ANALYTICAL DRAWING
In drawing analytically, we seek to merge two
approaches-describing the outer configuration of
surfaces of an object and explaining its inner
structural natureand the way its parts are arranged
and joined inspace. Unlike contour drawing, in which
we proceed from p topart, analytical drawing
art
proceeds from the wholeto the subordinate parts and
finally the det ails. Subordinating parts and details to
the structure of the overall formprevents apiecemeal
approachthat can resu lt infaulty proportional
relat ionships and a lack o unity.
f
• Begin an analytical drawing with ligh freely drawn
t,
lines. Draw these lines in an exploratory manner to
block out and establish a transparent volumetric
frameworkfor aform or composition.
• These exploratory lines are diagrammatic in nature,
serving to est ablish and explain the underlying
geometry and structure of the subject.
• These initial traces are also called regulating lines
because they can be used to locate points, measure
size and distance, find centers, express
perpend icu lar and tangential relationships, and
establish alignments and offsets.
• Regulating lines represent visual judgments to be
confirmed or adjusted. Do not erase any previously
drawn lines. If necessary, restate alinecorrecting basic shapes and checking the relative
proportions between the parts.
• Always strive for incremental improvement over the
last line drawn.
190 /ARCHITECTURAL GRAPH ICS