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Event Driven Devices - Polling
Polling: The status of all devices is periodically checked in a repetitive manner through a polling loop. While an event happens, the loop is exited and the consequent event is handled by executing some special event-handling routine or task. Again the polling carries on. The disadvantage is, the processor has to stay in an idle state till some event happens. Data entered can be missing if an event happens at a time while the major program is not in its polling loop.
when dda line drawing algorithm is more efficient than bresenhem line drawing algorithm?
Figure uses three dashed arcs and one small circle. Dashed line or arc is a style attribute that can be attached with a line or a curve. In OpenGL you can use the line stipple func
Polygon or Area Clipping Algorithm - Sutherland-Hodgman Algorithm There are different algorithms as Liang-Barsky, Line clipping, Weiler-Atherton Polygon Clipping,
What is bitmap and what is pixmap? The frame buffer used in the black and white system is called as bitmap which take one bit per pixel. For systems with many bits per pixel,
File format We want an image of a Fly. The wings are incompletely transparent and to present that in our presentation what be problematic if suitable file format is not there.
refreh buffer
Animation and Games - CAD and CAM In our childhood, we all have seen that the flip books of cricketers that came free with some soft drink and where some pictures of similar p
Homogeneous Coordinate Systems - 2-d and 3-d transformations Suppose P(x,y) be any point in 2-D Euclidean (Cartesian) system. In HC System, we add a third coordinate to a poin
Multimedia: it is the use of different media to present a specific subject. This representation itself is a multimedia presentation implies; it brings together text and graphics.
Advantages of the Boundary Representation (i) This format gives efficient picture generation and easy access to other geometric information. (ii) The changes produced by mos
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