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Computer Graphics
Computer Aided Graphics: (Lecture 4)
Computer Graphics
Previous Lecture
• Display Systems• Image File Formats• Output Primitives (Points)
2/9/2011 Umesh Kr. Sharma 2
Computer Graphics
Output Primitives: Line Drawing Algorithms
2/9/2011 Umesh Kr. Sharma 3
Computer Graphics
Line Scan Conversion
2/9/2011 Umesh Kr. Sharma 4
Computer Graphics
Line Scan Conversion
2/9/2011 Umesh Kr. Sharma 5
Computer Graphics
Line Scan Conversion
2/9/2011 Umesh Kr. Sharma 6
Computer Graphics
Line Scan Conversion
2/9/2011 Umesh Kr. Sharma 7
Computer Graphics
2/9/2011 Umesh Kr. Sharma 8
Computer Graphics
Direct use of line equation
2/9/2011 Umesh Kr. Sharma 9
Computer Graphics
Direct use of line equation
2/9/2011 Umesh Kr. Sharma 10
Computer Graphics
Direct use of line equation
2/9/2011 Umesh Kr. Sharma 11
Computer Graphics
Direct use of line equation
2/9/2011 Umesh Kr. Sharma 12
Procedure
Computer Graphics
Digital Differential Analyzer (DDA)
2/9/2011 Umesh Kr. Sharma 13
Computer Graphics
2/9/2011 Umesh Kr. Sharma 14
Digital Differential Analyzer (DDA)
Computer Graphics
Digital Differential Analyzer (DDA)
2/9/2011 Umesh Kr. Sharma 15
Computer Graphics
Digital Differential Analyzer (DDA)
2/9/2011 Umesh Kr. Sharma 16
Computer Graphics
Digital Differential Analyzer (DDA)
2/9/2011 Umesh Kr. Sharma 17
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 18
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 19
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 20
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 21
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 22
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 23
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 24
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 25
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 26
Computer Graphics
Bresenham’s Line Algorithm
2/9/2011 Umesh Kr. Sharma 27