MECH 290 Lecture Notes - Lecture 11: Multiview Orthographic Projection, Tangent, Modelling Clay

• School: McGill University
• Department: Mechanical Engineering
• Course: MECH 290
• Professor: Fiona Zhao

Document Summary

To make and interpret drawings you need to know how to create projections and understand the standard arrangement of views. You also need to be familiar with the geometry of solid objects and be able to visualize a 3d object that is represented in a 2d sketch or drawing. For example, a front view shows the true shape and size of surfaces that are parallel to the front of the object. The system of views is called multiview projection. Any object can be viewed from six mutually perpendicular directions, The three principal dimensions of an object are width, height, and depth. The front view shows only the height and width of the object and not the depth. In fact, any principal view of a 3d object shows only two of the three principal dimensions; the third is found in an adjacent view. Height is shown in the rear, left-side, front, and right- side views.