What is Highcharts?
Highcharts is a charting library written in pure JavaScript, offering
an easy way of adding interactive charts to your web site or web
application. Highcharts currently supports line, spline, area,
areaspline, column, bar, pie, scatter, angular gauges, arearange,
areasplinerange, columnrange, bubble, box plot, error bars, funnel,
waterfall and polar chart types.
Features
Compatible
It works in all modern mobile and desktop browsers including the
iPhone/iPad and Internet Explorer from version 6. On iOS and Android,
multitouch support provides a seamless user experience. Standard
browsers use SVG for the graphics rendering. In legacy Internet Explorer
graphics are drawn using VML.
Free for Non-commercial
Do you want to use Highcharts for a personal website, a school site
or a non-profit organisation? Then you don't need the author's
permission, just go on and use Highcharts. For commercial websites and
projects, see License and Pricing.
Open
One of the key features of Highcharts is that under any of the
licenses, free or not, you are allowed to download the source code and
make your own edits. This allows for personal modifications and a great
flexibility.
Pure JavaScript
Highcharts is solely based on native browser technologies and doesn't
require client side plugins like Flash or Java. Furthermore you don't
need to install anything on your server. No PHP or ASP.NET. Highcharts
needs only two JS files to run: The highcharts.js core and either the
jQuery, MooTools or Prototype framework. One of these frameworks is most
likely already in use in your web page.
Numerous Chart Types
Highcharts supports line, spline, area, areaspline, column, bar, pie,
scatter, angular gauges, arearange, areasplinerange, columnrange and
polar chart types. Many of these can be combined in one chart.
Simple Configuration Syntax
Setting the Highcharts configuration options requires no special
programming skills. The options are given in a JavaScript object
notation structure, which is basically a set of keys and values
connected by colons, separated by commas and grouped by curly brackets.
Dynamic
Through a full API you can add, remove and modify series and points
or modify axes at any time after chart creation. Numerous events supply
hooks for programming against the chart. In combination with jQuery,
MooTools or Prototype's Ajax API, this opens for solutions like live
charts constantly updating with values from the server, user supplied
data and more.
Multiple Axes
Sometimes you want to compare variables that are not the same scale -
for example temperature versus rainfall and air pressure. Highcharts
lets you assign an y axis for each series - or an x axis if you want to
compare data sets of different categories. Each axis can be placed to
the right or left, top or bottom of the chart. All options can be set
individually, including reversing, styling and position.
Tooltip Labels
On hovering the chart Highcharts can display a tooltip text with
information on each point and series. The tooltip follows as the user
moves the mouse over the graph, and great efforts have been taken to
make it stick to the nearest point as well as making it easy to read a
point that is below another point.
Datetime Axis
75% of all charts with an X and Y axis have a date-time X axis.
Therefore Highchart is very intelligent about time values. With
milliseconds axis units, Highcharts determines where to place the ticks
so that they always mark the start of the month or the week, midnight
and midday, the full hour etc.
Export and print
With the exporting module enabled, your users can export the chart to
PNG, JPG, PDF or SVG format at the click of a button, or print the
chart directly from the web page.
Zooming
By zooming in on a chart you can examine an especially interesting
part of the data more closely. Zooming can be in the X or Y dimension,
or both.
External Data Loading
Highcharts takes the data in a JavaScript array, which can be defined
in the local configuration object, in a separate file or even on a
different site. Furthermore, the data can be handled over to Highcharts
in any form, and a callback function used to parse the data into an
array.
Angular gauges
Ideal for dashboards, angular gauges provides speedometer-like charts, easy to read at a quick glance.
Polar charts
Cartesian chart types like line, area, spline or areaspline can be converted to polar or radial chart by one simple option.
Inverted Chart or Reversed Axis
Sometimes you need to flip over your chart and make the X axis appear
vertical, like for example in a bar chart. Reversing the axis, with the
highest values appearing closest to origo, is also supported.
Text Rotation for Labels
All text labels, including axis labels, data labels for the point and axis titles, can be rotated in any angle.
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