prefuse

Basically, I'm looking for something like this awesome research project: Gmap , which was referenced in this related SO question . It's a rather novel data visualization that combines a network graph with an imaginary set of regions that looks like a map. Basically, the map-ification helps humans comprehend the enormous data set better. Cool, huh? GMap doesn't appear to be open source, though I plan to contact the authors. I already know how to create a network graph with a force-directed layout (currently using Prefuse/Flare), so an answer could be a way to layer a mapping algorithm on top of

I am new to Prefuse. The demo examples are all loaded data from a file/database. Is there any way to create the data dynamically instead of loading from file. For example, I want to create a tree data structure and visualize this. Any simple working example would be really helpful for me. I've just been attacking this problem. Here's a tweaked version of Example.java which shows one way to make it happen. Instead of loading data from socialnet.xml , I'm generating it programatically (based on Aggregate.java but without the aggregation stuff) and adding one field to each Node and each Edge .

The prefuse visualization toolkit is pretty nice, but for Java. I was wondering if there was something similar for python. My primary interest is being able to navigate dynamic graphs. I know this is not exactly python, but you could use prefuse in python through jython Something along the lines of: Add prefuse to your path: export JYTHONPATH=$JYTHONPATH:prefuse.jar and >>> import prefuse from your jython machinery this guy has an example of using prefuse from jython here You might want to check out SUMMON , a visualization system that uses python but handles fairly large data sets. There's an

I am using the prefuse visualization toolkit, The GraphView Demo in the toolkit is amazing providing a variety of controls to visualize the data. I am able to generate GraphML for my dataset and visualize it using GraphView, One additional thing that i would love to have is to label the edges with weights or color coding to demonstrate the strength between two nodes. Any input about the same are greatly appreciated..Thanks.. Disclaimer: I haven't worked with the API just checked the documentation:) It seems that the API has an EdgeRenderer interface that you should implement to achieve the

Like here , my Prefuse graph is too dense to see anything. So I tried the approach suggested by @bcr in the accepted answer. However, it does not work for me. This is what I tried: I retrieved the default settings. Then I changed the 2nd parameter of NBodyForce from ForceSimulator (called Distance ) and the second parameter of SpringForce (called DefaultSpringLength ) and fed them—along with the other default values—into my new ForceSimulator . But nothing in the output changed. What am I getting wrong? This is my code: private static void visualiseGraph(Graph graph) { Visualization vis = new

I've currently got prefuse to plot a scatter graph, where the X axis is the computer name and the Y axis is its temperature. How do I get it to draw bars showing the values instead of discrete points? I'm currently using the following code to render the points: ShapeAction shape = new ShapeAction(group, Constants.SHAPE_RECTANGLE); ColorAction strokeColor = new DataColorAction(group, dataType, Constants.NUMERICAL, VisualItem.STROKECOLOR, colorPalette); ActionList draw = new ActionList(); draw.add(shape); draw.add(strokeColor); draw.add(new ColorAction(group, VisualItem.FILLCOLOR, 0)); draw.add