Working principle of the raster scan
Describe the working principle of the raster scan.
Expert
Beginning from the top left corner of the screen, the electron gun scans (or sweeps) horizontally from left to right, one scan line which is one row at a time, jumping (devoid of tracing the line) to the left end of the next lower row till the bottom right corner is reached. Then it jumps (again devoid of tracing) to the top left corner and begins again, completing one complete refresh cycle.
The chief demerit of the raster scan is the jagged nature of lines, occurring from the fact that the pixels are aligned all along regular rows and columns and points on line will not, in general drop on the exact centre of pixels.
Write short notes on active and passive transformations?
Describe the term shear and reflection?
Distinguish between the terms painting and drawing?
Illustrate the different methods of stimulating motion?
Explain the several representation schemes that is used within the three dimensional objects?
Write down a brief note on the term Television which is the application of computer animation?
What do you understand by the term projector?
Briefly describe the basic principle of vanishing point?
Describe the several phases which are involved within waterfall life cycle.
Illustrate the two main uses of animation?
18,76,764
1953271 Asked
3,689
Active Tutors
1457915
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!