Announcement ~ 0.8 plugin release
The latest beta version of Gephi has been released, download it for Windows, Mac OS and Linux platforms. This release focus on new features for both users and developers, and the new license unlocks opportunities for business. The Ranking and Preview modules have been completely rewritten in a modular way and can be now extended with plug-ins! Preview can now be extended in many ways, for instance group shapes or edge bundling. Moreover, continuous progress have been made on the dynamic network support and we release today the last big part: statistics over time, available from the Statistics module when the network is dynamic. Thanks to users who reported bugs, it’s the only way to fix them.
The team will now start developing the 0.9 version of Gephi (please consider joining us!) and integrate the latest Google Summer of Code projects, including a new timeline. We are also willing to help as much as possible plug-ins developers to get things done and improve documentation. We want to leverage the new Preview and will help newcomers to get started.
Because it’s a major release, changes are not deployed through the AutoUpdate, you need to download and install the new version. Plug-ins also need to be checked for compatibility. They will reappear on the Plugin Center in the coming days, as they are verified. Thanks for your patience.
Consult the release notes and the new Javadoc for more information.
Features highlight
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Dynamic Ranking
Ranking now works with dynamic networks and it’s easy! When manipulating a dynamic network with the Timeline simply enable the ‘Auto Apply’ and the color/size is updated in real-time. To import a dynamic node size simply import a regular dynamic column in your GEXF and select it in Ranking like before. |
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PNG Export
A new powerful PNG export has been added to the existing PDF and SVG export. One can create high-resolution network images with all the customization available in Preview. You can even create transparent background images! |
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New Preview
Major effort to completely rewrite the Preview module in a modular way. One can now create plug-ins for Preview! The new Preview includes new opacity options, a text outline, radius (customize edge start/end points) and a simplified list of properties. |
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Dynamic Metrics
New dynamic metrics in the Statistics module: Dynamic Degree, Dynamic Node Count, Dynamic Edge Count and Dynamic Clustering Coefficient. Dynamic metrics are executed on a dynamic network and allow to analyze how network properties evolve over time. |
New And Noteworthy
* Data Lab node merging
* ForceAtlas2 layout algorithm, with multi-thread option
* Node and Edge transparency in Preview
* Edge labels on curved edges in Preview
* Text outline now in Preview
* Database importer now supports time columns (start & end)
* DL Export (Thanks to Taras Klaskovsky)
* GML Export (Thanks to Taras Klaskovsky)
* NET Export (Thanks to Daniel Bernardes)
* K-core filter
* Inter and Intra partition filter
* Now supports SQLite databases
* Display the number of layout iterations in status bar when ended
* Recent Palette in Ranking
* Weighted degree now also for directed graphs
New localization (Go to Tools > Languages)
* Portuguese (Brazilian) (Thanks to Célio Faria Jr)
* Japanese (Thanks to Siro Kida and Koji Chono)
Performance
* Memory starvation manager, warns the user before running out of memory
* Less memory usage with attributes
Bug fixes
* Timeline need more precision when dealing with dates (bug 521937)
* Exception on range slider (bug 541808)
* Inconsistent label data from Overview to Preview (bug 660204)
* Statistics: sub-optimal modularity (bug 727701)
* Timeline cann’t drag if the two sliders moved to the left (bug 745476)
* Missing Polish characters when exporting to pdf (bug 746740)
* Edge selection color is not correct on OSX (bug 752300)
* Workspace name truncated, hard to read (bug 758578)
* Average degree cannot be switched to directed / undirected (bug 760454)
* Window->Favorites appears in 0.8 alpha (bug 764494)
* Disable ‘directed’ on metric settings if the graph is undirected (bug 771318)
* Timeline does not work (exception) (bug 774455)
* Layout properties can’t be saved in a language and loaded in another language (bug 783637)
* Preview: edge label not shown (bug 783868)
* Possible memory leak on Dynamic Range Filter (bug 784606)
* Edge attributes not saved in .gephi project file (bug 785268)
* Data Lab: Exception when selecting only one column for merging (bug 785269)
* Data Lab Import Spreadsheet should not ignore parallel edges (bug 785635)
* Data Laboratory: wrong edge type created (mutual instead of directed) (bug 787401)
