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NEWS
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vim:syntax=changelog
2011-10-23 Anton Gladky <gladky.anton@gmail.com> revision around bzr2942
* RELEASE 0.70.0, Bug-fix release.
* some changes since 0.6
- Added HarmonicMotionEngine, WirePM
- Added check-tests to detect regressions
- A lot of fixes in the code and documentation.
2010-12-01 Václav Šmilauer <eu@doxos.eu> revision around bzr bzr2540
* RELEASE 0.6:
- https://launchpad.net/yade/trunk/0.60
* major changes since 0.5:
- use boost::serialization (faster, more reliable), use eigen instead of Wm3 (better supported, more flexible)
- qt4-based interface with on-the-fly inspection and editing of all internal variables
- support compilation with clang++
- live plots
- periodic boundary conditions are much better tested now
- batch web interface substantially enhanced (including plots, logs, ...)
- extended attribute flags (readonly, noSave, hidden, ...)
- added --rebuild, --debug and --test options
2010-04-20 Václav Šmilauer <eudoxos@arcig.cz> revision around bzr2150
* RELEASE: 0.5
- https://launchpad.net/yade/+milestone/0.5
* overall:
- yade main is now a python script, the c++ part is imported
- many classes renamed for the sake of consistency, while mostly keeping backward compatibility for scripts
- all classes (deriving from Serializable) are automatically exposed in python via automatically constructed wrappers, with full attribute access (https://bugs.launchpad.net/yade/+bug/544857)
- lot of old code removed (to be found in attic/)
* functionality:
- separated State and (possibly shared) Material for bodies
- InsertionSortCollider handles both periodic and aperiodic simulations now
- Cell can undergo arbitrary linear transformation during simulation
- VTKRecorder saves to VTK-compatible XML files; allows one to use Paraview for post-processing
- NewtonIntegrator features integration of rotation of non-spherical bodies
- callback functionality for interaction and body loop (InteractionDispatchers and NewtonIntegrator) (not yet fully done)
- body and interaction containers devirtualized (https://blueprints.launchpad.net/yade/+spec/devirtualize-containers)
* documentation:
- New website https://www.yade-dem.org
- Sphinx documentation https://www.yade-dem.org/sphinx/, containing both hand-written and automatically generated documentation
- All classes and attributes visible from python are documented now
- Drop doxygen documentation
2009-08-31 Václav Šmilauer <eudoxos@arcig.cz> revision around bzr1740
* RELEASE: 0.20.0
* overall:
- fix many crashers, including synchronization with openGL, GUI and python
- generate documentation for both python and c++ classes/functions automatically (http://yade.wikia.com/wiki/Reference_documentation)
- move away from SVN repository at berlios.de to bzr at http://www.launchpad.net/yade; bug tracking and other launchpad features are being used; mailing lists migrated to launchpad
* functionality enhancements (apart from performance-oriented changes):
- Facets (arbitrary triangulation elements) interacting with spheres, allowing to triangulate any surface
- support for GTS-compatible triangulated surfaces both as predicates and facet-triangulated simulation elements
- non-incremental sphere-sphere and sphere-facet contact geometry classes (Dem3DofGeom)
- ConstitutiveLawDispatcher, for having multiple constitutive laws operating on different interactions
- schedule to run multiple jobs at time, with different parameters (yade-multi, http://yade.wikia.com/wiki/ScriptParametricStudy)
- added PhysicalParameters::blockedDOFs
- periodic boundary conditions
- interaction logic cleaned up
- sphere packing generators (orthogonal, hexagonal, loose random, triaxially compacted; periodic coming soon)
- geometry predicates to clip packing, including boolean operations on predicates
- infrastructure for regression tests
* performance:
- consistent openMP support throughout the code (InteractionDispatchers, NewtonsDampedLaw, BexContainer) (http://yade.wikia.com/wiki/Performance_Tuning#openMP)
- InsertionSortCollider (PersistentSAPCollide removed) (http://yade.wikia.com/wiki/Colliders_performace)
- InteractionDispatchers that reduce number of loops over interactions to one (http://yade.wikia.com/wiki/Performance_Tuning#InteractionDispatchers)
- new fast container for interactions (InteractionVecMap) (http://yade.wikia.com/wiki/Performance_Tuning#Containers)
- caching dispatchers, avoiding repetitive multivirtual call resolution (http://yade.wikia.com/wiki/Performance_Tuning#Dispatcher_cache)
- runtime profiling information (http://yade.wikia.com/wiki/Speed_profiling_using_TimingInfo_and_TimingDeltas_classes)
- avoid running collision detection at every step (http://yade.wikia.com/wiki/Insertion_Sort_Collider_Stride)
- vector and quaternion classes are wrapped in python automatically (faster, avoids hand-written wrappers)
- removed many python proxy classes, resulting in big speedup of python (e.g. 40 × for some operations)
* building:
- yade can be optionally with one single plugin containing all packages. Speeds up full compilation considerably and reduces binary size several times.
