Application: gvSIG desktop

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2016 gvSIG Association

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.fmap.dal.raster.impl;

import org.gvsig.fmap.dal.raster.RasterKernel;

import org.gvsig.raster.lib.buffer.api.Buffer;

/**

 * Implements RasterKernel

 * @author dmartinezizquierdo

 *

 */

public class DefaultRasterKernel implements RasterKernel{

    Buffer buffer;

    int row;

    int column;

    /**

     * Creates the raster kernel with the raster buffer

     * @param buffer

     */

    public DefaultRasterKernel(Buffer buffer){

        this.buffer=buffer;

    }

    /**

     * Row and Column from the raster

     * @param row

     * @param column

     */

    public void set(int row,int column){

        this.row=row;

        this.column=column;

    }

    @Override

    public int getBandCount() {

        return buffer.getBandCount();

    }

    @Override

    public int getRow() {

        return row;

    }

    @Override

    public int getColumn() {

        return column;

    }

    @Override

    public Object[] getValue() {

        Object[] value=new Object[getBandCount()];

        for (int i=0; i<getBandCount(); i++){

            value[i]=buffer.getBand(i).get(row, column);

        }

        return value;

    }

    @Override

    public Object[][][] getValues() {

        int maxRows=buffer.getRows();

        int maxColumns=buffer.getColumns();

        Object[][][] value=new Object[3][3][getBandCount()];

        for (int i=-1; i<2;i++){

            for (int j=-1; j<2;j++){

                for (int b=0; b<getBandCount(); b++){

                    Object obj = null;

                    if ( row+i>=0 && row+i<=maxRows && column+j>=0 && column+j<=maxColumns){

                        obj = buffer.getBand(b).get(row+i, column+j);

                    }

                    value[1+i][1+j][b]=obj;

                }

            }

        }

        return value;

    }

}