Make: Volume 90

dragknife tools like vinyl and craft cutters. These

paths are usually what the toolhead is going

to follow if you’re using it in a mode other than

recreating a raster image row by row.

Centerline tracing is a more challenging

algorithm for the app to execute well (Figure

N

). Rather than simply finding where there is

and is not a shape and describing the boundary,

Centerline tracing has to determine the midpoint

between the edges. This can be very useful for

operations such as V-carving on a router, but may

require some manual editing to be satisfactory as

a path.

EDITING AND SAVING

Your vector trace can be edited using the

Inkscape native path ...