DGtal

We are pleased to announce the release 0.5 of the DGtal library.

Here you have the complete Changelog of this release with plenty of new cool features

Continue reading →

We’re preparing the next DGtal meeting… Further details later but it will be in Nantes (France).

We are pleased to announce that the release 0.4 of the DGtal library is available for download.

Here you have a copy of the ChangeLog:

• Global changes:
• A better decomposition of DGtal algorithms and
  data structures into packages.
• By default, DGtal is built with minimal dependencies.
• Concepts and concept checking mechanism have been
  considerably improved.
• Kernel Package: refactoring of Integer types considered in DGtal.
• Topology Package: Interpixel/cellular topological models, boundary tracking tools, …
• Geometry Package: many things have been added in the 1D contour analysis module:
• multi-modal representation of 1D contours and curves (GridCurve facade)
• decomposition/segmentation into primitives,
• many differential estimators added, helpers for multigrid comparison of estimators
• multigrid digital set generators from implicit and parametric shapes in dimension 2.
• I/O Package: refactoring/enhancements of DGtal boards and viewers, enhancement of 2D boards with libcairo and a new Board3Dto2D board has been added.
• Tools: multigrid shapeGenerator/contourGenerator added, lengthEstimator/estimatorComparator added for differential estimator multigrid comparison, connected components extraction in 3D, …
• Documentation: User guide has been improved thanks to a decomposition of the library into packages.

DGtal Meeting Slides are available in the Documentation  section.

Following the presentation of DGtal during DGCI 2011, we are pleased to
invite you to the 2nd DGtal library meeting in Lyon, France (https://liris.cnrs.fr/acces/localisation-UCBL.htm). During this
5 day meeting, the first one (9h-17h30) will be devoted to Tutorials and Demos (How
to use the lib ? How to be involved in DGtal development, presentations
of DGtal tools & modules, general discussions on DGtal directions, …).
This first day should be perfect for persons interested in the library
and DGtal beginners. Presentations will be given by DGtal developers.

The optional following 4 days are devoted to code sessions, technical
discussions, plans for future,… It would be a good be the opportunity
for new participants to take part to this project by discussing about
future DGTal modules or help us on existing ones.

A complete program will be available soon on DGtal site
http://liris.cnrs.fr/dgtal. In the meantime, you can have a look to the
source code on the DGtal github project: http://github.com/dcoeurjo/DGtal

If you would like to participate to the tutorial session (or even
better, to the whole meeting), just reply or send us an email
(dgtal@liris.cnrs.fr).

We are migrating the DGtal project from svn/trac to git and github (easier branch management, nicer issue tracker,…).

Have a look the to project page on github: http://github.com/dcoeurjo/DGtal !

Only 3 days after the last release, here you have a minor set of changes
which fixes build problems on linux. Here you have the Changelog:

• Build bugfixes (linux/mac)
• New doc added (prelim. version): “Cellular grid space and topology,cells, digital surfaces”
• New example on domain range

Important

• Repo cleanup: presentations, posters, etc.. have been removed from the trunk to the folder https://svn.liris.cnrs.fr/dgtal/presentations (too large image eps files). If you want to get the slides/presentations, you will need to do a brand new checkout :

Beside the DGtal presentation at DGCI 2011, we are pleased to announce a new DGtal release 0.3.0.

New features:

• User-guide added (based on doxygen system)
• Kernel: new concepts and controls to enhance the Interger type management, new iterators (Range/SubRange) on HyperRectDomains.
• Topology: interpixel model added (cells, boundary tracking mechanisms,…)
• Geometry 2D: 2D curve primitive decomposition, tangential cover, convexity/concavity decomposition.
• Geometry nD: reverse Euclidean distance transformation
• Visualisation: stream mechanism to visualize 3D DGtal objects with libQGLViewer (optional)
• Shape generator factory added in nD

BugFixes, enhancements:

• Many bugs have been fixed for this release.
• cmake DGtal dependency checking process is more stable now

Known problems:

• For technical reasons, we haven’t be able to verify that this release also compile on Windows Visual Studio systems (see ticket #87). A new release will fix this problem as soon as possible.
• All open tickets

DGtal will be presented during DGCI 2011 conference (and a new release is scheduled for that event). More details  later…

During last January DGtal meeting, several presentations were given on different modules of the DGtal lib (release 0.2).

• DGtal Topology Module (PDF, en) Jacques-Olivier Lachaud
• DGtal 2D Geometry Module (PDF, fr) Tristan Roussillon