ossimLasHdr Class Reference

#include <ossimLasHdr.h>

Public Member Functions
	ossimLasHdr ()
	ossimLasHdr (const ossimLasHdr &hdr)
const ossimLasHdr &	operator= (const ossimLasHdr &hdr)
	~ossimLasHdr ()
bool	checkSignature (std::istream &in) const
	Checks for LASF in first four bytes. More...
void	readStream (std::istream &in)
	Method to initialize from input stream. More...
void	writeStream (std::ostream &out)
	Writes header to stream. More...
std::ostream &	print (std::ostream &out) const
	print method. More...
void	getKeywordlist (ossimKeywordlist &kwl) const
bool	getGpsTimeTypeBit () const
bool	getWaveforDataPacketsInternalBit () const
bool	getWaveforDataPacketsExternalBit () const
bool	getReturnsSyntheticallyGeneratedBit () const
bool	getWktBit () const
std::string	getProjectIdGuid () const
std::string	getVersion () const
std::string	getSystemIndentifier () const
std::string	getGeneratingSoftware () const
ossim_uint16	getHeaderSize () const
ossim_uint32	getOffsetToPointData () const
ossim_uint32	getNumberOfVlrs () const
ossim_uint8	getPointDataFormatId () const
ossim_uint64	getNumberOfPoints () const
ossim_uint64	getNumberOfPoints (ossim_uint32 entry) const
	Gets number of points for entry where entry is synonymous returns. More...
const ossim_float64 &	getScaleFactorX () const
const ossim_float64 &	getScaleFactorY () const
const ossim_float64 &	getScaleFactorZ () const
const ossim_float64 &	getOffsetX () const
const ossim_float64 &	getOffsetY () const
const ossim_float64 &	getOffsetZ () const
const ossim_float64 &	getMinX () const
const ossim_float64 &	getMinY () const
const ossim_float64 &	getMinZ () const
const ossim_float64 &	getMaxX () const
const ossim_float64 &	getMaxY () const
const ossim_float64 &	getMaxZ () const

Private Member Functions
void	swap ()
	Performs a swap if system byte order is not little endian. More...
bool	versionGreaterThan (ossim_uint8 major, ossim_uint8 minor) const
	Test version. More...

Private Attributes
char	m_fileSignature [5]
ossim_uint16	m_fileSourceId
ossim_uint16	m_globalEncoding
ossim_uint32	m_projectIdGuidData1
ossim_uint16	m_projectIdGuidData2
ossim_uint16	m_projectIdGuidData3
ossim_uint8	m_projectIdGuidData4 [8]
ossim_uint8	m_versionMajor
ossim_uint8	m_versionMinor
char	m_systemIndentifier [32]
char	m_generatingSoftware [32]
ossim_uint16	m_fileCreationDay
ossim_uint16	m_fileCreateionYear
ossim_uint16	m_headerSize
ossim_uint32	m_offsetToPointData
ossim_uint32	m_numberOfVariableLengthRecords
ossim_uint8	m_pointDataFormatId
ossim_uint16	m_pointDataRecordLength
ossim_uint32	m_legacyNumberOfPointRecords
ossim_uint32	m_legacyNumberOfPointsByReturn [5]
ossim_float64	m_xScaleFactor
ossim_float64	m_yScaleFactor
ossim_float64	m_zScaleFactor
ossim_float64	m_xOffset
ossim_float64	m_yOffset
ossim_float64	m_zOffset
ossim_float64	m_maxX
ossim_float64	m_minX
ossim_float64	m_maxY
ossim_float64	m_minY
ossim_float64	m_maxZ
ossim_float64	m_minZ
ossim_uint64	m_startOfWaveformDataPacket
ossim_uint64	m_startOfExtendedVariableLengthRecords
ossim_uint32	m_numberOfExtendedVariableLengthRecords
ossim_uint64	m_numberOfPointRecords
ossim_uint64	m_numberOfPointsByReturn [15]

Friends
OSSIM_DLL std::ostream &	operator<< (std::ostream &out, const ossimLasHdr &hdr)
	Convenience operator<< method. More...

Detailed Description

Definition at line 24 of file ossimLasHdr.h.

Constructor & Destructor Documentation

ossimLasHdr() [1/2]

ossimLasHdr::ossimLasHdr

(

)

Definition at line 28 of file ossimLasHdr.cpp.

References m_fileSignature, m_generatingSoftware, m_legacyNumberOfPointsByReturn, m_numberOfPointsByReturn, m_projectIdGuidData4, and m_systemIndentifier.

                         :
   m_fileSourceId(0),
   m_globalEncoding(0),
   m_projectIdGuidData1(0),
   m_projectIdGuidData2(0),
   m_projectIdGuidData3(0),
   m_versionMajor(0),
   m_versionMinor(0),
   m_fileCreationDay(0),
   m_fileCreateionYear(0),
   m_headerSize(0),
   m_offsetToPointData(0),
   m_numberOfVariableLengthRecords(0),
   m_pointDataFormatId(0),
   m_pointDataRecordLength(0),
   m_legacyNumberOfPointRecords(0),
   m_xScaleFactor(0.0),
   m_yScaleFactor(0.0),
   m_zScaleFactor(0.0),
   m_xOffset(0.0),
   m_yOffset(0.0),
   m_zOffset(0.0),
   m_maxX(0.0),
   m_minX(0.0),
   m_maxY(0.0),
   m_minY(0.0),
   m_maxZ(0.0),
   m_minZ(0.0),
   m_startOfWaveformDataPacket(0),
   m_startOfExtendedVariableLengthRecords(0),
   m_numberOfExtendedVariableLengthRecords(0),
   m_numberOfPointRecords(0)
{
   // Initialize arrays:
   strncpy(m_fileSignature, "LASF", 4);
   m_fileSignature[4] = '\0';
   memset(m_projectIdGuidData4, 0, 8);
   memset(m_systemIndentifier, 0, 32);
   memset(m_generatingSoftware, 0, 32);
   memset(m_legacyNumberOfPointsByReturn, 0, 20); // 5 uint32s(5 x 4)
   memset(m_numberOfPointsByReturn, 0, 120);   // 15 unint64s(15 x 8)
}

ossimLasHdr() [2/2]

ossimLasHdr::ossimLasHdr

(

const ossimLasHdr &

hdr

)

Definition at line 71 of file ossimLasHdr.cpp.

