This class creates a polygon-type Isis Blob named "Footprint". More...

#include <GisBlob.h>

Inheritance diagram for Isis::GisBlob:

Collaboration diagram for Isis::GisBlob:

Public Member Functions
	GisBlob ()
	Constructs an Isis polygon-type Blob named "Footprint.". More...

	GisBlob (Cube &cube)
	Constructs an Isis polygon-type Blob named "Footprint" and sets the well-known text string that defines the polygon by reading the given cube. More...

	~GisBlob ()
	Destroys the GisBlob object. More...

QString	polygon () const
	Accesses the well-known text string that defines the polygon. More...

void	setPolygon (const QString &wkt)
	Sets the polygon using the given well-known text string. More...

QString	Type () const
	Accessor method that returns a string containing the Blob type. More...

QString	Name () const
	Accessor method that returns a string containing the Blob name. More...

int	Size () const
	Accessor method that returns the number of bytes in the blob data. More...

PvlObject &	Label ()
	Accessor method that returns a PvlObject containing the Blob label. More...

void	Read (const QString &file)
	This method reads Pvl values from a specified file. More...

void	Read (const QString &file, const Pvl &pvlLabels)
	This method reads the given a file and labels. More...

virtual void	Read (const Pvl &pvl, std::istream &is)
	This method reads the Blob data from an open input file stream. More...

void	Write (const QString &file)
	Write the blob data out to a file. More...

void	Write (Pvl &pvl, std::fstream &stm, const QString &detachedFileName="")
	Write the blob data out to a Pvl object. More...

Protected Member Functions
void	Find (const Pvl &pvl)
	This method searches the given Pvl for the Blob by the Blob's type and name. More...

virtual void	ReadInit ()
	This virtual method for classes that inherit Blob. More...

virtual void	ReadData (std::istream &is)
	Read binary data from an input stream into the Blob object. More...

virtual void	WriteInit ()
	This virtual method for classes that inherit Blob. More...

virtual void	WriteData (std::fstream &os)
	Writes blob data to a stream. More...

Protected Attributes
PvlObject	p_blobPvl
	Pvl Blob object. More...

QString	p_blobName
	Name of the Blob object. More...

char *	p_buffer
	Buffer blob data is stored in. More...

BigInt	p_startByte
	Byte blob data starts at in buffer. More...

int	p_nbytes
	Size of blob data (in bytes) More...

QString	p_type
	Type of data stored in the buffer. More...

QString	p_detached
	Used for reading detached blobs. More...

QString	p_labelFile
	The file containing the labels. More...

Private Member Functions
QString	scrub (const char *rawbuf, int rbytes) const
	This method will scrub all zeros that prefix the given buffer and convert it to a string using the number of allocated bytes given. More...

Private Attributes
QString	m_wkt
	Well-known text string containing the polygon defintion for this GIS blob. More...

Detailed Description

This class creates a polygon-type Isis Blob named "Footprint".

It inherits from the Isis Blob class. This Blob may be read from a given cube or the polygon maybe set using a wkt polygon string.

Author: 2012-07-15 Kris Becker

History:

2012-07-15 Kris Becker - Original version.

2015-03-18 Jeannie Backer - Brought class files closer to ISIS coding standards.

2015-03-31 Jeannie Backer - Updated documentation.

2016-03-02 Ian Humphrey - Updated for coding standards compliance in preparation for adding this class to ISIS. Fixes #2398.

Definition at line 48 of file GisBlob.h.

Constructor & Destructor Documentation

Isis::GisBlob::GisBlob ( )

Constructs an Isis polygon-type Blob named "Footprint.".

Definition at line 38 of file GisBlob.cpp.

Isis::GisBlob::GisBlob ( Cube & cube )

Constructs an Isis polygon-type Blob named "Footprint" and sets the well-known text string that defines the polygon by reading the given cube.

Parameters

cube

Definition at line 48 of file GisBlob.cpp.

References m_wkt, Isis::Blob::p_buffer, Isis::Blob::p_nbytes, Isis::Cube::read(), and scrub().

Isis::GisBlob::~GisBlob ( )

Destroys the GisBlob object.

Definition at line 57 of file GisBlob.cpp.

Member Function Documentation

void Isis::Blob::Find ( const Pvl & pvl )

protectedinherited

This method searches the given Pvl for the Blob by the Blob's type and name.

If found, the start byte, number of bytes are read from the Pvl. Also, if a keyword label pointer is found, the filename for the detached blob is stored and the pointer is removed from the blob pvl.

Parameters

pvl	The Pvl to be searched

Definition at line 179 of file Blob.cpp.

