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Grow or shrink an outline by a set distance, with a choice of what happens at the corners.

Category: Transform | Add menu: Transform > Offset

• Geometry (any): the shape(s) to grow or shrink.
• Distance (any): the signed offset distance in mm (a number, a value field, or a list - one per item).
• Corner (pulldown): how outer corners fill: Sharp (miter), Round, Chamfer, or None. Pick it from the pulldown when unwired, or wire an integer 0-3.

• Geometry (any): the offset geometry.

Grows or shrinks an outline, keeping it a set distance from the original all the way round.

The distance is signed: positive moves the outline in one direction, negative moves it in the other. If it goes the wrong way, put a minus in front. Zero passes the geometry through unchanged.

Corner decides what happens where the offset outline turns: Sharp carries the edges out to a point, Round arcs across, Chamfer cuts a flat, None leaves the two edges unmet. With None, an offset that happens to bring the two edges to the same point closes up and stays a single piece rather than breaking apart there.

Sharp has a limit worth knowing: on a very tight corner the point would run away to infinity, so beyond a certain sharpness it falls back to a chamfer.

• A number: one offset distance for the whole geometry.
• A value field: each item is offset by the field's value at its own centroid, so different places in space get different offsets (image-driven).

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• Image Sample | Graph Mapper: value-field sources for the Distance input.
• Field-aware nodes: which inputs can read a field | The halftone pipeline