Introduction of Transformations
Computer Graphics provide the facility of viewing object from different angles. The architect can study building from different angles i.e.
A Cartographer can change the size of charts and topographical maps. So if graphics images are coded as numbers, the numbers can be stored in memory. These numbers are modified by mathematical operations called as Transformation.
The purpose of using computers for drawing is to provide facility to user to view the object from different angles, enlarging or reducing the scale or shape of object called as Transformation.
Two essential aspects of transformation are given below:
There are two complementary points of view for describing object transformation.
An example that helps to distinguish these two viewpoints:
The movement of an automobile against a scenic background we can simulate this by
Types of Transformations:
Note: Translation, Scaling, and Rotation are also called as Basic Transformations.