Ch2 Part 1b: This video shows how to describe the position, orientation, and frame of an object in 3D space, with examples (video 2 of 3). Chapter 2: Spatial Descriptions and Transformations (John Craig’s Introduction to Robotics book). Video sequence: (Ch2 Part 1a) video comes before this video, and (Ch2 Part 1c) video comes after this video.
TEXTBOOK REFERENCE: Introduction to Robotics - Mechanics and Control, by John Craig, 4th Edition, Pearson Education, Inc. Hoboken, NJ 07030, USA.