DIAGRAMMING
We may use any of the drawing systems to stimulate our
visual thinking and to initiate, clarify, and assess ideas.
• When adiagram isolates asingle issue or set of
relationships for study, atwo-dimensional format
is usually sufficient.
• However, when we begin to explore the complex
spatial and relational attributes of a design, a
three-dimensional drawing system becomes
necessary.
• Particularly effective vehicles for studying the
volumetric massing and spatial dimensions of a
design are cutaway, expanded, and phantom views.
FREEHAND D AWING
R
I 201