Transformation object that converts an OPeNDAP DataDDS to a GeoTiff file. More...

#include <FONgTransform.h>

Inheritance diagram for FONgTransform:

Collaboration diagram for FONgTransform:

Public Types
enum	no_data_type_t { none , negative , positive }

Public Member Functions
virtual double	bottom ()

virtual void	dump (std::ostream &strm) const =0
	dump the contents of this object to the specified ostream

virtual void	dump (ostream &) const

	FONgTransform (libdap::DDS *dds, libdap::ConstraintEvaluator &evaluator, const string &localfile)
	Constructor that creates transformation object from the specified DataDDS object to the specified file.

virtual double *	geo_transform ()
	Build the geotransform array needed by GDAL.

void	geo_transform_set (bool state)

virtual int	height ()

bool	is_geo_transform_set ()

virtual double	left ()

double	no_data ()

no_data_type_t	no_data_type ()

int	num_bands ()

int	num_var ()

void	push_var (FONgGrid *v)

virtual double	right ()

virtual void	set_bottom (int top)

virtual void	set_height (int height)

virtual void	set_left (int left)

void	set_no_data (const string &nd)

void	set_no_data_type (no_data_type_t t)

void	set_num_bands (int n)

virtual void	set_right (int left)

virtual void	set_top (int top)

virtual void	set_width (int width)

virtual double	top ()

virtual void	transform_to_geotiff ()
	Transforms the variables of the DataDDS to a GeoTiff file.

virtual void	transform_to_jpeg2000 ()
	Transforms the variables of the DataDDS to a JPEG2000 file.

FONgGrid *	var (int i)

virtual int	width ()

virtual	~FONgTransform ()
	Destructor.

Detailed Description

Transformation object that converts an OPeNDAP DataDDS to a GeoTiff file.

This class transforms variables in a DataDDS object to a GeoTiff file. For more information on the transformation please refer to the OpeNDAP documents wiki.

Definition at line 41 of file FONgTransform.h.

Member Enumeration Documentation

◆ no_data_type_t

enum FONgTransform::no_data_type_t

Definition at line 44 of file FONgTransform.h.

Constructor & Destructor Documentation

◆ FONgTransform()

FONgTransform::FONgTransform	(	libdap::DDS *	dds,
		libdap::ConstraintEvaluator &	evaluator,
		const string &	localfile )

Constructor that creates transformation object from the specified DataDDS object to the specified file.

Parameters

dds	DataDDS object that contains the data structure, attributes and data
dhi	The data interface containing information about the current request
localfile	GeoTiff to create and write the information to

Exceptions

BESInternalError

Definition at line 64 of file FONgTransform.cc.

◆ ~FONgTransform()

FONgTransform::~FONgTransform ( )

virtual

Destructor.

Cleans up any temporary data created during the transformation

Definition at line 78 of file FONgTransform.cc.

Member Function Documentation

◆ bottom()

virtual double FONgTransform::bottom ( )

inlinevirtual

Definition at line 117 of file FONgTransform.h.

◆ dump() [1/2]

virtual void BESObj::dump ( std::ostream & strm ) const

pure virtualinherited

dump the contents of this object to the specified ostream

This method is implemented by all derived classes to dump their contents, in other words, any state they might have, private variables, etc...

The inline function below can be used to dump the contents of an OPeNDAPObj object. For example, the object Animal is derived from BESObj. A user could do the following:

Animal *a = new dog( "Sparky" ) ; cout << a << endl ;

And the dump method for dog could display the name passed into the constructor, the (this) pointer of the object, etc...

Parameters

strm	C++ i/o stream to dump the object to

◆ dump() [2/2]

virtual void FONgTransform::dump ( ostream & ) const

inlinevirtual

Definition at line 122 of file FONgTransform.h.

◆ geo_transform()

double * FONgTransform::geo_transform ( )

virtual

Build the geotransform array needed by GDAL.

This code uses values gleaned by FONgBaseType:extract_coordinates() to build up the six value array of transform parameters that GDAL needs to set the geographic transform.

Note: This method returns a pointer to a class field; don't delete it.

Returns: A pointer to the six element array of parameters (doubles)

Definition at line 199 of file FONgTransform.cc.

◆ geo_transform_set()

void FONgTransform::geo_transform_set ( bool state )

inline

Definition at line 83 of file FONgTransform.h.

◆ height()

virtual int FONgTransform::height ( )

inlinevirtual

Definition at line 104 of file FONgTransform.h.

