CVD::Brezenham8 Class Reference
[Computer graphics]

#include <brezenham.h>

List of all members.

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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.

Definition at line 61 of file brezenham.h.

Public Member Functions
	Brezenham8 (TooN::Vector< 2 > dir)
ImageRef	step ()
ImageRef	sideways ()

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Constructor & Destructor Documentation

CVD::Brezenham8::Brezenham8

(

TooN::Vector< 2 >

dir

)

Construct a line-drawing object.

Parameters:

dir

The (x,y) direction of the line

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Member Function Documentation

ImageRef CVD::Brezenham8::step

(

)

Returns the next image co-ordinate along 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.

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

• cvd/brezenham.h

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