* Data Lab: impossible to edit time intervals in a date format (bug 793163)
* Spelling of Proportionnal (bug 794358)
* Graphics errors when JOGL installed as a JRE/JDK extension (bug 799545)
* NPE if source/target is empty in GEXF import (bug 799574)
* Toolkit can’t open .gephi files (bug 802101)
* Resizing edge sizes changes edge weight values (bug 803763)
* Preview does not use node label settings from overview tab (bug 805763)
* Data Lab ‘Import Spreadsheet’ dialogue should accept other file types than .csv (bug 806798)
* Edge weights not imported from CSV matrix (bug 808078)
* Preview tab: no option to switch off node borders? (bug 808606)
* Gephi runs out of memory without warning the user (bug 811373)
* Counter-intuitive filename in Data export dialog (bug 814178)
* NullPointerException when creating newProjects too quickly (bug 817170)
* Nodes and edges Id attribute dictionary is not properly created when loading a .gephi file (bug 818181)
* Database driver doesn’t persist in Edge List Database import UI (bug 822316)
* NodeEqualNumberFilter does not work (bug 823038)
* Gephi does not build on JDK 7 (bug 823543)
* SVG node, edge export should include relevant node IDs as classes (bug 827706)
* Import Spreadsheet: need to trim column names (bug 829956)
* Layout list not sorted by name (bug 830149)
* In/Out degree metric is computed on the main graph instead of the visible graph (bug 830752)
* Layout is not giving the algorithm’s number of iterations (bug 831782)
* Banner height issues, need a fixed height (bug 834400)
* NPE when running ClusteringCoefficient on a filtered graph (bug 852799)
* Missing node properties from dot file (bug 855410)
* ‘The value column doesn’t exist’ error when opening a gephi file (bug 857595)
* Import fails for NET (Pajek) file with position/color data (bug 860825)
* GEXF export referes to v1.1 schema, should be v1.2 schema (bug 864484)
New Plug-ins documentation
Checkout the documentation for the newly created Preview module: HowTo write a Preview Renderer. Learn also how to extend the Data Laboratory features in a new tutorial.
New license
Gephi is now released in the dual license CDDL + GNU GPLv3. We abandon the GNU AGPL to offer new opportunities to reuse and integrate parts of Gephi in a full Open Source way. The dual license system means the possibility to choose to apply either the CDDL or the GNU GPLv3 when Gephi source code is integrated to a derivative work. When modified, original files of Gephi should always be published publicly so that the community benefit from the improvements. However, the CDDL license does not require to publish the whole work, so you can build commercial applications for free using Gephi source code!
The CDDL is a license created by Sun and approved by the Open Source Initiative. It is business-friendly. Read the Legal FAQs to learn more, and ask questions on the forum.
Contribute
It’s fun to contribute to an open-source project! Contribute whatever the time you can give: few minutes to report a bug, some hours to fix one or to translate the user interface or more to create a plug-in. If you’re a student and looking for cool and challenging semester projects check out the Gephi Student Program or contact us.
Do Gephi technologies matter for your research or business? You can support us by donating to the Gephi Consortium, or becoming a member to have an impact on our roadmap.
Feel free to reach to us if you are willing to organize events (meetups, workshops, hackathon, etc.), we will support them.
Community ~ 0.8 force atlas geolayout layout openord tutorial
A new tutorial is available about Layouts in Gephi. It will guide you to the basic and advanced layout settings in Gephi. You will learn how to use various layouts in Gephi according to the feature you want to emphasis in the topology and the size of the network, how to avoid node overlapping and how to do some geometric transformations.
This tutorial explains when and how to use each layout, including:
Tutorial: Download it in PDF.
Announcement ~ 0.8 developer python toolkit
A new release of the Gephi Toolkit arrived, based on the 0.8alpha version. Download the latest package, including Javadoc and demos by clicking on the link below.
It includes all features and bugfixes the 0.8alpha version has, notably:
- GEXF 1.2 support (partial)
- Add Neighbour Filter
- Improve support of meta-edges in Statistics and Filters
- Edge weight option in PageRank, which can now be used by the algorithm
- VNA Import (Thanks to Vojtech Bardiovsky)
- Label Adjust algorithm 3 times faster
- Saving/Loading projects is faster and use less memory
Demos available on the Toolkit Portal have been adapted when necessary and tested. If you are intrested in using plug-ins from the Toolkit, checkout How to use plug-ins with the Toolkit.
