RPlot Instructions

Basically I wrote RPlot to have a look and feel similar to GNUPlot, and to work in a manner such that it can be programatically added to java applications. As a result many of the API calls bare some resemblance to GNUPlot commands. I have not written, and do not intend to write, an interactive command line based UI for RPlot. If you want to use one I recommend that you install GNUPlot.

Have fun.

Richard.

Build

First check you have apache ant and Java 1.7 or later. Then:

$ ant RPlot.jar

Tests

There are some unit tests, if you are interested in running them then do the following:

$ ant runalltests

Documentation

$ ant javadoc

Then open build/javadocs/index.html in your favourite browser.

Demo

To see a demo graph showing several of the plot types available in a Swing dialog run:

$ java -jar build/RPlot.jar

You should see a window appear containing the following plot:

Right click on the graph produces a popup menu allowing you to print, save as an image. Left click and drag a region to zoom in.

To see some pretty black and white textures run:

$ java -jar build/RPlot.jar textures

You should see a window appear containing the following plot:

You can use the argument help to show additional options to the demo.

The code for these is in SwingPlot.java. The method genTest shows you how to set up a graph object. Once the graph object has been setup its just a matter of giving it to a PlotPanel to render.

Examples

Here's a very simple example of a line graph.

Point2D [] points = new Point2D[3];
points[0] = new Point2D(1.0f, 1.0f);
points[1] = new Point2D(3.0f, 2.1f);
points[2] = new Point2D(5.0f, 1.5f);

PointPlot2D plot = new PointPlot2D();
plot.setData(points);
plot.setLines(true);
plot.setPoints(true);

Graph2D graph = new Graph2D();
graph.addPlot(plot);

plotPanel.setGraph(graph);  // assume plot panel is created elsewhere