Hierarchy built-ins

inst

inst(cell: Cell, reflect?, angle?, x?, y?, xi?, yi?, construction?) -> Inst

Places a cell in the current scope.

Argument	Type	Requirement	Description
cell	Cell	Required, positional	The cell value to place, such as inverter(1200., 2000., 4).
reflect	Bool	Optional; false	Mirror the cell before rotating and translating it.
angle	Int	Optional; 0	Rotation in degrees: 0, 90, 180, or 270.
x	Float	Optional keyword	x position.
y	Float	Optional keyword	y position.
xi	Float	Optional fallback	Initial x position.
yi	Float	Optional fallback	Initial y position.
construction	Bool	Optional; false	When true, leave the instance out of layout export and of the parent bounding box.

Returns Inst. The instance, with its position and the fields its cell exports.

let placed = inst(inverter(1200., 2000., 4), x=100., y=50., angle=90);

bbox

bbox(value: Cell | Inst) -> Rect

Returns the bounding box of a cell or a placed instance, as a construction rectangle.

Argument	Type	Requirement	Description
value	Cell | Inst	Required, positional	A cell value, measured in its own coordinates, or an instance, measured after placement.

Returns Rect. A construction rectangle around the layout geometry.

let child = inverter(1200., 2000., 4);
let local = bbox(child);
let placed = inst(child, x=100., y=50.);
let transformed = bbox(placed);

Construction-only geometry does not count toward the bounding box.