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svn-gvsig-desktop / tags / v1_0_2_Build_912 / libraries / libCq CMS for java.old / src / org / cresques / filter / IRaster.java @ 11422

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/*
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 * Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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 *
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 * Copyright (C) 2004-5.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
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 *
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 * For more information, contact:
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 *
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 * cresques@gmail.com
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 */
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package org.cresques.filter;
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import java.awt.image.DataBuffer;
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/**
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 * Raster con acceso a los elementos individuales (pixeles o datos de celda).
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 * @author Luis W. Sevilla (sevilla_lui@gva.es)
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 */
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public interface IRaster {
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    public final static int TYPE_UNDEFINED = DataBuffer.TYPE_UNDEFINED;
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    public final static int TYPE_BYTE = DataBuffer.TYPE_BYTE;
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    public final static int TYPE_SHORT = DataBuffer.TYPE_SHORT;
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    public final static int TYPE_USHORT = DataBuffer.TYPE_USHORT;
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    public final static int TYPE_INT = DataBuffer.TYPE_INT;
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    public final static int TYPE_FLOAT = DataBuffer.TYPE_FLOAT;
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    public final static int TYPE_DOUBLE = DataBuffer.TYPE_DOUBLE;
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    public final static int TYPE_IMAGE = -1;
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    /**
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     * Ancho del raster
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     * @return Entero con el ancho del raster
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     */
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    public int getWidth();
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    /**
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     * Alto del raster
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     * @return Entero con el alto del raster
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     */
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    public int getHeight();
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    /**
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     * N?mero de bandas
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     * @return Entero con el n?mero de bandas
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     */
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    public int getBandNr();
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    /**
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     * Devuelve el tipo de datos del raster
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     * @see java.awt.image.DataBuffer
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     */
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    public int getDataType();
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    /**
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     * Obtiene sobre un array de bandas el valor del raster en la
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     * coordenada que se le pasa. Los elementos son de 16 bits.
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     * @param x        coordenada X
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     * @param y coordenada Y
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     * @param px Array de 4 elementos para las bandas de la imagen ARGB
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     */
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    public void getElemShort(int x, int y, int[] px);
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    /**
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     * Obtiene sobre un array de bandas el valor del raster en la
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     * coordenada que se le pasa. Los elementos son de 32 bits.
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     * @param x        coordenada X
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     * @param y coordenada Y
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     * @param px Array de 4 elementos para las bandas de la imagen ARGB
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     */
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    public void getElemInt(int x, int y, int[] px);
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    /**
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     * Obtiene el valor del raster en la coordenada que se le pasa.
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     * Devuelve un int.
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     * @param x        coordenada X
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     * @param y coordenada Y
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     * @param band banda
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     * @return Entero
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     */
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    public int getElemInt(int x, int y, int band);
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}