LiveGraph is a framework for real-time data visualisation, analysis and logging. It has a real time plotter that can automatically update graphs of your data while it is still being computed by your application. LiveGraph reads files in a simple CSV-style format. For applications developed in Java, LiveGraph additionally provides an API that handles all data logging and persistency issues. LiveGraph uses only very few computational resources for the updates as it is has specialised caching techniques. Transformation of data series between Linear, logarithm, unit interval, and time-plot transformations are supported.

LiveGraph is a framework for real-time data visualisation, analysis and logging. It has a real time plotter that can automatically update graphs of your data while it is still being computed by your application. LiveGraph reads files in a simple CSV-style format. For applications developed in Java, LiveGraph additionally provides an API that handles all data logging and persistency issues.

Live Graph - Plot and explore your data in real-time

jFreeChart is a widely used open source charting library. Its flexible design is easy to extend and targets both server-side and client-side applications. It supports many output types, including Swing components, image files (PNG and JPEG) and vector graphics file formats (including PDF, EPS and SVG). It may not provide real time charts, updating the dataset once per second is fine. Refreshing the chart less than a second will result in high cpu load. <A HREF="http://www.ujihara.jp/jbyjsharp/jfreechart/" target="_blank">jFreeChart.NET</A> - JFreeChart ported on .NET. Demo: <A HREF="http://www.jfree.org/jfreechart/jfreechart-1.0.13-demo.jnlp" target="_blank">http://www.jfree.org/jfreechart/jfreechart-1.0.13-demo.jnlp</A>

jFreeChart is a widely used open source charting library. Its flexible design is easy to extend and targets both server-side and client-side applications. It supports many output types, including Swing components, image files (PNG and JPEG) and vector graphics file formats (including PDF, EPS and SVG).

jFreeChart - Java and .NET chart library

Openchart2 is based on the JOpenChart library. It provides a simple interface for Java programmers to create two-dimensional charts and plots. This library features an assortment of graph styles, including advanced scatter plots, bar graphs, pie charts, Radar charts, Dot plots. All chart types support dynamic zooming. Simple arrays or full database sources can provide data to the plotting routines.

Openchart2 is based on the JOpenChart library. It provides a simple interface for Java programmers to create two-dimensional charts and plots. This library features an assortment of graph styles, including advanced scatter plots, bar graphs, pie charts, Radar charts, Dot plots. All chart types support dynamic zooming. Simple arrays or full database sources can provide data to the plotting routines.

Openchart2 - Simple Plotting for Java

SWTChart is based on Eclipse SWT (Standard Widget Toolkit). All of widgets in SWTChart are composed of SWT, so that you can easily hock listeners to widgets, and also you can easily extend the functionality. It has an ability to handle large data size of series. It supports line chart, scatter chart, stack chart, log scale, category axis, multiple axes, bar chart, area chart , step chart, axis orientation, series label etc.

SWTChart is based on Eclipse SWT (Standard Widget Toolkit). All of widgets in SWTChart are composed of SWT, so that you can easily hock listeners to widgets, and also you can easily extend the functionality. It has an ability to handle large data size of series.

SWTChart - light weight chart component

The JCCKit provides flexible framework for creating scientific charts and plots. It provides support for dynamic charts by automatically updating from the modified dataset. It is suitable for scientific Applets and for PDA's.

JCCKit - Chart Construction Kit for the Java platform

JGraphX (aka JGraph 6) is the most powerful, easy-to-use and feature-rich graph drawing component available for Java. It could draw hierarchical, circular, trees and force-directed graphs. Its feature include zoom, moving, edge editing, attribute maps and lot more.

jGraph - Graph Drawing Component in Java 

jCharts is a 100% Java based charting utility that outputs a variety of charts. Servlets, JSP's, and Swing application could use this library to generate charts. It could generate charts of type Area, Area Stacked, Bar, Bar Clustered, Bar Clustered Horizontal, Bar Horizontal, Bar Stacked, Bar Stacked Horizontal, Combo, Hi/Low Open/Close, Line, Pie 2D, Pie 3D, Point, Radar, XY Plot and lot more.

jCharts - Java based charting utility 

JChart2D is an minimalistic realtime charting library. JChart2D is a single configureable swing widget. JChart2D is intended for engineering tasks and not for presentations. It's specialty is run time - dynamic precise display of data with a minimal configuration overhead.

jChart2d - Swing chart widget

JGraphT is a Java graph library that provides mathematical graph-theory objects and algorithms. It includes directed, undirected, weighted, unweighted etc. Graphs could be created based on Strings, URLs, XML documents. 

jGraphT - Java graph library

XChart is a light-weight and convenient library for plotting data designed to go from data to chart in the least amount of time possible and to take the guess-work out of customizing the chart style.
<ul>
<li>No required additional dependencies</li>
<li>~182KB Jar</li>
<li>Multiple Y-Axis charts</li>
<li>Line charts</li>
<li>Scatter charts</li>
<li>Area charts</li>
<li>Bar charts</li>
<li>Histogram charts</li>
<li>Pie charts</li>
<li>Donut charts</li>
<li>Bubble charts</li>
<li>Stick charts</li>
<li>Dial charts</li>
<li>Radar charts</li>
<li>OHLC charts</li>
<li>Error bars</li>
<li>Logarithmic axes</li>
<li>Number, Date and Category X-Axis</li>
<li>Multiple series</li>
<li>Tool tips</li>
<li>Extensive customization</li>
<li>Themes – XChart, GGPlot2, MATLAB</li>
<li>Right-click, Save-As…</li>
<li>User-defined axes range</li>
<li>Definable legend placement</li>
<li>CSV import and export</li>
<li>High resolution chart export</li>
<li>Export as PNG, JPG, BMP and GIF</li>
<li>Export SVG, EPS and PDF using optional de.erichseifert.vectorgraphics2d library</li>
<li>Real-time charts</li>
<li>Java 6 and up</li>
</ul>

XChart is a light-weight and convenient library for plotting data designed to go from data to chart in the least amount of time possible and to take the guess-work out of customizing the chart style.

XChart - Light weight Java library for plotting data

GRAL is a Java library for displaying graphs, diagrams, and charts. CSV, bitmap image data, audio file data could be used as data source. The generated graphs could be extracted to various file formats like bitmap, PNG, GIF, JPEG, EPS, PDF, SVG.

GRAL - GRAphing Library

Chart2d library provides support to generate two dimensional charts. Pie, Line, Bar, Scatter Plot chart types are supported. It supports both integer and real datasets and label formatting, both positive and negative.

Chart2d - Generate two-dimensional charts using Java

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