com.revolsys.gdal

Class Gdal

java.lang.Object

com.revolsys.gdal.Gdal

public class Gdal
extends Object

Constructor Summary

Constructors

Constructor and Description
Gdal()

Method Summary

Methods

Modifier and Type	Method and Description
static Dataset	closeDataSet(Dataset dataSet)
static BufferedImage	getBufferedImage(Dataset dataset)
static BufferedImage	getBufferedImage(Dataset dataset, int overviewIndex) Convert the overview raster from Dataset to a BufferedImage .
static BufferedImage	getBufferedImage(Dataset dataset, int overviewIndex, int sourceOffsetX, int sourceOffsetY, int sourceWidth, int sourceHeight) Convert the overview raster from Dataset to a BufferedImage .
static BufferedImage	getBufferedImage(Dataset dataset, int overviewIndex, int sourceOffsetX, int sourceOffsetY, int sourceWidth, int sourceHeight, int targetWidth, int targetHeight) Convert the overview raster from Dataset to a BufferedImage .
static BufferedImage	getBufferedImage(File file)
static BufferedImage	getBufferedImage(String fileName)
static CoordinateSystem	getCoordinateSystem(SpatialReference spatialReference)
static Dataset	getDataset(File file)
static Dataset	getDataset(File file, int mode)
static Dataset	getDataset(String fileName)
static Dataset	getDataset(String name, int mode)
static SpatialReference	getSpatialReference(CoordinateSystem coordinateSystem)
static SpatialReference	getSpatialReference(int srid)
static String	getSpatialReferenceWkt(int srid)
static String	getVersion()
static void	init()
static boolean	isAvailable()
static boolean	isDriverAvailable(String driverName) Returns true if a driver for the specific format is available.
static long	loadSettings(Dataset dataset, org.springframework.core.io.Resource resource)
static void	setProjectionFromPrjFile(Dataset dataset, org.springframework.core.io.Resource resource)
static void	setSpatialReference(Dataset dataset, CoordinateSystem coordinateSystem)

Methods inherited from class java.lang.Object

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

Constructor Detail

Gdal

public Gdal()

Method Detail

closeDataSet

public static Dataset closeDataSet(Dataset dataSet)

getBufferedImage

public static BufferedImage getBufferedImage(Dataset dataset)

getBufferedImage

public static BufferedImage getBufferedImage(Dataset dataset,
                             int overviewIndex)

Convert the overview raster from Dataset to a BufferedImage . The result image will be the dimensions of the overview raster.

Parameters:

dataset - The image dataset.

overviewIndex - The index of the overview raster data. Use -1 for the whole image.

Returns:

The buffered image

getBufferedImage

public static BufferedImage getBufferedImage(Dataset dataset,
                             int overviewIndex,
                             int sourceOffsetX,
                             int sourceOffsetY,
                             int sourceWidth,
                             int sourceHeight)

Convert the overview raster from Dataset to a BufferedImage . The raster will be clipped to the sourceOffsetX,sourceOffsetY -> sourceWidth, sourceHeight rectangle. The clip rectangle will be adjusted to fit inside the bounds of the source image. The result image will be the dimensions of sourceWidth, sourceHeight.

Parameters:

dataset - The image dataset.

overviewIndex - The index of the overview raster data. Use -1 for the whole image.

sourceOffsetX - The x location of the clip rectangle.

sourceOffsetY - The y location of the clip rectangle.

sourceWidth - The width of the clip rectangle. Use -1 to auto calculate.

sourceHeight - The height of the clip rectangle. Use -1 to auto calculate.

Returns:

The buffered image.

getBufferedImage

public static BufferedImage getBufferedImage(Dataset dataset,
                             int overviewIndex,
                             int sourceOffsetX,
                             int sourceOffsetY,
                             int sourceWidth,
                             int sourceHeight,
                             int targetWidth,
                             int targetHeight)

Convert the overview raster from Dataset to a BufferedImage . The raster will be clipped to the sourceOffsetX,sourceOffsetY -> sourceWidth, sourceHeight rectangle. The clip rectangle will be adjusted to fit inside the bounds of the source image. The result image will scaled to the the dimensions of targetWidth, targetHeight.

Parameters:

dataset - The image dataset.

overviewIndex - The index of the overview raster data. Use -1 for the whole image.

sourceOffsetX - The x location of the clip rectangle.

sourceOffsetY - The y location of the clip rectangle.

sourceWidth - The width of the clip rectangle. Use -1 to auto calculate.

sourceHeight - The height of the clip rectangle. Use -1 to auto calculate.

targetWidth - The width of the result image. Use -1 to auto calculate.

targetHeight - The height of the result image. Use -1 to auto calculate.

Returns:

The buffered image.

getBufferedImage

public static BufferedImage getBufferedImage(File file)

getBufferedImage

public static BufferedImage getBufferedImage(String fileName)

getCoordinateSystem

public static CoordinateSystem getCoordinateSystem(SpatialReference spatialReference)

getDataset

public static Dataset getDataset(File file)

getDataset

public static Dataset getDataset(File file,
                 int mode)

getDataset

public static Dataset getDataset(String fileName)

getDataset

public static Dataset getDataset(String name,
                 int mode)

getSpatialReference

public static SpatialReference getSpatialReference(CoordinateSystem coordinateSystem)

getSpatialReference

public static SpatialReference getSpatialReference(int srid)

getSpatialReferenceWkt

public static String getSpatialReferenceWkt(int srid)

getVersion

public static String getVersion()

init

public static void init()

isAvailable

public static boolean isAvailable()

isDriverAvailable

public static boolean isDriverAvailable(String driverName)

Returns true if a driver for the specific format is available. false otherwise.
It is worth to point out that a successful loading of the native library is not sufficient to grant the support for a specific format. We should also check if the proper driver is available.

Returns:

true if a driver for the specific format is available. false otherwise.

loadSettings

public static long loadSettings(Dataset dataset,
                org.springframework.core.io.Resource resource)

setProjectionFromPrjFile

public static void setProjectionFromPrjFile(Dataset dataset,
                            org.springframework.core.io.Resource resource)

setSpatialReference

public static void setSpatialReference(Dataset dataset,
                       CoordinateSystem coordinateSystem)