Examples with ArrayByte ucar.ma2.ArrayByte used on opensource projects

Example 1 with ArrayByte

use of ucar.ma2.ArrayByte in project imageio-ext by geosolutions-it.

the class GRIB1ImageReader method read.

/**
 * @see javax.imageio.ImageReader#read(int, javax.imageio.ImageReadParam)
 */
@Override
public BufferedImage read(int imageIndex, ImageReadParam param) throws IOException {
    BufferedImage image = null;
    Variable variable = null;
    Range indexRange = null;
    GribVariableWrapper wrapper = null;
    for (Range range : indexMap.keySet()) {
        if (range.contains(imageIndex) && range.first() <= imageIndex && imageIndex < range.last()) {
            wrapper = indexMap.get(range);
            indexRange = range;
            break;
        }
    }
    variable = wrapper.getVariable();
    /*
         * Fetches the parameters that are not already processed by utility
         * methods like 'getDestination' or 'computeRegions' (invoked below).
         */
    final int strideX, strideY;
    final int[] srcBands, dstBands;
    if (param != null) {
        strideX = param.getSourceXSubsampling();
        strideY = param.getSourceYSubsampling();
        srcBands = param.getSourceBands();
        dstBands = param.getDestinationBands();
    } else {
        strideX = 1;
        strideY = 1;
        srcBands = null;
        dstBands = null;
    }
    final int rank = wrapper.getRank();
    final int bandDimension = rank - NetCDFUtilities.Z_DIMENSION;
    /*
         * Gets the destination image of appropriate size. We create it now
         * since it is a convenient way to get the number of destination bands.
         */
    final int width = wrapper.getWidth();
    final int height = wrapper.getHeight();
    /*
         * Computes the source region (in the NetCDF file) and the destination
         * region (in the buffered image). Copies those informations into UCAR
         * Range structure.
         */
    final Rectangle srcRegion = new Rectangle();
    final Rectangle destRegion = new Rectangle();
    computeRegions(param, width, height, null, srcRegion, destRegion);
    // flipVertically(param, height, srcRegion);
    int destWidth = destRegion.x + destRegion.width;
    int destHeight = destRegion.y + destRegion.height;
    final List<Range> ranges = new LinkedList<Range>();
    for (int i = 0; i < rank; i++) {
        final int first, length, stride;
        switch(rank - i) {
            case NetCDFUtilities.X_DIMENSION:
                {
                    first = srcRegion.x;
                    length = srcRegion.width;
                    stride = strideX;
                    break;
                }
            case NetCDFUtilities.Y_DIMENSION:
                {
                    first = srcRegion.y;
                    length = srcRegion.height;
                    stride = strideY;
                    break;
                }
            default:
                {
                    if (i == bandDimension) {
                        first = NetCDFUtilities.getZIndex(variable, indexRange, imageIndex);
                    } else {
                        first = NetCDFUtilities.getTIndex(variable, indexRange, imageIndex);
                    }
                    length = 1;
                    stride = 1;
                    break;
                }
        }
        try {
            ranges.add(new Range(first, first + length - 1, stride));
        } catch (InvalidRangeException e) {
        }
    }
    final Section sections = new Section(ranges);
    /*
         * Setting SampleModel and ColorModel.
         */
    SampleModel sampleModel = wrapper.getSampleModel().createCompatibleSampleModel(destWidth, destHeight);
    ColorModel colorModel = ImageIOUtilities.createColorModel(sampleModel);
    /*
         * Reads the requested sub-region only.
         */
    final int numDstBands = 1;
    final int size = destHeight * destWidth * numDstBands;
    for (int zi = 0; zi < numDstBands; zi++) {
        final int dstBand = (dstBands == null) ? zi : dstBands[zi];
        final Array array;
        try {
            array = variable.read(sections);
            DataBuffer dataBuffer = null;
            if (array instanceof ArrayByte) {
                dataBuffer = new DataBufferByte((byte[]) array.get1DJavaArray(byte.class), size);
            } else if (array instanceof ArrayShort) {
                dataBuffer = new DataBufferShort((short[]) array.get1DJavaArray(short.class), size);
            } else if (array instanceof ArrayInt) {
                dataBuffer = new DataBufferInt((int[]) array.get1DJavaArray(int.class), size);
            } else if (array instanceof ArrayFloat) {
                dataBuffer = new DataBufferFloat((float[]) array.get1DJavaArray(float.class), size);
            } else if (array instanceof ArrayDouble) {
                dataBuffer = new DataBufferDouble((double[]) array.get1DJavaArray(double.class), size);
            }
            WritableRaster raster = Raster.createWritableRaster(sampleModel, dataBuffer, new Point(0, 0));
            image = new BufferedImage(colorModel, raster, colorModel.isAlphaPremultiplied(), null);
        } catch (InvalidRangeException e) {
        }
    }
    return image;
}

Example 2 with ArrayByte

use of ucar.ma2.ArrayByte in project imageio-ext by geosolutions-it.

the class NetCDFConverterUtilities method getRangeArray.