References _FILEINFO_, Isis::PvlContainer::isNamed(), Isis::PvlObject::object(), Isis::PvlObject::objects(), and Isis::FileName::path().

PvlObject & Isis::Blob::Label ( )

inherited

Accessor method that returns a PvlObject containing the Blob label.

Returns: PvlObject The label of the blob.

Definition at line 167 of file Blob.cpp.

Referenced by Isis::SpicePosition::CacheLabel(), Isis::SpiceRotation::CacheLabel(), Isis::DawnVirCamera::getPointingTable(), Isis::SpicePosition::LoadCache(), and Isis::SpiceRotation::LoadCache().

QString Isis::Blob::Name ( ) const

inherited

Accessor method that returns a string containing the Blob name.

Returns: string The name of the blob.

Definition at line 149 of file Blob.cpp.

Referenced by Isis::Shape::isFootprintable(), Isis::Image::isFootprintable(), Isis::SpicePosition::LoadCache(), and Isis::Cube::write().

QString Isis::GisBlob::polygon ( ) const

Accesses the well-known text string that defines the polygon.

Returns: QString A well-known text string containing the polygon definition.

Definition at line 66 of file GisBlob.cpp.

References m_wkt.

Referenced by Isis::GisGeometry::fromCube().

void Isis::Blob::Read ( const QString & file )

inherited

This method reads Pvl values from a specified file.

Parameters

file	The filename to read from.

Exceptions

iException::Io	- Unable to open file
iException::Pvl	- Invalid label format

Definition at line 243 of file Blob.cpp.

References _FILEINFO_, and Isis::Pvl::read().

Referenced by Isis::History::History(), Isis::OriginalLabel::OriginalLabel(), Isis::History::Read(), Isis::Cube::read(), and Isis::Table::Table().

void Isis::Blob::Read	(	const QString &	file,
		const Pvl &	pvlLabels
	)

inherited

This method reads the given a file and labels.

Parameters

file	The filename to read from.
pvlLabels	A Pvl containing the label information.

Exceptions

iException::Io - Unable to open file

Definition at line 268 of file Blob.cpp.

References _FILEINFO_, and Isis::Message::FileOpen().

void Isis::Blob::Read	(	const Pvl &	pvl,
		std::istream &	istm
	)

virtualinherited

This method reads the Blob data from an open input file stream.

Parameters

pvl	A Pvl containing the label information.
istm	The input file stream containing the blob data to be read.

Exceptions

iException::Io - Unable to open file

Reimplemented in Isis::History.

Definition at line 303 of file Blob.cpp.

References _FILEINFO_, and Isis::Message::FileOpen().

void Isis::Blob::ReadData ( std::istream & stream )

protectedvirtualinherited

Read binary data from an input stream into the Blob object.

Parameters

stream The input stream to read from.

Exceptions

IException::Io - Error reading data from stream

Reimplemented in Isis::ImagePolygon, and Isis::Table.

Definition at line 340 of file Blob.cpp.

References _FILEINFO_.

void Isis::Blob::ReadInit ( )

protectedvirtualinherited

This virtual method for classes that inherit Blob.

It is not defined in the Blob class.

Reimplemented in Isis::Table.

Definition at line 330 of file Blob.cpp.

QString Isis::GisBlob::scrub	(	const char *	rawbuf,
		int	rbytes
	)		const

private

This method will scrub all zeros that prefix the given buffer and convert it to a string using the number of allocated bytes given.

Parameters

rawbuf	A pointer containing the raw buffer to be converted.
rbytes	The number of bytes to be read in.

Returns: QString A string converted from the given raw buffer.

Definition at line 98 of file GisBlob.cpp.

Referenced by GisBlob(), and setPolygon().

void Isis::GisBlob::setPolygon ( const QString & wkt )

Sets the polygon using the given well-known text string.

Parameters

wkt	A string containing the well-known text that defines a polygon.

Definition at line 76 of file GisBlob.cpp.

References m_wkt, Isis::Blob::p_buffer, Isis::Blob::p_nbytes, and scrub().

int Isis::Blob::Size ( ) const

inherited

Accessor method that returns the number of bytes in the blob data.

Returns: int Number of bytes in the blob data.

Definition at line 158 of file Blob.cpp.

QString Isis::Blob::Type ( ) const

inherited

Accessor method that returns a string containing the Blob type.

Returns: string Type of blob.

Definition at line 140 of file Blob.cpp.

Referenced by Isis::Shape::isFootprintable(), Isis::Image::isFootprintable(), and Isis::Cube::write().

void Isis::Blob::Write ( const QString & file )

inherited

Write the blob data out to a file.

