| gvSIG desktop 1

	/*

	 *  (non-Javadoc)

	 * @see org.gvsig.raster.dataset.RasterDataset#readBlock(int, int)

	 */

	public Object readBlock(int pos, int blockHeight) throws InvalidSetViewException, FileNotOpenException, RasterDriverException {

		if(pos < 0)

			throw new InvalidSetViewException("Request out of grid");

		if((pos + blockHeight) > buffer.getHeight())

			blockHeight = Math.abs(buffer.getHeight() - pos);

		switch(buffer.getDataType()){

		case IBuffer.TYPE_BYTE:

			byte[][][] bufb = new byte[getBandCount()][][];

			for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) {

				for (int row = 0; row < blockHeight; row++) {

					bufb[iBand][row] = buffer.getLineFromBandByte(row, iBand);

				}	

			}

			return bufb;

		case IBuffer.TYPE_SHORT:

			short[][][] bufs = new short[getBandCount()][][];

			for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) {

				for (int row = 0; row < blockHeight; row++) {

					bufs[iBand][row] = buffer.getLineFromBandShort(row, iBand);

				}	

			}

			return bufs;

		case IBuffer.TYPE_INT:

			int[][][] bufi = new int[getBandCount()][][];

			for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) {

				for (int row = 0; row < blockHeight; row++) {

					bufi[iBand][row] = buffer.getLineFromBandInt(row, iBand);

				}	

			}

			return bufi;

		case IBuffer.TYPE_FLOAT: 

			float[][][] buff = new float[getBandCount()][][];

			for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) {

				for (int row = 0; row < blockHeight; row++) {

					buff[iBand][row] = buffer.getLineFromBandFloat(row, iBand);

				}	

			}

			return buff;

		case IBuffer.TYPE_DOUBLE: 

			double[][][] bufd = new double[getBandCount()][][];

			for (int iBand = 0; iBand < buffer.getBandCount(); iBand++) {

				for (int row = 0; row < blockHeight; row++) {

					bufd[iBand][row] = buffer.getLineFromBandDouble(row, iBand);

				}	

			}

			return bufd;

		}

		return null;

	}