Adding Drill Down using AngularJS
With FusionCharts, you can create unlimited levels of drill-down with a single data source. The parent chart contains all data — for the parent chart as well as all descendant (child, grandchild) charts. The links to all the descendant charts are defined in the parent chart.
You can drill-down to the descendant charts by simply clicking the data plot items on the parent chart. A descendant chart can either replace the parent chart with an option to drill-up, or it can open in a new window or frame.
Features of the FusionCharts JavaScript Class
Automatically creates and shows a detailed descendant chart when you click on the corresponding data plot item linked in the parent chart
Clones all chart configuration settings from the parent chart to create the descendant charts
Accepts specific properties for descendant charts when you configure them using the configureLink() function
Uses events to notify your code when a link is invoked, a link item is opened, or a link item is closed
Supports drill-down to an unlimited number of levels
Create drill-down charts
As an example, Let's consider a simple scenario of a parent chart with a single level of drill-down.
The parent chart is a column 2D chart that shows yearly sales of the top three juice flavors, for the last one year. When you click on the data plot for a particular flavor of juice, it drills down to show a pie 2D chart showing quarterly sales figures for that specific flavor.
The above chart looks like this when rendered:
{
"chart": {
"caption": "Top 3 Juice Flavors",
"subcaption": "Last year",
"xaxisname": "Flavor",
"yaxisname": "Amount (In USD)",
"numberprefix": "$",
"theme": "fusion",
"rotateValues": "0"
},
"data": [
{
"label": "Apple",
"value": "810000",
"link": "newchart-xml-apple"
},
{
"label": "Cranberry",
"value": "620000",
"link": "newchart-xml-cranberry"
},
{
"label": "Grapes",
"value": "350000",
"link": "newchart-xml-grapes"
}
],
"linkeddata": [
{
"id": "apple",
"linkedchart": {
"chart": {
"caption": "Apple Juice - Quarterly Sales",
"subcaption": "Last year",
"numberprefix": "$",
"theme": "fusion",
"rotateValues": "0",
"plottooltext": "$label, $dataValue, $percentValue"
},
"data": [
{
"label": "Q1",
"value": "157000"
},
{
"label": "Q2",
"value": "172000"
},
{
"label": "Q3",
"value": "206000"
},
{
"label": "Q4",
"value": "275000"
}
]
}
},
{
"id": "cranberry",
"linkedchart": {
"chart": {
"caption": "Cranberry Juice - Quarterly Sales",
"subcaption": "Last year",
"numberprefix": "$",
"theme": "fusion",
"plottooltext": "$label, $dataValue, $percentValue"
},
"data": [
{
"label": "Q1",
"value": "102000"
},
{
"label": "Q2",
"value": "142000"
},
{
"label": "Q3",
"value": "187000"
},
{
"label": "Q4",
"value": "189000"
}
]
}
},
{
"id": "grapes",
"linkedchart": {
"chart": {
"caption": "Grapes Juice - Quarterly Sales",
"subcaption": "Last year",
"numberprefix": "$",
"theme": "fusion",
"rotateValues": "0",
"plottooltext": "$label, $dataValue, $percentValue"
},
"data": [
{
"label": "Q1",
"value": "45000"
},
{
"label": "Q2",
"value": "72000"
},
{
"label": "Q3",
"value": "95000"
},
{
"label": "Q4",
"value": "108000"
}
]
}
}
]
}The code to render the above chart is given below:
// Require AngularJS
var angular = require('angular');
// Require FusionCharts
var FusionCharts = require('fusioncharts');
// Include angularjs-fusioncharts
require('angularjs-fusioncharts');
// Require Chart modules
var Charts = require('fusioncharts/fusioncharts.charts');
// Require Fusion theme
var FusionTheme = require('fusioncharts/themes/fusioncharts.theme.fusion');
