Package georegression.struct.line

Class LineGeneral2D_F32

java.lang.Object

georegression.struct.line.LineGeneral2D_F32

All Implemented Interfaces:

Serializable

@Generated("georegression.struct.line.LineGeneral2D_F64")
public class LineGeneral2D_F32
extends Object
implements Serializable

Represents the line using three parameters such that any point on the line obeys the following formula, A*x + B*y + C = 0. Any 2D line can be represented using this notation. This formulation is also known as standard and implicit. The slope is -A/B.

If it is said the line is normalized that refers to it being scaled such that A*A + B*B = 1. To normalize a line call normalize(). After normalization several operations become less expensive.

See Also:

• UtilLine2D_F32
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
float	A	Coefficients which define the line.
float	B	Coefficients which define the line.
float	C	Coefficients which define the line.

Constructor Summary

Constructors

Constructor	Description
LineGeneral2D_F32()
LineGeneral2D_F32(float a, float b, float c)	A*x + B*y + C = 0
LineGeneral2D_F32(LineGeneral2D_F32 line)

Method Summary

Modifier and Type	Method	Description
LineGeneral2D_F32	copy()
boolean	equals(Object obj)
float	evaluate(float x, float y)	Returns the result of A*x + B*y + C.
float	evaluate(float x, float y, float z)
int	hashCode()
void	normalize()	Ensures that A*A + B*B == 1
LineGeneral2D_F32	setTo(float a, float b, float c)	A*x + B*y + C = 0
LineGeneral2D_F32	setTo(LineGeneral2D_F32 original)
String	toString()
void	zero()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

A

public float A

Coefficients which define the line.

B

public float B

Coefficients which define the line.

C

public float C

Coefficients which define the line.

Constructor Details

LineGeneral2D_F32

public LineGeneral2D_F32(float a,
 float b,
 float c)

A*x + B*y + C = 0

Parameters:

a - parameter A

b - parameter B

c - parameter C

LineGeneral2D_F32

public LineGeneral2D_F32(LineGeneral2D_F32 line)

LineGeneral2D_F32

public LineGeneral2D_F32()

Method Details

setTo

public LineGeneral2D_F32 setTo(LineGeneral2D_F32 original)

setTo

public LineGeneral2D_F32 setTo(float a,
 float b,
 float c)

A*x + B*y + C = 0

Parameters:

a - parameter A

b - parameter B

c - parameter C

zero

public void zero()

normalize

public void normalize()

Ensures that A*A + B*B == 1

evaluate

public float evaluate(float x,
 float y)

Returns the result of A*x + B*y + C. If the line is normalized then this is also the signed distance away from the line.

Parameters:

x - x-coordinate of a point

y - y-coordinate of a point

Returns:

result of line equation

evaluate

public float evaluate(float x,
 float y,
 float z)

copy

public LineGeneral2D_F32 copy()

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object