fdtdx.RemoveFloatingMaterial

Bases: SameShapeTypeParameterTransform

Finds all material that floats in the air and sets their permittivity to air.

This constraint module identifies regions of material that are not connected to any substrate or boundary and converts them to air. This helps ensure physically realizable designs by eliminating floating/disconnected material regions.

The module only works with binary material systems (2 permittivities) where one material represents air.

Attributes:
  • background_material (str | None) –

    Name of the background material. If none, the material with the lowest permittivity is used. Defaults to None.