- files in pkg/* are picked up automatically by the build system, including linking flags
- do not install headers, only plugins
- fix debian-package builds and document the procedure (http://yade.wikia.com/wiki/DebianPackages), special package for docs
- fix all (or most) compile-time warnings
- create new top-level py/ directory for python
* python:
- use natural syntax for class instance construction with attributes
- run telnet server to make yade accessible while running (from localhost only)
- save any python variables within the XML file, which will be resurrected next time (utils.saveVars, utils.loadVars)
- support saving simulation to memory temporarily
- functions from creating video from simulation (via snapshots, either during simulation or in the player)
* Documentation:
- Structurized content added http://yade.wikia.com/wiki/Structurized_content
- FAQ start to implement http://yade.wikia.com/wiki/FAQ
2008-08-20 Janek Kozicki <cosurgi@gmail.com> revision 1579
* RELEASE: 0.12.1
- several python interface improvements
- add code for plotting histogram of interaction directions
- added buttons for looking from different directions
- new contact algorithm for facets
- added python script for making videos
- added a TCP server on port 9000 with python console in it
- new dependency on python-numpy package, which allows faster math in python
- added a script for parametric studies
2008-08-20 Janek Kozicki <cosurgi@gmail.com> revision 1486
* RELEASE: 0.12
* User interface:
- Refactored Qt3 interface: MDI with simulation running
asynchronously, with python console
- Python wrapper and console with the ability to control most
simulation aspects (including creating simulations,
modifying, inspecting, running, recording data), some parts
of the UI (setting view, configuring renderer); see
scripts/simple-scene.py to get started
(http://yade.wikia.com/wiki/SimpleSceneTutorial)
- Much enhanced simulation recorder and player, saving
optionally to a single file (sqlite database), the ability to
create video from simulation with one command (may be done
offscreen as well): scripts/simple-scene-player.py,
http://yade.wikia.com/wiki/New:Making_videos
* Graphical Viewer:
- up to 3 clipping planes in the GLViewer, can be manipulated,
bound to each other, activated/deactivated
- saving view to view configurations inside MetaBody (Alt+7 --
Alt+9), can be loaded later (from python as well)
- displacement and rotation scaling in GLViewer, using
PhysicalParameters::refSe3
* Simulation features:
- New moment rotation law, fully tested and working
- All simulation aspects (dt, iteration, virtual time) are now
inside MetaBody, i.e. are restored exactly as they were from
.xml
- Much improved triaxial test
- Lattice model can now simulate concrete with steel fibres
* New, experimental features:
- Selectively block any of 6 DOFs ( translation and rotation)
for individual bodies (PhysicalParameters::blockedDOFs - not
documented, not conveniently accessible from python
yet)
- Plotting interface based on pylab see example in
scripts/simple-scene-graph.py
- Sega's facets and vertices with stl import (for example
import shapes from blender)
* Serialization:
- Transparent support for compressed .xml.gz and .xml.bz2
files; dropped support for binary format
- The (de)serializer now (un)escapes all control characters,
using the &charname; format, arbitrary string values can be
de/serialized now, including parentheses, quotations marks,
newlines, tabs, <>.
* Compilation / Development:
- Compilation profiles allow separate option sets for scons;
simultaneous compilation of multiple profiles is supported
via the profile=a,b,c
- QGLViewer source is now in our tree, no need to install it
separately