Browse 104,700+ pen and ink drawings stock illustrations and vector graphics available royalty-free, or search for line drawings to find more great stock images and vector art. River landscape with ...

A new elastic silver ink could let users jot down electrical circuits and wiring on walls and paper with a regular ballpoint pen (ACS Nano, 2015, DOI: 10.1021/acsnano.5b05082).

This paper presents a robotic system that can perform automated pen-and-ink drawing based on visual feedback, using a proposed algorithm for stroke trajectory planning. The algorithm first converts ...