References m_fileSignature, m_generatingSoftware, m_legacyNumberOfPointsByReturn, m_numberOfPointsByReturn, m_projectIdGuidData4, and m_systemIndentifier.

                                               :
   m_fileSourceId(hdr.m_fileSourceId),
   m_globalEncoding(hdr.m_globalEncoding),
   m_projectIdGuidData1(hdr.m_projectIdGuidData1),
   m_projectIdGuidData2(hdr.m_projectIdGuidData2),
   m_projectIdGuidData3(hdr.m_projectIdGuidData3),
   m_versionMajor(hdr.m_versionMajor),
   m_versionMinor(hdr.m_versionMinor),
   m_fileCreationDay(hdr.m_fileCreationDay),
   m_fileCreateionYear(hdr.m_fileCreateionYear),
   m_headerSize(hdr.m_headerSize),
   m_offsetToPointData(hdr.m_offsetToPointData),
   m_numberOfVariableLengthRecords(hdr.m_numberOfVariableLengthRecords),
   m_pointDataFormatId(hdr.m_pointDataFormatId),
   m_pointDataRecordLength(hdr.m_pointDataRecordLength),
   m_legacyNumberOfPointRecords(hdr.m_legacyNumberOfPointRecords),
   m_xScaleFactor(hdr.m_xScaleFactor),
   m_yScaleFactor(hdr.m_yScaleFactor),
   m_zScaleFactor(hdr.m_zScaleFactor),
   m_xOffset(hdr.m_xOffset),
   m_yOffset(hdr.m_yOffset),
   m_zOffset(hdr.m_zOffset),
   m_maxX(hdr.m_maxX),
   m_minX(hdr.m_minX),
   m_maxY(hdr.m_maxY),
   m_minY(hdr.m_minY),
   m_maxZ(hdr.m_maxZ),
   m_minZ(hdr.m_minZ),
   m_startOfWaveformDataPacket(hdr.m_startOfWaveformDataPacket),
   m_startOfExtendedVariableLengthRecords(hdr.m_startOfExtendedVariableLengthRecords),
   m_numberOfExtendedVariableLengthRecords(hdr.m_numberOfExtendedVariableLengthRecords),
   m_numberOfPointRecords(hdr.m_numberOfPointRecords)
{
   // Copy arrays.
   memcpy((void*)m_fileSignature, (void*)(hdr.m_fileSignature), 4);
   memcpy((void*)m_projectIdGuidData4, (void*)(hdr.m_projectIdGuidData4), 8);
   memcpy((void*)m_systemIndentifier, (void*)(hdr.m_systemIndentifier), 32);
   memcpy((void*)m_generatingSoftware, (void*)(hdr.m_generatingSoftware), 32);
   memcpy((void*)m_legacyNumberOfPointsByReturn, (void*)(hdr.m_legacyNumberOfPointsByReturn), 20);
   memcpy((void*)m_numberOfPointsByReturn, (void*)(hdr.m_numberOfPointsByReturn), 120);
}

~ossimLasHdr()

ossimLasHdr::~ossimLasHdr

(

)

Definition at line 163 of file ossimLasHdr.cpp.

{
}

Member Function Documentation

checkSignature()

bool ossimLasHdr::checkSignature

(

std::istream &

in

)

const

Checks for LASF in first four bytes.

Returns

true if first four bytes are LASF.

Definition at line 167 of file ossimLasHdr.cpp.

Referenced by ossimLasInfo::open(), and ossimLasInfo::print().

{
   bool result = false;
   char SIG[4];
   in.read(SIG, 4);
   if ( (SIG[0] == 'L') && (SIG[1] == 'A') &&
        (SIG[2] == 'S') && (SIG[3] == 'F') )
   {
      result = true;
   }
   return result;
}

getGeneratingSoftware()

std::string ossimLasHdr::getGeneratingSoftware

(

)

const

Returns

The generating software string.

Definition at line 473 of file ossimLasHdr.cpp.

References m_generatingSoftware.

Referenced by getKeywordlist().

{
   std::string s;
   s.reserve(32);
   for (int i=0; i<32; ++i)
   {
      s.push_back(m_generatingSoftware[i]);
   }
   return s;
}

getGpsTimeTypeBit()

bool ossimLasHdr::getGpsTimeTypeBit

(

)

const

Returns

True if bit 0 of m_globalEncoding is set, false if not.

Definition at line 405 of file ossimLasHdr.cpp.

References m_globalEncoding.

Referenced by getKeywordlist().

{
   // Test the first bit:
   std::bitset<1> bs( m_globalEncoding );
   return bs.test(0);
}

getHeaderSize()

ossim_uint16 ossimLasHdr::getHeaderSize

(

)

const

Returns

Size of this header in bytes.

Definition at line 484 of file ossimLasHdr.cpp.

References m_headerSize.

{
   return m_headerSize;
}

getKeywordlist()

void ossimLasHdr::getKeywordlist

(

ossimKeywordlist &

kwl

)

const

Definition at line 323 of file ossimLasHdr.cpp.

References ossimKeywordlist::add(), getGeneratingSoftware(), getGpsTimeTypeBit(), getProjectIdGuid(), getReturnsSyntheticallyGeneratedBit(), getSystemIndentifier(), getVersion(), getWaveforDataPacketsExternalBit(), getWaveforDataPacketsInternalBit(), getWktBit(), m_fileCreateionYear, m_fileCreationDay, m_fileSourceId, m_headerSize, m_legacyNumberOfPointRecords, m_legacyNumberOfPointsByReturn, m_maxX, m_maxY, m_maxZ, m_minX, m_minY, m_minZ, m_numberOfPointRecords, m_numberOfPointsByReturn, m_numberOfVariableLengthRecords, m_offsetToPointData, m_pointDataFormatId, m_pointDataRecordLength, m_startOfWaveformDataPacket, m_xOffset, m_xScaleFactor, m_yOffset, m_yScaleFactor, m_zOffset, m_zScaleFactor, and versionGreaterThan().

