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Output Primitives and Geometric Transformations
You learnt how some basic geometric objects such as line segments, circles, ellipses and other curves are processed for plotting on a display unit. In most of the graphics packages you will find that polygons are also used as standard output primitives. Filled polygons with single solid color (or other alternatives for filling the interior) are provided as shape primitives.
Relation between 2-D Euclidean system and Homogeneous coordinate system Suppose that P(x,y) be any point in 2-D Euclidean system. In HCS, we add a third coordinate to the poin
Two-Dimensional Geometric Transformations When a real life object is modelled using shape primitives, there are several possible applications. You may be required to do furth
What is the feature of Inkjet printers? Features of inkjet printers: They can print 2 to 4 pages/minutes. Resolution is about 360d.p.i. Thus better print quality is achie
mcqs of illustration in nts test
QUESTION (a) Consider the observer, façade, chain of responsibility and the iterator patterns. i) Give detailed descriptions and draw their structures. ii) Explain the in
Film Recorders - graphics hardware It is a graphical output device for transferring digital images to photographic films. The easiest film recorders classically work through
Aspect ratio - Display Devices Ratio of vertical points to horizontal points necessary to produce equal length lines in both directions on the screen. For example, in a CRT mon
Write a C-code for an interactive program which allows a user to draw a polygon object in a window and then gives various choices of geometric transformations on the polygon. Once
What do you mean by scan conversion? A main task of the display processor is digitizing a picture definition given in an application program into a set of pixel-intensity valu
What is the use of Projection reference point? In Perspective projection, the object positions are transformed to the view plane with these converged projection line and the p
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