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(a) Voltage or Electro-Magnetic Field Tablet and Pointer: This has a grid of wires, embedded in the tablet surface along with various voltages or magnetic fields consequent to various coordinates. Intermediate positions in a cell can be interpolated too.
(b) Acoustic or Sonic (Radio-Wave) Tablet and Pointer: The sound of a spark on the tip of the stylus is picked up via strip microphones beside two edges of the tablet. By the arrival time of the sound pulse in the microphones, the perpendicular distances of the stylus tip by the two axes are identified. The acoustic process suffers from its inherent noisiness and also its susceptibility to interference from the other noise.
A combination of time-delay and electric pulses detection via a sensor in the stylus that is termed as Electro-acoustic Table is also accessible.
Algorithms for Basic Line Segment Plotting There are two important algorithms for basic line segment plotting-DDA algorithm and Bresenham algorithm. Both the algorithms use th
Q. Describe briefly phong shading algorithm. OR Write short note on phong shading. Phong shading Phong shading or normal vector interpo
This renders a polygon surface by linearly interpolating intensity values across the surface. Intensity values for each polygon are matched with the values of adjacent polygon alon
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Specified p 0 (1, 1): p 1 (2, 3); p 2 (4, 3); p 3 (3, 1) as vertices of Bezier curve find out 3 points on Bezier curve? Solution : We consider Cubic Bezier curve as: P (
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
do you remember how you to work the computer graphics
List out the merits and demerits of Penetration methods? The merits and demerits of the Penetration methods are as follows It is a less expensive technique It has
multimedia
Digital audio comprises audio signals stored in a digital format. Particularly, the term encompasses the subsequent: 1) Audio conversion: 1. Analogue to digital conversi
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