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Define clipping and covering (exterior clipping)?
Clipping is the process of cutting a graphics display to neatly fit a predefined graphics region or the view port.
This is just opposite to clipping. This removes the lines coming inside the windows and displays the remaining. Covering is mainly used to make labels on the complex pictures.
Various cases of Cohen Sutherland Line Clippings Currently, we study how this clipping algorithm works. For the sake of simplicity we will tackle all the cases with the assist
Question : (a) What do you understand by the term ‘contone'? (b) What are spot colours? (c) You have been asked to prepare an artwork (a magazine) to send to a printer.
Icon Based or Event Driven Tools In such authoring systems, multimedia components and interaction cues or events are organized like objects in a structural process or framework
Example 1: Draw line segment from point (2, 4) to (9, 9) by using Digital Differential Analyzer algorithm. Solution: We know usual equation of line is specified via y = mx
Suppose P be the point object along with the coordinate (x,y,z). We want to translate such object point to the new position as, P'(x',y',z') through the translation Vector as V=t x
Mathematical description of a Perspective Projection A perspective transformation is found by prescribing a center of projection and a viewing plane. Let here assume that P(x
Ray Tracing: Ray t racing is the technique to determine which objects in the scene are visible. In this to identify the visible surface for each pixel we continue to bounce the
Parallel Projection In parallel projection, objects in scene are projected onto the 2D view plane along rays parallel to a projection vector. Parallel projection is orthogra
Advantages of GIF Files GIF is the most extensively supported graphics format upon the Web. GIFs of diagrammatic images appear better than JPEGs. GIF maintains inte
Put the system of a geometric data table for a 3d rectangle. Solution : Vertex Table Edge Table Polygon Surface Table
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