BIAS::BresenhamCircleEighth Class Reference

Just like BresenhamCircle but only computes 1/8 of the circle. More...

#include <Base/ImageUtils/BresenhamCircleEighth.hh>

Public Member Functions
	BresenhamCircleEighth ()
	Default constructor. More...
	BresenhamCircleEighth (int center[2], int radius)
	Constructor. More...
bool	GetNext (int next[2])
	Returns the coordinate of the next point on the 1/8 circle. More...
void	Init (int center[2], int radius)
	Initialises this BresenhamCircleEighth with new center and radius. More...
	~BresenhamCircleEighth ()
	Destructor. More...

Protected Attributes
int	center_ [2]
int	current_ [2]
int	d_
int	deltaE_
int	deltaSE_
bool	initialized_
int	radius_

Detailed Description

Just like BresenhamCircle but only computes 1/8 of the circle.

Author

Felix Woelk, clean-up + refactoring by Robert Wulff 02/2010

Examples:

ExampleBresenham.cpp.

Definition at line 38 of file BresenhamCircleEighth.hh.

Constructor & Destructor Documentation

BIAS::BresenhamCircleEighth::BresenhamCircleEighth ( )

inline

Default constructor.

You have to call Init() by yourself before calling GetNext().

Definition at line 46 of file BresenhamCircleEighth.hh.

BIAS::BresenhamCircleEighth::BresenhamCircleEighth ( int  center[2], int  radius  )

inline

Constructor.

Parameters

center	the center for this BresenhamCircleEighth
radius	the radius for this BresenhamCircleEighth

Definition at line 58 of file BresenhamCircleEighth.hh.

References Init().

BIAS::BresenhamCircleEighth::~BresenhamCircleEighth ( )

inline

Destructor.

Definition at line 66 of file BresenhamCircleEighth.hh.

Member Function Documentation

bool BIAS::BresenhamCircleEighth::GetNext ( int  next[2] )

inline

Returns the coordinate of the next point on the 1/8 circle.

Can be called in a while loop:

int nextCoords[2]; while (bresCircEighth.GetNext(nextCoords)){ // draw nextCoords in image }

Parameters

next	the returned coordinate of the next point on the 1/8 circle

Returns

true if there are still points left on the 1/8 circle or false if the 1/8 circle is finished

Examples:

ExampleBresenham.cpp.

Definition at line 118 of file BresenhamCircleEighth.hh.

References center_, current_, d_, deltaE_, deltaSE_, and initialized_.

Referenced by BIAS::ImageDraw< StorageType >::CircleCenterFilled().

void BIAS::BresenhamCircleEighth::Init ( int  center[2], int  radius  )

inline

Initialises this BresenhamCircleEighth with new center and radius.

Parameters

center	the new center for this BresenhamCircleEighth
radius	the new radius for this BresenhamCircleEighth

Definition at line 79 of file BresenhamCircleEighth.hh.

References center_, current_, d_, deltaE_, deltaSE_, initialized_, and radius_.

Referenced by BresenhamCircleEighth(), and BIAS::ImageDraw< StorageType >::CircleCenterFilled().

Member Data Documentation

int BIAS::BresenhamCircleEighth::center_[2]

protected

Definition at line 153 of file BresenhamCircleEighth.hh.

Referenced by GetNext(), and Init().

int BIAS::BresenhamCircleEighth::current_[2]

protected

Definition at line 155 of file BresenhamCircleEighth.hh.

Referenced by GetNext(), and Init().

int BIAS::BresenhamCircleEighth::d_

protected

Definition at line 156 of file BresenhamCircleEighth.hh.

Referenced by GetNext(), and Init().

int BIAS::BresenhamCircleEighth::deltaE_

protected

Definition at line 157 of file BresenhamCircleEighth.hh.

Referenced by GetNext(), and Init().

int BIAS::BresenhamCircleEighth::deltaSE_

protected

Definition at line 158 of file BresenhamCircleEighth.hh.

Referenced by GetNext(), and Init().

bool BIAS::BresenhamCircleEighth::initialized_

protected

Definition at line 161 of file BresenhamCircleEighth.hh.

Referenced by GetNext(), and Init().

int BIAS::BresenhamCircleEighth::radius_

protected

Definition at line 154 of file BresenhamCircleEighth.hh.

Referenced by Init().

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

• Base/ImageUtils/BresenhamCircleEighth.hh