Links you may be interested:
This summer, the student Luiz Ribeiro is working on GSoC Scripting Plugin, a project to bring advanced scripting features in Gephi, using Python. This project will work with the Gephi Toolkit, and greatly facilitate its usage.
Functionality Plugins ~ 0.8 Generator plugin science
Cezary Bartosiak and Rafał Kasprzyk just released the Complex Generators plugin, introducing many awaited scientific generators. These generators are extremely useful for scientists, as they help to simulate various real networks. They can test their models and algorithms on well-studied graph examples. For instance, the Watts-Strogatz generator creates networks as described by Duncan Watts in his Six Degrees book.
The plugin contains the following generators:
- Balanced Tree
- Barabasi Albert
- Barabasi Albert Generalized
- Barabasi Albert Simplified A
- Barabasi Albert Simplified B
- Erdos Renyi Gnm
- Erdos Renyi Gnp
- Kleinberg
- Watts Strogatz Alpha
- Watts Strogatz Beta
The plug-in can be installed directly from Gephi 0.8, from the Plugins menu.
The source code is available on Launchpad.
Announcement ~ 0.8 release store
The latest version of Gephi has been released today, download it for Windows, Mac OS and Linux platforms. Focus has again been made on stability with more than 80 bug fixes, and performance improvements. Thanks to users who reported bugs, that always makes the difference.
The team will now focus on the Google Summer of Code. Have a look at the exciting projects developed this summer. We are also willing to help as much as possible plug-ins developers to get things done and improve documentation.
Because it’s a major release, changes are not deployed through the AutoUpdate, you need to download and install the new version. Plug-ins also need to be checked for compatibility. They will reappear on the Plugin Center in the coming days, as they are verified.
Consult the release notes and the new Javadoc for more information.
Features highlight
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Localization
Localization is coming with this release, with French and Spanish! In Gephi, simply go to Tools -> Languages to switch.
You speak German, Russian or Italian? All three? Localization need your help, show up on the Forum to get started. |
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Email spigot
Now import emails from files or servers and look at communication networks. Spigots in Gephi are more advanced way to import networks, look for ‘Import Spigots’ in the File menu. Using wizards to configure settings, new spigots like Twitter or New York Times API are available as plug-ins. |
New And Noteworthy
* GEXF 1.2 support (partial)
* Add Neighbour Filter
* Improve support of meta-edges in Statistics and Filters
* Improve usability of Filters
* Edge weight option in PageRank, which can now be used by the algorithm
* Duplicate workspaces (Edit Menu)
* Graph files now supports GZ compression
* Better Filters support in .gephi files
* VNA Import
Performance
* Label Adjust algorithm 3 times faster
* Saving/Loading projects is faster and use less memory
Bug fixes
* Windows installer should not require admin privileges (bug 663337)
* Cancelled Vector Export Disabled “File” Menu (bug 728871)
* Misformated SQL-Server JDBC url (bug 745414)
* Partition Filter Loses Categories As Subfilter (bug 726107)
* Workspace name does not increment (bug 711185)
* Ranking Color can’t be changed on OSX (bug 737727)
* Filter panel not cleared after query removed (bug 737992)
* Ego Filter “with self” option doesn’t work with depth > 1 (bug 671007)
* Maximum Degree Range Doesn’t Update on Subfilter (bug 725688)
* Cannot save and reload dynamic network as project (bug 709270)
* GDF exports attributes when option is disabled (bug 735927)
* Rename “Edit” menu to “Workspaces”? (bug 735475)
* Data laboratory context menu takes too much time to appear when a lot of nodes are selected (bug 735721)
* export svg/pdf with no edges causes NPE (bug 693789)
* Can’t import the same file twice in Welcome window (bug 598157)
* Graph Window in Overview Tab Fails to Load (bug 659773)
* Timeline appears first wrong when timeformat=”date” (bug 709234)
* Filter query not saved when Filter button is active (bug 671004)
* GEXF option doesn’t work(bug 709235)
* Ego Network Filter Searches for Substring, Does Not Match Value (bug 726114)
* Label text settings not saved in .project (bug 660205)
* saved preset for layouts creates several instances (bug 612848)
* Partition colors in Filters are different from those in Partition (bug 616037)
* import of pajek net has floating pt problem (bug 619893)
* NullPointerException on saving project (bug 622154)
