4.1.1. Create OcTree MeshΒΆ

OcTree meshes used in the E3D version 1 code are created using the program create_octree_mesh_e3d.exe. Parameters necessary for defining the OcTree mesh are set in the input file; referred to here as octree_mesh.inp.

To generate the OcTree mesh, open a command window. Type the path to the code create_octree_mesh_e3d.exe, followed by a space, followed by the path to the input file.

../../_images/run_create_mesh.png

The program create_octree_mesh_e3d.exe creates 5 output files:

  • 3D_mesh.txt: the underlying regular tensor mesh. This mesh is comprised of the smallest cell size and is very large (>> 1M cells). As a result, it is unwise to plot this mesh.

  • 3D_core_mesh.txt: A 3D regular tensor mesh defining the core region.

  • octree_mesh.txt: OcTree mesh used in the forward modeling and inversion codes

  • active_cells_topo.txt: active cells model on the OcTree mesh. Cells are active if assigned a value of 1 and inactive if assigned a value of 0

  • create_octree_mesh_e3d.log: log file