coordinfo.java

jpeg2000算法实现

/*
 * CVS identifier:
 *
 * $Id: CoordInfo.java,v 1.9 2001/02/14 10:30:42 grosbois Exp $
 *
 * Class:                   CoordInfo
 *
 * Description: Used to store the coordinates of code-blocks/packets
 *
 *
 *
 * COPYRIGHT:
 * 
 * This software module was originally developed by Rapha雔 Grosbois and
 * Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
 * Askel鰂 (Ericsson Radio Systems AB); and Bertrand Berthelot, David
 * Bouchard, F閘ix Henry, Gerard Mozelle and Patrice Onno (Canon Research
 * Centre France S.A) in the course of development of the JPEG2000
 * standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
 * software module is an implementation of a part of the JPEG 2000
 * Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
 * Systems AB and Canon Research Centre France S.A (collectively JJ2000
 * Partners) agree not to assert against ISO/IEC and users of the JPEG
 * 2000 Standard (Users) any of their rights under the copyright, not
 * including other intellectual property rights, for this software module
 * with respect to the usage by ISO/IEC and Users of this software module
 * or modifications thereof for use in hardware or software products
 * claiming conformance to the JPEG 2000 Standard. Those intending to use
 * this software module in hardware or software products are advised that
 * their use may infringe existing patents. The original developers of
 * this software module, JJ2000 Partners and ISO/IEC assume no liability
 * for use of this software module or modifications thereof. No license
 * or right to this software module is granted for non JPEG 2000 Standard
 * conforming products. JJ2000 Partners have full right to use this
 * software module for his/her own purpose, assign or donate this
 * software module to any third party and to inhibit third parties from
 * using this software module for non JPEG 2000 Standard conforming
 * products. This copyright notice must be included in all copies or
 * derivative works of this software module.
 * 
 * Copyright (c) 1999/2000 JJ2000 Partners.
 * */
package jj2000.j2k.codestream;

import jj2000.j2k.image.Coord;

/**
 * This class is used to store the coordinates of objects such as code-blocks
 * or precincts. As this is an abstract class, it cannot be used directly but
 * derived classes have been created for code-blocks and packets
 * (CBlkCoordInfo and PrecCoordInfo).
 *
 * @see PrecCoordInfo
 * @see CBlkCoordInfo
 * */
public abstract class CoordInfo {

    /** Horizontal upper left coordinate in the subband */
    public int ulx;

    /** Vertical upper left coordinate in the subband */ 
    public int uly;

    /** Object's width */
    public int w;

    /** Object's height */
    public int h;
    
    /** 
     * Constructor. Creates a CoordInfo object.
     *
     * @param ulx The horizontal upper left coordinate in the subband
     *
     * @param uly The vertical upper left coordinate in the subband
     *
     * @param w The width
     *
     * @param h The height
     *
     * @param idx The object's index
     * */
    public CoordInfo(int ulx, int uly, int w, int h) {
        this.ulx = ulx;
        this.uly = uly;
        this.w = w;
        this.h = h;
    }
    
    /** Empty contructor */
    public CoordInfo() { }

    /** 
     * Returns object's information in a String 
     * 
     * @return String with object's information
     * */
    public String toString() {
        return "ulx="+ulx+", uly="+uly+", w="+w+", h="+h;
    }
}