D3 Funnel

D3Funnel is an extensible, open-source JavaScript library for rendering funnel charts using the D3.js library.

D3Funnel is focused on providing practical and visually appealing funnels through a variety of customization options. Check out the examples page to get a showcasing of the several possible options.

Usage

To use this library, you must include the source files for D3.js and D3Funnel.

<script src="/path/to/d3.min.js"></script>
<script src="/path/to/d3-funnel.js"></script>

You must also create a container element and instantiate a new chart:

<div id="funnel"></div>

<script>
    var data = [
        ['Plants',     5000],
        ['Flowers',    2500],
        ['Perennials', 200],
        ['Roses',      50]
    ];
    var options = {};

    var chart = new D3Funnel('#funnel');
    chart.draw(data, options);
</script>

Options

Option	Description	Type	Default
width	The pixel width of the chart.	int	Container's width
height	The pixel height of the chart.	int	Container's height
bottomWidth	The percent of total width the bottom should be.	float	1 / 3
bottomPinch	How many sections to pinch on the bottom to create a "neck".	int	0
isCurved	Whether the funnel is curved.	bool	false
curveHeight	The curvature amount (if isCurved is true).	int	20
fillType	Either "solid" or "gradient".	string	'solid'
isInverted	Whether the funnel is inverted (like a pyramid).	bool	false
hoverEffects	Whether the funnel has effects on hover.	bool	false
dynamicArea	Whether block areas are calculated by counts (as opposed to static height).	bool	false
minHeight	The minimum pixel height of a block.	int/bool	false
animation	The load animation speed in milliseconds.	int/bool	false
label.fontSize	Any valid font size for the labels.	string	'14px'
label.fill	Any valid hex color for the label color	string	'#fff'
onItemClick	Event handler if one of the items is clicked.	function	function(d, i) {}

Advanced Data

You can specify overriding colors for any data point (hex only):

var data = [
    ['Teal',      12000, '#008080' '#080800'],
    ['Byzantium', 4000,  '#702963'],
    ['Persimmon', 2500,  '#ff634d' '#6f34fd'],
    ['Azure',     1500,  '#007fff' '#07fff0']
    //         Background ---^         ^--- Label
];

If you want to pass formatted values to be shown in the funnel, pass in an array containing the value and formatted value:

var data = [
    ['Teal',      [12000, 'USD 12,000']],
    ['Byzantium', [4000,  'USD 4,000']],
    ['Persimmon', [2500,  'USD 2,500']],
    ['Azure',     [1500,  'USD 1,500']]
];

License

MIT license.