TYPES OF TRACES.
In drawing with pencils, or other drawing material, the possible strokes are almost unlimited but most of the strokes used to draw are derived from nine basic types.
Four is to draw the profiles of a two-dimensional object or plane and the rest to apply to that plane drawing the different tones that produce the three-dimensionality or volume of the drawn object.
The strokes to draw profiles are uniform stroke A, calligraphic stroke B, broken stroke C and repetitive stroke D.
A.- Uniform trace. It is a clean line of invariable thickness with which very defined profiles are resolved.
B.- Calligraphic stroke. It is characterized by the thickness variation. It is a useful technique for when you want to emphasize a detail.
C.- Broken line. They are short lines followed one after other several times. The effect is more delicate than that achieved with A and B.
D.- Repeated trace. They are irregular lines superimposed one to another used for treatment sketched and loose.
When we refer to a calligraphic stroke we do it by similarity to the calligraphic writing in which parts of the letters are emphasized, increasing their thickness generally in the “down” sections.