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Input and Hardcopy Devices
This section gives a brief introduction to the functioning of some well known input and hardcopy devices. Input devices include keyboard, mouse, scanners, joysticks, digitizers data gloves, touch panels and a few more. Hardcopy devices that are discussed are mainly printers. You can start with reading the following.
You can look at an input device in two ways: physically what it is, and logically what it does. Physically, each of the devices like mouse, keyboard, joysticks or trackball are like a small gadget whose use can be manipulated by hands. It then measures these manipulations and sends corresponding numerical information back to the graphics program.
Assume here are three polygon surfaces P,Q, R along with vertices specified by as: P: P1(1,1,1), P2(4,5,2), P3(5,2,5) And as Q: Q1(2,2,0.5), Q2(3,3,1.75), Q3(6,1,0.5) R: R1(0.5,
Explain the advantage and disadvantage of Raster CRT Advantages Allows solids, not just wireframes Leverages low-cost CRT technology (i.e., TVs) Bright, i.e.
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What is meant by scan code? When a key is pressed on the keyboard, the keyboard controller places a code bear to the key pressed into a part of the memory known as the keyboard
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Compression methods utilized for digital video can be categorized in three major groups: General reason compression techniques can be utilized for any type of data. Intr
Gourand shading OR Intensity interpolation scheme Now there polygon is rendered through linearly interpolating intensity values across the surface. Intensity values for all po
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"Random Painter" uses an array to store a collection of randomly coloured shapes, either squares or circles as filled shapes or outlines. Using an array imposes severe limitati
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