Agriculture Reference
In-Depth Information
4
Drawing Conventions
In this chapter you will learn about:
The importance of drawing in accordance with established universal conventions
•
Similarities and differences between graphic and analog drawing
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Guidelines for ensuring accurate and complete drawings
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The use of architect's and engineer's scales
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Drawing Conventions: LanDsCape Drawings
anD MusiC sCores
The application of what are described as graphic representation conventions
is steeped in drafting traditions. Many years ago, drafting was considered a
craft, practiced and cultivated by draftsmen—professional or semiprofessional
trained employees who were prized for their skill and, in many instances,
their artistry. The artistry for which the earlier draughtsmen were known was
accomplished by hand, using a wide array of instruments and guides, drawn
within and pencil on linen and later vellum paper and Mylar film. Presentation
renderings were created using watercolor washes, colored pencils, conté crayon,
and pastels. Some people refer to those as the “good old days,” the days of ana-
log rendering. Increasingly today, the physical materials involved in drawing by
hand are being replaced by digital methods. We now draw “by hand” by manip-
ulating the keys on a computer, navigating on a computer screen with a mouse
