edu.d.umn.fileformats
Class DemFile

java.lang.Object
  edu.d.umn.fileformats.ElevationFile
      edu.d.umn.fileformats.DemFile

public class DemFile
extends ElevationFile

This class is a specialization of the ElevationFile class created specifically to load DEM format data from the USGS archives.

See Also:

ElevationFile

Field Summary

static int	ARECORD_LENGTH Length of the A record of a DEM file.
static int	MIN_ARECORD_TOKENS Minimum number of A record tokens.
static int	QUADRANGLE_NAME_LENGTH Name of the quadrangle the dem file describes.

Fields inherited from class edu.d.umn.fileformats.ElevationFile

elevations, fileName, filePath, groundCoordinates, maxElevation, minElevation, nColumns, nRows, quadrangleName, resolution

Constructor Summary

DemFile(java.lang.String aFileName)
Create DemFile object from data contained in specified file

Method Summary

double	parseDemDouble(java.lang.String in) This method parses a double from a string.
int	parseDemInt(java.lang.String in) This method parses an integer from a string.

Methods inherited from class edu.d.umn.fileformats.ElevationFile

getResolution

Methods inherited from class java.lang.Object

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

Field Detail

ARECORD_LENGTH

public static final int ARECORD_LENGTH

Length of the A record of a DEM file.

See Also:

Constant Field Values

QUADRANGLE_NAME_LENGTH

public static final int QUADRANGLE_NAME_LENGTH

Name of the quadrangle the dem file describes.

See Also:

Constant Field Values

MIN_ARECORD_TOKENS

public static final int MIN_ARECORD_TOKENS

Minimum number of A record tokens.

See Also:

Constant Field Values

Constructor Detail

DemFile

public DemFile(java.lang.String aFileName)
        throws java.lang.IllegalArgumentException

Create DemFile object from data contained in specified file

Parameters:

aFileName - name of the DEM file to load. File name should be a fully qualified file name.

Throws:

java.lang.IllegalArgumentException - Thrown if the file does not meet standards for a dem file.

Method Detail

parseDemDouble

public double parseDemDouble(java.lang.String in)
                      throws java.lang.NumberFormatException

This method parses a double from a string. Note, DEM data uses the old fortan notation for storing doubles using a 'D' intead of an 'E'.

Parameters:

in - string to parse

Returns:

double value from string

Throws:

java.lang.NumberFormatException - thrown when string is not a valid double

parseDemInt

public int parseDemInt(java.lang.String in)
                throws java.lang.NumberFormatException

This method parses an integer from a string. Note, DEM data uses the old fortan notation for storing doubles using a 'D' intead of an 'E'.

Parameters:

in - string to parse

Returns:

double value from string

Throws:

java.lang.NumberFormatException - thrown when string is not a valid double