Referenced by print().

{
   kwl.add("las.file_source_id", m_fileSourceId);

   //---
   // m_globalEncoding is a bit encoding so we output bit at a time:
   // At the time of this coding only first four bits used.
   //---

   // 1.2:
   kwl.add("las.gps_time_type", (getGpsTimeTypeBit()?"1":"0") );

   if ( versionGreaterThan( 1, 2 ) )
   {
      // Added in 1.3:
      kwl.add("las.waveform_data_packets_internal", (getWaveforDataPacketsInternalBit()?"1":"0") );
      kwl.add("las.waveform_data_packets_external", (getWaveforDataPacketsExternalBit()?"1":"0") );
      kwl.add("las.synthetically_generated", (getReturnsSyntheticallyGeneratedBit()?"1":"0") );
   }

   if (  versionGreaterThan( 1, 3 ) )
   {
      // 1.4:
      kwl.add("las.wkt", (getWktBit()?"1":"0") );
   }
   
   kwl.add("las.project_id_guid", getProjectIdGuid().c_str());

   kwl.add("las.version", getVersion().c_str());

   kwl.add("las.system_indentifier", getSystemIndentifier().c_str());
   kwl.add("las.generating_software", getGeneratingSoftware().c_str());

   kwl.add("las.file_creation_day", m_fileCreationDay);
   kwl.add("las.file_creation_year", m_fileCreateionYear);

   kwl.add("las.header_size", m_headerSize);
   kwl.add("las.offset_to_point_data", m_offsetToPointData );
   kwl.add("las.number_of_variable_length_records", m_numberOfVariableLengthRecords);
   kwl.add("las.point_data_format_id", m_pointDataFormatId);
   kwl.add("las.point_data_record_length", m_pointDataRecordLength);

   kwl.add("las.x_scale_factor", m_xScaleFactor);
   kwl.add("las.y_scale_factor", m_yScaleFactor);
   kwl.add("las.z_scale_factor", m_zScaleFactor);

   kwl.add("las.x_offset", m_xOffset);
   kwl.add("las.y_offset", m_yOffset);
   kwl.add("las.z_offset", m_zOffset);
   
   kwl.add("las.max_x", m_maxX);
   kwl.add("las.min_x", m_minX);
   kwl.add("las.max_y", m_maxY);
   kwl.add("las.min_y", m_minY);
   kwl.add("las.max_z", m_maxZ);
   kwl.add("las.min_z", m_minZ);

   kwl.add("las.start_of_wave_form_data", m_startOfWaveformDataPacket);

   if ( versionGreaterThan( 1, 3 ) )
   {
      kwl.add("las.number_of_point_records", m_numberOfPointRecords);
      for (ossim_uint32 i = 0; i < 15; ++i)
      {
         std::ostringstream os;
         os << "las.number_of_points_return" << (i+1);
         kwl.add( os.str().c_str(), m_numberOfPointsByReturn[i] );
      }
   }
   else
   {
      // Prior to 1.4:
      kwl.add("las.number_of_point_records", m_legacyNumberOfPointRecords);
      for (ossim_uint32 i = 0; i < 5; ++i)
      {
         std::ostringstream os;
         os << "las.number_of_points_return" << (i+1);
         kwl.add( os.str().c_str(), m_legacyNumberOfPointsByReturn[i] );
      } 
   }
}

getMaxX()

const ossim_float64 & ossimLasHdr::getMaxX

(

)

const

Definition at line 564 of file ossimLasHdr.cpp.

References m_maxX.

Referenced by ossimLasReader::initValues().

{
   return m_maxX;
}

getMaxY()

const ossim_float64 & ossimLasHdr::getMaxY

(

)

const

Definition at line 569 of file ossimLasHdr.cpp.

References m_maxY.

Referenced by ossimLasReader::initValues().

{
   return m_maxY;
}

getMaxZ()

const ossim_float64 & ossimLasHdr::getMaxZ

(

)

const

Definition at line 574 of file ossimLasHdr.cpp.

References m_maxZ.

Referenced by ossimLasReader::initValues().

{
   return m_maxZ;
}

getMinX()

const ossim_float64 & ossimLasHdr::getMinX

(

)

const

Definition at line 549 of file ossimLasHdr.cpp.

References m_minX.

Referenced by ossimLasReader::initValues().

{
   return m_minX;
}

getMinY()

const ossim_float64 & ossimLasHdr::getMinY

(

)

const

Definition at line 554 of file ossimLasHdr.cpp.

References m_minY.

Referenced by ossimLasReader::initValues().

{
   return m_minY;
}

getMinZ()

const ossim_float64 & ossimLasHdr::getMinZ

(

)

const

Definition at line 559 of file ossimLasHdr.cpp.

References m_minZ.

Referenced by ossimLasReader::initValues().

{
   return m_minZ;
}

getNumberOfPoints() [1/2]

ossim_uint64 ossimLasHdr::getNumberOfPoints

(

)

const

Returns

The number of total points.

Definition at line 504 of file ossimLasHdr.cpp.

References m_numberOfPointRecords.

{
   return m_numberOfPointRecords;
}

getNumberOfPoints() [2/2]

ossim_uint64 ossimLasHdr::getNumberOfPoints

(

ossim_uint32

entry

)

const

Gets number of points for entry where entry is synonymous returns.

Returns

The number of points for entries 0 through 4.

Definition at line 509 of file ossimLasHdr.cpp.

References m_numberOfPointsByReturn.

{
   ossim_uint64 result = 0;
   if ( entry < 15 )
   {
      result = m_numberOfPointsByReturn[entry];
   }
   return result;
}

getNumberOfVlrs()

ossim_uint32 ossimLasHdr::getNumberOfVlrs

(

)

const

Returns

The number fo variable length records.

Definition at line 494 of file ossimLasHdr.cpp.

References m_numberOfVariableLengthRecords.

{
   return m_numberOfVariableLengthRecords;
}

getOffsetToPointData()

ossim_uint32 ossimLasHdr::getOffsetToPointData

(

)

const

Returns

Offset to point data.

