boolean

boolean(
a: elementsstr,b: elementsstr,op: string,fill-rule-a: autostring,fill-rule-b: autostring,eps: autofloat,ignore-marks: bool,ignore-hidden: bool,name: nonestring,..style: style,
) 

Performs a boolean operation on the paths produced by two CeTZ bodies. The supported operations are "union", "intersection", "difference", and "xor".

Each operand can either be one or more type:elements or the name of an already-defined element (a string).

All input subpaths must be closed and lie in a single z-plane. The output is a single path drawable in the z-plane of the first input.

Each operand has its own fill-rule, which decides how its self-overlapping or nested subpaths are interpreted as a filled region before the boolean operation runs. By default (auto) the fill-rule is inferred from the operand: if every path drawable produced by the body agrees on one fill-rule (e.g. the body is a single compound-path(..., fill-rule:
"even-odd")), that value is used; otherwise it falls back to boolean’s own resolved style.

boolean(
  { rect((-1, -1), (1, 0)) },
  { circle((0, 0), radius: 0.8) },
  op: "difference",
  fill: blue,
)

rect((-1, -1), (1, 0), name: "r")
circle((0, 0), radius: 0.8, name: "c")
boolean("r", "c", op: "difference", fill: blue)

a:

elements or str

First operand. Either an element body or the name of an existing element.

b:

elements or str

Second operand. Either an element body or the name of an elementxisting element.

op:

string

One of "union", "intersection", "difference", "xor".

fill-rule-a:

auto or string

"non-zero" or "even-odd", applied to a. If auto, inferred from a’s drawables

fill-rule-b:

auto or string

"non-zero" or "even-odd", applied to b. If auto, inferred from b’s drawables

eps:

auto or float

Numerical accuracy. auto uses an automatically determined value.

ignore-marks:

bool

Drop marks from the inputs (default: true).

ignore-hidden:

bool

Drop hidden elements from the inputs (default: true).

name:

none or string

..style:

style