// Initialize Charts with FusionCharts instance
Charts(FusionCharts);
// Initialize FusionTheme with FusionCharts instance
FusionTheme(FusionCharts);
var myApp = angular.module('myApp', ['ng-fusioncharts']);
myApp.controller('MyController', ['$scope', function($scope) {
var DataSource = {
"chart": {
"caption": "Top 3 Juice Flavors",
"subcaption": "Last year",
"xaxisname": "Flavor",
"yaxisname": "Amount (In USD)",
"numberprefix": "$",
"theme": "fusion",
"rotateValues": "0",
"id": "myChart"
},
"data": [{
"label": "Apple",
"value": "810000",
"link": "newchart-xml-apple"
},
{
"label": "Cranberry",
"value": "620000",
"link": "newchart-xml-cranberry"
},
{
"label": "Grapes",
"value": "350000",
"link": "newchart-xml-grapes"
}
],
"linkeddata": [{
"id": "apple",
"linkedchart": {
"chart": {
"caption": "Apple Juice - Quarterly Sales",
"subcaption": "Last year",
"numberprefix": "$",
"theme": "fusion",
"rotateValues": "0",
"plottooltext": "$label, $dataValue, $percentValue"
},
"data": [{
"label": "Q1",
"value": "157000"
},
{
"label": "Q2",
"value": "172000"
},
{
"label": "Q3",
"value": "206000"
},
{
"label": "Q4",
"value": "275000"
}
]
}
},
{
"id": "cranberry",
"linkedchart": {
"chart": {
"caption": "Cranberry Juice - Quarterly Sales",
"subcaption": "Last year",
"numberprefix": "$",
"theme": "fusion",
"plottooltext": "$label, $dataValue, $percentValue"
},
"data": [{
"label": "Q1",
"value": "102000"
},
{
"label": "Q2",
"value": "142000"
},
{
"label": "Q3",
"value": "187000"
},
{
"label": "Q4",
"value": "189000"
}
]
}
},
{
"id": "grapes",
"linkedchart": {
"chart": {
"caption": "Grapes Juice - Quarterly Sales",
"subcaption": "Last year",
"numberprefix": "$",
"theme": "fusion",
"rotateValues": "0",
"plottooltext": "$label, $dataValue, $percentValue"
},
"data": [{
"label": "Q1",
"value": "45000"
},
{
"label": "Q2",
"value": "72000"
},
{
"label": "Q3",
"value": "95000"
},
{
"label": "Q4",
"value": "108000"
}
]
}
}
]
};
$scope.myDataSource = DataSource;
$scope.events = {
renderComplete: function(e, a) {
e.sender.configureLink({
type: "pie2d",
renderAt: "myChart",
overlayButton: {
message: 'close',
fontColor: '880000',
bgColor: 'FFEEEE',
borderColor: '660000'
}
}, 0)
}
};
}Now, use the fusioncharts directive in a template. The HTML template is given below:
<div fusioncharts
width="700"
height="400"
type="column2d"
chart="{{attrs}}"
categories="{{categories}}"
dataset="{{dataset}}"
></div>The above chart has been rendered using the following steps:
Included the necessary libraries and components using
require. For example,angularjs-fusioncharts,fusioncharts, etc.Add the chart and the theme as dependencies to the core.
Stored the chart configuration in a JSON object. In the JSON object:
- The chart type has been set to
column2dfor the first chart. For Column 2D chart, the alias iscolumn2d. Once the data plots in the Column charts are clicked, the rendered chart is a Pie 2D chart (alias name:pie2d).Find the complete list of chart types with their respective alias here . - The width and height of the chart has been set in pixels.
- The
dataFormatis set as JSON. - Create the JSON/XML data for the parent chart. This is called the parent data source.
- Append the data string or the data URL for the descendant charts within the parent data source. If you append a data string, the data for each descendant chart is embedded within the parent data source and is linked using unique data identifiers.
- The chart type has been set to
Add the
<div>with anfc-chartdirective in your HTML, assuming that it is inside a controller namedMyController.