Definition at line 489 of file ossimLasHdr.cpp.

References m_offsetToPointData.

Referenced by ossimLasReader::getTile(), and ossimLasReader::initValues().

{
   return m_offsetToPointData;
}

getOffsetX()

const ossim_float64 & ossimLasHdr::getOffsetX

(

)

const

Definition at line 534 of file ossimLasHdr.cpp.

References m_xOffset.

Referenced by ossimLasReader::getTile(), and ossimLasReader::initValues().

{
   return m_xOffset;
}

getOffsetY()

const ossim_float64 & ossimLasHdr::getOffsetY

(

)

const

Definition at line 539 of file ossimLasHdr.cpp.

References m_yOffset.

Referenced by ossimLasReader::getTile(), and ossimLasReader::initValues().

{
   return m_yOffset;
}

getOffsetZ()

const ossim_float64 & ossimLasHdr::getOffsetZ

(

)

const

Definition at line 544 of file ossimLasHdr.cpp.

References m_zOffset.

Referenced by ossimLasReader::getTile(), and ossimLasReader::initValues().

{
   return m_zOffset;
}

getPointDataFormatId()

ossim_uint8 ossimLasHdr::getPointDataFormatId

(

)

const

Returns

Point data format ID

Definition at line 499 of file ossimLasHdr.cpp.

References m_pointDataFormatId.

Referenced by ossimLasReader::getNewPointRecord().

{
   return m_pointDataFormatId;
}

getProjectIdGuid()

std::string ossimLasHdr::getProjectIdGuid

(

)

const

Returns

The project ID GUID data, e.g.: 55b44da7-7c23-4f86-a54ec39e8f1d1ea1

Definition at line 440 of file ossimLasHdr.cpp.

References m_projectIdGuidData1, m_projectIdGuidData2, m_projectIdGuidData3, and m_projectIdGuidData4.

Referenced by getKeywordlist().

{
   std::ostringstream os;
   os << std::hex
      << m_projectIdGuidData1 << "-"
      << m_projectIdGuidData2 << "-"
      << m_projectIdGuidData3 << "-";
   for (int i=0; i<8; ++i)
   {
      ossim_uint16 uid = m_projectIdGuidData4[i];
      os << uid;
   }
   return os.str();
}

getReturnsSyntheticallyGeneratedBit()

bool ossimLasHdr::getReturnsSyntheticallyGeneratedBit

(

)

const

Returns

True if bit 3 of m_globalEncoding is set, false if not.

Definition at line 426 of file ossimLasHdr.cpp.

References m_globalEncoding.

Referenced by getKeywordlist().

{
   // Test the fourth bit:
   std::bitset<4> bs( m_globalEncoding );
   return bs.test(3);
}

getScaleFactorX()

const ossim_float64 & ossimLasHdr::getScaleFactorX

(

)

const

Definition at line 519 of file ossimLasHdr.cpp.

References m_xScaleFactor.

Referenced by ossimLasReader::getTile(), and ossimLasReader::initValues().

{
   return m_xScaleFactor;
}

getScaleFactorY()

const ossim_float64 & ossimLasHdr::getScaleFactorY

(

)

const

Definition at line 524 of file ossimLasHdr.cpp.

References m_yScaleFactor.

Referenced by ossimLasReader::getTile(), and ossimLasReader::initValues().

{
   return m_yScaleFactor;
}

getScaleFactorZ()

const ossim_float64 & ossimLasHdr::getScaleFactorZ

(

)

const

Definition at line 529 of file ossimLasHdr.cpp.

References m_zScaleFactor.

Referenced by ossimLasReader::getTile(), and ossimLasReader::initValues().

{
   return m_zScaleFactor;
}

getSystemIndentifier()

std::string ossimLasHdr::getSystemIndentifier

(

)

const

Returns

The system identifier string.

Definition at line 462 of file ossimLasHdr.cpp.

References m_systemIndentifier.

Referenced by getKeywordlist().

{
   std::string s;
   s.reserve(32);
   for (int i=0; i<32; ++i)
   {
      s.push_back(m_systemIndentifier[i]);
   }
   return s;
}

getVersion()

std::string ossimLasHdr::getVersion

(

)

const

Returns

The major and minor version, e.g.: 1.2

Definition at line 455 of file ossimLasHdr.cpp.

References m_versionMajor, and m_versionMinor.

Referenced by getKeywordlist().

{
   std::ostringstream os;
   os << int(m_versionMajor) << "." << int(m_versionMinor);
   return os.str();
}

getWaveforDataPacketsExternalBit()

bool ossimLasHdr::getWaveforDataPacketsExternalBit

(

)

const

Returns

True if bit 2 of m_globalEncoding is set, false if not.

Definition at line 419 of file ossimLasHdr.cpp.

References m_globalEncoding.

Referenced by getKeywordlist().

{
   // Test the third bit:
   std::bitset<3> bs( m_globalEncoding );
   return bs.test(2);
}

getWaveforDataPacketsInternalBit()

bool ossimLasHdr::getWaveforDataPacketsInternalBit

(

)

const

Returns

True if bit 1 of m_globalEncoding is set, false if not.

Definition at line 412 of file ossimLasHdr.cpp.

References m_globalEncoding.

Referenced by getKeywordlist().

{
   // Test the second bit:
   std::bitset<2> bs( m_globalEncoding );
   return bs.test(1);
}

getWktBit()

bool ossimLasHdr::getWktBit

(

)

const

Returns

True if bit 4 of m_globalEncoding is set, false if not.

Definition at line 433 of file ossimLasHdr.cpp.

References m_globalEncoding.

Referenced by getKeywordlist().

{
   // Test the fith bit:
   std::bitset<5> bs( m_globalEncoding );
   return bs.test(4); 
}

operator=()

const ossimLasHdr & ossimLasHdr::operator=

(

const ossimLasHdr &

hdr

)

Definition at line 113 of file ossimLasHdr.cpp.

