Real-time Java graph / chart library? [closed]

Answer 1

http://www.live-graph.org/

Answer 2

Fast enough for real time is swtchart, at least in my experience. Even with lots of data. Don't be scared away by the version number, yes it is a rather new API, but I use it successfully without problems.

As the name implies, it is based on SWT, which uses native OS drawing. Also it does some clever optimizations for drawing fast, like not drawing all points in the dataset (see Large Series Example Snippet).

Answer 3

You probably have already found a good solution, but if not, I have recently done some work on a framework for producing 2D charts allowing for live updates at a rate of over 50 changes per second.

The original intention was to mimic the appearance of a chart recorder in a scrolling region of a web page, but I believe the approach has wider application.

A demo can be found at Chart Recorder Demo if anyone is interested.

The appearance is defined by a template (www.journeylog.co.uk/chart/templates/chartRecorder.xml). One feature is the ability to specify drawing either on the server or in the browser using ExplorerCanvas.

If anyone is interested I could start an open source project for it.

Answer 4

JCCkit is vary good library who are targetting less memory especially in embedded environment : https://sourceforge.net/projects/jcckit .

Takes less than <100 kb .

Answer 5

Well, if it has to be Java, then you might want to look into these.

• Java Real-Time Systems (includes demo both real-time and non-real-timem, and JavaFX version of the charting application)
• Real-time Java application development using multicore systems
• Expedited Real-Time Task Graphs (This technology runs on Linux, but development can be done on any platform that supports Java 5.0 and Eclipse.)
• JavaFX - A Pie Chart Demo

Answer 6

this seems like a good candidate.

http://jchart2d.sourceforge.net/

demo:

http://jchart2d.sourceforge.net/applet.shtml