Package ca.spatial.gis.raster

Class AsciiRasterReader

java.lang.Object

ca.spatial.gis.raster.RasterLineReader

ca.spatial.gis.raster.AsciiRasterReader

public class AsciiRasterReader
extends RasterLineReader

A class to read an ASCII raster file.

The file format that is read is roughly based on the ESRI Ascii raster format, but this is extended to allow run length encoding and automatic GZIP decoding.

Constructor Summary

Constructors

Constructor	Description
AsciiRasterReader(File file)

Method Summary

Modifier and Type	Method	Description
void	close()
double	getCellSize()
int	getColForX(double x)
int	getColumnCount()
double	getCurrentY()
Extent2D	getExtent2D()
Comparable	getMissingValue()
int	getRowCount()
int	getRowForY(double y)
boolean	isMissing(Object o)
Comparable[]	nextLine()
void	rewind()

Methods inherited from class ca.spatial.gis.raster.RasterLineReader

extractVector

Methods inherited from class java.lang.Object

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

Constructor Details

AsciiRasterReader

public AsciiRasterReader(File file)
                  throws IOException

Throws:

IOException

Method Details

close

public void close()

Specified by:

close in class RasterLineReader

getCurrentY

public double getCurrentY()

Specified by:

getCurrentY in class RasterLineReader

getExtent2D

public Extent2D getExtent2D()

Specified by:

getExtent2D in class RasterLineReader

getColumnCount

public int getColumnCount()

Specified by:

getColumnCount in class RasterLineReader

rewind

public void rewind()
            throws IOException

Specified by:

rewind in class RasterLineReader

Throws:

IOException

getRowCount

public int getRowCount()

Specified by:

getRowCount in class RasterLineReader

getCellSize

public double getCellSize()

Specified by:

getCellSize in class RasterLineReader

getMissingValue

public Comparable getMissingValue()

Specified by:

getMissingValue in class RasterLineReader

getRowForY

public int getRowForY(double y)

Specified by:

getRowForY in class RasterLineReader

getColForX

public int getColForX(double x)

Specified by:

getColForX in class RasterLineReader

isMissing

public boolean isMissing(Object o)

Specified by:

isMissing in class RasterLineReader

nextLine

public Comparable[] nextLine()
                      throws IOException

Specified by:

nextLine in class RasterLineReader

Throws:

IOException