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Jonathan Kelly
Jonathan Kelly

LiveGraph: A Java-Based Framework for Data Visualization, Analysis and Logging in Real-Time


LiveGraph Download: How to Plot and Explore Your Data in Real-Time




If you are looking for a tool that can help you visualise, analyse and log your data in real-time, you might want to check out LiveGraph. LiveGraph is a framework for real-time data visualisation, analysis and logging that can plot graphs of your data while it is still being computed by your application. In this article, we will show you what LiveGraph is, how to download and install it, how to use it and how to integrate it with your application.




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What is LiveGraph?




LiveGraph is a framework for real-time data visualisation, analysis and logging that was developed in the academic domain and is being used for research on daily basis. Being open source, LiveGraph is absolutely free. Here are some of its distinctive features:


A framework for real-time data visualisation, analysis and logging




LiveGraph consists of three major components:


  • A real-time plot suite that reads the LiveGraph data file (or any other CSV file) and plots the data series contained therein on the screen.



  • An open data file standard that defines a simple CSV-style format for data files containing transferable data logs.



  • Several integration APIs that allow creating LiveGraph compatible value files in any programming language and handling data logging and persistency issues for Java applications.



Distinctive features of LiveGraph




A real-time plotter that can automatically update graphs of your data while it is still being computed by your application




LiveGraph can automatically re-examine the data file at short time intervals (anything between 100 Hz and once per hour) and update the graphs on the screen in real-time. By using specialised caching techniques, LiveGraph uses only very few computational resources for the updates, even if the data file grows very large and fast.


A concise and simple point-and-click interface that allows quickly selecting and comparing data series even in applications that output over 1000 series simultaneously




LiveGraph has an incredibly efficient user interface optimised for 100s of data series. While many plotters trade off powerful functions for a complex, slow-to-use user interface, LiveGraph offers only a few data transformation functions, but makes them available via a concise and simple point-and-click interface. You can select and compare data series by simply clicking on the legend window, and transform them by using the buttons on the legend window.


A transformation of data series for visual comparison by the virtue of a single click




LiveGraph allows you to transform the data series on the graph by applying various mathematical operations, such as scaling, shifting, inversion, differentiation, integration, logarithm, exponentiation and more. You can also apply custom functions that you define yourself. The transformations are applied on-the-fly and do not affect the original data file. You can easily switch between the original and the transformed data series by clicking on the legend window.


A Java-based framework that can run on any computer system and is easily integrated with applications written in any programming language




LiveGraph is written in Java and can run on any computer system that supports Java. It does not require any installation or configuration. You can simply download the LiveGraph jar file and run it from any location. LiveGraph can also be integrated with applications written in any programming language, as long as they can produce a LiveGraph compatible data file. LiveGraph also provides a Java API that can handle data logging and persistency issues for Java applications.


How to download and install LiveGraph?




Downloading and installing LiveGraph is very easy and straightforward. Here are the steps you need to follow:


Download LiveGraph from SourceForge or CNET




You can download LiveGraph from either SourceForge or CNET. Both sites offer the latest version of LiveGraph as a jar file that contains all the necessary components. The file size is about 1 MB. You can use the following links to download LiveGraph:


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Install LiveGraph on your computer system




LiveGraph does not require any installation or configuration. You can simply save the jar file to any location on your computer system and run it from there. You can also create a shortcut to the jar file for easier access.


Run LiveGraph and select a data file to plot




To run LiveGraph, you need to have Java installed on your computer system. If you do not have Java, you can download it from . To launch LiveGraph, you can either double-click on the jar file or use the command line: java -jar LiveGraph.jar. Once LiveGraph is running, you will see its main window with an empty graph area. To plot your data, you need to select a data file that contains your data logs in the LiveGraph format or any other CSV format. You can use the File menu to open a data file or drag and drop it onto the graph area.


How to use LiveGraph?




Using LiveGraph is very intuitive and simple. Here are some of the basic steps you need to follow:


Explore the user interface of LiveGraph




The user interface of LiveGraph consists of four main parts:


The main window with the graph area, the legend window, the settings window and the status bar




The main window is where you can see your graphs of your data series. The graph area is where the graphs are drawn. You can zoom in and out by using the mouse wheel or the buttons on the status bar. You can also pan by dragging with the mouse or using the arrow keys. The legend window is where you can see the names and colors of your data series. You can select and compare data series by clicking on them or using Ctrl+click for multiple selection. You can also transform data series by using the buttons on the legend window. The settings window is where you can change various options for your graphs, such as axes labels, scales, ranges, colors, fonts, grid lines, markers and more. You can show or hide the settings window by using the View menu or the button on the status bar. The status bar is where you can see some information about your data file, such as the file name, the number of data series, the number of data points and the update frequency. You can also use the buttons on the status bar to zoom, pan, refresh and save your graphs.


The menu bar with the file, view, tools and help options




The menu bar is where you can access various functions and options for LiveGraph. The File menu allows you to open, close, save and export your data files and graphs. The View menu allows you to show or hide the legend window, the settings window and the status bar. The Tools menu allows you to access some advanced features of LiveGraph, such as data file converter, data file merger, data file generator and data file validator. The Help menu allows you to access the user manual, the online documentation, the examples and tutorials and the about dialog.


Plot and update your data in real-time




Once you have selected a data file to plot, you can see your graphs of your data series on the graph area. You can also see the names and colors of your data series on the legend window. LiveGraph will automatically update your graphs as your data file changes in real-time. You can also manually refresh your graphs by using the Refresh button on the status bar or pressing F5. Here are some of the things you can do with your graphs:


Select the data series to display by clicking on the lege


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