Highcharts es un libreria para hacer gráficas escrita en puro Javascript, ofreciendo una variedad de tipos de gráficas interactivas e intuitivas para tu web o aplicación. Actualmente Highcharts soporta gráficas de los tipos linea, spline, area, areaspline, columnas, barras , tarta.
Compatible
Trabaja con todos las últimas versiones de los navegadores incluyendo los del iPhone/iPad e IE a partir de la versión 6. Los navegadores estandar utilizan SVG para el renderizado de gráficos. IE por herencia de las versiones antiguas pinta los gráficos como VML.
Es gratuito si no tiene fines comerciales
Mientras sea para uso personal no hay que pedir permiso al autor, pero en webs comerciales hay que mirar en License and Pricing.
Open
One of the key features of Highcharts is the open source code. 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 and scatter chart types. Any 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 agains 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.
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.