Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [image-making processes and techniques]
6. [perspective and shading techniques]
7. perspective (technique)
8. linear perspective (technique)

Anotations

Scope note:

Refers to a perspective system in which there are two vanishing points, generally characterized by a rectangular form represented at an angle to the picture plane, so that horizontal parallels recede to points to the right and the left but vertical lines remain parallel to the picture plane.