Computer Graphics

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Technical Publications, Jan 1, 2008 - Computer graphics - 344 pages
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Application areas, Input and output devices, Video display devices: Refresh CRT; Raster scan display; Color CRT monitor; Flat panel display; Co-ordinate representation.Basic Raster Gaphics Algorithm for drawing 2-D primitivesOutput characteristics: Aspect ratio; Alising and Anti-alising, Line drawing algorithms: DDA algorithm; Bresenham's algorithm. Circle generation algorithm: Midpoint circle algorithm. Ellipse generation algorithm: Mid-point ellipse algorithm. Area filling: Scan line polygon filling algorithm; Inside-outside test; Boundary fill algorithm; Flood-fill algorithm.2-D Geometric TransformationWindow and Viewport: Window and Viewport relationship; World co-ordinates; Normalised idevice co-ordinates and Homogenous co-ordinates. Basic transformations: Translation; Rotation and Scaling. Other transformation: Reflection and Shear. Composite ; Transformation.2-D Viewing and ClippingWindow to viewport co-ordinate transformation. Clipping: Point clipping; Line: Cohen; Sutherland algorithm, Liang barsky clipping, Mid-point subdivision; Polygon: Sutherland hodgman algorithm.3-D Concepts3-D display methods: Parallel and Perspective projections; Depth cueing. 3-D transformation: Basic transformations: translation, rotation and scaling; Other transformation: reflection and shear; Composite transformation. 3-D Viewing and ClippingHidden Surface Elimination MethodsBackface detection, Depth or Z-buffer method, Scan line method, Area subdivision CurvesSpline representation, Bezier curves, B-splineLight ShadingIllumination model. Shading: Constant Intensity shading; Gouraud shading; Phong shading Halftoning ray tracing.
 

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Contents

Introduction to Computer Graphics
1
Raster Graphics Algorithms for Drawing 2D Primitives
45
Area Filling
88
2D Geometric Transformation
110
Chapters 2D Viewing and Clipping
147
Three Dimensional Viewing Projection and Clipping
221
Hidden Surface Elimination Methods
248
Curves
265
Light Shading
288
Index
323
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