eu.baltrad.dex.db.util.BltDataProcessor Class Reference

Public Member Functions
	BltDataProcessor ()
Dataset	getH5Dataset ()
Attribute	getH5Attribute ()
H5File	openH5File (String fileName) throws RuntimeException
void	closeH5File (H5File h5File) throws RuntimeException
Group	getH5Root (H5File h5File) throws RuntimeException
void	getH5DatasetPaths (Group root, List< String > paths) throws RuntimeException
void	getH5Dataset (Group root, String path) throws RuntimeException
void	getH5Attribute (Group root, String groupPath, String attributeName) throws RuntimeException
Object	getH5AttributeValue ()
BltAttribute	findAttribute (Group root, String groupPath, String attributeName) throws RuntimeException
BufferedImage	polar2Image (long nbins, double rscale, double nodata, double undetect, double offset, double gain, Dataset dataset, Color[] palette, int outputImageSize, boolean rangeRings, boolean rangeMask) throws RuntimeException
BufferedImage	cart2Image (long width, long height, double noData, Dataset dataset, Color[] palette, int outputImageWidth, int outputImageHeight, boolean rangeMask) throws RuntimeException
Color[]	createColorPalette (String fileName) throws RuntimeException
boolean	saveImageToFile (BufferedImage image, String fileName) throws RuntimeException

Static Public Attributes
static final String	H5_FILE_EXT = ".h5"
static final String	IMAGE_FILE_EXT = ".png"
static final String	H5_OBJECT_ATTR = "object"
static final String	H5_QUANTITY_ATTR = "quantity"
static final String	H5_NODATA_ATTR = "nodata"
static final String	H5_UNDETECT_ATTR = "undetect"
static final String	H5_OFFSET_ATTR = "offset"
static final String	H5_GAIN_ATTR = "gain"
static final String	H5_NBINS_ATTR = "nbins"
static final String	H5_NRAYS_ATTR = "nrays"
static final String	H5_RSCALE_ATTR = "rscale"
static final String	H5_A1GATE_ATTR = "a1gate"
static final String	H5_ELANGLE_ATTR = "elangle"
static final String	H5_NODES_ATTR = "nodes"
static final String	H5_PROJDEF_ATTR = "projdef"
static final String	H5_LAT_0_ATTR = "lat"
static final String	H5_LON_0_ATTR = "lon"
static final String	H5_UL_LAT_ATTR = "UL_lat"
static final String	H5_UL_LON_ATTR = "UL_lon"
static final String	H5_UR_LAT_ATTR = "UR_lat"
static final String	H5_UR_LON_ATTR = "UR_lon"
static final String	H5_LR_LAT_ATTR = "LR_lat"
static final String	H5_LR_LON_ATTR = "UR_lon"
static final String	H5_LL_LAT_ATTR = "LL_lat"
static final String	H5_LL_LON_ATTR = "LL_lon"
static final String	H5_XSIZE_ATTR = "xsize"
static final String	H5_YSIZE_ATTR = "ysize"
static final String	H5_PATH_SEPARATOR = "/"
static final String	H5_WHERE_GROUP_PREFIX = "where"
static final String	H5_WHAT_GROUP_PREFIX = "what"
static final String	H5_HOW_GROUP_PREFIX = "how"
static final String	H5_DATASET_PREFIX = "dataset"
static final String	DATASET_PATHS_KEY = "dataset_paths"
static final String	GROUP_PATHS_KEY = "group_paths"
static final String	ODIMH5_PVOL_OBJ = "PVOL"
static final String	ODIMH5_CVOL_OBJ = "CVOL"
static final String	ODIMH5_SCAN_OBJ = "SCAN"
static final String	ODIMH5_RAY_OBJ = "RAY"
static final String	ODIMH5_AZIM_OBJ = "AZIM"
static final String	ODIMH5_IMAGE_OBJ = "IMAGE"
static final String	ODIMH5_COMP_OBJ = "COMP"
static final String	ODIMH5_XSEC_OBJ = "XSEC"
static final String	ODIMH5_VP_OBJ = "VP"
static final String	ODIMH5_PIC_OBJ = "PIC"
static final float	DELTA_ANGLE = 0.004f
static final int	RANGE_RINGS_DISTANCE = 50

Protected Member Functions
byte[]	convertShortToByte (short[] polarData, long nbins, double nodata, double undetect, double offset, double gain)
byte[]	convertIntToByte (int[] polarData, long nbins, double nodata, double undetect, double offset, double gain)

Detailed Description

Class implements radar data processing methods.

