Geometry built-ins

These constructors add geometry to the current cell. Coordinate arguments are Float expressions.

rect

rect(layer: String, x0?, y0?, x1?, y1?, w?, h?, x0i?, y0i?, x1i?, y1i?) -> Rect

Draws an axis-aligned rectangle on a layer.

Argument	Type	Requirement	Description
layer	String	Required, positional	A drawing layer from the technology file.
x0	Float	Optional keyword	Constrains the left edge.
y0	Float	Optional keyword	Constrains the bottom edge.
x1	Float	Optional keyword	Constrains the right edge.
y1	Float	Optional keyword	Constrains the top edge.
w	Float	Optional keyword	Constrains the width, x1 - x0.
h	Float	Optional keyword	Constrains the height, y1 - y0.
x0i	Float	Optional fallback	Initial left edge, used when x0 is otherwise free.
y0i	Float	Optional fallback	Initial bottom edge, used when y0 is otherwise free.
x1i	Float	Optional fallback	Initial right edge, used when x1 is otherwise free.
y1i	Float	Optional fallback	Initial top edge, used when y1 is otherwise free.

Returns Rect. The rectangle.

let gate = rect("poly", x0=0., y0=0., w=80., h=400.);

Give enough values or constraints to pin the rectangle down. If you drag an under-constrained rectangle in the GUI, it adds the missing initial values.

crect

crect(x0?, y0?, x1?, y1?, w?, h?, layer?, x0i?, y0i?, x1i?, y1i?) -> Rect

Creates a construction rectangle: usable in constraints and as bounds, but not exported.

Argument	Type	Requirement	Description
x0	Float	Optional keyword	Constrains the left edge.
y0	Float	Optional keyword	Constrains the bottom edge.
x1	Float	Optional keyword	Constrains the right edge.
y1	Float	Optional keyword	Constrains the top edge.
w	Float	Optional keyword	Constrains the width.
h	Float	Optional keyword	Constrains the height.
layer	String	Optional keyword	Optional layer to associate with the rectangle.
x0i	Float	Optional fallback	Initial value for x0.
y0i	Float	Optional fallback	Initial value for y0.
x1i	Float	Optional fallback	Initial value for x1.
y1i	Float	Optional fallback	Initial value for y1.

Returns Rect. The construction rectangle. It takes part in constraints but is left out of layout export.

let bounds = crect(x0=0., y0=0., w=1000., h=800.);

polygon

polygon(layer: String, points: Int, x0?, y0?, …, x0i?, y0i?, …) -> Polygon

Creates a polygon with a fixed number of vertices, each constrained on its own.

Argument	Type	Requirement	Description
layer	String	Required, positional	A drawing layer.
points	Int	Required, positional	Number of vertices. Coordinate indices run from 0 to points - 1.
xN	Float	Optional keyword	x coordinate of vertex N.
yN	Float	Optional keyword	y coordinate of vertex N.
xNi	Float	Optional fallback	Initial x coordinate of vertex N.
yNi	Float	Optional fallback	Initial y coordinate of vertex N.

Returns Polygon. The polygon.

let triangle = polygon("met1", 3,
    x0=0., y0=0.,
    x1=100., y1=0.,
    x2=50., y2=80.,
);

path

path(layer: String, points: Int, width?, begin_extension?, end_extension?, x0?, y0?, …) -> Path

Creates a constant-width path along a centerline.

Argument	Type	Requirement	Description
layer	String	Required, positional	A drawing layer.
points	Int	Required, positional	Number of centerline points.
width	Float	Optional keyword	Full width of the path. Must not solve to a negative value.
begin_extension	Float	Optional keyword	How far the path extends past its first point.
end_extension	Float	Optional keyword	How far the path extends past its last point.
xN	Float	Optional keyword	x coordinate of centerline point N.
yN	Float	Optional keyword	y coordinate of centerline point N.
widthi	Float	Optional fallback	Initial width.
begin_extensioni	Float	Optional fallback	Initial begin extension.
end_extensioni	Float	Optional fallback	Initial end extension.
xNi / yNi	Float	Optional fallback	Initial coordinates of centerline point N.

Returns Path. The path.

let route = path("met2", 2, width=20., x0=0., y0=0., x1=300., y1=0.);

text

text(value: String, layer: String, x: Float, y: Float) -> ()

Places a text label on a layer.

Argument	Type	Requirement	Description
value	String	Required, positional	The text.
layer	String	Required, positional	Layer for the label.
x	Float	Required, positional	x coordinate of the label origin.
y	Float	Required, positional	y coordinate of the label origin.

Returns (). Nothing; the label is added to the current cell.

text("VDD", "text.label", 40., 80.);