Package com.jhlabs.image
Class RotateFilter
java.lang.Object
com.jhlabs.image.AbstractBufferedImageOp
com.jhlabs.image.TransformFilter
com.jhlabs.image.RotateFilter
- All Implemented Interfaces:
BufferedImageOp
,Cloneable
A filter which rotates an image. These days this is easier done with Java2D, but this filter remains.
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Field Summary
Fields inherited from class com.jhlabs.image.TransformFilter
BILINEAR, CLAMP, edgeAction, interpolation, NEAREST_NEIGHBOUR, originalSpace, RGB_CLAMP, transformedSpace, WRAP, ZERO
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Constructor Summary
ConstructorsConstructorDescriptionConstruct a RotateFilter.RotateFilter
(float angle) Construct a RotateFilter.RotateFilter
(float angle, boolean resize) Construct a RotateFilter. -
Method Summary
Modifier and TypeMethodDescriptionfloat
getAngle()
Returns the angle of rotation.void
setAngle
(float angle) Specifies the angle of rotation.toString()
protected void
transformInverse
(int x, int y, float[] out) Inverse transform a point.protected void
transformSpace
(Rectangle rect) Forward transform a rectangle.Methods inherited from class com.jhlabs.image.TransformFilter
filter, filterPixelsNN, getEdgeAction, getInterpolation, setEdgeAction, setInterpolation
Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp
clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB
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Constructor Details
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RotateFilter
public RotateFilter()Construct a RotateFilter. -
RotateFilter
public RotateFilter(float angle) Construct a RotateFilter.- Parameters:
angle
- the angle to rotate
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RotateFilter
public RotateFilter(float angle, boolean resize) Construct a RotateFilter.- Parameters:
angle
- the angle to rotateresize
- true if the output image should be resized
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Method Details
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setAngle
public void setAngle(float angle) Specifies the angle of rotation.- Parameters:
angle
- the angle of rotation.- See Also:
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getAngle
public float getAngle()Returns the angle of rotation.- Returns:
- the angle of rotation.
- See Also:
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transformSpace
Description copied from class:TransformFilter
Forward transform a rectangle. Used to determine the size of the output image.- Overrides:
transformSpace
in classTransformFilter
- Parameters:
rect
- the rectangle to transform
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transformInverse
protected void transformInverse(int x, int y, float[] out) Description copied from class:TransformFilter
Inverse transform a point. This method needs to be overriden by all subclasses.- Specified by:
transformInverse
in classTransformFilter
- Parameters:
x
- the X position of the pixel in the output imagey
- the Y position of the pixel in the output imageout
- the position of the pixel in the input image
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toString
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