public static Array getRangeArray(DataType varDataType) {
    int[] dim = new int[] { 2 };
    if (varDataType == DataType.FLOAT) {
        Array array = new ArrayFloat(dim);
        Index index = array.getIndex();
        array.setFloat(index.set(0), Float.MIN_VALUE);
        array.setFloat(index.set(1), Float.MAX_VALUE);
        return array;
    } else if (varDataType == DataType.DOUBLE) {
        Array array = new ArrayDouble(dim);
        Index index = array.getIndex();
        array.setDouble(index.set(0), Double.MIN_VALUE);
        array.setDouble(index.set(1), Double.MAX_VALUE);
        return array;
    } else if (varDataType == DataType.BYTE) {
        Array array = new ArrayByte(dim);
        Index index = array.getIndex();
        array.setByte(index.set(0), Byte.MIN_VALUE);
        array.setByte(index.set(1), Byte.MAX_VALUE);
        return array;
    } else if (varDataType == DataType.SHORT) {
        Array array = new ArrayShort(dim);
        Index index = array.getIndex();
        array.setShort(index.set(0), Short.MIN_VALUE);
        array.setShort(index.set(1), Short.MAX_VALUE);
        return array;
    } else if (varDataType == DataType.INT) {
        Array array = new ArrayInt(dim);
        Index index = array.getIndex();
        array.setInt(index.set(0), Integer.MIN_VALUE);
        array.setInt(index.set(1), Integer.MAX_VALUE);
        return array;
    }
    throw new IllegalArgumentException("Actually unsupported Datatype");
}

Example 3 with ArrayByte

use of ucar.ma2.ArrayByte in project imageio-ext by geosolutions-it.

the class BaseHDF4ImageReader method read2DVariable.

protected BufferedImage read2DVariable(final int imageIndex, final ImageReadParam param) throws IOException {
    BufferedImage image = null;
    final HDF4DatasetWrapper wrapper = getDatasetWrapper(imageIndex);
    final Variable variable = wrapper.getVariable();
    /*
         * Fetches the parameters that are not already processed by utility
         * methods like 'getDestination' or 'computeRegions' (invoked below).
         */
    final int strideX, strideY;
    final int[] srcBands, dstBands;
    if (param != null) {
        strideX = param.getSourceXSubsampling();
        strideY = param.getSourceYSubsampling();
        srcBands = param.getSourceBands();
        dstBands = param.getDestinationBands();
    } else {
        strideX = 1;
        strideY = 1;
        srcBands = null;
        dstBands = null;
    }
    final int rank = variable.getRank();
    /*
         * Gets the destination image of appropriate size. We create it now
         * since it is a convenient way to get the number of destination bands.
         */
    final int width = wrapper.getWidth();
    final int height = wrapper.getHeight();
    final int numBands = wrapper.getNumBands();
    /*
         * Computes the source region (in the NetCDF file) and the destination
         * region (in the buffered image). Copies those informations into UCAR
         * Range structure.
         */
    final Rectangle srcRegion = new Rectangle();
    final Rectangle destRegion = new Rectangle();
    computeRegions(param, width, height, null, srcRegion, destRegion);
    // flipVertically(param, height, srcRegion);
    int destWidth = destRegion.x + destRegion.width;
    int destHeight = destRegion.y + destRegion.height;
    final List<Range> ranges = new LinkedList<Range>();
    for (int i = 0; i < rank; i++) {
        final int first, length, stride;
        switch(i) {
            case 1:
                {
                    first = srcRegion.x;
                    length = srcRegion.width;
                    stride = strideX;
                    break;
                }
            case 0:
                {
                    first = srcRegion.y;
                    length = srcRegion.height;
                    stride = strideY;
                    break;
                }
            default:
                {
                    first = 0;
                    length = numBands;
                    stride = 1;
                    break;
                }
        }
        try {
            ranges.add(new Range(first, first + length - 1, stride));
        } catch (InvalidRangeException e) {
        // TODO LOGME
        }
    }
    final Section sections = new Section(ranges);
    /*
         * Setting SampleModel and ColorModel.
         */
    final SampleModel sampleModel = wrapper.getSampleModel().createCompatibleSampleModel(destWidth, destHeight);
    final ColorModel colorModel = ImageIOUtilities.createColorModel(sampleModel);
    /*
         * Reads the requested sub-region only.
         */
    final int size = destHeight * destWidth * numBands;
    Array array = null;
    try {
        array = variable.read(sections);
        DataBuffer dataBuffer = null;
        if (array instanceof ArrayByte) {
            dataBuffer = new DataBufferByte((byte[]) array.get1DJavaArray(byte.class), size);
        } else if (array instanceof ArrayShort) {
            dataBuffer = new DataBufferShort((short[]) array.get1DJavaArray(short.class), size);
        } else if (array instanceof ArrayInt) {
            dataBuffer = new DataBufferInt((int[]) array.get1DJavaArray(int.class), size);
        } else if (array instanceof ArrayFloat) {
            dataBuffer = new DataBufferFloat((float[]) array.get1DJavaArray(float.class), size);
        } else if (array instanceof ArrayDouble) {
            dataBuffer = new DataBufferDouble((double[]) array.get1DJavaArray(double.class), size);
        }
        WritableRaster raster = Raster.createWritableRaster(sampleModel, dataBuffer, new Point(0, 0));
        image = new BufferedImage(colorModel, raster, colorModel.isAlphaPremultiplied(), null);
    } catch (InvalidRangeException e) {
    // TODO LOGME
    }
    return image;
}