References m_fileCreateionYear, m_fileCreationDay, m_fileSignature, m_fileSourceId, m_generatingSoftware, m_globalEncoding, m_headerSize, m_legacyNumberOfPointRecords, m_legacyNumberOfPointsByReturn, m_maxX, m_maxY, m_maxZ, m_minX, m_minY, m_minZ, m_numberOfExtendedVariableLengthRecords, m_numberOfPointRecords, m_numberOfPointsByReturn, m_numberOfVariableLengthRecords, m_offsetToPointData, m_pointDataFormatId, m_pointDataRecordLength, m_projectIdGuidData1, m_projectIdGuidData2, m_projectIdGuidData3, m_projectIdGuidData4, m_startOfExtendedVariableLengthRecords, m_startOfWaveformDataPacket, m_systemIndentifier, m_versionMajor, m_versionMinor, m_xOffset, m_xScaleFactor, m_yOffset, m_yScaleFactor, m_zOffset, and m_zScaleFactor.

{
   if (this != &hdr)
   {
      m_fileSourceId = hdr.m_fileSourceId;
      m_globalEncoding = hdr.m_globalEncoding;
      m_projectIdGuidData1 = hdr.m_projectIdGuidData1;
      m_projectIdGuidData2 = hdr.m_projectIdGuidData2;
      m_projectIdGuidData3 = hdr.m_projectIdGuidData3;
      m_versionMajor = hdr.m_versionMajor;
      m_versionMinor = hdr.m_versionMinor;
      strncpy(m_systemIndentifier, hdr.m_systemIndentifier, 32);
      strncpy(m_generatingSoftware, hdr.m_generatingSoftware, 32);      
      m_fileCreationDay = hdr.m_fileCreationDay;
      m_fileCreateionYear = hdr.m_fileCreateionYear;
      m_headerSize = hdr.m_headerSize;
      m_offsetToPointData = hdr.m_offsetToPointData;
      m_numberOfVariableLengthRecords = hdr.m_numberOfVariableLengthRecords;
      m_pointDataFormatId = hdr.m_pointDataFormatId;
      m_pointDataRecordLength = hdr.m_pointDataRecordLength;
      m_legacyNumberOfPointRecords = hdr.m_legacyNumberOfPointRecords;
      m_xScaleFactor = hdr.m_xScaleFactor;
      m_yScaleFactor = hdr.m_yScaleFactor;
      m_zScaleFactor = hdr.m_zScaleFactor;
      m_xOffset = hdr.m_xOffset;
      m_yOffset = hdr.m_yOffset;
      m_zOffset = hdr.m_zOffset;
      m_maxX = hdr.m_maxX;
      m_minX = hdr.m_minX;
      m_maxY = hdr.m_maxY;
      m_minY = hdr.m_minY;
      m_maxZ = hdr.m_maxZ;
      m_minZ = hdr.m_minZ;
      m_startOfWaveformDataPacket = hdr.m_startOfWaveformDataPacket;
      m_startOfExtendedVariableLengthRecords = hdr.m_startOfExtendedVariableLengthRecords;
      m_numberOfExtendedVariableLengthRecords = hdr.m_numberOfExtendedVariableLengthRecords;
      m_numberOfPointRecords = hdr.m_numberOfPointRecords;

      // Copy arrays.
      memcpy((void*)m_fileSignature,(void*)(hdr.m_fileSignature), 4);
      memcpy((void*)m_projectIdGuidData4, (void*)(hdr.m_projectIdGuidData4), 8);
      memcpy((void*)m_systemIndentifier, (void*)(hdr.m_systemIndentifier), 32);
      memcpy((void*)m_generatingSoftware, (void*)(hdr.m_generatingSoftware), 32);
      memcpy((void*)m_legacyNumberOfPointsByReturn,
             (void*)(hdr.m_legacyNumberOfPointsByReturn), 20);
      memcpy((void*)m_numberOfPointsByReturn, (void*)(hdr.m_numberOfPointsByReturn), 120);
   }
   return *this;
}

print()

std::ostream & ossimLasHdr::print

(

std::ostream &

out

)

const

print method.

Returns

std::ostream&

Definition at line 311 of file ossimLasHdr.cpp.

References getKeywordlist().

Referenced by operator<<(), and ossimLasInfo::print().

{
   ossimKeywordlist kwl;
   getKeywordlist( kwl );
   return out << kwl;
}

readStream()

void ossimLasHdr::readStream

(

std::istream &

in

)

Method to initialize from input stream.

Input stream should be at beginning of file.

Parameters

in	Stream to read from.

Definition at line 180 of file ossimLasHdr.cpp.

References ossim::byteOrder(), m_fileCreateionYear, m_fileCreationDay, m_fileSignature, m_fileSourceId, m_generatingSoftware, m_globalEncoding, m_headerSize, m_legacyNumberOfPointRecords, m_legacyNumberOfPointsByReturn, m_maxX, m_maxY, m_maxZ, m_minX, m_minY, m_minZ, m_numberOfExtendedVariableLengthRecords, m_numberOfPointRecords, m_numberOfPointsByReturn, m_numberOfVariableLengthRecords, m_offsetToPointData, m_pointDataFormatId, m_pointDataRecordLength, m_projectIdGuidData1, m_projectIdGuidData2, m_projectIdGuidData3, m_projectIdGuidData4, m_startOfExtendedVariableLengthRecords, m_startOfWaveformDataPacket, m_systemIndentifier, m_versionMajor, m_versionMinor, m_xOffset, m_xScaleFactor, m_yOffset, m_yScaleFactor, m_zOffset, m_zScaleFactor, OSSIM_BIG_ENDIAN, swap(), and versionGreaterThan().

Referenced by ossimLasInfo::print().

