cn.apiclub.captcha.filter.image

类 SplineColormap

java.lang.Object

cn.apiclub.captcha.filter.image.ArrayColormap

cn.apiclub.captcha.filter.image.SplineColormap

所有已实现的接口:

Colormap, Cloneable

public class SplineColormap
extends ArrayColormap

A Colormap implemented using Catmull-Rom colour splines. The map has a variable number of knots with a minimum of four. The first and last knots give the tangent at the end of the spline, and colours are interpolated from the second to the second-last knots.

字段概要

从类继承的字段 cn.apiclub.captcha.filter.image.ArrayColormap

map

构造器概要

构造器

构造器和说明
SplineColormap() Construct a SplineColormap.
SplineColormap(int[] xKnots, int[] yKnots) Construct a SplineColormap.

方法概要

方法

限定符和类型	方法和说明
void	addKnot(int x, int color) Add a new knot.
int	getKnot(int n) Get a knot color.
void	removeKnot(int n) Remove a knot.
void	setKnot(int n, int color) Set a knot color.
void	setKnotPosition(int n, int x) Set a knot position.

从类继承的方法 cn.apiclub.captcha.filter.image.ArrayColormap

clone, getColor, getMap, setColor, setColorInterpolated, setColorRange, setColorRange, setMap

从类继承的方法 java.lang.Object

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

构造器详细资料

SplineColormap

public SplineColormap()

Construct a SplineColormap.

SplineColormap

public SplineColormap(int[] xKnots,
              int[] yKnots)

Construct a SplineColormap.

参数:

xKnots - the knot positions

yKnots - the knot colors

方法详细资料

setKnot

public void setKnot(int n,
           int color)

Set a knot color.

参数:

n - the knot index

color - the color

另请参阅:

getKnot(int)

getKnot

public int getKnot(int n)

Get a knot color.

参数:

n - the knot index

返回:

the knot color

另请参阅:

setKnot(int, int)

addKnot

public void addKnot(int x,
           int color)

Add a new knot.

参数:

x - the knot position

color - the color

另请参阅:

removeKnot(int)

removeKnot

public void removeKnot(int n)

Remove a knot.

参数:

n - the knot index

另请参阅:

addKnot(int, int)

setKnotPosition

public void setKnotPosition(int n,
                   int x)

Set a knot position.

参数:

n - the knot index

x - the knot position