Package noaa.coastwatch.io

Class WorldFileWriter

java.lang.Object

noaa.coastwatch.io.WorldFileWriter

public class WorldFileWriter
extends Object

The WorldFileWriter class writes ASCII text world files that store image to map coordinate transformation parameters as a set of floating point values. World files contain the following lines:

• Line 1: x-dimension of a pixel in map units
• Line 2: rotation parameter
• Line 3: rotation parameter
• Line 4: NEGATIVE of y-dimension of a pixel in map units
• Line 5: x-coordinate of center of upper left pixel
• Line 6: y-coordinate of center of upper left pixel

More information on world files and the naming conventions for world files may be found at ESRI's support center:

• FAQ: What is the format of the world file used for georeferencing images?
• Object: [O-Image] Supported image formats for ArcIMS 4.0, 4.0.1 and 9.0

Since:

3.2.0

Author:

Peter Hollemans

Constructor Summary

Constructors

Constructor	Description
WorldFileWriter(OutputStream output, EarthImageTransform trans)	Creates a new writer using the specified output stream.

Method Summary

Modifier and Type	Method	Description
void	write()	Writes a world file to the output stream.

Methods inherited from class java.lang.Object

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

Constructor Details

WorldFileWriter

public WorldFileWriter(OutputStream output,
 EarthImageTransform trans)
                throws IOException

Creates a new writer using the specified output stream.

Parameters:

output - the output stream for writing.

trans - the earth image transform for earth location metadata.

Throws:

IllegalArgumentException - if the earth transform is not a map projection.

IOException

Method Details

write

public void write()
           throws IOException

Writes a world file to the output stream.

Throws:

IOException - if an error occurred writing to the output stream.