Module io.github.shimeoki.jfx.rasterization

Package io.github.shimeoki.jfx.rasterization.triangle

Class Barycentrics

java.lang.Object

io.github.shimeoki.jfx.rasterization.triangle.Barycentrics

public final class Barycentrics
extends Object

A class that represents barycentric coordinates using floats.

The main usage is to act as a data object for the Filler.

The coordinates are mutable for the usage of the same object instead of creating a new one everytime. It can be seen in Barycentricser.

It is recommended to keep the coordinates normalized (based on the theory). Documentation: Wikipedia.

Since:

2.0.0

See Also:

• Filler
• Barycentricser

Constructor Summary

Constructors

Constructor	Description
Barycentrics(float lambda1, float lambda2, float lambda3)	Creates a new Barycentrics instance with initial values.

Method Summary

Modifier and Type	Method	Description
boolean	inside()	Gets the boolean value of the statement "are these barycentrics inside of a triangle?".
float	lambda1()	Gets the first barycentric coordinate.
float	lambda2()	Gets the second barycentric coordinate.
float	lambda3()	Gets the third barycentric coordinate.
boolean	normalized()	Gets the boolean value of the statement "are these barycentrics normalized?".
void	setLambda1(float v)	Sets the value of the first barycentric coordinate.
void	setLambda2(float v)	Sets the value of the second barycentric coordinate.
void	setLambda3(float v)	Sets the value of the third barycentric coordinate.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Barycentrics

public Barycentrics(float lambda1,
 float lambda2,
 float lambda3)

Creates a new Barycentrics instance with initial values.

Parameters:

lambda1 - initial value of the first barycentric coordinate

lambda2 - initial value of the second barycentric coordinate

lambda3 - initial value of the third barycentric coordinate

Since:

2.0.0

Method Details

lambda1

public float lambda1()

Gets the first barycentric coordinate.

Returns:

the first barycentric coordinate.

Since:

2.0.0

setLambda1

public void setLambda1(float v)

Sets the value of the first barycentric coordinate.

Parameters:

v - new value of the first barycentric coordinate

Since:

2.0.0

lambda2

public float lambda2()

Gets the second barycentric coordinate.

Returns:

the second barycentric coordinate.

Since:

2.0.0

setLambda2

public void setLambda2(float v)

Sets the value of the second barycentric coordinate.

Parameters:

v - new value of the second barycentric coordinate

Since:

2.0.0

lambda3

public float lambda3()

Gets the third barycentric coordinate.

Returns:

the third barycentric coordinate.

Since:

2.0.0

setLambda3

public void setLambda3(float v)

Sets the value of the third barycentric coordinate.

Parameters:

v - new value of the third barycentric coordinate

Since:

2.0.0

inside

public boolean inside()

Gets the boolean value of the statement "are these barycentrics inside of a triangle?".

Equals to the boolean value of the statement "are all the barycentric coordinates not negative?".

Uses Floats.moreThan(float, float) internally.

Returns:

true if these barycentric coordinates are inside of the triangle; false otherwise

Since:

2.0.0

See Also:

• Floats.moreThan(float, float)

normalized

public boolean normalized()

Gets the boolean value of the statement "are these barycentrics normalized?".

Equals to true is the sum of all coordinates is 1.

Uses Floats.equals(float, float) internally.

Returns:

true if the sum of these barycentric coordinates is equal to 1; false otherwise

Since:

2.0.0

See Also:

• Floats.equals(float, float)