Spacers

geometry={
  kind='spacer', 
    object={
      length={
        origin = {0.0,0.0,0.0}, -- starting point of the spacer
        vec = {1.0,0.0,0.0}, -length and axis of first filament
        radius = 0.001 -- radius of the filament
        only_surface = true, -- If not defined default is set to false
        filament_gap = 0.02, -- distance between filament
      },
      width={
        origin = {0.0,0.0,0.0}
        vec = {0.0,0.0,1.0},
        radius = 0.001,
        only_surface = true, -- If not defined default is set to false
        filament_gap = 0.02,
      },
      interwoven = true, --switch between interwoven and non-interwoven
                        -- spacer generation
    }
} -- single spacer

-- This is the standard seeder configuration, that should document the possible
-- and required configuration options.
-- It should always run out of the box!
-- ------------------------------------------------------------------------- --

-- Location to write the mesh in.
-- Note the trailing path seperator, needed, if all mesh files should be in a
-- directory. This directory has to exist before running Seeder in this case!
folder = 'mesh/'

-- Some comment, you might want to put into the mesh file for later reference.
comment = 'Simple Sample Seeder Mesh'

-- Debug output can be used to output prelimnary tree in restart format
-- and this restart file can be converted to vtu format by Harvester
debug = { debugMode = true, debugMesh = 'debug/' }

-- Bounding cube: the root node of the octree, defining the complete universe,
-- from which all elements are derived by recursive bisection.
-- The origin is the corner from which on the cube is spanned with the given
-- length in each direction.
bounding_cube = { origin = {-1.0, -1.0, -1.0},
                  length = 2.0 }

-- A minimum level, by which all parts in the computational domain should at
-- least be resolved with. Default is 0.
minlevel = 6

-- *********************** Table of spatial objects *********************** --
-- Each spatial object is defined by an attribute and some geometric entity
-- attached to this attribute. Attributes might be defined multiple times.
-- Attributes are described by a kind (boundary, seed or refinement), a level
-- and maybe further kind specific values, like a label for the boundary.
-- Geometric objects might by right now:
-- - canoND (point, line, plane or box)
-- - STL
-- - Sphere
-- - Cylinder
--
-- Periodic boundaries are special, spatial objects of this kind can only make
-- use of geometric objects of the kind 'periodic'.
spatial_object = {
  {
    -- Defining a domain boundary
    attribute = { kind = 'boundary', -- or seed, refinement
                  label = 'solid',   -- some label to identify the boundary
                                     -- condition
                  level = 1          -- level to refine this object with,
                                     -- default = 0
                },
    -- Example for spacer
    geometry = {                  -- defining the geometry of the spacer
      kind = 'spacer',
      object = {
        length = {
          vec = {2.0,0.0,0.0},
          filament_gap = 1.0,
          radius = 0.10,
          origin = {-1.0,0.0,-1.0+1.0/2}
        },
        width = { 
          vec = {0.0,0.0,2.0},
          filament_gap = 1.0,
          radius = 0.10,
          origin = {-1.0+1.0/2,0.0,-1.0}
        },
          interwoven = true
      }
    }
  },
  -- Example for rotated spacer
--    geometry = {
--      kind = 'spacer',
--      object = {
--        length = {
--         -- rotated along x-axis 60 angle
--          vec = {8.0*math.cos(60*math.pi/180),0.0,8.0*math.sin(60*math.pi/180)},
--          filament_gap = 1.0,
--          radius = 0.1,
--          origin = {-0.0,0.0,-4.0}
--        },
--        width = { 
--         -- rotated along z-axis 30 angle
--          vec = {8.0*math.sin(-30*math.pi/180),0.0,8.0*math.cos(-30*math.pi/180)},
--          filament_gap = 1.0,
--          radius = 0.1,
--          origin = {-0.0,0.0,-4.0}
--        },
--          interwoven = false
--      }
--    }
--  },

  {
    -- Defining a seed to identify the part of the computational domain in
    -- the universe cube.
    attribute = { kind = 'seed' },
    geometry = { -- single point definition with a canoND object.
                 kind = 'canoND',
                 object = { origin = {-0.0, -1.0, -1.0} }
               }
  }

} -- end of spatial objects
-- ************************************************************************ --