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Figure 9. 1 – A bit-mapped graphics

Illustrations, used by a bit-mapped graphics, are rarely created by hand with the help of
computer programs. For this purpose illustrations are used more often, prepared by an artist on a
paper or pictures which then are digitised on a scintiscanner (fig. 9.1). Therefore most graphics
editors, intended for work with bitmap illustrations, are oriented not on the creation of images, but
on their treatment.
Programmatic facilities for work with vector graphics on the contrary appointed, in the first
turn, for creation of images and less for their treatment. In the vectorial method of coding
geometrical figures, the curves and lines which make a picture are saved in memory of a computer
as mathematical formulas and geometrical abstractions, such as a circle, a square, an ellipse and
similar figures. By mathematical formulas it is
possible to describe various figures. Exactly vector
graphics is used in different computer-aided designs
for making and editing of various technical document
at implementation of project-designer works (fig. 9.2).
Vector graphics is also widely used in advertisings
agencies, designer bureaus, editorial offices and
publishing houses. Designer works, based on
application of fonts and simplest geometrical elements
decide facilities of vector graphics far simpler.
Programmatic facilities for work with fractal
graphics are intended for the automatic generation of
images by mathematical calculations. Creation of
fractal artistic composition consists not of drawing or
registration, but in programming. Fractal graphics arts
is rarely applied for creation of printing or electronic
documents. The ability of fractal graphic art to design
images often is used for the automatic generation of
unusual illustrations (fig. 9.3). Fractals are used for
Figure 9. 2 – Vector graphics representing trees, bushes, designing hypsography or
graphics sea surface and etc. in machine graphic art. Fractal
geometry is irreplaceable during the generation of artificial clouds, mountains, sea surface. From
the point of view geometry, the method of easy presentation of complex objects which shapes look
like natural is actually found, because a lot of objects of organic and inorganic nature have fractural
properties.

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