pone.0232641.g005.tif (1.71 MB)
Download fileHistorical examples for using the circular dots of diameters equal to the vertical and horizontal projections of dot side (which is equal to the pen nib).
figure
posted on 2020-05-28, 17:27 authored by Mohammad Ali Jalal YaghanPhoto source: parts of page 29 of [R14].
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