(2) Expression by density
It was described in the part of "Elements
of two-dimensional compositions" in Chapter 2 that the cubic effect
can be expressed by changing the density of points and lines. Let's explain
it a little more detail here.
Experiments: Points of the same size and lines with
the same thickness are aligned on a screen tone. The screen tone is rolled
followed by taking a photograph of it. Then, changes in the number of the
elements of the points and lines per unit area (density change) are observed
along with changes of the shapes. These make us feel the cubic effect.
In order to clarify the problem, Figure 387 will be examined. Take a photograph
of a tea canister (column shape) which was surrounded by a screen tone
on which parallel lines with the same thickness are drawn. The patterns
on the photograph were modified so that the thickness of the lines are
the same. The expression effect of the cubic effect by modeling elements
is well understood when we try to prepare samples in which the problem
of density is purely focused.
· As shown in Figure
388, the cubic effect is also created with the density change by bending
parallel lines with the same spacing and thickness.
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