Color mapping is used to customize each group or item colors based on specified types of color mappings.
The following options are available to customize the group and leaf items in the tree map control.
Range color mapping is used to apply color to items by giving specific ranges in the dataSource. You should specify the datasource field in the [rangeColorValuePath] property.
The following code example shows applying range color mapping.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent } 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'
leafItemSettings={{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:3000,
color:'orange'
},
{
from:3000,
to:5000,
color:'green'
}
]
}}>
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));Equal color mapping is used to fill colors to each item by specifying equal value present in the datasource field that can be specified in the [equalColorValuePath] property.
The following code example shows applying equal color mapping.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent } from '@syncfusion/ej2-react-treemap';
class App extends React.Component {
render() {
return ( <TreeMapComponent id='treemap'
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'
leafItemSettings={{
labelPath: 'Car',
colorMapping:[
{
value:'Ford',
color:'green'
},
{
value:'Audi',
color:'red'
},
{
value:'Maruti',
color:'orange'
}
]
}}>
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));Desaturation color mapping is used to apply colors with opacity to items based on the given values for the [minOpacity] and [maxOpacity] properties in the tree map control.
The following code example shows applying desaturation color mapping.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent } 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'
leafItemSettings={{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:3000,
minOpacity:0.2,
maxOpacity:0.5,
color:'orange'
},
{
from:3000,
to:5000,
minOpacity:0.5,
maxOpacity:0.8,
color:'green'
}
]
}}>
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));Palette color mapping is used to fill the same color to each group or leaf node by given colors in the [palette] property in tree map control.
The following code example shows applying palette color mapping.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent } from '@syncfusion/ej2-react-treemap';
class App extends React.Component {
render() {
return ( <TreeMapComponent id='treemap'
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 }
]}
palette= {['red','green']}
weightValuePath='count'
leafItemSettings={{
labelPath: 'Car'
}}>
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));Multiple colors are used as gradient effect to specific shapes based on the ranges in datasource.
By using color API, you can set n number of colors.
The following code example shows how to use multiple colors.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent } 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'
leafItemSettings={{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:2500,
color:['orange','pink']
},
{
from:3000,
to:5000,
color:['green','red','blue']
}]
}}>
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));Based on the ranges in the data source, get the excluded ranges from color mapping, and then apply specific color to the items.
The following code example shows how to set the color for items excluded from color mapping.
import * as React from "react";
import * as ReactDOM from "react-dom";
import { TreeMapComponent } 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'
leafItemSettings={{
labelPath: 'fruit',
colorMapping:[
{
from:500,
to:2500,
color:'orange'
},
{
from:3000,
to:4000,
color:'green'
},
{
color:'red'
}]
}}>
</TreeMapComponent> );
}
}
ReactDOM.render(<App />, document.getElementById('treemap'));