Legend in React Treemap component
24 Jan 202324 minutes to read
Legend is used to provide valuable information for interpreting what the TreeMap displays. The legends can be represented in various colors, shapes or other identifiers based on the data.
Position and alignment
Legend position is used to place legend in various positions. Based on the legend position, the legend item will be aligned. For example, if the position is top or bottom, the legend items are placed by rows. If the position is left or right, the legend items are placed by columns.
The following options are available to customize the legend position:
- Top
- Bottom
- Left
- Right
- Float
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
rangeColorValuePath='count'
legendSettings= {{
visible: true,
position: 'Top'
}}
leafItemSettings= {{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:3000,
color:'orange'
},
{
from:3000,
to:5000,
color:'green'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
rangeColorValuePath='count'
legendSettings= {{
visible: true,
position: 'Top'
}}
leafItemSettings= {{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:3000,
color:'orange'
},
{
from:3000,
to:5000,
color:'green'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Legend Alignment is used to align the legend items in specific location. The following options are available to customize the legend alignment:
- Near
- Center
- Far
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
rangeColorValuePath='count'
legendSettings= {{
visible: true,
alignment: 'Far'
}}
leafItemSettings= {{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:3000,
color:'orange'
},
{
from:3000,
to:5000,
color:'green'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
rangeColorValuePath='count'
legendSettings= {{
visible: true,
alignment: 'Far'
}}
leafItemSettings= {{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:3000,
color:'orange'
},
{
from:3000,
to:5000,
color:'green'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Legend mode
The TreeMap control supports two different types of legend rendering modes such as Default and Interactive.
Default mode
In default mode, the legends have symbols with legend labels that are used to identify the items in the TreeMap.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ Car:'Mustang', Brand:'Ford', count:232 },
{ Car:'EcoSport', Brand:'Ford', count:121 },
{ Car:'Swift', Brand:'Maruti', count:143 },
{ Car:'Baleno', Brand:'Maruti', count:454 },
{ Car:'Vitara Brezza', Brand:'Maruti', count:545 },
{ Car:'A3 Cabriolet', Brand:'Audi',count:123 },
{ car:'RS7 Sportback', Brand:'Audi', count:523 }
]}
weightValuePath= 'count'
equalColorValuePath='Brand'
legendSettings= {{
visible: true,
position:'Top',
border: {color:'black',width:2}
}}
leafItemSettings= {{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ Car:'Mustang', Brand:'Ford', count:232 },
{ Car:'EcoSport', Brand:'Ford', count:121 },
{ Car:'Swift', Brand:'Maruti', count:143 },
{ Car:'Baleno', Brand:'Maruti', count:454 },
{ Car:'Vitara Brezza', Brand:'Maruti', count:545 },
{ Car:'A3 Cabriolet', Brand:'Audi',count:123 },
{ car:'RS7 Sportback', Brand:'Audi', count:523 }
]}
weightValuePath= 'count'
equalColorValuePath='Brand'
legendSettings= {{
visible: true,
position:'Top',
border: {color:'black',width:2}
}}
leafItemSettings= {{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Interactive mode
The legends can be made interactive with an arrow mark that indicates exact range color in the legend when the mouse hovers on the TreeMap item. Enable this option by setting the mode property in the legendSettings to Interactive.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ Car:'Mustang', Brand:'Ford', count:232 },
{ Car:'EcoSport', Brand:'Ford', count:121 },
{ Car:'Swift', Brand:'Maruti', count:143 },
{ Car:'Baleno', Brand:'Maruti', count:454 },
{ Car:'Vitara Brezza', Brand:'Maruti', count:545 },
{ Car:'A3 Cabriolet', Brand:'Audi',count:123 },
{ car:'RS7 Sportback', Brand:'Audi', count:523 }
]}
weightValuePath= 'count'
equalColorValuePath='Brand'
legendSettings= {{
visible: true,
mode:'Interactive',
position:'Top',
border: {color:'black',width:2}
}}
leafItemSettings= {{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ Car:'Mustang', Brand:'Ford', count:232 },
{ Car:'EcoSport', Brand:'Ford', count:121 },
{ Car:'Swift', Brand:'Maruti', count:143 },
{ Car:'Baleno', Brand:'Maruti', count:454 },
{ Car:'Vitara Brezza', Brand:'Maruti', count:545 },
{ Car:'A3 Cabriolet', Brand:'Audi',count:123 },
{ car:'RS7 Sportback', Brand:'Audi', count:523 }
]}
weightValuePath= 'count'
equalColorValuePath='Brand'
legendSettings= {{
visible: true,
mode:'Interactive',
position:'Top',
border: {color:'black',width:2}
}}
leafItemSettings= {{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Legend size
Customize the legend size by modifying the height and width properties in the legendSettings. It accepts values in both percentage and pixel.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ Car:'Mustang', Brand:'Ford', count:232 },
{ Car:'EcoSport', Brand:'Ford', count:121 },
{ Car:'Swift', Brand:'Maruti', count:143 },
{ Car:'Baleno', Brand:'Maruti', count:454 },
{ Car:'Vitara Brezza', Brand:'Maruti', count:545 },
{ Car:'A3 Cabriolet', Brand:'Audi',count:123 },
{ car:'RS7 Sportback', Brand:'Audi', count:523 }
]}
weightValuePath= 'count'
equalColorValuePath='Brand'
legendSettings= {{
visible: true,
height:'50px',
width:'200px',
position:'Top',
border: {color:'black',width:2}
}}
leafItemSettings= {{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ Car:'Mustang', Brand:'Ford', count:232 },
{ Car:'EcoSport', Brand:'Ford', count:121 },
{ Car:'Swift', Brand:'Maruti', count:143 },
{ Car:'Baleno', Brand:'Maruti', count:454 },
{ Car:'Vitara Brezza', Brand:'Maruti', count:545 },
{ Car:'A3 Cabriolet', Brand:'Audi',count:123 },
{ car:'RS7 Sportback', Brand:'Audi', count:523 }
]}
weightValuePath= 'count'
equalColorValuePath='Brand'
legendSettings= {{
visible: true,
height:'50px',
width:'200px',
position:'Top',
border: {color:'black',width:2}
}}
leafItemSettings= {{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Paging support
TreeMap support legend paging, if the legend items cannot be placed within the provided height and width of the legend.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ Car:'Mustang', Brand:'Ford', count:232 },
{ Car:'EcoSport', Brand:'Ford', count:121 },
{ Car:'Swift', Brand:'Maruti', count:143 },
{ Car:'Baleno', Brand:'Maruti', count:454 },
{ Car:'Vitara Brezza', Brand:'Maruti', count:545 },
{ Car:'A3 Cabriolet', Brand:'Audi',count:123 },
{ car:'RS7 Sportback', Brand:'Audi', count:523 }
]}
weightValuePath= 'count'
equalColorValuePath='Brand'
legendSettings= {{
visible: true,
height:'50px',
width:'100px',
border: {color:'black',width:2}
}}
leafItemSettings= {{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ Car:'Mustang', Brand:'Ford', count:232 },
{ Car:'EcoSport', Brand:'Ford', count:121 },
{ Car:'Swift', Brand:'Maruti', count:143 },
{ Car:'Baleno', Brand:'Maruti', count:454 },
{ Car:'Vitara Brezza', Brand:'Maruti', count:545 },
{ Car:'A3 Cabriolet', Brand:'Audi',count:123 },
{ car:'RS7 Sportback', Brand:'Audi', count:523 }
]}
weightValuePath= 'count'
equalColorValuePath='Brand'
legendSettings= {{
visible: true,
height:'50px',
width:'100px',
border: {color:'black',width:2}
}}
leafItemSettings= {{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Legend for items excluded from color mapping
Based on the mapping ranges in the data source, get the excluded ranges from the color mapping, and show the legend with the excluded range values that are bound to the specific legend.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
rangeColorValuePath='count'
legendSettings= {{
visible: true
}}
leafItemSettings= {{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:2500,
minOpacity:0.2,
maxOpacity:0.5,
color:'orange'
},
{
from:3000,
to:4000,
minOpacity:0.5,
maxOpacity:0.8,
color:'green'
},
{
color:'red'
}]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
rangeColorValuePath='count'
legendSettings= {{
visible: true
}}
leafItemSettings= {{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:2500,
minOpacity:0.2,
maxOpacity:0.5,
color:'orange'
},
{
from:3000,
to:4000,
minOpacity:0.5,
maxOpacity:0.8,
color:'green'
},
{
color:'red'
}]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Hide desired legend items
To enable or disable the desired legend item for each color mapping, set the showLegend property to true in the colorMapping.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
class App extends React.Component {
render() {
return (<TreeMapComponent id='treemap' dataSource={[
{ fruit: 'Apple', count: 5000 },
{ fruit: 'Mango', count: 3000 },
{ fruit: 'Orange', count: 2300 },
{ fruit: 'Banana', count: 500 },
{ fruit: 'Grape', count: 4300 },
{ fruit: 'Papaya', count: 1200 },
{ fruit: 'Melon', count: 4500 }
]} weightValuePath='count' rangeColorValuePath='count' legendSettings={{
visible: true
}} leafItemSettings={{
labelPath: 'fruit',
colorMapping: [
{
from: 500,
to: 2500,
color: 'orange',
showLegend: true
},
{
from: 3000,
to: 4000,
color: 'green',
showLegend: false
}
]
}}>
<Inject services={[TreeMapLegend]}/>
</TreeMapComponent>);
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000 },
{ fruit:'Mango', count:3000 },
{ fruit:'Orange', count:2300 },
{ fruit:'Banana', count:500 },
{ fruit:'Grape', count:4300 },
{ fruit:'Papaya', count:1200 },
{ fruit:'Melon', count:4500 }
]}
weightValuePath= 'count'
rangeColorValuePath='count'
legendSettings= {{
visible: true
}}
leafItemSettings= {{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:2500,
minOpacity:0.2,
maxOpacity:0.5,
color:'orange'
},
{
from:3000,
to:4000,
minOpacity:0.5,
maxOpacity:0.8,
color:'green'
},
{
color:'red'
}]
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Hide legend items based data source value
To enable or disable the legend visibility for each item through the data source, bind the appropriate data source field name to showLegendPath property in the legendSettings.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000, visibility: true , color: '#71B081' },
{ fruit:'Mango', count:3000, visibility: false, color: '#5A9A77' },
{ fruit:'Orange', count:2300, visibility: true, color: '#498770' },
{ fruit:'Banana', count:500, visibility: false, color: '#39776C' },
{ fruit:'Grape', count:4300, visibility: true, color: '#266665' },
{ fruit:'Papaya', count:1200, visibility: false, color: '#124F5E' }
]}
weightValuePath= 'count'
colorValuePath='color'
palette= {[]}
legendSettings= {{
visible: true,
showLegendPath: 'visibility'
}}
leafItemSettings= {{
labelPath: 'fruit',
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000, visibility: true , color: '#71B081' },
{ fruit:'Mango', count:3000, visibility: false, color: '#5A9A77' },
{ fruit:'Orange', count:2300, visibility: true, color: '#498770' },
{ fruit:'Banana', count:500, visibility: false, color: '#39776C' },
{ fruit:'Grape', count:4300, visibility: true, color: '#266665' },
{ fruit:'Papaya', count:1200, visibility: false, color: '#124F5E' }
]}
weightValuePath= 'count'
colorValuePath='color'
palette= {[]}
legendSettings= {{
visible: true,
showLegendPath: 'visibility'
}}
leafItemSettings= {{
labelPath: 'fruit',
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Bind legend item text from data source
To show the legend item text from the data source, bind the property name from data source to the valuePath property in the legendSettings.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000, visibility: true , color: '#71B081' },
{ fruit:'Mango', count:3000, visibility: false, color: '#5A9A77' },
{ fruit:'Orange', count:2300, visibility: true, color: '#498770' },
{ fruit:'Banana', count:500, visibility: false, color: '#39776C' },
{ fruit:'Grape', count:4300, visibility: true, color: '#266665' },
{ fruit:'Papaya', count:1200, visibility: false, color: '#124F5E' }
]}
weightValuePath= 'count'
colorValuePath='color'
palette= {[]}
legendSettings= {{
visible: true,
valuePath: 'fruit'
}}
leafItemSettings= {{
labelPath: 'fruit',
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000, visibility: true , color: '#71B081' },
{ fruit:'Mango', count:3000, visibility: false, color: '#5A9A77' },
{ fruit:'Orange', count:2300, visibility: true, color: '#498770' },
{ fruit:'Banana', count:500, visibility: false, color: '#39776C' },
{ fruit:'Grape', count:4300, visibility: true, color: '#266665' },
{ fruit:'Papaya', count:1200, visibility: false, color: '#124F5E' }
]}
weightValuePath= 'count'
colorValuePath='color'
palette= {[]}
legendSettings= {{
visible: true,
valuePath: 'fruit'
}}
leafItemSettings= {{
labelPath: 'fruit',
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);Hide duplicate legend items
To enable or disable the duplicate legend items, set the removeDuplicateLegend property to true in the legendSettings.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000, visibility: true , color: '#71B081' },
{ fruit:'Grape', count:3000, visibility: false, color: '#5A9A77' },
{ fruit:'Apple', count:2300, visibility: true, color: '#498770' },
{ fruit:'Banana', count:500, visibility: false, color: '#39776C' },
{ fruit:'Grape', count:4300, visibility: true, color: '#266665' },
{ fruit:'Papaya', count:1200, visibility: false, color: '#124F5E' }
]}
weightValuePath= 'count'
colorValuePath='color'
palette= {[]}
legendSettings= {{
visible: true,
valuePath: 'fruit',
removeDuplicateLegend: true
}}
leafItemSettings= {{
labelPath: 'fruit',
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent, Inject, TreeMapLegend } from '@syncfusion/ej2-react-treemap';
export function App() {
return ( <TreeMapComponent
dataSource={[
{ fruit:'Apple', count:5000, visibility: true , color: '#71B081' },
{ fruit:'Grape', count:3000, visibility: false, color: '#5A9A77' },
{ fruit:'Apple', count:2300, visibility: true, color: '#498770' },
{ fruit:'Banana', count:500, visibility: false, color: '#39776C' },
{ fruit:'Grape', count:4300, visibility: true, color: '#266665' },
{ fruit:'Papaya', count:1200, visibility: false, color: '#124F5E' }
]}
weightValuePath= 'count'
colorValuePath='color'
palette= {[]}
legendSettings= {{
visible: true,
valuePath: 'fruit',
removeDuplicateLegend: true
}}
leafItemSettings= {{
labelPath: 'fruit',
}}>
<Inject services={[TreeMapLegend]} />
</TreeMapComponent> );
}
const root = ReactDOM.createRoot(document.getElementById('container'));
root.render(<App />);