(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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Figure 385: A photograph taken by bending a screen on which there are parallel lines of the same
                        thickness and spacing, by Naomi Asakura.
Figure
386: Composition of the cubic effect by the change of line density.
Figure 387: Expression of the cubic effect by the change of density of parallel lines.
Figure 388: Composition of density change by bending parallel lines.


 

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