Parameters

file	The filename to write to.

Exceptions

IException::Io	- Unable to open file
IException::Io	- Error preparing to write data to file
IException::Io	- Error creating file

Definition at line 369 of file Blob.cpp.

References _FILEINFO_, Isis::PvlObject::addObject(), Isis::PvlObject::findObject(), Isis::toString(), and Isis::Pvl::write().

Referenced by Isis::Cube::write().

void Isis::Blob::Write	(	Pvl &	pvl,
		std::fstream &	stm,
		const QString &	detachedFileName = `""`
	)

inherited

Write the blob data out to a Pvl object.

Parameters

pvl	The pvl object to update
stm	stream to write data to
detachedFileName	If the stream is detached from the labels give the name of the file

Definition at line 418 of file Blob.cpp.

References Isis::PvlObject::addObject(), Isis::PvlContainer::name(), Isis::PvlObject::object(), Isis::PvlObject::objects(), and Isis::toString().

void Isis::Blob::WriteData ( std::fstream & stream )

protectedvirtualinherited

Writes blob data to a stream.

Parameters

stream Output steam blob data will be written to

Exceptions

IException::Io - Error writing data to stream

Reimplemented in Isis::ImagePolygon, and Isis::Table.

Definition at line 502 of file Blob.cpp.

References _FILEINFO_.

void Isis::Blob::WriteInit ( )

protectedvirtualinherited

This virtual method for classes that inherit Blob.

It is not defined in the Blob class.

Reimplemented in Isis::ImagePolygon, Isis::Table, Isis::History, and Isis::OriginalLabel.

Definition at line 492 of file Blob.cpp.

Member Data Documentation

QString Isis::GisBlob::m_wkt

private

Well-known text string containing the polygon defintion for this GIS blob.

Definition at line 63 of file GisBlob.h.

Referenced by GisBlob(), polygon(), and setPolygon().

QString Isis::Blob::p_blobName

protectedinherited

Name of the Blob object.

Definition at line 95 of file Blob.h.

Referenced by Isis::Blob::Blob(), Isis::Table::operator+=(), Isis::Blob::operator=(), Isis::Table::ReadData(), and Isis::ImagePolygon::ReadData().

PvlObject Isis::Blob::p_blobPvl

protectedinherited

Pvl Blob object.

Definition at line 94 of file Blob.h.

Referenced by Isis::Blob::Blob(), Isis::Blob::operator=(), Isis::Table::ReadInit(), Isis::Table::Table(), and Isis::Table::WriteInit().

char* Isis::Blob::p_buffer

protectedinherited

Buffer blob data is stored in.

Definition at line 97 of file Blob.h.

Referenced by Isis::Blob::Blob(), GisBlob(), Isis::Blob::operator=(), Isis::History::ReturnHist(), Isis::OriginalLabel::ReturnLabels(), setPolygon(), Isis::History::WriteInit(), and Isis::OriginalLabel::WriteInit().

QString Isis::Blob::p_detached

protectedinherited

Used for reading detached blobs.

Definition at line 101 of file Blob.h.

Referenced by Isis::Blob::Blob(), and Isis::Blob::operator=().

QString Isis::Blob::p_labelFile

protectedinherited

The file containing the labels.

Definition at line 102 of file Blob.h.

Referenced by Isis::Blob::Blob(), and Isis::Blob::operator=().

int Isis::Blob::p_nbytes

protectedinherited

Size of blob data (in bytes)

Definition at line 99 of file Blob.h.

Referenced by Isis::Blob::Blob(), GisBlob(), Isis::Blob::operator=(), Isis::ImagePolygon::ReadData(), Isis::History::ReturnHist(), Isis::OriginalLabel::ReturnLabels(), setPolygon(), Isis::ImagePolygon::WriteData(), Isis::OriginalLabel::WriteInit(), Isis::History::WriteInit(), Isis::Table::WriteInit(), and Isis::ImagePolygon::WriteInit().

BigInt Isis::Blob::p_startByte

protectedinherited

Byte blob data starts at in buffer.

Definition at line 98 of file Blob.h.

Referenced by Isis::Blob::Blob(), Isis::Blob::operator=(), Isis::Table::ReadData(), and Isis::ImagePolygon::ReadData().

QString Isis::Blob::p_type

protectedinherited

Type of data stored in the buffer.

Definition at line 100 of file Blob.h.

Referenced by Isis::Blob::Blob(), Isis::Blob::operator=(), and Isis::ImagePolygon::ReadData().

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

src/base/objs/GisBlob/GisBlob.h
src/base/objs/GisBlob/GisBlob.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation