Rickshaw

Rickshaw is a JavaScript toolkit for creating interactive time series graphs, developed at Shutterstock

Getting Started

Getting started with a simple graph is straightforward. Here's the gist:

var graph = new Rickshaw.Graph( {
  element: document.querySelector('#graph'),
  series: [
    {
      color: 'steelblue',
      data: [ { x: 0, y: 23}, { x: 1, y: 15 }, { x: 2, y: 79 } ]
    }, {
      color: 'lightblue',
      data: [ { x: 0, y: 30}, { x: 1, y: 20 }, { x: 2, y: 64 } ]
    }
  ]
} );

graph.render();

See the overview, tutorial, and examples for more.

Rickshaw.Graph

A Rickshaw graph. Send an element reference, series data, and optionally other properties to the constructor before calling render() to point the graph. A listing of properties follows. Send these as arguments to the constructor, and optionally set them later on already-instantiated graphs with a call to configure()

element

A reference to an HTML element that should hold the graph.

series

Array of objects containing series data to plot. Each object should contain data at a minimum, a sorted array of objects each with x and y properties. Optionally send a name and color as well. Some renderers and extensions may also support additional keys.

renderer

A string containing the name of the renderer to be used. Options include area, stack, bar, line, and scatterplot. Defaults to line. Also see the multi meta renderer in order to support different renderers per series.

width

Width of the graph in pixels. Falls back to the width of the element, or defaults to 400 if the element has no width.

height

Height of the graph in pixels. Falls back to the height of the element, or defaults to 250 if the element has no height.

min

Lower value on the Y-axis, or auto for the lowest value in the series. Defaults to 0.

max

Highest value on the Y-axis. Defaults to the highest value in the series.

padding

An object containing any of top, right, bottom, and left properties specifying a padding percentage around the extrema of the data in the graph. Defaults to 0.01 on top for 1% padding, and 0 on other sides. Padding on the bottom only applies when the yMin is either negative or auto.

interpolation

Line smoothing / interpolation method (see D3 docs); notable options:

linear: straight lines between points
step-after: square steps from point to point
cardinal: smooth curves via cardinal splines (default)
basis: smooth curves via B-splines

stack

Allows you to specify whether series should be stacked while in the context of stacking renderers (area, bar, etc). Defaults to stack: 'true'. To unstack, unstack: 'true'.

Methods

Once you have instantiated a graph, call methods below to get pixels on the screen, change configuration, and set callbacks.

render()

Draw or redraw the graph.

configure()

Set properties on an instantiated graph. Specify any properties the constructor accepts, including width and height and renderer. Call render() to redraw the graph and reflect newly-configured properties.

onUpdate(f)

Add a callback to run when the graph is rendered

Extensions

Once you have a basic graph, extensions let you add functionality. See the overview and examples listing for more.

Rickshaw.Graph.Legend - add a basic legend
Rickshaw.Graph.HoverDetail - show details on hover
Rickshaw.Graph.JSONP - get data via a JSONP request
Rickshaw.Graph.Annotate - add x-axis annotations
Rickshaw.Graph.RangeSlider - dynamically zoom on the x-axis with a slider
Rickshaw.Graph.RangeSlider.Preview - pan and zoom via graphical preview of entire data set
Rickshaw.Graph.Axis.Time - add an x-axis and grid lines with time labels
Rickshaw.Graph.Axis.X - add an x-axis and grid lines with arbitrary labels
Rickshaw.Graph.Axis.Y - add a y-axis and grid lines
Rickshaw.Graph.Axis.Y.Scaled - add a y-axis with an alternate scale
Rickshaw.Graph.Behavior.Series.Highlight - highlight series on legend hover
Rickshaw.Graph.Behavior.Series.Order - reorder series in the stack with drag-and-drop
Rickshaw.Graph.Behavior.Series.Toggle - toggle series on and off through the legend

Rickshaw.Color.Palette

Rickshaw comes with a few color schemes. Instantiate a palette and specify a scheme name, and then call color() on the palette to get each next color.

var palette = new Rickshaw.Color.Palette( { scheme: 'spectrum2001' } );
    
palette.color() // => first color in the palette
palette.color() // => next color in the palette...

Optionally, to palette.color() can take a numeric argument to specify which color from the palette should be used (zero-indexed). This can be helpful when assigning a color to series of a plot with particular meaning:

var palette = new Rickshaw.Color.Palette( { scheme: 'colorwheel' } );
    
palette.color(0) // => first color in the palette - red in this example
palette.color(2) // => third color in the palette - light blue

Color Schemes

classic9
colorwheel
cool
munin
spectrum14
spectrum2000
spectrum2001

Interpolation

For graphs with more series than palettes have colors, specify an interpolatedStopCount to the palette constructor.

Rickshaw and Cross-Browser Support

This library works in modern browsers and Internet Explorer 9+.

Rickshaw relies on the HTMLElement#classList API, which isn't natively supported in Internet Explorer 9. Rickshaw adds support by including a shim which implements the classList API by extending the HTMLElement prototype. You can disable this behavior if you like, by setting RICKSHAW_NO_COMPAT to a true value before including the library.

Dependencies

Rickshaw relies on the fantastic D3 visualization library to do lots of the heavy lifting for stacking and rendering to SVG.

Some extensions require jQuery and jQuery UI, but for drawing some basic graphs you'll be okay without.

Rickshaw uses jsdom to run unit tests in Node to be able to do SVG manipulation. As of the jsdom 7.0.0 release, jsdom requires Node.js 4 or newer jsdom changelog. If you want to run the tests on your machine, and you don't have access to a version of node >= 4.0, you can npm install jsdom@3 so that you can run the tests using the 3.x branch of jsdom.

Building

For building, we need Node and npm. Running make should get you going with any luck.

After doing a build you can run the tests with the command: npm test

If you'd like to do your own minification, you will need to give a hint to the minifier to leave variables named $super named $super. For example, with uglify on the command line:

$ uglify-js --reserved-names "$super" rickshaw.js > rickshaw.min.js

Or a sample configuration with grunt-contrib-uglify:

uglify: {
  options: {
    mangle: { except: ["$super"] }
  }
}

Contributing

Pull requests are always welcome! Please follow a few guidelines:

Please don't include updated versions of rickshaw.js and rickshaw.min.js. Just changes to the source files will suffice.
Add a unit test or two to cover the proposed changes
Do as the Romans do and stick with existing whitespace and formatting conventions (i.e., tabs instead of spaces, etc)
Consider adding a simple example under examples/ that demonstrates any new functionality

Authors

This library was developed by David Chester, Douglas Hunter, and Silas Sewell at Shutterstock

License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

MatthewWEdwards/rickshaw