Interactive Computer Graphics ICG (ICG).ppt

Computer Graphics is defined as creation, storage, and manipulation of pictures and drawings by means of a digital computer

1. Interactive Computer Graphics (ICG)
Prsented By
Mr.G.V.Pujari

2. Introduction
•ICG is defined user – oriented systems in which the
computer is employed to create, transform, and display data
in the form of pictures or symbols. The User in the computer
graphics design system is the designer, who communicates
data and commands to the computer through any of several
input devices. The computer communicates with the user via
a Cathode Ray Tube (CRT). The designer creates an image
on the CRT screen by entering commands to call the desired
software sub - routines stored in the computer. In general,
the image is constructed out of basic elements-points, lines,
circles so on. All the drawings to be modified according to
commands of the designer –enlarged, reduced size, moved
to another location on the screen, rotated, and other
transformations.

3. COMPUTER GRAPHICS or INTERACTIVE COMPUTER
GRAPHICS
•Computer Graphics is defined as creation,
storage, and manipulation of pictures and
drawings by means of a digital computer
•

It is an extremely effective medium for
communication between people and computers
•

Computer graphics studies the manipulation of
visual and geometric information using
computational techniques
•

It focuses on the mathematical and
computational foundations of image generation
and processing rather than purely aesthetic issues

5. •Modeling, which is concerned with the description of an
object in terms of its spatial coordinates, lines, areas,
edges, surfaces, and volume
•

Storage, which is concerned with the storage of the
model in the memory of the computer
•

Manipulation, which is used in the construction of the
model from basic primitives in combination with Boolean
algebra.
•

Viewing, in the case the computer is used to look at
the model from a specific angle and presents on its
screen what it sees

6. •Thank You