TTK Data 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

TTK Data 1.2.0

• 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 (DistanceMatrixDistorsion)
• On-surface smoothing
• API improvements
• Bug fixes

TTK 1.1.0

• Discrete Morse Sandwich & persistent generators (arXiv:2206.13932, 2022)
• 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

TTK Data 1.0.0

TTK Data 1.0.0

TTK 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

v0.9.8

• 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

v0.9.7

• 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

v0.9.6

• 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!

v0.9.5

• 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

v0.9.4

Version bump