computer graphics

1. BIM 5th
Roll no: 108
2/1/2018 1

2.  Introduction
 Figure
 Explanation
 Mathematics
 Conclusion
 References
2/1/2018 2

3.  Changes the size of an object
 You either expand or compress the
dimensions of the object
 Achieved by multiplying the original
coordinates of the object with the
scaling factor
2/1/2018 3

4. 2/1/2018 4

5.  three coordinates are used
 original coordinates are (X, Y, Z)
 scaling factors are (SX,SY,Sz) respectively
 produced coordinates are (X’, Y’, Z’)
2/1/2018 5

6. 2/1/2018 6

7. Scaling about a fixed point P0 (x0,y0,z0) can
be accomplished by the following:
1. translating P0 to the origin
2. scaling the object
3. translating P0 back to original position
2/1/2018 7

8.  https://www.siggraph.org/education/materia
ls/HyperGraph/modeling/mod_tran/3dscal.ht
m
 https://www.tutorialspoint.com/computer_gr
aphics/3d_transformation.htm
2/1/2018 8

9.  Thankyou
2/1/2018 9