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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.
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).
GoldenOrb is a cloud-based project for massive-scale graph analysis, built upon Apache Hadoop and modeled after Google's Pregel architecture. It provides solutions to complex data problems, remove limits to innovation and contribute to the emerging ecosystem that spans all aspects of big data analysis. It enables users to run analytics on entire data sets instead of samples.
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.
Charts4j is a lightweight charts & graphs Java API. It enables developers to pro grammatically create the charts available in the Google Chart API through a straightforward and intuitive Java API. It Supports nearly all features of the Google Chart API. It hides the ugly details of creating the URL parameters that are necessary for communicating with the Google Chart API.
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.
Minjava is a Java reverse engineering software. It means that it can help to understand the architecture and behavior of an existing Java software. It is based on a Java meta-model, that defines how the possible Java softwares can be structured. An importer analyzes a Java source code or byte-code to build a Java model. This Java model is then used by different reverse engineering tools, like a class diagram generator.
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.