# BlobInitializer Steppable¶

BlobInitializer steppable is used to lay out circular blob of cells on the lattice.

An example syntax where we create one circular region of cells in the lattice is presented below:

<Steppable Type="BlobInitializer">
<Region>
<Gap>0</Gap>
<Width>5</Width>
<Center x="100" y="100" z="0"/>
<Types>Condensing,NonCondensing</Types>
</Region>
</Steppable>


Similarly as for the UniformFieldInitializer users can define many regions each of which is a blob of a particular center point, radius and list of cell types that will be assigned to cells forming the blob. Listing types in the <Types> tag follows same rules as in the UniformInitializer.

Note

Original (and deprecated) syntax of this plugin looks as follows:

<Steppable Type="BlobInitializer">
<Gap>0</Gap>
<Width>5</Width>
<CellSortInit>yes</CellSortInit>

The blob is centered in the middle of th lattice and has radius given by <Radius> parameter. All cells are initially squares (or cubes in 3D) where <Width> determines the length of the cube or square side and <Gap> determines space between squares or cubes. <CellSortInit> tag and value yes is used to initialize cells randomly with type id being either 1 or 2 . Otherwise all cells will have type id 1. This can be easily modified in Python .