org.kepler.gis.util

Class RasterUtilities

java.lang.Object

org.kepler.gis.util.RasterUtilities

public class RasterUtilities
extends java.lang.Object

A collection of utilities for rasters.

Author:

Daniel Crawl

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RasterUtilities.RasterInfo Utility class that contains information about a raster.

Method Summary

Modifier and Type	Method and Description
static void	closeReaders() Close all readers opened by getReader() and getCoverage().
static boolean	convertFileFormat(java.io.File inputFile, java.io.File outputFile, java.lang.Integer noData) Convert raster file formats using gdal_translate.
static org.opengis.coverage.grid.GridCoverage	getCoverage(java.io.File file, org.opengis.referencing.crs.CoordinateReferenceSystem defaultCRS) Get a coverage for a raster file.
static java.lang.Integer[]	getGridSize(RasterToken raster) Get the grid size of a raster.
static RasterUtilities.RasterInfo	getInfo(java.io.File file) Get a RasterInfo object for a raster file.
static org.geotools.coverage.grid.io.AbstractGridCoverage2DReader	getReader(java.io.File file, org.opengis.referencing.crs.CoordinateReferenceSystem defaultCRS) Get a reader for a raster file.
static java.io.File	reproject(java.io.File rasterFile, org.opengis.referencing.crs.CoordinateReferenceSystem destCRS) Reproject a raster file.
static void	reprojectToResolveGCP(java.io.File inputFile, java.io.File outputFile) Reproject a raster using gdalwarp to resolve ground control points.

Methods inherited from class java.lang.Object

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

Method Detail

getCoverage

public static org.opengis.coverage.grid.GridCoverage getCoverage(java.io.File file,
                                                                 org.opengis.referencing.crs.CoordinateReferenceSystem defaultCRS)
                                                          throws java.lang.IllegalArgumentException,
                                                                 java.io.IOException

Get a coverage for a raster file.

Returns:

Returns null if the file is an unknown format.

Throws:

java.lang.IllegalArgumentException

java.io.IOException

getGridSize

public static java.lang.Integer[] getGridSize(RasterToken raster)
                                       throws IllegalActionException

Get the grid size of a raster.

Returns:

The width and height.

Throws:

IllegalActionException

getReader

public static org.geotools.coverage.grid.io.AbstractGridCoverage2DReader getReader(java.io.File file,
                                                                                   org.opengis.referencing.crs.CoordinateReferenceSystem defaultCRS)

Get a reader for a raster file.

Returns:

Returns null if file is unknown format.

closeReaders

public static void closeReaders()

Close all readers opened by getReader() and getCoverage().

convertFileFormat

public static boolean convertFileFormat(java.io.File inputFile,
                                        java.io.File outputFile,
                                        java.lang.Integer noData)

Convert raster file formats using gdal_translate.

getInfo

public static RasterUtilities.RasterInfo getInfo(java.io.File file)
                                          throws IllegalActionException

Get a RasterInfo object for a raster file. This method calls "gdalinfo" to find the CRS and bounding box.

Throws:

IllegalActionException

reproject

public static java.io.File reproject(java.io.File rasterFile,
                                     org.opengis.referencing.crs.CoordinateReferenceSystem destCRS)
                              throws IllegalActionException

Reproject a raster file.

Parameters:

rasterFile - the raster file.

destCRS - the CRS to reproject to.

Throws:

IllegalActionException

reprojectToResolveGCP

public static void reprojectToResolveGCP(java.io.File inputFile,
                                         java.io.File outputFile)
                                  throws IllegalActionException

Reproject a raster using gdalwarp to resolve ground control points.

Throws:

IllegalActionException