List of placement strategies¶

PlacementStrategy¶

Configuration¶

layer: The layer in which to place the cells.
soma_radius: The radius in µm of the cell body.
count: Determines cell count absolutely.
density: Determines cell count by multiplying it by the placement volume.
planar_density: Determines cell count by multiplying it by the placement surface.
placement_relative_to: The cell type to relate this placement count to.
density_ratio: A ratio that can be specified along with placement_relative_to to multiply another cell type’s density with.
placement_count_ratio: A ratio that can be specified along with placement_relative_to to multiply another cell type’s placement count with.

ParallelArrayPlacement¶

Class: placement.ParallelArrayPlacement

FixedPositions¶

Class: placement.FixedPositions

This class places the cells in fixed positions specified in the attribute positions.

Configuration¶

positions: a list of 3D points where the neurons should be placed. For example:

{
  "cell_types": {
    "golgi_cell": {
      "placement": {
        "class": "bsb.placement.FixedPositions",
        "layer": "granular_layer",
        "count": 1,
        "positions": [[40.0,0.0,-50.0]]
        }
    },
  }
}