Release 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

Release 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

ccache archives

Holds ccache archives to speed up build jobs

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 1.0.0

• Official integration into ParaView-5.10 \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

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

Release 12-17-2020

Preliminary development version, December 17th, 2020

Release 12-07-2020

Preliminary development version, December 7th, 2020

Release dev11212020

Preliminary development version, November 21st, 2020

Release dev09252020

Development version September 25, 2020