TAILIEUCHUNG - Lecture Computer graphics: Lecture 14 - Fasih ur Rehman

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; | Computer Graphics Lecture 14 Fasih ur Rehman Last Class Translation Shear Reflection Today’s Agenda Combining Transformations Affine versus Rigid body Transformations Homogenous Transformations Combining Transforms General transformation of a point: P' = N • P + A Scaling or rotation, Translate, we set A, and N is the multiplicative identity. Example Rigid Body Transforms The transforms in which angles and lengths are preserved are called rigid body transforms. The body or object is not distorted after the application of transformation. Rotation and Translation are examples Affine Transformations Parallelism of lines are preserved but angles between the lines are not preserved in affine transformations An arbitrary sequence of rotation, translation and scaling can cause affine transformation Shear is another example A Dangerous Representation Point and vectors are two distinct geometric types but a confusion may arise Homogeneous Coordinates How a 2D vector is represented by 3 x 3 .

• Đồ họa - Thiết kế - Flash
• Computer graphics
• Lecture Computer graphics
• Drawing elementary figures
• Đồ họa máy tính
• Graphical user interfaces
• Interactive computer graphics
• Interactive computer
• A graphics system
• Graphics system
• Graphics programming
• Bài giảng Đồ họa máy tính
• Graphics systems
• Monochrome adaptor
• Color graphics adaptor
• Video display devices
• Raster scan systems
• Interactive graphics
• Passive graphics
• OpenGL programming
• Đồ họa 2D
• Geometric modeling
• Computer graphics applications
• Mathematics of parametric equations
• Display devices
• Colored displays
• Graphics applications
• Layout design
• Architectural simulations
• Text mode colors
• Graphics mode colors
• Video memory directly
• Computer forensics
• Computer investigations
• Computer forensics and investigations
• Recovering graphics files
• Graphics file
• Vector graphics
• Programmable shaders
• Procedural methods
• Advanced rendering