line weights are important in drafting of construction, used to express relationships, vertical, horizontal, zigzag, curved, diagonal, used as pattern or structure, controlling where people look or move, emphasized with light, repetition in architecture, communicate clearly, graphically (construction documents), silhouette.
1D stroke that is greater in length than width
provides graphic order
properties of length, direction, and position, thick, thin, segmented, dashed, or dotted
Draws the eye
creates rhythm and order in a space