<dx-tree-map
id="treemap"
[dataSource]="getPopulationsByAge"
title="Population by Age Groups"
[layoutAlgorithm]="selectbox.value === 'custom' ? customAlgorithm : selectbox.value">
<dxo-colorizer
type="discrete"
[colorizeGroups]="true"></dxo-colorizer>
<dxo-tooltip
[enabled]="true"
format="thousands"
[customizeTooltip]="customizeTooltip"></dxo-tooltip>
</dx-tree-map>
<div class="options">
<div class="caption">Options</div>
<div class="option">
<span>Tiling Algorithm</span>
<dx-select-box
#selectbox
[items]="algorithms"
[width]="200"
[value]="algorithms[2]">
</dx-select-box>
</div>
</div>
import { NgModule, Component, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxTreeMapModule, DxSelectBoxModule } from 'devextreme-angular';
import { PopulationByAge, Service } from './app.service';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
providers: [Service],
preserveWhitespaces: true
})
export class AppComponent {
getPopulationsByAge: PopulationByAge[];
algorithms = ["sliceAndDice", "squarified", "strip", "custom"];
constructor(service: Service) {
this.getPopulationsByAge = service.getPopulationsByAge();
}
customizeTooltip(arg) {
var data = arg.node.data,
parentData = arg.node.getParent().data,
result = "";
if (arg.node.isLeaf()) {
result = "<span class='country'>" + parentData.name + "</span><br />" +
data.name + "<br />" + arg.valueText + " (" +
(100 * data.value/parentData.total).toFixed(1) + "%)";
} else {
result = "<span class='country'>" + data.name + "</span>";
}
return {
text: result
};
}
customAlgorithm(arg) {
var side = 0,
totalRect = arg.rect.slice(),
totalSum = arg.sum;
arg.items.forEach(function (item) {
var size = Math.round((totalRect[side + 2] -
totalRect[side]) * item.value / totalSum),
pos,
rect = totalRect.slice();
totalSum -= item.value;
rect[side + 2] = totalRect[side] = totalRect[side] + size;
item.rect = rect;
side = 1 - side;
});
}
}
@NgModule({
imports: [
BrowserModule,
DxTreeMapModule,
DxSelectBoxModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #treemap {
height: 460px;
}
::ng-deep .country {
font-weight: 500;
}
::ng-deep .options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
margin-top: 20px;
}
::ng-deep .option {
margin-top: 10px;
}
::ng-deep .caption {
font-size: 18px;
font-weight: 500;
}
::ng-deep .option > span {
margin-right: 10px;
}
::ng-deep .option > .dx-widget {
display: inline-block;
vertical-align: middle;
}
import { Injectable } from '@angular/core';
export interface PopulationByAge {
name: string;
total: number;
items: any[];
}
let populationsByAge: PopulationByAge[] = [{
"name": "Brazil",
"total": 200050486,
"items": [{
"name": "Age 0-14",
"value": 48058462
}, {
"name": "Age 15-44",
"value": 96036995
}, {
"name": "Age 45-64",
"value": 40715296
}, {
"name": "Age 65+",
"value": 15239733
}]
}, {
"name": "Japan",
"total": 126345237,
"items": [{
"name": "Age 0-14",
"value": 16593766
}, {
"name": "Age 15-44",
"value": 45455276
}, {
"name": "Age 45-64",
"value": 32845790
}, {
"name": "Age 65+",
"value": 31450405
}]
}, {
"name": "United States",
"total": 318497627,
"items": [{
"name": "Age 0-14",
"value": 63968935
}, {
"name": "Age 15-44",
"value": 127217843
}, {
"name": "Age 45-64",
"value": 83145484
}, {
"name": "Age 65+",
"value": 44165365
}]
}];
@Injectable()
export class Service {
getPopulationsByAge() {
return populationsByAge;
}
}
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular and DevExtreme here:
// https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/
System.config({
transpiler: 'ts',
typescriptOptions: {
module: "system",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
},
'devextreme/localization.js': {
"esModule": true
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.5.3/lib/typescript.js',
'@angular': 'npm:@angular',
'tslib': 'npm:tslib@2.0.3/tslib.js',
'rxjs': 'npm:rxjs@6.3.3',
'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@20.2.4',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.7/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.5',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.8',
'devextreme-angular': 'npm:devextreme-angular@20.2.4',
'preact': 'npm:preact@10.5.7/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.7/hooks/dist/hooks.js'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
packageConfigPaths: [
"npm:@angular/*/package.json",
"npm:@angular/common/*/package.json",
"npm:rxjs/package.json",
"npm:rxjs/operators/package.json",
"npm:devextreme-angular/*/package.json",
"npm:devextreme-angular/ui/*/package.json",
"npm:devextreme-angular/package.json",
"npm:devexpress-diagram/package.json",
"npm:devexpress-gantt/package.json",
]
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<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/20.2.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.10.2/dist/zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script src="config.js"></script>
<script>
System.import('app').catch(console.error.bind(console));
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>