Computer Graphics:Module 3

Module 3: 2D Geometric Transformations


Que: Explain 2D Transformations in detail.


•Definition: Transformation alters the coordinates of object to change the orientation, size or shape of the object.

Different 2D Transformations:

a. Translation: Changing position of object from one place to other.


b. Rotation: Angular displacement of object with some angle (ϴ)



c. Scaling: Increasing or decreasing size of object.



d. Reflection: Mirror image of the object.



e. Shear: Deformation/Slanting in the shape of the object.







Que: Prove that 

i) Successive Translation is additive.
ii) Successive Rotation is additive
iii) Successive Scaling is multiplicative


 Que: Prove that Rotation Scaling Commute.



Que: Derive a composite matrix for Rotation about Pivot Point.