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TTK - ChangeLog

=

dev

1.3.0

  • Wasserstein Auto-Encoders of Merge Trees / Pers. Diagrams (IEEE TVCG 2024)
  • Topological simplification optimization (IEEE VIS 2024)
  • TopoMap dimensionality reduction (IEEE TVCG 2020)
  • TTK is Getting MPI-ready! (IEEE TVCG 2024)
  • ExTreeM merge tree computation backend (IEEE TVCG 2024)
  • Ripser integration
  • DMS performance improvements (allocation)
  • Saddle connector reversal performance improvements
  • Signed distance fields
  • Array preconditioning improvements (fast MPI implementation)
  • Migration to ParaView 5.12, 5.13
  • CI extensions (sccache, ubuntu-24.04, macos-14)
  • Switch to C++17
  • Bug fixes

1.2

  • Principal Geodesic Analysis of Merge Trees / Pers. Diagrams (IEEE TVCG 2023)
  • Parallel Computation of Morse-Smale Segmentations (IEEE TVCG 2023)
  • Branch Mapping Distance between Merge Trees (EuroVis 2022)
  • Path Mapping Distance between Merge Trees (IEEE TopoInVis 2022)
  • TTK is Getting MPI-Ready \0/ !!!
  • Migration to ParaView 5.11.1
  • Switch to C++14
  • Discrete Morse Sandwich performance improvements (parallel efficiency)
  • Morse Smale Complex performance improvements
  • Wasserstein distance performance improvements
  • Support for Persistence Diagrams in Merge Tree Clustering
  • Clustering scores (NMI/ARI)
  • Dimensionality reduction metric preservation score (DistanceMatrixDistortion)
  • On-surface smoothing
  • API improvements
  • Bug fixes

1.1

  • Discrete Morse Sandwich & persistent generators (IEEE TVCG 2023)
  • Persistence diagram approximation (IEEE LDAV 2021)
  • Compact triangulations (IEEE TVCG 2021)
  • Rips complex
  • Triangulation manager
  • PersistentSimplexPairs backend (Zomorodian 2010), slow.
  • Bug fixes
  • Documentation improvements
  • Online examples

1.0

  • Official integration into ParaView-5.10 \0/ clap! clap! clap! \0/
  • Migration to ParaView-5.9.1
  • Wasserstein Distances, Geodesics, Barycenters of Merge Trees (IEEE VIS 2021)
  • Progressive Scalar Field Topology (IEEE TVCG 2021)
  • Direct LTS-based persistence sensitive simplification
  • Improved Persistence diagram clustering features
  • Marking deprecated filters (ParaView integration)
  • Explicit triangulation performance improvement
  • IO for preconditioned triangulations
  • Morphological modules (DilateErode)
  • StableManifoldPersistence module
  • Pareto set extension to Jacobi sets
  • More performance optimization (Discrete Morse Theory / Morse-Smale complex)
  • Improved ZFP integration (fixed accuracy instead of fixed rate)
  • Support for WebSocketIO (web browser interaction)
  • CMake improvements
  • Bug fixes

0.9.9

  • Migration to VTK9/ParaView-5.8.0 \0/ clap! clap! clap! \0/
  • Support for ParaView-5.7.0 \0/
  • New branching management
  • New triangulation preconditioning for regular grids
  • New templated triangulation API (up to x2 speedup)
  • New debugging API
  • New module API (simpler, clearer, more convenient)
  • Performance updates for the Morse-Smale complex (e.g. improved worstcase runtime with processlowerStar, IEEE PAMI 2011)
  • Order-based simulation of simplicity (big performance updates)
  • Localized Topological Simplification of Scalar Data (IEEE VIS 2020)
  • Fuzzy Contour Trees: Alignment and Joint Layout of Multiple Contour Trees (EuroVis 2020)
  • Cinema Darkroom: A Deferred Rendering Framework for Large-Scale Datasets (IEEE LDAV 2020)
  • Automatic deb binary packaging (for Ubuntu, Windows, MacOS)
  • Updated examples
  • Many fixes

0.9.8.9

  • Progressive Wasserstein Barycenters of Persistence Diagrams (IEEE VIS 2019)
  • Fast Wasserstein distance between Persistence Diagrams (auction+kd-tree)
  • Support for periodic grids
  • Improved dimension reduction (support for distance matrices)
  • Extended Cinema support (compression, improved SQL support)
  • VTK/Python API with conda-forge packaging
  • Updated examples
  • Fixes

0.9.8

  • Updates for ParaView-5.6.1
  • ContourAroundPoint (EnvirVis 2019 paper)
  • Task-based Parallel Reeb Graphs with Dynamic ST-Trees (EGPGV 2019 paper)
  • Nested Tracking Graphs (EuroVis 2017 paper)
  • Morse-Smale quadrangulation (SIGGRAPH 2006 paper)
  • Harmonic scalar field design (SMI 2009 paper)
  • Eigen functions of the Laplace-Beltrami operator (cotan weights)
  • Eigen and spectra support
  • Barycentric subdivision
  • Updated python examples
  • Docker support
  • Planar graph layout module
  • Improved tracking from overlap (modular, templated, streaming support)
  • New identifier sorter (for example to select the N most persistent features)
  • Memory footprint improvement for the discrete gradient
  • New unified plugin library
  • Improved memory
  • Bug fixes
  • Clang-formatting

0.9.7

  • Updates for ParaView-5.6.0
  • Tracking from overlap
  • TTK pipeline filters (ForEachRow)
  • Depth image based geometry approximation (IEEE LDAV 2018 paper)
  • Advanced cinema+sqlite3 support
  • Lifted Wasserstein Matcher for Topology Time-Tracking (IEEE LDAV 2018 paper)
  • Dimension reduction for high dimensional data (scikit-learn integration)
  • Automatic guesses for ttk generated fields
  • Improved type consistency
  • Improved ParaView GUIs
  • DataSet Interpolator (interpolate anything onto anything)
  • Improved triangulation request
  • Bug fixes

0.9.6

  • Fixed major performance bug with discrete gradient (thanks to Attila Gyulassy)
  • TDA aware compression (with ZLIB and ZFP support)
  • New addressing scheme (allowing up to 64 bit ids), for extreme size datasets
  • Automatic offset selection
  • Updates for ParaView-5.5.2
  • Various bug fixes
  • Improved examples
  • Basic windows continuous integration support
  • 1000th commit!

0.9.5

  • Updates for ParaView-5.5.0
  • Bug fixes
  • Removed global namespace usage in headers
  • Fixes for gcc 4
  • Fixes for clang
  • Improved triangulation consistency in 2D and 1D
  • Improved consistency in morse-smale complex computation
  • Manifold check module
  • Point merger
  • Minimalist OBJ writer
  • Support for double and single precision for point coordinates

0.9.4

  • Windows support
  • OFF reader/writer
  • Field selector
  • Bug fixes

0.9.3

  • Updates for ParaView-5.4.1
  • New cmake structure, find_package(TTKBase) find_package(TTKVTK) now available
  • New simple python, vtk-c++ and plain c++ examples (TTK companion paper teaser)
  • Greatly accelerated merge tree features using task-based Fibonacci heaps
  • Bottleneck and Wasserstein distances between peristence diagrams
  • Lp distance between scalar fields
  • boundary mask on scalar field critical points
  • optional 3D embedding of the persistence diagram
  • optional mask array for constrained smoothing
  • bug fixes in DiscreteGradient
  • bug fixes in TopologicalSimplification
  • code cleaning

0.9.2

  • Updates for ParaView-5.4.0
  • New naming convention for vtkWrappers (name conflicts under MacOs)
  • TriangulationRequest module (to locally inspect triangulations in ParaView)
  • improved time efficiency for link queries on implicit triangulations
  • constructors fixes for VTK wrappers
  • removed legacy CMake options
  • minor bug fixes

0.9.1

  • latest triangulation API
  • improved module handling scripts
  • build fixes (in response to early user feedback)
  • updates for VTK-7.1.0 and ParaView-5.3.0
  • IdentifierRandomizer module (to shuffle segmentation ids)