Search Results for "computational geometry"
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Showing 56 open source projects for "computational geometry"
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S2 Geometry
Computational geometry and spatial indexing on the sphere
s2geometry is Google’s open source geometry library designed for representing, analyzing, and manipulating geometric shapes on a sphere rather than a flat plane. This makes it particularly suited for applications involving geospatial data, such as mapping, spatial indexing, and geographic information systems (GIS). The library provides a robust mathematical framework for spherical geometry, allowing developers to work with polygons, points, and regions on the Earth’s surface using consistent... -
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PicoGK
PicoGK is a compact and robust geometry kernel
PicoGK is a compact, open-source geometry kernel created by LEAP 71 for Computational Engineering. It is designed to let engineers generate complex physical objects through code instead of traditional manual CAD workflows. The library uses a deliberately reduced but powerful instruction set for building computational geometry. It supports geometry generation through voxel fields, lattices, implicit shapes, meshes, and robust Boolean operations. ... -
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CGAL
The Computational Geometry Algorithms Library
CGAL or the Computational Geometry Algorithms Library is a C++ library that gives you easy access to a myriad of efficient and reliable geometric algorithms. These algorithms are useful in a wide range of applications, including computer aided design, robotics, molecular biology, medical imaging, geographic information systems and more. CGAL features a great range of data structures and algorithms, including Voronoi diagrams, cell complexes and polyhedra, triangulations, arrangements of curves, surface and volume mesh generation, spatial searching, alpha shapes, geometry processing, and many more. ... -
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gptoolbox
Matlab toolbox for Geometry Processing
gptoolbox is a comprehensive MATLAB toolbox for geometry processing, optimization, and image processing. It provides a wide range of utility functions for working with triangle and tetrahedral meshes, making it useful for tasks in computer graphics, computational geometry, and 3D modeling. The toolbox includes wrappers for external software such as TetGen, Triangle, QSlim, and meshfix, as well as functions for mesh smoothing, cleanup, deformation, and parameterization. ... -
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KACTL
KTH algorithm competition template library
KACTL (the KTH Algorithmic Contest Template Library) is an extensively curated and high-performance C++ algorithms library created by the competitive programming team at the Royal Institute of Technology (KTH) to serve as a trusted, battle-tested codebase for algorithmic contests, programming competitions, and general algorithm development. The repository aggregates dozens of concise implementations of essential data structures, numerical methods, graph algorithms, string processing tools, computational geometry routines, and optimization techniques, all designed with speed, correctness, and compactness in mind. Instead of reinventing algorithms on the fly during contests like ACM-ICPC or Codeforces rounds, competitors can import exactly the component they need — whether a segment tree with lazy propagation, a minimum cost flow solver, or a fast Fourier transform — and focus their energy on problem logic and strategy. -
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Flatbush
A very fast static spatial index for 2D points and rectangles in JS
...An efficient implementation of the packed Hilbert R-tree algorithm. Enables fast spatial queries on a very large number of objects (e.g. millions), which is very useful in maps, data visualizations and computational geometry algorithms. -
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LAMMPS
Public development project of the LAMMPS MD software package
...It is designed for high-performance computing and can run efficiently on desktops, clusters, and supercomputers. The software is widely used in materials science, chemistry, physics, nanotechnology, soft matter, and computational engineering. It supports many interaction models, including pair potentials, many-body potentials, reactive force fields, bonded interactions, long-range electrostatics, and user-extendable packages. LAMMPS is script-driven, so users can define simulation geometry, force fields, integration methods, output, and analysis behavior through input files. ... -
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Book4_Power-of-Matrix
Book_4_Matrix Power | The Iris Book: From Addition, Subtraction
Book4_Power-of-Matrix is an open educational repository that forms part of the Visualize-ML book series, focusing on explaining matrix mathematics and linear algebra concepts through visual and intuitive methods. The project is designed to help readers progress from basic arithmetic toward machine learning fundamentals by building a strong conceptual understanding of vectors, matrices, and their operations. It combines explanatory text, diagrams, and Python examples to bridge theory and... -
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CodeWorld
Educational computer programming environment using Haskell
CodeWorld is an educational programming environment that uses a Haskell-inspired language to teach computational thinking through graphics and interactive animation. The web-based IDE provides immediate visual feedback: students write code that draws shapes, composes pictures, and responds to events to build simple games and simulations. Its API emphasizes mathematics and geometry rather than low-level UI details, making it approachable for classrooms and self-learners. ... -
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Cinder
Community-developed library for professional-quality creative coding
...Cinder is a C++ library for programming with aesthetic intent - the sort of development often called creative coding. This includes domains like graphics, audio, video, and computational geometry. Cinder is cross-platform, with official support for macOS, Windows, Linux, iOS, and Windows UWP. Cinder is production-proven, powerful enough to be the primary tool for professionals, but still suitable for learning and experimentation. Full keyboard, mouse (including scroll wheel), window, and file drag and drop. -
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Artisan-PY39
Computational tool for lattice generation
Artisan is an implicit modelling & computational engine for generating complex lattice structure. Artisan supports the strut, TPMS and geometric shape lattice infill for any given geometry. It generates beautiful periodic lattice, mesh lattice and conformal lattices without costing of lots of hardware resources. Because the engine is based on Python and C++, Artisan could offer a combined experience of the speedy customized development and computational performance without compromising the quality of modelling results. ... -
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BravoVLM
Aircraft Configuration tool
Aircraft configuration via a graphical user interface. Analysis tools include homebrew 2D airfoil analysis and airfoil invert design optimization. Open-source tool AVL for stability analysis. User can define wings and fuselage, render the aircraft in 3D and do some performance analysis. The geometry can be exported into a 3D Step file. More features will be added in the future. -
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CFDTool - CFD & OpenFOAM GUI Toolbox
CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
CFDTool - "CFD Simulation Made Easy" CFDTool is a fluid dynamics toolbox for modeling and simulation of flows with coupled heat transfer. Based on FEATool Multiphysics (https://www.featool.com), CFDTool is specifically designed to make advanced fluid mechanics and heat transfer simulations both easy and enjoyable. - Completely stand-alone and cross-platform self-contained toolbox - Optionally use as MATLAB Add-On toolbox - Fully integrated and easy to use MATLAB GUI - Modeling and... -
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Abscom
A C11 library of reusable data structures and platform utilities.