{
   in.read(m_fileSignature, 4);
   in.read((char*)&m_fileSourceId, 2);
   in.read((char*)&m_globalEncoding, 2);
   in.read((char*)&m_projectIdGuidData1, 4);
   in.read((char*)&m_projectIdGuidData2, 2);
   in.read((char*)&m_projectIdGuidData3, 2);
   in.read((char*)&m_projectIdGuidData4, 8);
   in.read((char*)&m_versionMajor, 1);
   in.read((char*)&m_versionMinor, 1);
   in.read(m_systemIndentifier, 32);
   in.read(m_generatingSoftware, 32);
   in.read((char*)&m_fileCreationDay, 2);
   in.read((char*)&m_fileCreateionYear, 2);
   in.read((char*)&m_headerSize, 2);
   in.read((char*)&m_offsetToPointData, 4);
   in.read((char*)&m_numberOfVariableLengthRecords, 4);
   in.read((char*)&m_pointDataFormatId, 1);
   in.read((char*)&m_pointDataRecordLength, 2);
   in.read((char*)&m_legacyNumberOfPointRecords, 4);
   in.read((char*)&m_legacyNumberOfPointsByReturn, 20);
   in.read((char*)&m_xScaleFactor, 8);
   in.read((char*)&m_yScaleFactor, 8);
   in.read((char*)&m_zScaleFactor, 8);
   in.read((char*)&m_xOffset, 8);
   in.read((char*)&m_yOffset, 8);
   in.read((char*)&m_zOffset, 8);
   in.read((char*)&m_maxX, 8);
   in.read((char*)&m_minX, 8);
   in.read((char*)&m_maxY, 8);
   in.read((char*)&m_minY, 8);
   in.read((char*)&m_maxZ, 8);
   in.read((char*)&m_minZ, 8);

   // Version specific:
   if ( versionGreaterThan( 1, 2 ) )
   {
      // Added in 1.3:
      in.read((char*)&m_startOfWaveformDataPacket, 8);
   }
   if ( versionGreaterThan( 1, 3 ) )
   {
      // Added in 1.4:
      in.read((char*)&m_startOfExtendedVariableLengthRecords, 8);
      in.read((char*)&m_numberOfExtendedVariableLengthRecords, 4);
      in.read((char*)&m_numberOfPointRecords, 8);
      in.read((char*)&m_numberOfPointsByReturn, 120);
   }

   if ( ossim::byteOrder() == OSSIM_BIG_ENDIAN )
   {
      swap();
   }

   if ( !versionGreaterThan( 1, 3 ) ) // Less than 1.4
   {
      //---
      // Copy legacy point count to 64 bit data members. This will allow LAS code
      // to always go through same methods for point counts.
      //---
      m_numberOfPointRecords = m_legacyNumberOfPointRecords;
      for ( ossim_uint32 i = 0; i < 5; ++i )
      {
         m_numberOfPointsByReturn[i] = m_legacyNumberOfPointsByReturn[i];
      }
   }
}

swap()

void ossimLasHdr::swap ( )

private

Performs a swap if system byte order is not little endian.

Definition at line 579 of file ossimLasHdr.cpp.

References m_fileCreateionYear, m_fileCreationDay, m_fileSourceId, m_globalEncoding, m_headerSize, m_legacyNumberOfPointRecords, m_legacyNumberOfPointsByReturn, m_maxX, m_maxY, m_maxZ, m_minX, m_minY, m_minZ, m_numberOfExtendedVariableLengthRecords, m_numberOfPointRecords, m_numberOfPointsByReturn, m_numberOfVariableLengthRecords, m_offsetToPointData, m_pointDataRecordLength, m_projectIdGuidData1, m_projectIdGuidData2, m_projectIdGuidData3, m_startOfExtendedVariableLengthRecords, m_startOfWaveformDataPacket, m_xOffset, m_xScaleFactor, m_yOffset, m_yScaleFactor, m_zOffset, m_zScaleFactor, and ossimEndian::swap().

Referenced by readStream(), and writeStream().

{
   ossimEndian endian;
   endian.swap(m_fileSourceId);
   endian.swap(m_globalEncoding);
   endian.swap(m_projectIdGuidData1);
   endian.swap(m_projectIdGuidData2);
   endian.swap(m_projectIdGuidData3);
   endian.swap(m_fileCreationDay);
   endian.swap(m_fileCreateionYear);
   endian.swap(m_headerSize);
   endian.swap(m_offsetToPointData);
   endian.swap(m_numberOfVariableLengthRecords);
   endian.swap(m_pointDataRecordLength);
   endian.swap(m_legacyNumberOfPointRecords);
   endian.swap(m_legacyNumberOfPointsByReturn, 5);
   endian.swap(m_xScaleFactor);
   endian.swap(m_yScaleFactor);
   endian.swap(m_zScaleFactor);
   endian.swap(m_xOffset);
   endian.swap(m_yOffset);
   endian.swap(m_zOffset);
   endian.swap(m_maxX);
   endian.swap(m_minX);
   endian.swap(m_maxY);
   endian.swap(m_minY);
   endian.swap(m_maxZ);
   endian.swap(m_minZ);
   endian.swap(m_startOfWaveformDataPacket);
   endian.swap(m_startOfExtendedVariableLengthRecords);
   endian.swap(m_numberOfExtendedVariableLengthRecords);
   endian.swap(m_numberOfPointRecords);
   endian.swap(m_numberOfPointsByReturn, 15);
}

versionGreaterThan()

bool ossimLasHdr::versionGreaterThan ( ossim_uint8  major, ossim_uint8  minor  ) const

private

Test version.

Parameters

major
minor

Returns

true if m_versionMajor and m_versionMinor are greater than major and minor args.

Definition at line 614 of file ossimLasHdr.cpp.

References m_versionMajor, and m_versionMinor.

Referenced by getKeywordlist(), readStream(), and writeStream().

{
   bool result = false;
   if ( m_versionMajor == major )
   {
      result = m_versionMinor > minor;
   }
   else if ( m_versionMajor > major )
   {
      result = true;
   }
   return result;
}

writeStream()

void ossimLasHdr::writeStream

(

std::ostream &

out

)

Writes header to stream.

Definition at line 249 of file ossimLasHdr.cpp.

