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I am looking for a framework to visualize Circuit Diagrams in Java application.
I have to show Diagrams like that:
For one of my previous projects (in 2008 year) I used Jung. It worked well, but maybe somebody could propose more suitable for my needs framework? Does anyone have a similar task or know a good tools?
Also one of my tasks is to try to layout elements, because there is only info about connections in DB, but there is no layout information. I want to try to minimize manual layout work and looking for layout algorithms.
Thank you in advance.
PS: It is very desirable that the framework will be free.
PPS: Also I am interested in frameworks which can help to show (and edit) such type of diagrams using web browser.
Prefuse is very similar to Jung. I haven't used it extensively but I evaluated both Jung and Prefuse for our graph application.
Another web based option is Protovis which I came across during my evaluation. You can draw interactive graphs with it but I suspect you might need layout information already available to use this tool. Anyway looks like the authors are moving to a new library named D3 so you can check that out.
Another option I see is graphviz.
Here is a big list of graph visualization tools. http://www.mkbergman.com/414/large-scale-rdf-graph-visualization-tools/
I found a java framework named circuit. I think it could help you fix your issue.
http://code.google.com/p/circuit-framework/
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I have pretty standard java project with standard gradle layout, all sources are stored in git. I want to write documentation in markdown (or similar markup language) and keep all files in project directory (e.g. docs/ folder in the root). Then I want to generate static site or push my sources somewhere to have access to full documentation in html (should be self-hosted solution).
It will be good if I'm able to add simple link to other articles (like I do it in any wiki engine by using [[article]]). And It would be perfect if I've been able to add quick links to javadoc by the same technique as link to articles. And also it would be perfect if it has had built-in search engine.
I've gone through couple of static site generators but I didn't find anything which can satisfy my requirements at least half. Is there something like that? Or I need to code it by myself (I know it won't take to much time)? Maybe there's more common use case for documentation?
You have to use the concept of Doclets. There are some out there. Maybe just try this one:
https://github.com/Abnaxos/pegdown-doclet
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I am in need of Java library for graphs that supports dynamic visualization. I need to have objects moving between the vertices and this has to be shown. 3D is not needed, a 2D representation will suffice.
I am currently using JUNG but it is very limited, it is more for static graphs from what I can tell.
I have looked at this question but JGraphT doesn't seem to do it either.
Late Edit:
I waited to finish the project before awarding an answer. I ended up keeping JUNG, while also using UBIGraph (dead project since 2012) as a secondary library.
Take a look:
GEF - GUI components for graphical editing, including graphs, (Eclipse) SWT based
JGraphX - former JGraph, not actively developed since March 2020
Piccolo2D - (Eclipse) SWT based
JUNG - last released in 2010 (as of 2020); was very popular back then
yWorks - not open source, not free
JGraphT - data handling and algorithms only, no integrated visualizaiton, though supports JGraphX visualization
Take a look at GraphStream, as shown from their demo video you can do some fancy stuff with graphs using their library.
Prefuse is pretty and powerful. The website is no longer there so here is an archived version
Have you had a look at Processing, or Processing.js? There are some amazing vis projects being made with this.
Not strictly Java, but easy to integrate within a Java environment, if I recall correctly.
Another option if feasible is to construct text file in graphviz dot format and process it using various tools provided. Mostly helpful for generate static images
See graphviz gallery for more details
You may also want to have a look at wilmascope (or its project page). I used it a few years ago after full research and was quite happy with it, but it has not been updated since 2004 (as of 2020).
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After google around, I have to ask this question on StackOverflow.
There are frameworks around, but most of them are from 2008 2009, unmaintained, multipage or will not work with GWT 2.0
What are the recommended framework should I use for a single page application that will scale most in term of deploy? 1 language is a plus point because GWT is all about 1 language, beside if we tune the server to run Java and serve HTML pages, it will be faster.
But any framework that works and good is okay also.
Thanks :)
In addition to Jay Askren's suggestions, another good framework is gwt-platform, which is a combination of two other good frameworks, gwt-presenter and gwt-dispatch.
I recommend watching this from last year's Google IO. They recommended using the Model-View-Presenter pattern for GWT apps. Here is one implementation of this pattern.
The following from this year's GoogleIO might also be helpful:
http://code.google.com/events/io/2010/sessions/architecting-performance-gwt.html
http://code.google.com/events/io/2010/sessions/architecting-production-gwt.html
I should also mention that GWT is a framework in and of itself. The above are more best practices on how to use the framework.
Have you looked at Sencha GXT? It's a single page framework.
http://www.sencha.com/products/gxt/
I think it's also important to note that GWT 2.1 will include a lot of application framework pieces. From what I've seen so far on the contributor mailing list, it should include:
MVP framework
EventBus integration
PlaceManager for navigation
Data presentation widgets (i.e. data binding)
Validation hooks? (JSR-303 annotations recently committed)
So make sure to check out vanilla GWT 2.1 M2 as well.
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I need an open source GIS that allows one to view/zoom/click the maps using a web browser and should be java compliant (deployable on a java app server).
Well, I have tried to structure the requirement in 'what-i-have' and 'what-i-need' lists:
Inputs:
Location: lat/long
Data : Text to display
zoom level: (assume there are about 5)
Output
Data displayed on a Map
Would appreciate all the help I can get.
Thanks.
UPDATE: GeoServer + OpenLayers seems to be the best fit for this requirement
GeoServer: http://geoserver.org/display/GEOS/Welcome
...is what I use. You have work ahead of you no matter what you pick, though. Setting up data sources and making them look nice is a decent amount of effort.
For the client side, OpenLayers is an excellent Javascript library.
I agree with the geoserver response and all the rest of the responses ignore your statement that is has to work with Java. The only other bad option would be to write something yourself using geotools.
Go to the OpenGeo site and see the stack they support. That is the stack you are probably most interested in deploying.
I guess you'll need:
GDAL/OGR to translate the data into a kml file example
Take that KML file and pump it into either:
a. Google maps api or openlayers
b. I've had lots of luck using featuresever which I personally recommend
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Is there a good library on the web to visualize big data in Java? Perhaps a library for statistical outputs? I know the programming language R is used to visualize statistical data in R, and I have seen a solution to connect Java and R, but it would be better if I can have a pure Java solution.
might want to check out http://processing.org/
I've had success with visualizing graphs with a commercial tool called yFiles. For more general purpose statistical data visualization, you could try Mondrian, which is GPL licensed. These both are Java libraries.
Have to mention Piccolo2D -- using it very frequently. It does not provide the ready to use data structures as Prefuse does, but it surely scales and provides a great degree of freedom in how one would want to visualise the data.
JFreeChart is a good Option. I have tried it, and is easy to set up with Eclipse too. BIRT is also nice, but if you are using it for reporting that is.
Prefuse is a pretty nice library for Java, and even lets you publish animations in Flash using a layer called Flare:
prefuse visualization toolkit
prefuse visualization gallery
On the R side, you only need to browse the gallery to see what it's capable of:
R Graphics Gallery
There's a library for Clojure (not quite Java but still on the JVM) called Incanter.
It is built on Colt and JFreeChart. It may be possible that you can just use Colt directly, but I wouldn't know.
The Weka project might be able to help you. It's an open source library of data mining algorithms written in Java. If they don't have the visualization themselves, it might be in their "related projects" section.
http://www.cs.waikato.ac.nz/ml/weka/