Important points for bresenham line generation algorithm, Computer Graphics

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Important points for Bresenham Line Generation Algorithm

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Bresenhams algorithm is generalised to lines along with arbitrary slopes with identifying the symmetry among the different octants and quadrants of the coordinate system.
For line with positive slope (m) that is, m > 1, so we interchange the roles of x and y direction that is, we step along y directions in unit steps and determine successive x values nearest the line path.
For negative slopes the procedures are same except that now, one coordinates reduces as the other raises.

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