Package adams.data.image

Class ImageAnchorHelper

java.lang.Object

adams.data.image.ImageAnchorHelper

public class ImageAnchorHelper
extends Object

Helper class for dealing with the image anchor.

Version:

$Revision$

Author:

fracpete (fracpete at waikato dot ac dot nz)

Constructor Summary

Constructors

Constructor	Description
ImageAnchorHelper()

Method Summary

Modifier and Type	Method	Description
static Point[]	calculateCorners(int imgWidth, int imgHeight, ImageAnchor anchor, double x, double y, double width, double height, boolean useAnchorAtPos)	Calculates the actual top-left (index 0) and bottom-right coordinates (index 1).
static Point[]	calculateCorners(BufferedImage img, ImageAnchor anchor, double x, double y, double width, double height, boolean useAnchorAtPos)	Calculates the actual top-left (index 0) and bottom-right coordinates (index 1).
static int	calculateX(int width, double x)	Calculates the actual X value.
static int	calculateY(int height, double y)	Calculates the actual Y value.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageAnchorHelper

public ImageAnchorHelper()

Method Detail

calculateX

public static int calculateX(int width,
                             double x)

Calculates the actual X value.

Parameters:

x - the x (0-1: percent of original image width, >1 absolute pixels)

width - the width to use as basis

Returns:

the actual X

calculateY

public static int calculateY(int height,
                             double y)

Calculates the actual Y value.

Parameters:

y - the y (0-1: percent of original image width, >1 absolute pixels)

height - the height to use as basis

Returns:

the actual Y

calculateCorners

public static Point[] calculateCorners(BufferedImage img,
                                       ImageAnchor anchor,
                                       double x,
                                       double y,
                                       double width,
                                       double height,
                                       boolean useAnchorAtPos)

Calculates the actual top-left (index 0) and bottom-right coordinates (index 1).

Parameters:

x - the x (0-1: percent of original image width, >1 absolute pixels)

y - the y (0-1: percent of original image width, >1 absolute pixels)

width - the width (0-1: percent of original image width, >1 absolute pixels)

height - the height (0-1: percent of original image width, >1 absolute pixels)

anchor - the anchor to use

img - the image to use as basis

useAnchorAtPos - whether to use the anchor at the position rather than the image

Returns:

the top-left and bottom-right coordinates

calculateCorners

public static Point[] calculateCorners(int imgWidth,
                                       int imgHeight,
                                       ImageAnchor anchor,
                                       double x,
                                       double y,
                                       double width,
                                       double height,
                                       boolean useAnchorAtPos)

Calculates the actual top-left (index 0) and bottom-right coordinates (index 1).

Parameters:

x - the x (0-1: percent of original image width, >1 absolute pixels)

y - the y (0-1: percent of original image width, >1 absolute pixels)

width - the width (0-1: percent of original image width, >1 absolute pixels)

height - the height (0-1: percent of original image width, >1 absolute pixels)

anchor - the anchor to use

imgWidth - the image width to use as basis

imgHeight - the image height to use as basis

useAnchorAtPos - whether to use the anchor at the position rather than the image

Returns:

the top-left and bottom-right coordinates