ucar.nc2.iosp.mcidas
Class McIDASGridReader

java.lang.Object
  ucar.nc2.iosp.mcidas.McIDASGridReader

public class McIDASGridReader
extends java.lang.Object

Read grid(s) from a McIDAS grid file

Field Summary

protected boolean	needToSwap swap flag
protected RandomAccessFile	rf The file

Constructor Summary

McIDASGridReader()
Bean ctor

McIDASGridReader(RandomAccessFile raf)
Create a McIDASGrid Reader from the file

McIDASGridReader(java.lang.String filename)
Create a McIDASGrid Reader from the file

Method Summary

GridIndex	getGridIndex() to get the grid header corresponding to the last grid read
protected boolean	init() Initialize this reader.
void	init(RandomAccessFile raf) Initialize the file, read in all the metadata (ala DM_OPEN)
static void	main(java.lang.String[] args) for testing purposes
float[]	readGrid(McIDASGridRecord gr) Read the grid
int	readInt(int word) Read an integer

Methods inherited from class java.lang.Object

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

Field Detail

rf

protected RandomAccessFile rf

The file

needToSwap

protected boolean needToSwap

swap flag

Constructor Detail

McIDASGridReader

public McIDASGridReader()

Bean ctor

McIDASGridReader

public McIDASGridReader(java.lang.String filename)
                 throws java.io.IOException

Create a McIDASGrid Reader from the file

Parameters:

filename - filename

Throws:

java.io.IOException - problem reading file

McIDASGridReader

public McIDASGridReader(RandomAccessFile raf)
                 throws java.io.IOException

Create a McIDASGrid Reader from the file

Parameters:

raf - RandomAccessFile

Throws:

java.io.IOException - problem reading file

Method Detail

init

public final void init(RandomAccessFile raf)
                throws java.io.IOException

Initialize the file, read in all the metadata (ala DM_OPEN)

Parameters:

raf - RandomAccessFile to read.

Throws:

java.io.IOException - problem reading file

init

protected boolean init()
                throws java.io.IOException

Initialize this reader. Get the Grid specific info

Returns:

true if successful

Throws:

java.io.IOException - problem reading the data

readGrid

public float[] readGrid(McIDASGridRecord gr)

Read the grid

Parameters:

gr - the grid record

Returns:

the data

getGridIndex

public GridIndex getGridIndex()

to get the grid header corresponding to the last grid read

Returns:

McIDASGridDirectory of the last grid read

readInt

public int readInt(int word)
            throws java.io.IOException

Read an integer

Parameters:

word - word in file (0 based) to read

Returns:

int read

Throws:

java.io.IOException - problem reading file

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

for testing purposes

Parameters:

args - file name

Throws:

java.io.IOException - problem reading file