References ossim::byteOrder(), m_fileCreateionYear, m_fileCreationDay, m_fileSignature, m_fileSourceId, m_generatingSoftware, m_globalEncoding, m_headerSize, m_legacyNumberOfPointRecords, m_legacyNumberOfPointsByReturn, m_maxX, m_maxY, m_maxZ, m_minX, m_minY, m_minZ, m_numberOfExtendedVariableLengthRecords, m_numberOfPointRecords, m_numberOfPointsByReturn, m_numberOfVariableLengthRecords, m_offsetToPointData, m_pointDataFormatId, m_pointDataRecordLength, m_projectIdGuidData1, m_projectIdGuidData2, m_projectIdGuidData3, m_projectIdGuidData4, m_startOfExtendedVariableLengthRecords, m_startOfWaveformDataPacket, m_systemIndentifier, m_versionMajor, m_versionMinor, m_xOffset, m_xScaleFactor, m_yOffset, m_yScaleFactor, m_zOffset, m_zScaleFactor, OSSIM_BIG_ENDIAN, swap(), and versionGreaterThan().

{
   if ( ossim::byteOrder() == OSSIM_BIG_ENDIAN )
   {
      // Write little endian per spec.
      swap();
   }
   
   out.write(m_fileSignature, 4);
   out.write((char*)&m_fileSourceId, 2);
   out.write((char*)&m_globalEncoding, 2);
   out.write((char*)&m_projectIdGuidData1, 4);
   out.write((char*)&m_projectIdGuidData2, 2);
   out.write((char*)&m_projectIdGuidData3, 2);
   out.write((char*)&m_projectIdGuidData4, 8);
   out.write((char*)&m_versionMajor, 1);
   out.write((char*)&m_versionMinor, 1);
   out.write(m_systemIndentifier, 32);
   out.write(m_generatingSoftware, 32);
   out.write((char*)&m_fileCreationDay, 2);
   out.write((char*)&m_fileCreateionYear, 2);
   out.write((char*)&m_headerSize, 2);
   out.write((char*)&m_offsetToPointData, 4);
   out.write((char*)&m_numberOfVariableLengthRecords, 4);
   out.write((char*)&m_pointDataFormatId, 1);
   out.write((char*)&m_pointDataRecordLength, 2);
   out.write((char*)&m_legacyNumberOfPointRecords, 4);
   out.write((char*)&m_legacyNumberOfPointsByReturn, 20);
   out.write((char*)&m_xScaleFactor, 8);
   out.write((char*)&m_yScaleFactor, 8);
   out.write((char*)&m_zScaleFactor, 8);
   out.write((char*)&m_xOffset, 8);
   out.write((char*)&m_yOffset, 8);
   out.write((char*)&m_zOffset, 8);
   out.write((char*)&m_maxX, 8);
   out.write((char*)&m_minX, 8);
   out.write((char*)&m_maxY, 8);
   out.write((char*)&m_minY, 8);
   out.write((char*)&m_maxZ, 8);
   out.write((char*)&m_minZ, 8);

   if ( versionGreaterThan( 1, 2 ) )
   {
      // Added in 1.3:
      out.write((char*)&m_startOfWaveformDataPacket, 8);
   }
   if ( versionGreaterThan( 1, 3 ) )
   {
      // Added in 1.4:
      out.write((char*)&m_startOfExtendedVariableLengthRecords, 8);
      out.write((char*)&m_numberOfExtendedVariableLengthRecords, 4);
      out.write((char*)&m_numberOfPointRecords, 8);
      out.write((char*)&m_numberOfPointsByReturn, 120);
   }

   if ( ossim::byteOrder() == OSSIM_BIG_ENDIAN )
   {
      // Swap back to native byte order if needed:
      swap();
   }
}

Friends And Related Function Documentation

operator<<

OSSIM_DLL std::ostream& operator<< ( std::ostream &  out, const ossimLasHdr &  hdr  )

friend

Convenience operator<< method.

Definition at line 318 of file ossimLasHdr.cpp.

{
   return hdr.print(out);
}

Member Data Documentation

m_fileCreateionYear

ossim_uint16 ossimLasHdr::m_fileCreateionYear

private

Definition at line 159 of file ossimLasHdr.h.

Referenced by getKeywordlist(), operator=(), readStream(), swap(), and writeStream().

m_fileCreationDay

ossim_uint16 ossimLasHdr::m_fileCreationDay

private

Definition at line 158 of file ossimLasHdr.h.

Referenced by getKeywordlist(), operator=(), readStream(), swap(), and writeStream().

m_fileSignature

char ossimLasHdr::m_fileSignature[5]

private

Definition at line 147 of file ossimLasHdr.h.

Referenced by operator=(), ossimLasHdr(), readStream(), and writeStream().

m_fileSourceId

ossim_uint16 ossimLasHdr::m_fileSourceId

private

Definition at line 148 of file ossimLasHdr.h.

Referenced by getKeywordlist(), operator=(), readStream(), swap(), and writeStream().

m_generatingSoftware

char ossimLasHdr::m_generatingSoftware[32]

private

Definition at line 157 of file ossimLasHdr.h.

Referenced by getGeneratingSoftware(), operator=(), ossimLasHdr(), readStream(), and writeStream().

m_globalEncoding

ossim_uint16 ossimLasHdr::m_globalEncoding

private

Definition at line 149 of file ossimLasHdr.h.

Referenced by getGpsTimeTypeBit(), getReturnsSyntheticallyGeneratedBit(), getWaveforDataPacketsExternalBit(), getWaveforDataPacketsInternalBit(), getWktBit(), operator=(), readStream(), swap(), and writeStream().

m_headerSize

ossim_uint16 ossimLasHdr::m_headerSize

private

Definition at line 160 of file ossimLasHdr.h.

Referenced by getHeaderSize(), getKeywordlist(), operator=(), readStream(), swap(), and writeStream().

m_legacyNumberOfPointRecords

ossim_uint32 ossimLasHdr::m_legacyNumberOfPointRecords

private

Definition at line 165 of file ossimLasHdr.h.

Referenced by getKeywordlist(), operator=(), readStream(), swap(), and writeStream().

m_legacyNumberOfPointsByReturn

ossim_uint32 ossimLasHdr::m_legacyNumberOfPointsByReturn[5]

private

Definition at line 166 of file ossimLasHdr.h.

