This chapter discuss the purpose of the components required for successful communications; describe these uses of computer communications: wireless messaging services, wireless Internet access points, cybercafés, global positioning systems, collaboration, groupware, voice mail, and Web services;
Trang 1Computer Graphics
Lecture 23 Fasih ur Rehman
Trang 2Last Class
• Clipping Algorithms
Trang 3Today’s Agenda
• Polygon Clipping
Trang 4Polygon Clipping
• Difficult task
• Polygon clipping may result in
• Trivial Accept
• Trivial Reject
Trang 5Polygon Clipping
Trang 7Original Polygon
Trang 8No Polygon
Trang 9New Polygon
Trang 10Sutherland-Hodgman Clipping
• Consider each edge of the view window individually
• Clip the polygon against the view window edge’s equation
Trang 11Polygon Clipping
Trang 15• Clipping
Trang 16• Fundamentals of Computer Graphics Third Edition by Peter Shirley and Steve
Marschner
• Interactive Computer Graphics, A
Top-down Approach with OpenGL (Sixth
Edition) by Edward Angel