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Offset

offset() creates a copy of sketch geometry shifted inward or outward by a given distance.

Basic usage​

Inside a sketch, offset() offsets all existing shapes:

sketch("xy", () => {
    rect(50)
    offset(5)                  // offset all shapes outward by 5
})

Positive values offset outward, negative values offset inward.

Removing the original​

Pass true as the second argument to remove the original geometry and keep only the offset:

sketch("xy", () => {
    rect(100, 60).center()
    offset(-10, true)          // shrink inward by 10, remove the original
})

Combining with other shapes​

Offset is useful for creating walls, margins, and clearances:

sketch("xy", () => {
    rect(50)
    circle(30)
    offset(5)                  // both the rect and circle are offset
    circle(14)                 // add another shape after offsetting
})