Application: gvSIG desktop » gvSIG raster

import java.awt.image.ComponentColorModel;

import java.awt.image.IndexColorModel;

import java.nio.ByteBuffer;

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

        ColorModel colorModel = jimiRasterImage.getColorModel();

        if (colorModel instanceof ComponentColorModel){

            if( jimiRasterImage instanceof IntRasterImage ) {

                dataType = BufferManager.TYPE_INT;

            } else if( jimiRasterImage instanceof ByteRasterImage ) {

                dataType = BufferManager.TYPE_BYTE;

            } else {

                dataType = BufferManager.TYPE_INT;

            bands=3;

            if ( jimiRasterImage.getColorModel().hasAlpha() ){

                bands=4;

            }

            buffer = new byte[bands][columns*rows];

            for( int band=0; band<bands; band++) {

                switch (band) {

                case 0:

                    jimiRasterImage.getChannelRectangle(JimiRasterImage.CHANNEL_RED, 0, 0, columns, rows, buffer[band], 0, columns);

                    break;

                case 1:

                    jimiRasterImage.getChannelRectangle(JimiRasterImage.CHANNEL_GREEN, 0, 0, columns, rows, buffer[band], 0, columns);

                    break;

                case 2:

                    jimiRasterImage.getChannelRectangle(JimiRasterImage.CHANNEL_BLUE, 0, 0, columns, rows, buffer[band], 0, columns);

                    break;

                case 3:

                    jimiRasterImage.getChannelRectangle(JimiRasterImage.CHANNEL_ALPHA, 0, 0, columns, rows, buffer[band], 0, columns);

                    break;

                default:

                    break;

                }

            }

        }else if (colorModel instanceof IndexColorModel){

            bands=1;

            IndexColorModel indexColorModel = (IndexColorModel)colorModel;

            BufferManager bufferManager = BufferLocator.getBufferManager();

            int dataTypeSize = bufferManager.getDataTypeSize(dataType);

            buffer = new byte[bands][columns*rows* dataTypeSize];

            if( jimiRasterImage instanceof ByteRasterImage ) {

                dataType = BufferManager.TYPE_BYTE;

                ByteRasterImage byteRasterImage = ( ByteRasterImage )jimiRasterImage;

                byteRasterImage.getRectangle(0, 0, columns, rows, buffer[0], 0, columns);

            } else {

                dataType = BufferManager.TYPE_INT;

                IntRasterImage intRasterImage = ( IntRasterImage )jimiRasterImage;

                int[] intAuxArray=new int[columns*rows];

                intRasterImage.getRectangle(0, 0, columns, rows, intAuxArray, 0, columns);

                ByteBuffer byteBuffer=ByteBuffer.wrap(buffer[0]);

                for(int i=0;i<=intAuxArray.length;i=i){

                    byteBuffer.putInt(intAuxArray[i]);

                }

            }