edu.d.umn.fileformats
Class ElevationFile

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

Direct Known Subclasses:

DDFFileAbstract, DemFile

public abstract class ElevationFile
extends java.lang.Object

ElevationFile is an abstract base class used to define the interface between files holding terrain data and the JAVA3D classes that convert the terrain data into geometric primitives.

Field Summary

int[][]	elevations two dimensional array of elevation data in meters, array represents equally spaced data points across the groundCoordinates.
java.lang.String	fileName data file name
java.lang.String	filePath Path to the file, not including the file name.
GroundCoordinates	groundCoordinates holds ground coordinates of the 4 corners in arc seconds
int	maxElevation maximum elevation in meters
int	minElevation minimum elevation in meters
int	nColumns number of data columns
int	nRows number of data rows
java.lang.String	quadrangleName geographic name or title of the data
protected float	resolution The overall resolution of the file.

Constructor Summary

ElevationFile()
Does nothing.

Method Summary

float

getResolution() Accessor for the resolution field of the ElevationFile.

Methods inherited from class java.lang.Object

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

Field Detail

filePath

public java.lang.String filePath

Path to the file, not including the file name.

fileName

public java.lang.String fileName

data file name

quadrangleName

public java.lang.String quadrangleName

geographic name or title of the data

minElevation

public int minElevation

minimum elevation in meters

maxElevation

public int maxElevation

maximum elevation in meters

elevations

public int[][] elevations

two dimensional array of elevation data in meters, array represents equally spaced data points across the groundCoordinates. The first dimension is the row, the second the column

nRows

public int nRows

number of data rows

nColumns

public int nColumns

number of data columns

groundCoordinates

public GroundCoordinates groundCoordinates

holds ground coordinates of the 4 corners in arc seconds

resolution

protected float resolution

The overall resolution of the file. Typically will be 24k for a USGS SDTS DEM.

Constructor Detail

ElevationFile

public ElevationFile()

Does nothing.

Method Detail

getResolution

public float getResolution()

Accessor for the resolution field of the ElevationFile.

Returns:

The resolution.