edu.wisc.ssec.mcidasv.data
Class FlatFileReader

java.lang.Object
  edu.wisc.ssec.mcidasv.data.FlatFileReader

public class FlatFileReader
extends Object

Field Summary

private int	band
private int	bandCount
private boolean	bigEndian
private int	dataScale
private String	delimiter
private boolean	eastPositive
private int	elements
private float[]	floatData the actual floats read from the file
private String	interleave The data parameters
private String	latFile
private int	latlonScale
private int	lines The dimensions
private String	lonFile
private double	lrLat
private double	lrLon
private int	myFormat which format this object is representing
private int	myNavigation
private int	navElements
(package private) CoordinateSystem	navigationCoords
(package private) Gridded2DSet	navigationSet cache the nav info when possible
private int	navLines The nav dimensions
private int	offset
private int	stride
private int	strideElements
private int	strideLines
private double	ulLat The nav parameters
private double	ulLon
private String	unit
private String	url The url

Constructor Summary

FlatFileReader()
Ctor for xml encoding

FlatFileReader(String filename)
CTOR

FlatFileReader(String filename, int lines, int elements)
CTOR

Method Summary

private static int	bytesTo1ByteUInt(byte[] bytes, int offset)
private static int	bytesTo2ByteSInt(byte[] bytes, int offset)
private static int	bytesTo2ByteUInt(byte[] bytes, int offset)
private static float	bytesTo4ByteFloat(byte[] bytes, int offset)
private static int	bytesTo4ByteSInt(byte[] bytes, int offset)
private static double	bytesToDouble(byte[] bytes)
private static long	bytesToLong(byte[] bytes)
Data	getData() Return a valid data object for a DataSource
private Data	getDataFromImage() Make a FlatField from an Image
private FlatField	getFlatField() float array -> flatfield
float[]	getFloats() Return the array of floats making up the data
private Gridded2DSet	getNavigationSetFromBounds() Make a Gridded2DSet from bounds
private Gridded2DSet	getNavigationSetFromFiles() Make a Gridded2DSet from files
private void	makeCoordinateSystem() Create navigation info if it hasn't been built
private void	readFloatsFromAscii() Read floats from an ASCII file
private void	readFloatsFromBinary() Read floats from a binary file
void	setAsciiInfo(String delimiter, int dataScale)
void	setBinaryInfo(int format, String interleave, boolean bigEndian, int offset, int band, int bandCount)
void	setEastPositive(boolean eastPositive)
void	setImageInfo()
void	setNavBounds(double ulLat, double ulLon, double lrLat, double lrLon)
void	setNavFiles(String latFile, String lonFile, int latlonScale)
void	setStride(int stride)
void	setUnit(String unit)
String	toString() toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

url

private String url

The url

lines

private int lines

The dimensions

elements

private int elements

strideLines

private int strideLines

strideElements

private int strideElements

band

private int band

bandCount

private int bandCount

unit

private String unit

stride

private int stride

navLines

private int navLines

The nav dimensions

navElements

private int navElements

interleave

private String interleave

The data parameters

bigEndian

private boolean bigEndian

offset

private int offset

delimiter

private String delimiter

dataScale

private int dataScale

ulLat

private double ulLat

The nav parameters

ulLon

private double ulLon

lrLat

private double lrLat

lrLon

private double lrLon

latFile

private String latFile

lonFile

private String lonFile

latlonScale

private int latlonScale

eastPositive

private boolean eastPositive

myFormat

private int myFormat

which format this object is representing

myNavigation

private int myNavigation

floatData

private float[] floatData

the actual floats read from the file

navigationSet

Gridded2DSet navigationSet

cache the nav info when possible

navigationCoords

CoordinateSystem navigationCoords

Constructor Detail

FlatFileReader

public FlatFileReader()

Ctor for xml encoding

FlatFileReader

public FlatFileReader(String filename)

CTOR

Parameters:

filename - The filename

FlatFileReader

public FlatFileReader(String filename,
                      int lines,
                      int elements)

CTOR

Parameters:

filename - The filename

lines - The number of lines

elements - The number of elements

band - The band

Method Detail

setBinaryInfo

public void setBinaryInfo(int format,
                          String interleave,
                          boolean bigEndian,
                          int offset,
                          int band,
                          int bandCount)

Parameters:

delimiter - The data value delimiter

dataScale - The data scale factor

setAsciiInfo

public void setAsciiInfo(String delimiter,
                         int dataScale)

Parameters:

delimiter - The data value delimiter

dataScale - The data scale factor

setImageInfo

public void setImageInfo()

Parameters:

delimiter - The data value delimiter

dataScale - The data scale factor

setNavBounds

public void setNavBounds(double ulLat,
                         double ulLon,
                         double lrLat,
                         double lrLon)

Parameters:

ulLat - The upper left latitude

ulLon - The upper left longitude

lrLat - The lower right latitude

lrLon - The lower right longitude

setNavFiles

public void setNavFiles(String latFile,
                        String lonFile,
                        int latlonScale)

Parameters:

ulLat - The latitude file

ulLon - The longitude file

latlonScale - The navigation value scaling

setEastPositive

public void setEastPositive(boolean eastPositive)

Parameters:

eastPositive -

setStride

public void setStride(int stride)

Parameters:

stride -

setUnit

public void setUnit(String unit)

Parameters:

unit -

readFloatsFromBinary

private void readFloatsFromBinary()

Read floats from a binary file

readFloatsFromAscii

private void readFloatsFromAscii()

Read floats from an ASCII file

getDataFromImage

private Data getDataFromImage()

Make a FlatField from an Image

getNavigationSetFromBounds

private Gridded2DSet getNavigationSetFromBounds()

Make a Gridded2DSet from bounds

getNavigationSetFromFiles

private Gridded2DSet getNavigationSetFromFiles()

Make a Gridded2DSet from files

makeCoordinateSystem

private void makeCoordinateSystem()

Create navigation info if it hasn't been built

getData

public Data getData()

Return a valid data object for a DataSource

getFloats

public float[] getFloats()

Return the array of floats making up the data

getFlatField

private FlatField getFlatField()
                        throws IOException,
                               VisADException

float array -> flatfield

Throws:

IOException

VisADException

toString

public String toString()

toString

Overrides:

toString in class Object

Returns:

toString

bytesTo1ByteUInt

private static int bytesTo1ByteUInt(byte[] bytes,
                                    int offset)

bytesTo2ByteUInt

private static int bytesTo2ByteUInt(byte[] bytes,
                                    int offset)

bytesTo2ByteSInt

private static int bytesTo2ByteSInt(byte[] bytes,
                                    int offset)

bytesTo4ByteSInt

private static int bytesTo4ByteSInt(byte[] bytes,
                                    int offset)

bytesTo4ByteFloat

private static float bytesTo4ByteFloat(byte[] bytes,
                                       int offset)

bytesToLong

private static long bytesToLong(byte[] bytes)

bytesToDouble

private static double bytesToDouble(byte[] bytes)