Explain how Bresenham’s Algorithm takes advantage of the connectivity of pixels in drawing straight lines on raster output. Use suitable examples. Consider two raster system with the resolution 640 * 480 and 1280 * 1024. How many pixels could be accessed per second in each of these systems by a display controller that refreshes the screen at a rate of 60 frames per second? What is the access time per pixel in each system? Consider a raster system with the resolution 1024 * 768 pixels and the color palette calls for 65,536 colors. What is the minimum amount of video RAM that the computer must have to support the above-mentioned resolution and number of colors?

Question
  1. Explain how Bresenham’s Algorithm takes advantage of the connectivity of pixels in drawing straight lines on raster output. Use suitable examples.
    1. Consider two raster system with the resolution 640 * 480 and 1280 * 1024.
    2. How many pixels could be accessed per second in each of these systems by a display controller that refreshes the screen at a rate of 60 frames per second?
  2. What is the access time per pixel in each system?
  3. Consider a raster system with the resolution 1024 * 768 pixels and the color palette calls for 65,536 colors. What is the minimum amount of video RAM that the computer must have to support the above-mentioned resolution and number of colors?
  4. An object is in location (1,3), (1,6), (3,3) and (3,6). Do two repeated translation operations on the object with the scaling factors, (2,1) and (4,3). Write the new positions.
  5. An object is in location (0,0), (1,0), (0,1) and (1,1). Write the new positions after shearing the object about x-direction. Take shear parameter along x-direction shx=4.Then apply reflection about the line x=0(the Y axis).

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