Drawing
Drawing is generally considered distinct from painting, in which colored pigments are suspended in a liquid medium and are usually applied with a brush. Notable great drawers include Michelangelo, Rembrandt, Raphael and Leonardo da Vinci.
Many people choose drawing as a main art style, or they may use it to
make sketches for paintings, sculptures and other types of art. The
other term is Engineering Graphics, preferably the language of engineers
that simulates Three Dimensional capability of engineer to plan and
Implement his ideas. It comprises Projection, Development, Perspective,
Section, Intersection, and Isometric ideations.Printmaking
Woodblock printing, including images is first seen in China after paper was invented (about A.D. 105). In the West the main techniques have been woodcut, engraving and etching, but there are many others.
Etching
Etching is an intaglio method of printmaking
in which the image is incised into the surface of a metal plate using
an acid. The acid eats the metal, leaving behind roughened areas, or, if
the surface exposed to the acid is very thin, burning a line into the
plate. The use of the process in printmaking is believed to have been
invented by Daniel Hopfer (c. 1470–1536) of Augsburg, Germany, who decorated armour in this way.Etching is also used in the manufacturing of printed circuit boards and semiconductor devices.Line Art
Line art is a rather non-specific term sometimes used for any image
that consists of distinct straight and curved lines placed against a
(usually plain) background, without gradations in shade (darkness) or hue (color)
to represent two-dimensional or three-dimensional objects. Line art is
usually monochromatic, although lines may be of different colors.
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