On the Skeleton of Simple CSG Objects
Debasish Dutta, Christoph M. Hoffmann · Journal of Mechanical Design · 1993
The skeleton (medial-axis surface) of an object is the locus of all points in the object’s interior that have equal minimum distance from at least two distinct parts of the boundary. The skeleton can be used in blending, motion planning, medical tomography, computer vision, and in mesh generation. We discuss some simple but frequently encountered shape elements of the skeleton of CSG objects, and investigate properties of trimming surfaces delimiting the faces of skeletons.