CVD::Brezenham8 Class Reference

Class to implement the Bresenham line-drawing algorithm. More...

#include <brezenham.h>

Public Member Functions
	Brezenham8 (TooN::Vector< 2 > dir)
	Construct a line-drawing object. More...
ImageRef	step ()
	Returns the next image co-ordinate along the line.
ImageRef	sideways ()
	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. More...

Detailed Description

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.

Constructor & Destructor Documentation

Brezenham8()

CVD::Brezenham8::Brezenham8

(

TooN::Vector< 2 >

dir

)

Construct a line-drawing object.

Parameters

dir	The (x,y) direction of the line

Member Function Documentation

sideways()

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.

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The documentation for this class was generated from the following files:

• cvd/brezenham.h
• cvd_src/brezenham.cc