getBoundingRect()
Gets the parameters of the label's minimum bounding rectangle (MBR).
hide(holdInvisible)
Hides the point label and keeps it invisible until the show() method is called.
shift(x, y)
The origin is at the upper-left corner of the Chart. The coordinates are positive numbers that specify the distance between the origin and the label.
The following example customizes a Bar Chart. The code moves the label to the top of the corresponding bar.
jQuery
$(() => { $('#chart').dxChart({ // ... series: { // ... type: 'bar', label: { visible: true, } }, onDrawn: function(e) { const point = e.component.getSeriesByPos(0).getPointByPos(5); const label = point.getLabel(); const rect = point.getBoundingRect(); const labelRect = label.getBoundingRect(); label.shift(rect.x + rect.width/2 - labelRect.width/2, rect.y - labelRect.height*1.5); } }); });
Angular
<dx-chart ... (onDrawn)="moveLabel($event)" > <dxi-series ... type="bar" > <dxo-label ... [visible]="true" > </dxo-label> </dxi-series> </dx-chart>
export class AppComponent { // ... moveLabel (e) { const point = e.component.getSeriesByPos(0).getPointByPos(5); const label = point.getLabel(); const rect = point.getBoundingRect(); const labelRect = label.getBoundingRect(); label.shift(rect.x + rect.width/2 - labelRect.width/2, rect.y - labelRect.height*1.5); } }
Vue
<template> <DxChart ... @drawn="moveLabel" > <DxSeries ... type="bar" > <DxLabel :visible="true"/> </DxSeries> </DxChart> </template> <script> import { DxChart, DxSeries, DxLabel } from 'devextreme-vue/chart'; export default { components: { DxChart, DxSeries, DxLabel }, data() { return { dataSource, }; }, methods: { moveLabel (e) { const point = e.component.getSeriesByPos(0).getPointByPos(5); const label = point.getLabel(); const rect = point.getBoundingRect(); const labelRect = label.getBoundingRect(); label.shift(rect.x + rect.width/2 - labelRect.width/2, rect.y - labelRect.height*1.5); } } }; </script>
React
import React from 'react'; import { Chart, Series, Label } from 'devextreme-react/chart'; const moveLabel = (e) => { const point = e.component.getSeriesByPos(0).getPointByPos(5); const label = point.getLabel(); const rect = point.getBoundingRect(); const labelRect = label.getBoundingRect(); label.shift(rect.x + rect.width/2 - labelRect.width/2, rect.y - labelRect.height*1.5); }; function App() { return ( <Chart ... onDrawn={moveLabel} > <Series ... type="bar" > <Label visible={true} /> </Series> </Chart> ); } export default App;
show(holdVisible)
Shows the point label and keeps it visible until the hide() method is called.
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