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two-dimensional geometric transformations when a real life object is modelled using shape primitives there are several possible applications
character generationyou know that graphics displays often contain components which are text based for example graph labels annotations
boundary-fill algorithm or flood-fill algorithm as you saw the implementation of scan line polygon fill requires that boundaries should be straight
area filling algorithmsbefore we go ahead with area filling algorithms a word about pixel addressing and object geometry you know that line segments
filled-area primitives filled-area primitives are one of the most important types of primitives used in computer graphics basically
output primitives and geometric transformationsyou learnt how some basic geometric objects such as line segments circles ellipses and other curves
write a c code for generating concentric circles put the circle function circlemidpointin a for loop as followsfor int radius minradius
draw the letters s p r or u of english alphabet using multiple beacutezier curves a complete code for plotting bezier curves is given previously
draw a long line segment using i dda line drawing algorithm ii bresenham line drawing algorithm iii opengl function using gllines observe if dda
other curves - parabola and hyperbolaconic sections such as parabola and hyperbola are used in many instances such as in motion planning along a
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