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ellipse generating algorithm algorithm is similar to circle algorithm we divide the ellipse on the positive quadrant into two regions region 1 where
midpoint circle generation algorithmthis makes use of a circle function based on this circle function a decision parameter is created which is used
algorithms for basic line segment plottingthere are two important algorithms for basic line segment plotting-dda algorithm and bresenham
scan conversion for display of a continuously defined object a method to map a continuous abstract object or shape into a discrete plane of computer
functioning of hardcopy devices and output primitives1 functioning of hardcopy devices-laser printers and dot matrix printers plotters 2
functioning of input devicesfunctioning of input devices-keyboard mouse trackball and space ball joystick data glove digitizer scanner touch panel
ellipse generation algorithm you know that a circle is symmetric in all the octants while ellipse is symmetric with respect to four quadrants
2d line segment generation a digitally plotted line is basically an approximation of infinite number of points on an abstract line segment by only
input and hardcopy devices this section gives a brief introduction to the functioning of some well known input and hardcopy devices input devices
2d shape primitivesyou have already learnt to plot a point or a pixel on any display device in this unit we shall introduce you to various devices
question compute the following a size of 420 times 300 image at 240 pixels per inch b resolution per square inch of 3 times 2 inch
question suppose we have a video monitor with a display area measuring 128 inches across and 96 inches high if the resolution is 1024 by 768 and
question explain how computer graphics would play a useful role in education and traininganswer computer graphics has occupied an important role in
question list five different areas of applications of computer graphicsanswer five major areas of applications of computer graphics are i study of
raster and random scan displaysin raster scan displays whole screen is refreshed a number of times in a second to keep the picture visible on the
design and functioning of a refresh cathode ray tubeprimary components of refresh cathode ray tube arei electron gun used in producing electron
flat panel displays - hardware primitives1 flat panel displays have now become more common these include liquid crystal displays lcd and thin
delta-delta arrangement and in-line arrangementthere are two types of shadow masks available delta-delta arrangement and in-line arrangement the
beam penetration method and shadow mask methodtwo methods exist for displaying colors in a crt monitor - beam penetration method and shadow mask
horizontal retrace - hardware primitiveshorizontal retrace refers to the time an electron beam takes to traverse a scan linevertical retrace means
lcd - liquid crystal display a liquid crystal display consists of two glass plates each containing a light polarizer one glass plate contains
crt - cathode ray tube electron gun is used to send an electron beam aimed at a particular point on the screen deflection system is used to make the
raster and random scan display technologiesfor display or printing graphics objects various technologies have been invented research and development
vertical retrace - display devicesin a refresh crt monitor the time it takes for an electron beam to return to the top left most point on the monitor
horizontal retrace - display devicesin a refresh crt monitor the time it takes for an electron beam to return to the left most point on the next