•Drawing from
observation has challenges in accuracy than with other types of drawings. Drawing a three-dimensional form on a
2-dimensional surface of
translation sometimes poses a problem.
•A sighting stick is
the basic tool for the process of sighting.
•*Always keep your arm
full extended and elbow locked when sighting. This establishes a constant scale, which is very important
for sighting proportional relationships.
•You can tip stick
left or right not front or backwards. *this can be tempting for establishing
foreshortening.
•Trick: imagine the
stick is within a 2D pane of glass – tip it front or back it will break.
•A landmark is
identifiable point on any form that you can refer back to. - an easily identifiable reference
point.
•There are 3 essential
uses for sighting that aid in observing and recording information
accurately.
Application of sighting:
Relative
Proportions
•Make relative
measurement by measuring holding the stick with your thumb.
•Achieve relative
Landmarks
•Establish relative
measurement of the distance between any two parts or points on the form.
•With this you can
establish greater accuracy in your drawings.
•To achieve relative
proportions, begin with establishing the relationships between the total width of the
object (distance from the
farthest left to the farthest right point)
•By rotating the stick
you can observe how many times the width of the form repeats itself in the
height of the form
•You can then maintain
the same relationship in drawing the form, no matter how large or small you may choose to represent it.
•Sight what you
perceive as the smallest measurement first, and
then compare it to the larger measurement.
then compare it to the larger measurement.
•Always
work from general to specific always recording the larger, simpler relationships before
the detail.
•Sight from One
Landmark to the next. Remember the landmark indicates any
point on a form that you find and can refer
back to over and over again. Landmarks usually occur at places
when different parts of a form meet or come together (This is
called Point of Articulation). Or when there is a sudden directional change along the edges or surface of a form.
back to over and over again. Landmarks usually occur at places
when different parts of a form meet or come together (This is
called Point of Articulation). Or when there is a sudden directional change along the edges or surface of a form.
Look for 3
or 4 landmarks horizontal or vertically to create plumb lines





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