JFreeChart
Encyclopedia
JFreeChart is an open-source framework
for the programming language
Java
, which allows the creation of a wide variety of both interactive and non-interactive chart
s.
JFreeChart supports a number of various charts, including combined charts:
It is possible to place various markers and annotations on the plot.
JFreeChart also works with GNU Classpath
, a free software
implementation of the standard class library
for the Java programming language
.
JFreeChart automatically draws the axis scales and legends. Charts in GUI automatically get the capability to zoom in with mouse and change some settings through local menu. The existing charts can be easily updated through the listeners that the library has on its data collections.
Software framework
In computer programming, a software framework is an abstraction in which software providing generic functionality can be selectively changed by user code, thus providing application specific software...
for the programming language
Programming language
A programming language is an artificial language designed to communicate instructions to a machine, particularly a computer. Programming languages can be used to create programs that control the behavior of a machine and/or to express algorithms precisely....
Java
Java (programming language)
Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities...
, which allows the creation of a wide variety of both interactive and non-interactive chart
Chart
A chart is a graphical representation of data, in which "the data is represented by symbols, such as bars in a bar chart, lines in a line chart, or slices in a pie chart"...
s.
JFreeChart supports a number of various charts, including combined charts:
- X-Y charts (line, spline and scatter). Time axis is possible.
- Pie chartPie chartA pie chart is a circular chart divided into sectors, illustrating proportion. In a pie chart, the arc length of each sector , is proportional to the quantity it represents. When angles are measured with 1 turn as unit then a number of percent is identified with the same number of centiturns...
s - Gantt chartGantt chartA Gantt chart is a type of bar chart that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project. Terminal elements and summary elements comprise the work breakdown structure of the project. Some Gantt charts...
s - Bar chartBar chartA bar chart or bar graph is a chart with rectangular bars with lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally....
s (horizontal and vertical, stacked and independent). It also has built-in histogram plotting. - Single valued (thermometer, compass, speedometer) that can then be placed over map.
- Various specific charts (wind chart, polar chart, bubbles of varying size, etc).
It is possible to place various markers and annotations on the plot.
JFreeChart also works with GNU Classpath
GNU Classpath
GNU Classpath is a project aiming to create a free software implementation of the standard class library for the Java programming language. Despite the massive size of the library to be created, the majority of the task is already done, including Swing, CORBA, and other major parts. The Classpath...
, a free software
Free software
Free software, software libre or libre software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions that only ensure that further recipients can also do...
implementation of the standard class library
Java Class Library
The Java Class Library is a set of dynamically loadable libraries that Java applications can call at run time. Because the Java Platform is not dependent on any specific operating system, applications cannot rely on any of the existing libraries...
for the Java programming language
Java (programming language)
Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities...
.
JFreeChart automatically draws the axis scales and legends. Charts in GUI automatically get the capability to zoom in with mouse and change some settings through local menu. The existing charts can be easily updated through the listeners that the library has on its data collections.