intersections

intersections(
name: str,..elements: elementsstr,samples: int,
) 

Calculates the intersections between multiple paths and creates one anchor per intersection point.

All resulting anchors will be named numerically, starting at 0. i.e., a call intersections("a", ...) will generate the anchors "a.0", "a.1", "a.2" to "a.n", depending of the number of intersections.

intersections("i", {
  circle((0, 0))
  bezier((0,0), (3,0), (1,-1), (2,1))
  line((0,-1), (0,1))
  rect((1.5,-1),(2.5,1))
})
for-each-anchor("i", (name) => {
  circle("i." + name, radius: .1, fill: blue)
})

You can also use named elements:

circle((0,0), name: "a")
rect((0,0), (1,1), name: "b")
intersections("i", "a", "b")
for-each-anchor("i", (name) => {
  circle("i." + name, radius: .1, fill: blue)
})

You can calculate intersections with hidden elements by using @@hide().

name:

str

Name to prepend to the generated anchors. (Not to be confused with other name arguments that allow the use of anchor coordinates.)

..elements:

elements or str

Elements and/or element names to calculate intersections with.

Elements referred to by name are (unlike elements passed) not drawn by the intersections function!

samples:

int

Default: 10

Number of samples to use for non-linear path segments. A higher sample count can give more precise results but worse performance.