WordNet

inlay with narrow strips or lines of a different substance such as gold or silver, for the purpose of decorating
the production of young from an egg (同)hatching
emerge from the eggs; "young birds, fish, and reptiles hatch"
shading consisting of multiple crossing lines (同)hatching, crosshatch, hachure
a movable barrier covering a hatchway
draw, cut, or engrave lines, usually parallel, on metal, wood, or paper; "hatch the sheet"

PrepTutorEJDIC

線影を引くこと
〈ひな・卵〉‘を'『かえす』,ふ化する / 〈陰謀・計画など〉‘を'企てる,たくらむ / 〈ひな・卵が〉『かえる』《+『out』》 / (卵の)ふ化;(…の)一かえり《+『of』+『名』》
(上下に仕切ったドアの)半戸,下とびら / (また『hatchway』)(船・飛行機の)『昇降口』,ハッチ / (壁に取りつけた)配膳窓,格子口
(製図・彫刻で)…‘に'線影を引く
細かい平行線の交差によって陰影を入れること; あや目陰影の効果

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/07/10 22:23:00」(JST)

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Veronica
Albrecht Dürer, Veronica, engraving, 1513. Example of hatching (e.g., background) and cross-hatching in many darker areas (visible if viewed at full size). Detail of Veronica

Hatching (hachure in French) is an artistic technique used to create tonal or shading effects by drawing (or painting or scribing) closely spaced parallel lines. (It is also used in monochromatic heraldic representations to indicate what the tincture of a "full-colour" emblazon would be.) When lines are placed at an angle to one another, it is called cross-hatching.

Hatching is especially important in essentially linear media, such as drawing, and many forms of printmaking, such as engraving, etching and woodcut. In Western art, hatching originated in the Middle Ages, and developed further into cross-hatching, especially in the old master prints of the fifteenth century. Master ES and Martin Schongauer in engraving and Erhard Reuwich and Michael Wolgemut in woodcut were pioneers of both techniques, and Albrecht Dürer in particular perfected the technique of crosshatching in both media.

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

Technique

The main concept is that the quantity, thickness and spacing of the lines will affect the brightness of the overall image, and emphasize forms creating the illusion of volume. Hatching lines should always follow (i.e. wrap around) the form. By increasing quantity, thickness and closeness, a darker area will result.

An area of shading next to another area which has lines going in another direction is often used to create contrast.

Line work can be used to represent colours, typically by using the same type of hatch to represent particular tones. For example, red might be made up of lightly spaced lines, whereas green could be made of two layers of perpendicular dense lines, resulting in a realistic image.

Variations

Linear hatching: Hatching in parallel lines. Normally the lines follow the direction of the described plane.^[1]
Crosshatching: Layers of hatching applied at different angles to create different textures and darker tones. At its simplest, a layer of linear hatching is laid over another layer at a 90° angle, to which further diagonal layers may be added. Other methods include layering arbitrary intersecting patches.^[1] Crosshatching in which layers intersect at slight angles can create a rippled moiré effect.^[2]
Contoured hatching: Hatching using curved lines to describe light and form of contours.^[2]

References

^ ^a ^b South 2009, p. 132.
^ ^a ^b South 2009, p. 133.

Works cited

South, Helen (2009). The Everything Drawing Book. Everything Books. ISBN 978-1-60550-446-9.

External links

"hatching" article in ArtLex Art Dictionary

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