cn.apiclub.captcha.filter.image

类 RotateFilter

java.lang.Object

cn.apiclub.captcha.filter.image.AbstractBufferedImageOp

cn.apiclub.captcha.filter.image.TransformFilter

cn.apiclub.captcha.filter.image.RotateFilter

所有已实现的接口:

BufferedImageOp, Cloneable

public class RotateFilter
extends TransformFilter

A filter which rotates an image. These days this is easier done with Java2D, but this filter remains.

字段概要

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

BILINEAR, CLAMP, edgeAction, interpolation, NEAREST_NEIGHBOUR, originalSpace, RGB_CLAMP, transformedSpace, WRAP, ZERO

构造器概要

构造器

构造器和说明
RotateFilter() Construct a RotateFilter.
RotateFilter(float angle) Construct a RotateFilter.
RotateFilter(float angle, boolean resize) Construct a RotateFilter.

方法概要

方法

限定符和类型	方法和说明
float	getAngle() Returns the angle of rotation.
void	setAngle(float angle) Specifies the angle of rotation.
String	toString()
protected void	transformInverse(int x, int y, float[] out) Inverse transform a point.
protected void	transformSpace(Rectangle rect) Forward transform a rectangle.

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

filter, filterPixelsNN, getEdgeAction, getInterpolation, setEdgeAction, setInterpolation

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

clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB

从类继承的方法 java.lang.Object

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

构造器详细资料

RotateFilter

public RotateFilter()

Construct a RotateFilter.

RotateFilter

public RotateFilter(float angle)

Construct a RotateFilter.

参数:

angle - the angle to rotate

RotateFilter

public RotateFilter(float angle,
            boolean resize)

Construct a RotateFilter.

参数:

angle - the angle to rotate

resize - true if the output image should be resized

方法详细资料

setAngle

public void setAngle(float angle)

Specifies the angle of rotation.

参数:

angle - the angle of rotation.

另请参阅:

getAngle()

getAngle

public float getAngle()

Returns the angle of rotation.

返回:

the angle of rotation.

另请参阅:

setAngle(float)

transformSpace

protected void transformSpace(Rectangle rect)

从类复制的说明: TransformFilter

Forward transform a rectangle. Used to determine the size of the output image.

覆盖:

transformSpace 在类中 TransformFilter

参数:

rect - the rectangle to transform

transformInverse

protected void transformInverse(int x,
                    int y,
                    float[] out)

从类复制的说明: TransformFilter

Inverse transform a point. This method needs to be overriden by all subclasses.

指定者:

transformInverse 在类中 TransformFilter

参数:

x - the X position of the pixel in the output image

y - the Y position of the pixel in the output image

out - the position of the pixel in the input image

toString

public String toString()

覆盖:

toString 在类中 Object