Choice Free JS Datavis Library Since there are many javascript solutions for graphics, the purpose of this article is to consider only those that popular among developers. For completeness, here is a list of libraries that have been considered, but excluded for various reasons: PlotKit - has not been updated for more than 5 years;Chronoscope - website not available;Ortho - no interactive examples;FusionCharts - no free versions;ZingChart - commercial;Protovis - is no longer under active development. Developers recommend switching to D3.js;tickerplot - has not been updated for more than 2 years;HumbleFinance - these charts are no longer supported. Developers recommend to use Envision.js; So, lets review: JavaScript Data Visualization Libraries Dojo GFX Dojo GFX is a cross-browser 2D vector graphics API that enables development of rich graphic web application on desktop and mobile without having to deal with the browser's native graphics technologies. gRaphaël gRaphaël’ based on Raphaël graphics library. Google Chart Tools
The Best Tools for Visualization Visualization is a technique to graphically represent sets of data. When data is large or abstract, visualization can help make the data easier to read or understand. There are visualization tools for search, music, networks, online communities, and almost anything else you can think of. Whether you want a desktop application or a web-based tool, there are many specific tools are available on the web that let you visualize all kinds of data. Here are some of the best: Visualize Social Networks Last.Forward: Thanks to Last.fm's new widget gallery, you can now explore a wide selection of extras to extend your Last.fm experience. Last Forward Friends Sociomap: Friends Sociomap is another Last.fm tools that generates a map of the music compatibility between you and your Last.fm friends. Fidg't: Fidg't is a desktop application that gives you a way to view your networks tagging habits. Fidg't The Digg Tools: One more: Digg Radar. YouTube: Visualize Music Musicovery Last.fm music visual tools: Amazon
DataVis Web Apps A dashboard is a single screen showing the status of an application. At a glance you should see what’s going well and what areas are struggling. Customer retention is down. Sales are up. Complaints are at an all time high. They’re the application equivalent of homepages, and present many of the same political challenges. There are many points put forward in the slide deck, the biggest lesson I can offer is iteration. Iteration and user feedback is valuable in all areas of design, but none more so than dashboards. Three other points I’d add to that presentation were I to give it again… 1. Every figure presented will result in another question being asked. 2. A good way to end up with a crap dashboard is to assume that every day is “off the charts”. 3.Solid first. There are occasions where it makes sense to use additional visuals to make a point with more emotion than a simple bar chart. Recommended Reading
Very simple login using Perl, jQuery, Ajax, JSON and MySQL Introduction Since the beginning of the WWW, the developers try to equip their Web sites with new features and widgets to attract the users' attention and make the life much easier for them by applying the latest technologies. Nowadays, an average Web user, among other activities, shops, searches for information, registers to forums and communities, plays online games and communicates with the other users on the Internet. For most of these activities the user typically needs to register and then log in to the Web site. These basic features require special care; they need to be simple, fast and secure for the user. From the developer's perspective, thanks to the new techniques, the implementation of these features gets easier every day. In this article, you will learn how to bring a handful of these technologies together and implement a very simple login feature for your Web site. The implementation has been broken down into 4 sections: What is not included in the article? Listing 1. Perl
Grassroots Mapping dygraphs JS Vis Library gource visualisation tool Gource is a software version control visualization tool. See more of Gource in action on the Videos page. Introduction Software projects are displayed by Gource as an animated tree with the root directory of the project at its centre. Currently Gource includes built-in log generation support for Git, Mercurial, Bazaar and SVN (as of 0.29). Synopsis view the log of the repository (Git, SVN, Mercurial and Bazaar) in the current path: gource Donations If you like Gource and would like to show your appreciation and encourage future work on this and other open source projects by the author, please consider making a donation! Bitcoin: 15WP34zkaZFJCyzCAKLt9qrWSvDuBN7XLv Related Software You may also want to check out Logstalgia, a web server access log visualization tool. News 14 April 2014 Gource 0.41 has been released. You can now specify a date range directly with --start-date and --stop-date (using 'YYYY-MM-DD hh:mm:ss' ISO format). Changes since 0.40: Multi-monitor support using SDL 2.0 when available.
COMPARISON: 30 free tools for data vis & analysis November 7, 2013 03:21 PM ET The chart below originally accompanied our story 22 free tools for data visualization and analysis (April 20, 2011). We're updating it as we cover additional tools, including 8 cool tools for data analysis, visualization and presentation (March 27, 2012) and Six useful JavaScript libraries for maps, charts and other data visualizations (March 6, 2013). Click through to those articles for full tool reviews. Features: You can sort the chart by clicking on any column header once to sort in ascending order and a second time to sort by descending (browser JavaScript required). Skill levels are represented as numbers from easiest to most difficult to learn and use: Users who are comfortable with basic spreadsheet tasks Users who are technically proficient enough not to be frightened off by spending a couple of hours learning a new applicationPower usersUsers with coding experience or specialized knowledge in a field like GIS or network analysis.
ajax Description: Perform an asynchronous HTTP (Ajax) request. The $.ajax() function underlies all Ajax requests sent by jQuery. It is often unnecessary to directly call this function, as several higher-level alternatives like $.get() and .load() are available and are easier to use. At its simplest, the $.ajax() function can be called with no arguments: Note: Default settings can be set globally by using the $.ajaxSetup() function. This example, using no options, loads the contents of the current page, but does nothing with the result. The jqXHR Object The jQuery XMLHttpRequest (jqXHR) object returned by $.ajax() as of jQuery 1.5 is a superset of the browser's native XMLHttpRequest object. As of jQuery 1.5.1, the jqXHR object also contains the overrideMimeType() method (it was available in jQuery 1.4.x, as well, but was temporarily removed in jQuery 1.5). Deprecation Notice: The jqXHR.success(), jqXHR.error(), and jqXHR.complete() callbacks are deprecated as of jQuery 1.8. Data Types
The Overview Project » About Overview is an open-source tool to help journalists find stories in large numbers of documents, by automatically sorting them according to topic and providing a fast visualization and reading interface. Whether from government transparency initiatives, leaks or Freedom of Information requests, journalists are drowning in more documents than they can ever hope to read. Overview does at least three things really well. Find what you don’t even know to look for.Find broad trends or patterns across many documents.Make exhaustive manual reading faster, when all else fails. Search is a wonderful tool when you know what you’re trying to find — and Overview includes advanced search features. In other cases you’re interested in broad patterns. But even when you really do have to read every document manually, Overview is a huge help. For more about the different ways to use Overview, see our post on the different types of document-driven stories. You can upload your documents directly as PDF files.
Rickshaw: A JavaScript toolkit for creating interactive time-series graphs Graphing Toolkit Rickshaw provides the elements you need to create interactive graphs: renderers, legends, hovers, range selectors, etc. You put the pieces together. See Demo → Built on d3.js It's all based on d3 underneath, so graphs are drawn with standard SVG and styled with CSS. Open Source Rickshaw is free and open source, available under the MIT license. Getting Started Here's a minimal but complete working example. Area Graphs Lines Bars Scatterplot Interactive Legend Add a basic legend: Add functionality to toggle series' visibility on and off: Highlight each series on hover within the legend: Add drag-and-drop functionality to re-order the stack (requires jQueryUI): Interactive Hover Details Show the series value and formatted date and time on hover: Specify formatting callbacks to customize output: See the custom formatter and subclass examples for more. Annotations Add toggleable annotations: annotator.add(timestamp, message);annotator.update(); Range Slider Graphs & Data via AJAX / JSONP Tutorial
Thinkmap visualization software facilitates communication, learning, and discovery.