What is hatching?

  • (noun): The production of young from an egg.
    Synonyms: hatch
    See also — Additional definitions below


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.

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Some articles on hatching:

Christophe Butkens
... Butkens developed his own hatching system but it was used by him in an inconsequent way which led to the misunderstandings and the resultant sudden ... His hatching method is published in the book Annales genealogiques de la maison de Lynden (Antwerp, 1626), which was seen flagrant as it falsified the House of Lynden genealogy that was ... Spener maintained that the first heraldic hatching system was invented by Butkens ...
Entobdella Soleae - Hatching Strategies
... soleae consist of two hatching strategies quick hatching in the presence of sole skin mucus and spontaneous hatching in the absence of the host ... During the natural cycle of illumination, egg hatching is rhythmical where most larvae emerge a few hours after dawn ... are in contact with sole body mucus during the illumination cycle, hatching is enhanced ...
Hatching - 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 ...
Saga Pedo - Life Cycle
... The female attains sexual maturity three to four weeks after hatching and starts laying eggs ... At 20°C or more, the eggs start to develop immediately, the nymphs hatching after approximately 40 to 85 days (again depending on the temperature) ... After hatching, which occurs around May, the nymphs go through six or seven instars before attaining sexual maturity, and live for four to six months after that ...
Hatching System - Dispute of Petra Sancta and De La Colombière
... The primacy of developing a hatching method belongs undoubtedly to Zangrius ... to Zangrius‘ system such as different hatching for the colour Sable ... Low Countries (where by all probability the heraldic hatching systems were invented), that is to say from the neighbouring territories to France, visited ...

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