Geometry

Geometry constructors take positional arguments first, then keyword arguments. The coordinates they expose are solver variables, not plain numbers, so you can constrain them after the fact.

The constructors are in the std::layout module. The examples on this page assume a module that imports them:

use std::layout::{crect, path, polygon, rect, text};

Rectangles

let metal = rect("met1", x0=0., y0=0., w=200., h=100.);
let bounds = crect(x0=0., y0=0., x1=400., y1=300.);

rect draws a rectangle on a layer. crect makes a construction rectangle, which isn't exported and needs no layer.

Both have x0, y0, x1, y1, w, and h; see Rect for how they relate.

Polygons

polygon takes a layer and a vertex count. Set or constrain each coordinate individually:

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

outline.x2 and outline.points[2].x are the same coordinate.

Paths

A path is a centerline with a width, and optional extensions past each end:

let route = path(
    "met2", 3,
    width=20.,
    x0=0., y0=0.,
    x1=100., y1=0.,
    x2=100., y2=100.,
);

See Path and the path constructor.

Text

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

text places a label on a text layer.