SoJP2ImageRW Class Reference

Class for encoding and decoding a JPEG2000 raster image More...

#include <Inventor/image/SoJP2ImageRW.h>

Inheritance diagram for SoJP2ImageRW:

Public Member Functions
virtual SoType	getTypeId () const
	Returns the type identifier for this specific instance.
	SoJP2ImageRW ()
	Constructor.
virtual	~SoJP2ImageRW ()
	Destructor.
virtual SbBool	open (SoRasterImageIO *rasterImageIO, OpenMode openMode)
	Opens the reader/writer in the specified open mode.
virtual SbBool	write (SbRasterImage *rasterImage, unsigned int xPos=0, unsigned int yPos=0)
	Writes and encodes the given data in this specific format.
virtual SbBool	read (SbRasterImage *rasterImage, SbBool infoOnly=FALSE)
	Read the current open image into rasterImage.
virtual SbBool	readRegion (SbRasterImage *rasterImage, const SbBox2i32 &region)
	Read the specified region of current open image into rasterImage.
virtual SbBool	isMultipleBufferInverted () const
	Returns the write direction when using multiple buffers.
virtual SoRasterImageRW::WriteCapability	getWriteCapability () const
	Returns the write capability of the raster format.
virtual SoRasterImageRW::ReadCapability	getReadCapability () const
	Returns the read capability of the raster format.
void	setOutputQuality (float quality)
	Sets the output quality of the image, from 0.0 (lowest quality) to 1.0 (highest quality).
float	getOutputQuality () const
	Returns the output quality.
Public Member Functions inherited from SoRasterImageRW
virtual	~SoRasterImageRW ()
	Destructor.
virtual void	close ()
	Closes the reader/writer.
virtual SbBool	checkRead (SoRasterImageFile *imageFile)
	Checks if the specified file can be read.
virtual SbBool	writeHeader (const SbVec2i32 &size)
	Writes and encodes the header for this specific format.
virtual SbBool	writeFooter ()
	Writes and encodes the footer for this specific format.
virtual SbString *	getSuffixes (int &numSuffixes) const
	Returns the list of file suffixes supported.
virtual void	enableMultipleWriting (SbBool state)
	Enable writing image with multiple calls to write method.
virtual SbBool	isMultipleWritingEnabled () const
	Returns TRUE if multiple buffer writing is enabled.
virtual SoDEPRECATED SbBool	writeHeader (SbVec2i32 &size)
	Writes and encodes the header for this specific format.
virtual SoDEPRECATED SbBool	writeHeader (SbVec2s &size)
	Writes and encodes the header for this specific format.

Static Public Member Functions
static SoType	getClassTypeId ()
	Returns the type identifier for this class.
Static Public Member Functions inherited from SoRasterImageRW
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

Additional Inherited Members
Public Types inherited from SoRasterImageRW
enum	WriteCapability {   WRITE_SCANLINES ,   WRITE_FULL_IMAGE ,   WRITE_UNAVAILABLE }
	Write Capability enumeration values. More...
enum	ReadCapability {   READ_AVAILABLE ,   READ_UNAVAILABLE }
	Read Capability enumeration values. More...
enum	OpenMode {   OPEN_READ ,   OPEN_WRITE }
	open Mode enumeration values. More...

Detailed Description

Class for encoding and decoding a JPEG2000 raster image

This class is used for encoding and decoding a JPEG2000 raster image. This class also support reading of ECW and ECWP file format.

The writeCapability is WRITE_FULL_IMAGE and isMultipleBufferInverted is FALSE.

See SoRasterImageRW for more information and code examples.

SEE ALSO

SoRasterImageFile, SoRasterImageRW, SbRasterImage

Definition at line 53 of file SoJP2ImageRW.h.

Constructor & Destructor Documentation

SoJP2ImageRW()

SoJP2ImageRW::SoJP2ImageRW

(

)

Constructor.

~SoJP2ImageRW()

virtual SoJP2ImageRW::~SoJP2ImageRW ( )

virtual

Destructor.

Member Function Documentation

getClassTypeId()

static SoType SoJP2ImageRW::getClassTypeId ( )

static

Returns the type identifier for this class.

getOutputQuality()

float SoJP2ImageRW::getOutputQuality

(

)

const

Returns the output quality.

getReadCapability()

virtual SoRasterImageRW::ReadCapability SoJP2ImageRW::getReadCapability ( ) const

virtual

Returns the read capability of the raster format.

Reimplemented from SoRasterImageRW.

getTypeId()

virtual SoType SoJP2ImageRW::getTypeId ( ) const

virtual

Returns the type identifier for this specific instance.

Implements SoRasterImageRW.

getWriteCapability()

virtual SoRasterImageRW::WriteCapability SoJP2ImageRW::getWriteCapability ( ) const

virtual

Returns the write capability of the raster format.

Reimplemented from SoRasterImageRW.

isMultipleBufferInverted()

virtual SbBool SoJP2ImageRW::isMultipleBufferInverted ( ) const

virtual

Returns the write direction when using multiple buffers.

Returns FALSE if buffers are written from top to bottom. Returns TRUE if buffers are written from bottom to top.

Reimplemented from SoRasterImageRW.

open()

virtual SbBool SoJP2ImageRW::open ( SoRasterImageIO *  rasterImageIO, OpenMode  openMode  )

virtual

Opens the reader/writer in the specified open mode.

Returns true if successful.

Reimplemented from SoRasterImageRW.

read()

virtual SbBool SoJP2ImageRW::read ( SbRasterImage *  rasterImage, SbBool  infoOnly = FALSE  )

virtual

Read the current open image into rasterImage.

Returns true if successful. Call the open() method before calling this method.

If infoOnly is TRUE, then the buffer will not be read; the parameter rasterImage will be set with raster size and raster number of components, the buffer will be NULL.

Warning

This function doesn't work with SoRasterImageIO containing only FILE*, but work fine with SoRasterImageIO with file name.

Implements SoRasterImageRW.

readRegion()

virtual SbBool SoJP2ImageRW::readRegion ( SbRasterImage *  rasterImage, const SbBox2i32 &  region  )

virtual

Read the specified region of current open image into rasterImage.

Returns true if successful. Call the open() method before calling this method.

After calling this method successfully, the size of the SbRasterImage is the requested region size. The requested region may extend outside the source image. In this case, undefined pixels are set to zero. The region may be as small as a single pixel, e.g. (1,1,1,1), but xmin must be <= xmax and ymin <= ymax.

Warning

This function doesn't work with SoRasterImageIO containing only FILE*, but work fine with SoRasterImageIO with file name.

Reimplemented from SoRasterImageRW.

setOutputQuality()

void SoJP2ImageRW::setOutputQuality

(

float

quality

)

Sets the output quality of the image, from 0.0 (lowest quality) to 1.0 (highest quality).

Default is 0.7

write()

virtual SbBool SoJP2ImageRW::write ( SbRasterImage *  rasterImage, unsigned int  xPos = 0, unsigned int  yPos = 0  )

virtual

Writes and encodes the given data in this specific format.

If you are using the multiple writing mode, then you can specify the offset (with xPos,yPos) you want to write to.

Implements SoRasterImageRW.

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The documentation for this class was generated from the following file:

• Inventor/image/SoJP2ImageRW.h