Sketching-People

THINK OF A CYLINDER AS A SPRING
Along the whole of its length is a stack of circles that
is exactly at a right angle to its central axis. If you were
to bend the spring, the circles would stretch on one
side and compress on the other while maintaining
their relationship to the centerline.
central axis
CROSS-SECTIONAL CIRCLES ARE KEY
Learning to draw over the surface of the cylinder will
help you develop forms that have real substance and
weight. The ability to accurately draw the crosssectional
circles on the surface of the cylinder
is what allows you to place details and
texture on a form and maintain the
illusion of three-dimensionality.
FOR PRACTICE
Stretch and bend a Slinky on a table
and draw how the ellipses change as
the coils curve in different directions.