Referenced by getKeywordlist(), operator=(), ossimLasHdr(), readStream(), swap(), and writeStream().

m_maxX

ossim_float64 ossimLasHdr::m_maxX

private

Definition at line 173 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getMaxX(), operator=(), readStream(), swap(), and writeStream().

m_maxY

ossim_float64 ossimLasHdr::m_maxY

private

Definition at line 175 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getMaxY(), operator=(), readStream(), swap(), and writeStream().

m_maxZ

ossim_float64 ossimLasHdr::m_maxZ

private

Definition at line 177 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getMaxZ(), operator=(), readStream(), swap(), and writeStream().

m_minX

ossim_float64 ossimLasHdr::m_minX

private

Definition at line 174 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getMinX(), operator=(), readStream(), swap(), and writeStream().

m_minY

ossim_float64 ossimLasHdr::m_minY

private

Definition at line 176 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getMinY(), operator=(), readStream(), swap(), and writeStream().

m_minZ

ossim_float64 ossimLasHdr::m_minZ

private

Definition at line 178 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getMinZ(), operator=(), readStream(), swap(), and writeStream().

m_numberOfExtendedVariableLengthRecords

ossim_uint32 ossimLasHdr::m_numberOfExtendedVariableLengthRecords

private

Definition at line 181 of file ossimLasHdr.h.

Referenced by operator=(), readStream(), swap(), and writeStream().

m_numberOfPointRecords

ossim_uint64 ossimLasHdr::m_numberOfPointRecords

private

Definition at line 182 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getNumberOfPoints(), operator=(), readStream(), swap(), and writeStream().

m_numberOfPointsByReturn

ossim_uint64 ossimLasHdr::m_numberOfPointsByReturn[15]

private

Definition at line 183 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getNumberOfPoints(), operator=(), ossimLasHdr(), readStream(), swap(), and writeStream().

m_numberOfVariableLengthRecords

ossim_uint32 ossimLasHdr::m_numberOfVariableLengthRecords

private

Definition at line 162 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getNumberOfVlrs(), operator=(), readStream(), swap(), and writeStream().

m_offsetToPointData

ossim_uint32 ossimLasHdr::m_offsetToPointData

private

Definition at line 161 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getOffsetToPointData(), operator=(), readStream(), swap(), and writeStream().

m_pointDataFormatId

ossim_uint8 ossimLasHdr::m_pointDataFormatId

private

Definition at line 163 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getPointDataFormatId(), operator=(), readStream(), and writeStream().

m_pointDataRecordLength

ossim_uint16 ossimLasHdr::m_pointDataRecordLength

private

Definition at line 164 of file ossimLasHdr.h.

Referenced by getKeywordlist(), operator=(), readStream(), swap(), and writeStream().

m_projectIdGuidData1

ossim_uint32 ossimLasHdr::m_projectIdGuidData1

private

Definition at line 150 of file ossimLasHdr.h.

Referenced by getProjectIdGuid(), operator=(), readStream(), swap(), and writeStream().

m_projectIdGuidData2

ossim_uint16 ossimLasHdr::m_projectIdGuidData2

private

Definition at line 151 of file ossimLasHdr.h.

Referenced by getProjectIdGuid(), operator=(), readStream(), swap(), and writeStream().

m_projectIdGuidData3

ossim_uint16 ossimLasHdr::m_projectIdGuidData3

private

Definition at line 152 of file ossimLasHdr.h.

Referenced by getProjectIdGuid(), operator=(), readStream(), swap(), and writeStream().

m_projectIdGuidData4

ossim_uint8 ossimLasHdr::m_projectIdGuidData4[8]

private

Definition at line 153 of file ossimLasHdr.h.

Referenced by getProjectIdGuid(), operator=(), ossimLasHdr(), readStream(), and writeStream().

m_startOfExtendedVariableLengthRecords

ossim_uint64 ossimLasHdr::m_startOfExtendedVariableLengthRecords

private

Definition at line 180 of file ossimLasHdr.h.

Referenced by operator=(), readStream(), swap(), and writeStream().

m_startOfWaveformDataPacket

ossim_uint64 ossimLasHdr::m_startOfWaveformDataPacket

private

Definition at line 179 of file ossimLasHdr.h.

Referenced by getKeywordlist(), operator=(), readStream(), swap(), and writeStream().

m_systemIndentifier

char ossimLasHdr::m_systemIndentifier[32]

private

Definition at line 156 of file ossimLasHdr.h.

Referenced by getSystemIndentifier(), operator=(), ossimLasHdr(), readStream(), and writeStream().

m_versionMajor

ossim_uint8 ossimLasHdr::m_versionMajor

private

Definition at line 154 of file ossimLasHdr.h.

Referenced by getVersion(), operator=(), readStream(), versionGreaterThan(), and writeStream().

m_versionMinor

ossim_uint8 ossimLasHdr::m_versionMinor

private

Definition at line 155 of file ossimLasHdr.h.

Referenced by getVersion(), operator=(), readStream(), versionGreaterThan(), and writeStream().

m_xOffset

ossim_float64 ossimLasHdr::m_xOffset

private

Definition at line 170 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getOffsetX(), operator=(), readStream(), swap(), and writeStream().

m_xScaleFactor

ossim_float64 ossimLasHdr::m_xScaleFactor

private

Definition at line 167 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getScaleFactorX(), operator=(), readStream(), swap(), and writeStream().

m_yOffset

ossim_float64 ossimLasHdr::m_yOffset

private

Definition at line 171 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getOffsetY(), operator=(), readStream(), swap(), and writeStream().

m_yScaleFactor

ossim_float64 ossimLasHdr::m_yScaleFactor

private

Definition at line 168 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getScaleFactorY(), operator=(), readStream(), swap(), and writeStream().

m_zOffset

ossim_float64 ossimLasHdr::m_zOffset

private

Definition at line 172 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getOffsetZ(), operator=(), readStream(), swap(), and writeStream().

m_zScaleFactor

ossim_float64 ossimLasHdr::m_zScaleFactor

private

Definition at line 169 of file ossimLasHdr.h.

Referenced by getKeywordlist(), getScaleFactorZ(), operator=(), readStream(), swap(), and writeStream().

---

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

• ossimLasHdr.h
• ossimLasHdr.cpp