Package org.openjump.core.rasterimage

Class RasterImageIO

java.lang.Object

org.openjump.core.rasterimage.RasterImageIO

public class RasterImageIO
extends Object

Author:

deluca

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	RasterImageIO.CellSizeXY

Constructor Summary

Constructors

Constructor	Description
RasterImageIO()

Method Summary

Modifier and Type	Method	Description
static Resolution	calcRequestedResolution(Viewport viewport)
static org.locationtech.jts.geom.Coordinate	fromCellToCoordinate(Point cell, org.locationtech.jts.geom.Coordinate lowerLeftCoord, double cellSize, int rowCount)
static Point	fromCoordinateToCell(org.locationtech.jts.geom.Coordinate coord, org.locationtech.jts.geom.Coordinate lowerLeftCoord, int rowCount, double cellSizeX, double cellSizeY)
static RasterImageIO.CellSizeXY	getCellSize(String fileNameOrURL)
static Rectangle	getDrawingRectangle(int imgWidth, int imgHeight, org.locationtech.jts.geom.Envelope wholeImageEnvelope, org.locationtech.jts.geom.Envelope viewportEnvelope, Resolution subsetResolution)
static org.locationtech.jts.geom.Envelope	getGeoReferencing(String fileName, boolean alwaysLookForTFWExtension, Point imageDimensions)	Substituted by method getGeoReferencing(String fileName)
static Point	getImageDimensions(String filenameOrURL)
static Double	getNoData(String fileNameOrURL)
static org.locationtech.jts.geom.Envelope	getViewingEnvelope(Viewport viewport)
protected Rectangle	getVisibleImageCoordinatesOfImage(double imgWidth, double imgHeight, org.locationtech.jts.geom.Envelope visible, org.locationtech.jts.geom.Envelope imageEnv)
ImageAndMetadata	loadImage(String fileNameOrURL, Stats stats, org.locationtech.jts.geom.Envelope viewPortEnvelope, Resolution requestedRes)
static Raster	loadRasterData(String filenameOrURL, Rectangle subset)
static Double	readCellValue(String filenameOrURL, int col, int row, int band)
static Double	readCellValue(String fileNameOrURL, org.locationtech.jts.geom.Coordinate coordinate, int band)
void	writeImage(File outFile, Raster raster, org.locationtech.jts.geom.Envelope envelope, double cellSizeX, double cellSizeY, double noData, SRSInfo srsInfo)	Enhanced method to save the TIF with an external TIF.AUX.XML file which contains statistics of raster and spatial reference system.
void	writeImage(File outFile, Raster raster, org.locationtech.jts.geom.Envelope envelope, RasterImageIO.CellSizeXY cellSize, double noData)

Methods inherited from class java.lang.Object

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

Constructor Detail

RasterImageIO

public RasterImageIO()

Method Detail

loadImage

public ImageAndMetadata loadImage(String fileNameOrURL,
                                  Stats stats,
                                  org.locationtech.jts.geom.Envelope viewPortEnvelope,
                                  Resolution requestedRes)
                           throws Exception

Throws:

Exception

loadRasterData

public static Raster loadRasterData(String filenameOrURL,
                                    Rectangle subset)
                             throws IOException

Throws:

IOException

readCellValue

public static Double readCellValue(String fileNameOrURL,
                                   org.locationtech.jts.geom.Coordinate coordinate,
                                   int band)
                            throws Exception

Throws:

Exception

readCellValue

public static Double readCellValue(String filenameOrURL,
                                   int col,
                                   int row,
                                   int band)
                            throws IOException

Throws:

IOException

getImageDimensions

public static Point getImageDimensions(String filenameOrURL)
                                throws IOException

Throws:

IOException

getGeoReferencing

public static org.locationtech.jts.geom.Envelope getGeoReferencing(String fileName,
                                                                   boolean alwaysLookForTFWExtension,
                                                                   Point imageDimensions)
                                                            throws Exception

Substituted by method getGeoReferencing(String fileName)

Parameters:

fileName - file name

alwaysLookForTFWExtension - whether the method should read georeferencing in an associated world file (tfw)

imageDimensions -

Returns:

Envelope envelope of the image in model coordinates

Throws:

Exception - if an Exception occurs

getCellSize

public static RasterImageIO.CellSizeXY getCellSize(String fileNameOrURL)
                                            throws Exception

Throws:

Exception

getNoData

public static Double getNoData(String fileNameOrURL)
                        throws IOException

Throws:

IOException

getViewingEnvelope

public static org.locationtech.jts.geom.Envelope getViewingEnvelope(Viewport viewport)
                                                             throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

getDrawingRectangle

public static Rectangle getDrawingRectangle(int imgWidth,
                                            int imgHeight,
                                            org.locationtech.jts.geom.Envelope wholeImageEnvelope,
                                            org.locationtech.jts.geom.Envelope viewportEnvelope,
                                            Resolution subsetResolution)
                                     throws NoninvertibleTransformException

Throws:

NoninvertibleTransformException

getVisibleImageCoordinatesOfImage

protected Rectangle getVisibleImageCoordinatesOfImage(double imgWidth,
                                                      double imgHeight,
                                                      org.locationtech.jts.geom.Envelope visible,
                                                      org.locationtech.jts.geom.Envelope imageEnv)

fromCoordinateToCell

public static Point fromCoordinateToCell(org.locationtech.jts.geom.Coordinate coord,
                                         org.locationtech.jts.geom.Coordinate lowerLeftCoord,
                                         int rowCount,
                                         double cellSizeX,
                                         double cellSizeY)

fromCellToCoordinate

public static org.locationtech.jts.geom.Coordinate fromCellToCoordinate(Point cell,
                                                                        org.locationtech.jts.geom.Coordinate lowerLeftCoord,
                                                                        double cellSize,
                                                                        int rowCount)

writeImage

public void writeImage(File outFile,
                       Raster raster,
                       org.locationtech.jts.geom.Envelope envelope,
                       RasterImageIO.CellSizeXY cellSize,
                       double noData)
                throws IOException

Throws:

IOException

writeImage

public void writeImage(File outFile,
                       Raster raster,
                       org.locationtech.jts.geom.Envelope envelope,
                       double cellSizeX,
                       double cellSizeY,
                       double noData,
                       SRSInfo srsInfo)
                throws IOException,
                       TransformerConfigurationException,
                       ParserConfigurationException,
                       TransformerException,
                       SAXException

Enhanced method to save the TIF with an external TIF.AUX.XML file which contains statistics of raster and spatial reference system. Worldfile is not saved as geographic position is already stored into the TIF file. Statistics are calculated from raster

Parameters:

outFile - output file

raster - a Raster

envelope - Envelope of the image to write

cellSizeX - cell width in model coordinates

cellSizeY - cell height in model coordinates

noData - value to use for nodata

srsInfo - SRSInfo associated to this Raster

Throws:

IOException - if an IOException occurs

TransformerConfigurationException - if a TransformerConfigurationException occurs

ParserConfigurationException - if a ParserConfigurationException occurs

TransformerException - if a TransformerException occurs

SAXException - if a SAXException occurs

calcRequestedResolution

public static Resolution calcRequestedResolution(Viewport viewport)