Mesh generator, providing the mesh with tree information.
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The goal of Seeder is simple: create an octree mesh out of a given geometry.
Typically the geometry is given in the form of
As simple as this goal is the basic idea for the construction of this mesh.
The user first has to describe the cubical outline of the mesh, which has to
enclose the complete geometry.
This is referred to as
It is the root node of the octree, from which all elements of the mesh are
derived by recursive bisection in all three spatial dimensions.
The generated mesh will be written to the location provided by the
This either is simply a prefix to use for all mesh file names or a directory,
if it is a directory, the string has to include the path-separator at the end,
and the directory has to exist.
A third global setting can be used to define a minimial refinement level to
use for all elements that will be part of the final mesh.
minlevel setting provides a method to prescribe a minimal resolution
for the complete domain, if it is not provided the resolution will only be
defined by the geometrical objects you put into the bounding cube.
See the fully periodic cube
example for a mesh that uses only these three settings.
Geometric definitions, have to be given one of the attributes.
Attributes are defined by their
For some further internal details see: