Hatching

Hatching (hachure in French) and cross-hatching are artistic techniques used to create tonal or shading effects by drawing (or painting or scribing) closely spaced parallel lines. When lines are placed at an angle to one another, it is called cross-hatching.

Artists use the technique, varying the length, angle, closeness and other qualities of the lines, most commonly in drawing, linear painting, engraving, and ethnic art.

Reference

• ArtLex Art Dictionary

See also: Hatching, Albrecht Dürer