CVD 0.8
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Class to implement the Bresenham line-drawing algorithm. More...
#include <brezenham.h>
Public Member Functions | |
Brezenham8 (TooN::Vector< 2 > dir) | |
ImageRef | step () |
ImageRef | sideways () |
Class to implement the Bresenham line-drawing algorithm.
This object does not draw directly into an image, it simply outputs the set of image co-ordinates that should be visited to draw a line in a certain direction. Pixels are generated in a 8-connected sense (i.e. diagonal steps are possible). See also Brezenham.
Definition at line 61 of file brezenham.h.
CVD::Brezenham8::Brezenham8 | ( | TooN::Vector< 2 > | dir | ) |
Construct a line-drawing object.
dir | The (x,y) direction of the line |
ImageRef CVD::Brezenham8::sideways | ( | ) | [inline] |
Which compass position most orthogonal to the line's direction? At each pixel given by step() you are guaranteed to be able to walk in the direction given by sideways and not walk on the line.
Definition at line 74 of file brezenham.h.