GRIDDER is a simple interactive grid generation tool for creating orthogonal, 2D quadralateral or 3D hexahedral grids. Grid spacing can be even, logarithmic, or geometric. Gridder creates orthogonal one-dimensional, two-dimensional, or three- dimensional grids. Each dimension can have multiple regions, each with different nodal spacing. This spacing can be equal spacing, geometric spacing, or logarithmic spacing. The resulting grid can be written as AVS (Advanced Visualization Systems), Tracer 3D, Vector, or FEHM grid format.
This figure shows an example GRIDDER mesh. The spacing on the X and Y axis is uniform, on Z axis on the green block geometric with a factor 1.1, the orange block has geometric spacing with a factor 1.6, the gray block has logarithmic contracting, the maroon block has spacing using logarithmic expanding.
GRIDDER is now open source with a BSD-3 license and available on github at: https://github.com/lanl/gridder
GRIDDER User Manual is available on github at: https://lanl.github.io/gridder
GRIDDER Simple Examples: https://meshing.lanl.gov/gridder/examples.html
Copyright 2016. Triad National Security, LLC. All rights reserved. This program was produced under U.S. Government contract 89233218CNA000001 for Los Alamos National Laboratory (LANL), which is operated by Triad National Security, LLC for the U.S. Department of Energy/National Nuclear Security Administration. All rights in the program are reserved by Triad National Security, LLC, and the U.S. Department of Energy/National Nuclear Security Administration. The Government is granted for itself and others acting on its behalf a nonexclusive, paid-up, irrevocable worldwide license in this material to reproduce, prepare derivative works, distribute copies to the public, perform publicly and display publicly, and to permit others to do so. If software is modified to produce derivative works, such modified software should be clearly marked, so as not to confuse it with the version available from LANL.
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