Nitf::ImageReader Class Reference

class for representing an NITF image segment as an LTIImageReader More...

#include <ImageReader.h>

Inheritance diagram for Nitf::ImageReader:

LTIGeoImageReader LTIImageReader LTIOverrideDimensions< LTIOverridePixelProps< LTIOverrideBackgroundPixel< LTIOverrideGeoCoord< LTIOverrideMagnification< LTIOverrideIsSelective< LTIOverrideStripHeight< LTIOverrideDelegates< LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > > > > > > > > > LTIOverridePixelProps< LTIOverrideBackgroundPixel< LTIOverrideGeoCoord< LTIOverrideMagnification< LTIOverrideIsSelective< LTIOverrideStripHeight< LTIOverrideDelegates< LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > > > > > > > > LTIOverrideDimensionsData LTIOverrideBackgroundPixel< LTIOverrideGeoCoord< LTIOverrideMagnification< LTIOverrideIsSelective< LTIOverrideStripHeight< LTIOverrideDelegates< LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > > > > > > > LTIOverridePixelPropsData LTIOverrideGeoCoord< LTIOverrideMagnification< LTIOverrideIsSelective< LTIOverrideStripHeight< LTIOverrideDelegates< LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > > > > > > LTIOverrideBackgroundPixelData LTIOverrideMagnification< LTIOverrideIsSelective< LTIOverrideStripHeight< LTIOverrideDelegates< LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > > > > > LTIOverrideGeoCoordData LTIOverrideIsSelective< LTIOverrideStripHeight< LTIOverrideDelegates< LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > > > > LTIOverrideMagnificationData LTIOverrideStripHeight< LTIOverrideDelegates< LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > > > LTIOverrideIsSelectiveData LTIOverrideDelegates< LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > > LTIOverrideStripHeightData LTIOverridePixelLookupTables< LTIOverrideMetadata< LTIImageStage > > LTIOverrideDelegatesData LTIOverrideMetadata< LTIImageStage > LTIOverridePixelLookupTablesData LTIImageStage LTIOverrideMetadataData LTIImage LTIReferenceCountedObject

List of all members.

Public Member Functions

const char * getIID1 () const
 returns the IID1 field for the segment
lt_int64 getPhysicalFileSize () const
NITFReaderManager & getManager () const
Format getFormat () const
 returns the compression format of the segment
Layout getLayout () const
 returns the pixel layout of the segment
bool isBlocked () const
 returns true iff the image segment is in blocked form
bool isMasked () const
 returns true iff block masking is used in the image segment
int getSegmentNumber () const
 returns the index of this image segment
const ImageSegmentMetadatagetImageMetadata () const
 returns the image segment metadata object for this segment
const SecurityMetadatagetSecurityMetadata () const
 returns the security metadata object for this segment
LT_STATUS getDimsAtMag (double mag, lt_uint32 &width, lt_uint32 &height) const =0
 get image width and height at given magnification
virtual LT_STATUS setTileMaskList (const lt_uint32 *tileMaskList, lt_uint32 tileMaskListLen)

Protected Member Functions

 ~ImageReader (void)
 ImageReader (bool supportBandSelection)
const char * getSourceName (void) const
LT_STATUS init (LTIOStreamInf *stream, NITFReaderManager *manager, const ImageSegment *imageSegment, bool useWorldFile)
LT_STATUS addUnderlyingMetadata (const LTIImageStage &image)
LTIScene computeBlockedScene (const LTIScene &scene) const
LT_STATUS copyIntoUserBuffer (const LTIScene &dstScene, LTISceneBuffer &dstBuffer) const
bool activeSceneContains (const LTIScene &scene) const
void putBlockIntoBuffer_SEQ (LTISceneBuffer &cBuffer, lt_uint8 *buf, lt_uint32 blockRow, lt_uint32 blockCol, lt_uint32 blockBand) const
void putBlockIntoBuffer_BLOCK (LTISceneBuffer &cBuffer, lt_uint8 *buf, lt_uint32 blockRow, lt_uint32 blockCol) const
void putBlockIntoBuffer_PIXEL (LTISceneBuffer &cBuffer, lt_uint8 *buf, lt_uint32 blockRow, lt_uint32 blockCol) const
void putBlockIntoBuffer_ROW (LTISceneBuffer &cBuffer, lt_uint8 *buf, lt_uint32 blockRow, lt_uint32 blockCol) const

Protected Attributes

LTIOStreamInfm_stream
NITFReaderManager * m_manager
const ImageSegmentm_imageSegment
const FileHeaderm_fileHeader
LTReusableBuffer * m_reusableBuffer
LTIScenem_activeScene
LTISceneBufferm_activeSceneBuffer


Detailed Description

This class provides support for representing an NITF image segment as an LTIImageReader, from which you can extract pixel data. ImageReader objects are not to be created directly; the NITFReaderManager class contains a createReader() function for this purpose.

Definition at line 46 of file ImageReader.h.


Constructor & Destructor Documentation

Nitf::ImageReader::~ImageReader ( void   )  [protected]

Nitf::ImageReader::ImageReader ( bool  supportBandSelection  )  [protected]


Member Function Documentation

const char* Nitf::ImageReader::getIID1 (  )  const

lt_int64 Nitf::ImageReader::getPhysicalFileSize (  )  const

NITFReaderManager& Nitf::ImageReader::getManager (  )  const

Format Nitf::ImageReader::getFormat (  )  const

Layout Nitf::ImageReader::getLayout (  )  const

bool Nitf::ImageReader::isBlocked (  )  const

bool Nitf::ImageReader::isMasked (  )  const

int Nitf::ImageReader::getSegmentNumber (  )  const

const ImageSegmentMetadata* Nitf::ImageReader::getImageMetadata (  )  const

const SecurityMetadata* Nitf::ImageReader::getSecurityMetadata (  )  const

LT_STATUS Nitf::ImageReader::getDimsAtMag ( double  mag,
lt_uint32 width,
lt_uint32 height 
) const [pure virtual]

This function returns the width and height of the image, in pixels, relative to the given magnification.

Parameters:
mag magnification to determine width at
width the image width at the magnification
height the image height at the magnification
Returns:
status code indicating success or failure

Reimplemented from LTIImageReader.

virtual LT_STATUS Nitf::ImageReader::setTileMaskList ( const lt_uint32 tileMaskList,
lt_uint32  tileMaskListLen 
) [virtual]

const char* Nitf::ImageReader::getSourceName ( void   )  const [protected, virtual]

Implements LTIImageReader.

LT_STATUS Nitf::ImageReader::init ( LTIOStreamInf stream,
NITFReaderManager *  manager,
const ImageSegment imageSegment,
bool  useWorldFile 
) [protected]

LT_STATUS Nitf::ImageReader::addUnderlyingMetadata ( const LTIImageStage image  )  [protected]

LTIScene Nitf::ImageReader::computeBlockedScene ( const LTIScene scene  )  const [protected]

LT_STATUS Nitf::ImageReader::copyIntoUserBuffer ( const LTIScene dstScene,
LTISceneBuffer dstBuffer 
) const [protected]

bool Nitf::ImageReader::activeSceneContains ( const LTIScene scene  )  const [protected]

void Nitf::ImageReader::putBlockIntoBuffer_SEQ ( LTISceneBuffer cBuffer,
lt_uint8 buf,
lt_uint32  blockRow,
lt_uint32  blockCol,
lt_uint32  blockBand 
) const [protected]

void Nitf::ImageReader::putBlockIntoBuffer_BLOCK ( LTISceneBuffer cBuffer,
lt_uint8 buf,
lt_uint32  blockRow,
lt_uint32  blockCol 
) const [protected]

void Nitf::ImageReader::putBlockIntoBuffer_PIXEL ( LTISceneBuffer cBuffer,
lt_uint8 buf,
lt_uint32  blockRow,
lt_uint32  blockCol 
) const [protected]

void Nitf::ImageReader::putBlockIntoBuffer_ROW ( LTISceneBuffer cBuffer,
lt_uint8 buf,
lt_uint32  blockRow,
lt_uint32  blockCol 
) const [protected]


Member Data Documentation

Definition at line 143 of file ImageReader.h.

NITFReaderManager* Nitf::ImageReader::m_manager [protected]

Definition at line 144 of file ImageReader.h.

Definition at line 146 of file ImageReader.h.

Definition at line 147 of file ImageReader.h.

LTReusableBuffer* Nitf::ImageReader::m_reusableBuffer [protected]

Definition at line 149 of file ImageReader.h.

Definition at line 150 of file ImageReader.h.

Definition at line 151 of file ImageReader.h.


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

LizardTech