Los Alamos Grid Toolbox

LaGriT: A Versatile Mesh Generation and Optimization Toolbox

LaGriT provides robust mesh generation, optimization, and maintenance for geological modeling, while its flexible tools support applications beyond earth sciences.

LaGriT (Los Alamos Grid Toolbox) is a library of tools designed for creating, optimizing, and managing meshes in two and three dimensions. Originally tailored for geology and geophysics modeling, LaGriT is versatile enough for applications in porous flow modeling, finite element analysis of fault systems, seismology, and even simulations of asteroids and hydrothermal systems.

While LaGriT is widely used in earth sciences, its adaptable functions make it suitable for any field requiring mesh structures, material property assignments, and boundary condition setups. Beyond model creation, LaGriT also supports data preprocessing and analysis of mesh and vertex-based datasets, enabling researchers to refine and examine complex simulations with ease.

Capabilities

• Representation of 2- and 3-dimensional complex geometries
• Unstructured triangle/tetrahedral and structured or unstructured quadrilateral/hexahedral meshing
• Model set-up including assigning material properties, boundary conditions, and initial conditions
• Adaptive mesh refinement, smoothing, and optimization
• 2D and 3D Delaunay triangulation conforming to complex geometry
• Output for solver packages including specialized format for FEHM, Amanzi/ATS, PFLOTRAN, and TOUGH2
• Interactive command line, batch input file, or embedded in Fortran/C interfaces (no GUI)

LaGriT Copyright
LANL Software: LA-CC-15-069 No. C15097
Copyright © 2016. Triad National Security, LLC.