visible="true"/>
</DxArgumentAxis>
<DxLegend :visible="false"/>
</DxChart>
<DxRangeSelector
id="range-selector"
:data-source="dataSource"
v-model:value="range"
>
<DxRsChart>
<DxRsSeries/>
</DxRsChart>
<DxScale
:min-range="1"
:minor-tick-count="10"
type="logarithmic"
>
<DxRsLabel format="exponential"/>
</DxScale>
<DxSliderMarker format="exponential"/>
<DxBehavior
:snap-to-ticks="false"
call-value-changed="onMoving"
/>
</DxRangeSelector>
</div>
</template>
<script>
import { dataSource } from './data.js';
import {
DxChart,
DxSeries,
DxArgumentAxis,
DxGrid,
DxMinorGrid,
DxLegend,
DxLabel
} from 'devextreme-vue/chart';
import {
DxRangeSelector,
DxScale,
DxSliderMarker,
DxBehavior,
DxLabel as DxRsLabel,
DxChart as DxRsChart,
DxSeries as DxRsSeries
} from 'devextreme-vue/range-selector';
export default {
components: {
DxChart,
DxSeries,
DxArgumentAxis,
DxGrid,
DxMinorGrid,
DxLegend,
DxLabel,
DxRangeSelector,
DxScale,
DxSliderMarker,
DxBehavior,
DxRsLabel,
DxRsChart,
DxRsSeries
},
data() {
return {
dataSource,
range: []
};
}
};
</script>
<style scoped>
#zoomed-chart{
height: 335px;
margin: 0 0 15px;
}
#range-selector {
height: 120px;
}
</style>
import { createApp } from 'vue';
import App from './App.vue';
createApp(App).mount('#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/20.2.5/css/dx.common.css" />
<link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/20.2.5/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>
const data = [];
for (var i = 0; i < 100; i++) {
data.push({
arg: Math.pow(10, i * 0.1),
val: Math.log(i + 1) / Math.log(0.5) + (Math.random() - 0.5) * (100 / (i + 1)) + 10 });
}
export const dataSource = data;
System.config({
transpiler: 'plugin-babel',
meta: {
'*.vue': {
loader: 'vue-loader'
},
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'vue': 'npm:vue@3.0.0/dist/vue.esm-browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@1.0.15/index.js',
'mitt': 'npm:mitt/dist/mitt.umd.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.5',
'devextreme-vue': 'npm:devextreme-vue@20.2.5',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.8/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.11/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.18/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.11/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.11/hooks/dist/hooks.js',
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js'
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});