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COMPUTER GRAPHICS

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Written in
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This document contains: Raster scan graphics, Dda algorithm, Bresenhams algorithm, Antialiasing lines, Coordinate system, World Coordinate System, User Coordinate System, Display Coordinates, Database Structures for Graphic Modeling, hierarchical model, network model, relational model, Geometric model data, Transformation of Geometry(Translation, Scaling, Reflection or Mirror, Rotation, Rotation about an arbitrary point, Reflection about an arbitrary line, Scaling about an arbitrary point, 3d transformations, Mathematics of projection(Orthographic projection), clipping, Cohen Sutherland clipping algorithm in 2D, Sutherland Hodgmen polygon clipping algorithm in 2D, Hidden line/surface removal, Back-face removal, Z-buffer (depth buffer), Depth sort algorithm.

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Institution
BVRIT
Course
COMPUTER GRAPHICS

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CADCAM UNIT II
COMPUTER GRAPHICS
M SIRISHA

,TOPIS TO BE COVERED
S No Unit Topics to be covered

1 Raster Scan graphics

2 Coordinate system

3 Database structure for graphics modelling

4 Transformation of geometry

5 Problems on Transformation
II
6 2D and 3D transformations

7 Problems on 2D transformations

8 Mathematics of projections

9 Clipping- Examples

10 Hidden surface removal

,UNIT II TLO’S

1. Understands the Raster scan display technique.
2. Explain the database structure for graphic
modelling.
3. Able to derive the basic transformation matrix.
4. Explain the mathematics behind the projections
clipping.

, RASTER SCAN GRAPHICS
• The graphic software involves the conversion of the vectorial
information of the drawing into its equivalent raster format such
that the frame buffer can be filled with that information.
• This process is called rasterization.
• Two common forms of elements present are straight lines, circle
• Algorithms developed for these elements are
i. DDA Algorithm
ii. Bresenhams Algorithm
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Institution
BVRIT
Course
COMPUTER GRAPHICS
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Document information

Uploaded on
May 25, 2022
Number of pages
60
Written in
2020/2021
Type
Class notes
Professor(s)
Sirisha
Contains
All classes

Subjects

  • raster scan graphics
  • dda algorithm
  • bresenhams algorithm
  • antialiasing lines
  • coordinate system
  • world coordinate system
  • user coordinate system
  • display coordinates
  • database structures for graphic modeling
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