* Name of currently opened file not updated after a “save as” (bug 629374)
* Labels are not hidden on Preview (bug 654006)
* Chaining Dynamic Filter (bug 654018)
* NullPointerException on importing CSV data in Data Laboratory (bug 654030)
* Statistics report not refreshed after a new execution (bug 654036)
* Maximum lock count exceeded error when running Label Adjust (bug 655544)
* GEXF export: missing attvalues element (bug 655975)
* Can’t use ranking label transformers with toolkit (bug 656172)
* GEXF export: attribute definitions exported even if Attributes option is unchecked (bug 656276)
* Preview throws an Exception with negative edges (bug 656955)
* Closeness centrality chart empty with normalized values (bug 658361)
* Statistics fail to work on a hierarchy level different from the leaves (bug 658394)
* Exported Data Table doesn’t use sorted columns (bug 658816)
* Importing a TIME_INTERVAL column in Data Laboratory CSV import doesn’t enable dynamic features (bug 659017)
* Error when using filter export features and filtering off (bug 659229)
* Exception when using flatten filter (bug 659270)
* GDF export generates invalid files (bug 660200)
* Wrong color type exported in GraphML (bug 660356)
* GEXF exporter doesn’t export the label if they are the same as the id (bug 660382)
* Tool Selection tooltip under the graph window (bug 660459)
* Column settings in Data Lab are not saved in .project (bug 660469)
* Data Lab filter not executed when changing the column (bug 660471)
* Data Lab: column used by node filter is automatically reset (bug 660517)
* Personalized color of a specific partition is rolled back (bug 660529)
* DOT importer ignores edge weight and .gv file extension (bug 661257)
* Exceptions when importing mixed graph (bug 662488)
* Error on selecting nodes from filter if graph window not shwn at startup (bug 663561)
* Blank preview screen (bug 664300)
* Edge text not visible on preview with other attributes (bug 664444)
* Data does not appear on nodes table (bug 667440)
* saving a project uses too much memory for large graphs (bug 672071)
* Data Lab: search/replace only on a given column (bug 676087)
* Workspace number incremented by opening a new project (bug 681038)
* Filter “out degree range” does not work (bug 681184)
* NullPointerException on exporting dynamic GEXF file with Toolkit (bug 686432)
* Wrong relative betweenness (bug 687267)
* graphml generated syntax is incorrect (bug 688678)
* Import Report freezes when the number of issues or logs is too high (bug 688865)
* Filters fail to work on a hierarchy level different from the leaves (bug 691278)
* Wrong edge count in Context Panel with hierarchies (bug 692225)
* RepaintCell exception on Mac OS X (bug 692379)
* Exceptions when group/ungroup from Partition after delete (bug 692382)
* GML importer don’t process ‘weight’ column as weight (bug 703877)
* Degree doesn’t take edge weight into account (bug 703933)
* Edge attribute values not imported from graphml file (bug 707390)
* PageRank not for weighted networks (bug 715621)
* Data Lab: boolean column edition facility (bug 717869)
* Exception on Delete Column if sorted by this column (bug 719987)
* Data Lab: edge rows not displayed when the hierarchy level /= 0 in Overview (bug 720033)
* Java Null Pointer when using Merge Columns (bug 722287)
* Open Recent files doesn’t work with project files (bug 734105)
* Timeline disappears after saving project.gephi file (bug 695558)
* Exception on Visualization Settings if opened before Overview (bug 734117)
* Database import is not cancelable (bug 734126)
* ‘A task is still executing’ error after cancelling a custom importer, not LongTask (bug 734132)
* Edge weight slider not refreshed between workspaces (bug 731599)
* Exception on New workspace after deleting last workspace (bug 735273)
* Colors not imported in Pajek Net format (bug 530028)
To 0.8 beta and beyond
Following the Gephi Manifesto, we continue our way to the release 1.0 with goals sets in the Roadmap. You can speed up our progresses in many ways whatever the time you can give: few minutes to report a bug, some hours to fix one or to translate the user interface, some weeks to create a plug-in…you will be always greatly welcomed!
Do Gephi technologies matter for your research or business? You can support us by donating to the Gephi Consortium, or becoming a member to have an impact on our roadmap.
Proud to be part of the Gephi Community? On our fresh new store you can buy mugs, T-shirts and more to show it!
Go to the Gephi store
The stores sells in Europe (EUR). To get a tee-shirt in the US, check our official Gephi tee-shirt.
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