Author

Maciej Szewczykowski | macie.nosp@m.j@ba.nosp@m.ltrad.nosp@m..eu

Version

1.7.0

Since

0.1.6

Constructor & Destructor Documentation

BltDataProcessor()

eu.baltrad.dex.db.util.BltDataProcessor.BltDataProcessor ( )

inline

Default constructor.

Member Function Documentation

cart2Image()

BufferedImage eu.baltrad.dex.db.util.BltDataProcessor.cart2Image ( long width, long height, double noData, Dataset dataset, Color[] palette, int outputImageWidth, int outputImageHeight, boolean rangeMask ) throws RuntimeException

inline

Transform Cartesian dataset into image.

Parameters

width	Dataset width
height	Dataset height
noData	Out of range areas
dataset	Dataset
palette	Color palette
outputImageWidth	Output image width
outputImageHeight	Output image height

Returns

Cartesian image

Exceptions

RuntimeException

closeH5File()

void eu.baltrad.dex.db.util.BltDataProcessor.closeH5File ( H5File h5File ) throws RuntimeException

inline

Close HDF5 file.

Parameters

h5File

H5File object

Exceptions

Runtime

exception

createColorPalette()

Color[] eu.baltrad.dex.db.util.BltDataProcessor.createColorPalette ( String fileName ) throws RuntimeException

inline

Creates color palette from file.

Parameters

fileName

Absolute path to palette file

Returns

palette Color palette

Exceptions

Runtime

exception

getH5Attribute() [1/2]

Attribute eu.baltrad.dex.db.util.BltDataProcessor.getH5Attribute ( )

inline

Get HDF5 attribute object.

Returns

Attribute object

getH5Attribute() [2/2]

void eu.baltrad.dex.db.util.BltDataProcessor.getH5Attribute ( Group root, String groupPath, String attributeName ) throws RuntimeException

inline

Gets HDF5 attribute identified by path and name.

Parameters

root	HDF5 file's root group
groupPath	Path pointing to a given group
attributeName	Attribute's name

Exceptions

Runtime

exception

getH5AttributeValue()

Object eu.baltrad.dex.db.util.BltDataProcessor.getH5AttributeValue ( )

inline

Gets attribute value.

Returns

Attribute value

getH5Dataset() [1/2]

Dataset eu.baltrad.dex.db.util.BltDataProcessor.getH5Dataset ( )

inline

Get HDF5 dataset object.

Returns

Dataset object

getH5Dataset() [2/2]

void eu.baltrad.dex.db.util.BltDataProcessor.getH5Dataset ( Group root, String path ) throws RuntimeException

inline

Seeks for a given dataset in HDF5 file

Parameters

root	HDF5 file's root group
path	Dataset path

Exceptions

Runtime

exception

getH5DatasetPaths()

void eu.baltrad.dex.db.util.BltDataProcessor.getH5DatasetPaths ( Group root, List< String > paths ) throws RuntimeException

inline

Parses HDF5 file.

Parameters

root	HDF5 file's root group
paths	Dataset paths

Exceptions

Runtime

exception

getH5Root()

Group eu.baltrad.dex.db.util.BltDataProcessor.getH5Root ( H5File h5File ) throws RuntimeException

inline

Gets reference to HDF5 file's root group.

Parameters

h5File

HDF5 file object

Returns

HDF5 file's root group

Exceptions

Runtime

exception

openH5File()

H5File eu.baltrad.dex.db.util.BltDataProcessor.openH5File ( String fileName ) throws RuntimeException

inline

Open HDF5 file.

Parameters

name

File name

Returns

H5File object if successful

Exceptions

Runtime

exception

polar2Image()

BufferedImage eu.baltrad.dex.db.util.BltDataProcessor.polar2Image ( long nbins, double rscale, double nodata, double undetect, double offset, double gain, Dataset dataset, Color[] palette, int outputImageSize, boolean rangeRings, boolean rangeMask ) throws RuntimeException

inline

Transform polar dataset into Cartesian image.

Parameters

nbins	Number of range samples per ray
rscale	Range sample size in meters
dataset	Polar dataset
palette	Color palette
outputImageSize	Output image size
rangeRings	Range rings toggle
rangeMask	Range mask toggle

Returns

Cartesian image

Exceptions

RuntimeException

saveImageToFile()

boolean eu.baltrad.dex.db.util.BltDataProcessor.saveImageToFile ( BufferedImage image, String fileName ) throws RuntimeException

inline

Saves product image to PNG file.

Parameters

image	Source image
fileName	Output file name

Returns

True upon success

Exceptions

Runtime

exception

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The documentation for this class was generated from the following file:

• src/java/eu/baltrad/dex/db/util/BltDataProcessor.java