VOPlot for plotting VOTables

This project has been undertaken by the Inter-University Centre for Astronomy and Astrophysics and Persistent Systems, Pune as part of the VOI initiative. 

VOPlot is a standalone java application for plotting different astronomical graphs data stored in VOTable XML format. It allows users to plot numeric data from a VOTable. A list of the features supported in the current version of the VOPlot is given below.

A web-based version of the VOPlot will soon be integrated with the VizieR Catalogue Service so that catalogues can be plotted online. 

Please send comments and questions to <voindia@vo.iucaa.ernet.in>.

Download VOPlot v1.0

Sample Plots are available here.

User Guide is available here.

                            Salient Features

* Ability to plot data read from either a local or remote VOTable.

* Ability to plot different types of plots: The tool supports plotting data in the form of:

       Scatter plots - Plotting of individual points.

       Line plots - Joining the plotted points by line segments.

       Histograms

*  Ability to transform data before plotting. Simple arithmetic and trigonometric functions are supported.

* Ability to filter data to create new data subsets, which can be used for plotting.

* Ability to specify manually or let the tool auto-select the axes limits.

* Ability to specify labels for the axes as well as a title for the plot.

* Ability to use logarithmic scales on axes.

* Ability to overlay different plots for the purpose of comparison.

* Ability to specify axes limits & labels after the plot is rendered.

* Ability to zoom-in & out of the plot.

* Ability to save the image of the plot as an EPS file.

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