Understand space. Don’t memorize it.

What projection is, why we need two views and how 2D drawings arise from 3D.

Top and front views, the ground line x₁₂ and folding the planes into one.

Projections of a line, its trace points and lines in special positions.

Defining a plane, its traces and lines lying in it.

Relative position of points, lines and planes – intersections and parallelism.

Rotation and rabatment to find true lengths and angles.

Projecting solids and determining edge visibility.

Cutting a solid with a plane and solid–solid intersections.

Isometric and oblique projection for intuitive 3D images.

Projection with elevation labels – terrain, slope lines and contours.

Central projection, vanishing points and linear perspective.

Projections of curves and surfaces – cylinder, cone, sphere and surfaces of revolution.