...An ultimate layer tops the scientific stack off with computational backend selection (CPU / AVX SIMD / GPU stub), a Micrograd-style scalar autograd engine. -
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PicoGK Runtime
PicoGK Runtime is the C++ framework behind PicoGK
PicoGK Runtime is the C++ runtime framework behind PicoGK, LEAP 71’s compact geometry kernel for Computational Engineering. It provides the lower-level backbone that allows PicoGK applications to execute robust geometry operations. The repository is mainly intended for users who want to compile the runtime themselves instead of relying on available installers. It is built around established open-source foundations, including OpenVDB and GLFW. -
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giv, The G(reat|tk|NU) Image Viewer, is a 8-bit to 32-bit and floating point image and vector viewer for gtk+. It is designed especially for scientific vision and computational geometry and has support for drawing vector graphics on top of an image.
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Gabedit is a Graphical User Interface for FireFly (PC-Gamess), Gamess-US, Gaussian, Molcas, Molpro, MPQC, NWChem, OpenMopac, Orca, PSI4 and Q-Chem computational chemistry packages.
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PyMesh
Geometry processing library for Python
PyMesh is a codebase developed by Qingnan Zhou for his PhD research at New York University. It is a rapid prototyping platform focused on geometry processing. PyMesh is written with both C++ and Python, where computational intensive functionalities are realized in C++, and Python is used for creating minimalistic and easy-to-use interfaces. PyMesh is a rapid prototyping platform focused on geometry processing. It provides a set of common mesh processing functionalities and interfaces with a number of state-of-the-art open-source packages to combine their power seamlessly under a single developing environment. ... -
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Wykobi is an efficient, robust and simple to use multi-platform 2D/3D computational geometry library written in C++. Wykobi provides a concise, predictable, and deterministic interface for geometric primitives and complex geometric routines.
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Construct2D
COmputational fluid dyNamics STRUctured grid CreaTor for 2D airfoils
Construct2D is a grid generator designed to create 2D grids for CFD computations on airfoils. The grids are generated in Plot3D format. The only required input file is the set of coordinates defining the airfoil geometry, using the same format as XFoil, the popular vortex-panel code for airfoil analysis. Construct2D can create grids with O topology (recommended for airfoils with a blunt trailing edge) or C topology (recommended for airfoils with a sharp trailing edge). Now available in... -
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CFML fabric simulation engine
3D drape simulation engine using particle based method
...Using the following open sources: - D. Pritchard.org, "freecloth", http://davidpritchard.org - J. O'Rourke, "Computational Geometry in C", http://cs.smith.edu/~jorourke/books/compgeom.html - J.R. Chewhcuk, "Triangle" mesh generator, https://www.cs.cmu.edu/~quake/triangle.html - OpenCV library, https://opencv.org - A. Mustun, "dxflib", https://sourceforge.net/projects/dxflib/ - J. Mahovsky and B. Wyvill, Pluecker Coordinates, - J.T. Klosowski, "k-DOP" - Delzip, http://www.delphizip.org - OpenMP, MS Visual C++... -
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Fast Expansions
Fast implementation of multiple precision arithmetics.
Fast implementation of multiple precision arithmetics using expansions as described in Shewchuk, J. R.. "Adaptive precision floating-point arithmetic and fast robust geometric predicates." Discrete & Computational Geometry 18.3 (1997): 305-363.. -
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ComputationalGeometry
2D environment demonstrating computational geometry algorithms
This is an application made for educational purposes. It demonstrates some basic algorithms of computational geometry in 2D space. You can create, edit and delete points and vectors and then choose them as the input for algorithms selectable from the menu. Import and export from a to XML files is also possible. Many thanks to GeoSoft for providing open-source library G which was used for 2D graphics. You can find it here: http://geosoft.no/graphics/index.html -
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Polaris CFD
Aerodynamics simulations based on gas kinetics
Polaris CFD is a complete CFD software suite for Aerodynamics simulations created by Alta Dynamics. It is validated to provided accurate results for both internal and external flow problems. Its viewer is built on ParaView for pre and post processing. -
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Javascript-Voronoi
JS implementation of Fortune's algorithm to compute Voronoi cells
This repository implements Steven Fortune’s algorithm (sweep-line method) for generating Voronoi diagrams in JavaScript, providing a performant browser-side solution for computational geometry of planar point sets. With this library you can feed a set of sites (points) and compute their Voronoi cells – the partition of the plane into regions closest to each site – in O(n log n) time. It’s especially useful in web UIs, visualizations, interactive maps, and generative-art contexts where you need dynamic tessellations or diagrammatic layouts. ...
