Digital differential analyzer (graphics algorithm): Difference between revisions

Revision as of 23:46, 7 February 2008

Revision as of 00:50, 8 February 2008

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{{otheruses4|a graphics algorithm|other uses of DDA|DDA|the digital implementation of a Differential Analyzer|Digital Differential Analyzer}}

In [[Computer graphics]], '''Digital Differential Analyzer (DDA)''' is an algorithm used to determine which points need to be plotted in order to draw a straight line between two given points. It employees the equation for line representation (example: y=mx+c), then scan through an axis. Each scan it would determine the value on the other axis using the equation, this way the proper pixel can be located.