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simon123
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describe the process of drawing a line

Why does a simple line algorithm (increment x, calculate x, parse int) not work for line drawing?

what does DDA mean? give parametrix form of a line..
 DDA = Digital Differential Analyser
 (finite differences)

Explain how the DDA algorithm works

What is the problem with the DDA algorithm?
There is a lot of floating point arithmetic: 2 "rounds" and 2 adds per pixel
> Integer arithmetic is easier to implement in hardware

