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Basic Tests - Producing Polygon Surface
A few basic tests that must be performed before producing a polygon surface through any graphic package as:
1) All vertexes are listed as an endpoint for at least two edges,
2) All edges are part of at least one polygon,
3) All polygons are closed,
4) All polygons have at least one shared edge,
5) If the edge table comprises pointer to polygons, each edge referenced through a polygon pointer to polygon, all edges referenced through a polygon pointer has a reciprocal pointer back to polygon.
Cohen Sutherland line clipping algorithm The algorithm uses the following main steps Divide the entire plane into nine disjoint regions using the four window boundaries
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What are the side effects due to scan conversion? How can the effects be minimized? Aliasing Effects (Side effects of scan conversion) Scan conversion is essentially a syst
Objectives of 2-D Viewing and Clipping After going through this section, you should be capable to: 1. Describe the concept of clipping, 2. Observe how line clipping is p
why do video characters look better today
note on control points
Scaling, shear, reflection and Viewing coordinates 1) Scaling, shear and reflection operations have natural extensions to 3D. 2) Viewing coordinates are the coordinates
Define Random Scan/Raster Scan displays. Ans. Random scan is a process in which the display is made by the electronic beam, which is directed, only to the points or division of
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