◆ is_geo_transform_set()

bool FONgTransform::is_geo_transform_set ( )

inline

Definition at line 82 of file FONgTransform.h.

◆ left()

virtual double FONgTransform::left ( )

inlinevirtual

Definition at line 111 of file FONgTransform.h.

◆ no_data()

double FONgTransform::no_data ( )

inline

Definition at line 85 of file FONgTransform.h.

◆ no_data_type()

no_data_type_t FONgTransform::no_data_type ( )

inline

Definition at line 89 of file FONgTransform.h.

◆ num_bands()

int FONgTransform::num_bands ( )

inline

Definition at line 91 of file FONgTransform.h.

◆ num_var()

int FONgTransform::num_var ( )

inline

Definition at line 95 of file FONgTransform.h.

◆ push_var()

void FONgTransform::push_var ( FONgGrid * v )

inline

Definition at line 94 of file FONgTransform.h.

◆ right()

virtual double FONgTransform::right ( )

inlinevirtual

Definition at line 118 of file FONgTransform.h.

◆ set_bottom()

virtual void FONgTransform::set_bottom ( int top )

inlinevirtual

Definition at line 114 of file FONgTransform.h.

◆ set_height()

virtual void FONgTransform::set_height ( int height )

inlinevirtual

Definition at line 101 of file FONgTransform.h.

◆ set_left()

virtual void FONgTransform::set_left ( int left )

inlinevirtual

Definition at line 108 of file FONgTransform.h.

◆ set_no_data()

void FONgTransform::set_no_data ( const string & nd )

inline

Definition at line 86 of file FONgTransform.h.

◆ set_no_data_type()

void FONgTransform::set_no_data_type ( no_data_type_t t )

inline

Definition at line 88 of file FONgTransform.h.

◆ set_num_bands()

void FONgTransform::set_num_bands ( int n )

inline

Definition at line 92 of file FONgTransform.h.

◆ set_right()

virtual void FONgTransform::set_right ( int left )

inlinevirtual

Definition at line 115 of file FONgTransform.h.

◆ set_top()

virtual void FONgTransform::set_top ( int top )

inlinevirtual

Definition at line 107 of file FONgTransform.h.

◆ set_width()

virtual void FONgTransform::set_width ( int width )

inlinevirtual

Definition at line 100 of file FONgTransform.h.

◆ top()

virtual double FONgTransform::top ( )

inlinevirtual

Definition at line 110 of file FONgTransform.h.

◆ transform_to_geotiff()

void FONgTransform::transform_to_geotiff ( )

virtual

Transforms the variables of the DataDDS to a GeoTiff file.

Scan the DDS of the dataset and find the Grids that have been projected. Try to render their content as a GeoTiff. The result is a N-band GeoTiff file.

Definition at line 318 of file FONgTransform.cc.

◆ transform_to_jpeg2000()

void FONgTransform::transform_to_jpeg2000 ( )

virtual

Transforms the variables of the DataDDS to a JPEG2000 file.

Scan the DDS of the dataset and find the Grids that have been projected. Try to render their content as a JPEG2000. The result is a N-band JPEG2000 file.

Note: This method is a copy of the transform_to_geotiff() method and most of the code here could be factored out. However, the real utility of this method will be in its ability to write GML for a GMLJP2 response... 12/14/12; Since the available GMLJP2 drivers for GDAL only support making files using the CreateCopy() mathod, we make a MEM dataset, load it with data and then use that to make GMLJP2 file.

Definition at line 490 of file FONgTransform.cc.

◆ var()

FONgGrid * FONgTransform::var ( int i )

inline

Definition at line 97 of file FONgTransform.h.

◆ width()

virtual int FONgTransform::width ( )

inlinevirtual

Definition at line 103 of file FONgTransform.h.

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

Public Types

Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ no_data_type_t

Constructor & Destructor Documentation

◆ FONgTransform()

◆ ~FONgTransform()

Member Function Documentation

◆ bottom()

◆ dump() [1/2]

◆ dump() [2/2]

◆ geo_transform()

◆ geo_transform_set()

◆ height()

◆ is_geo_transform_set()

◆ left()

◆ no_data()

◆ no_data_type()

◆ num_bands()

◆ num_var()

◆ push_var()

◆ right()

◆ set_bottom()

◆ set_height()

◆ set_left()

◆ set_no_data()

◆ set_no_data_type()

◆ set_num_bands()

◆ set_right()

◆ set_top()

◆ set_width()

◆ top()

◆ transform_to_geotiff()

◆ transform_to_jpeg2000()

◆ var()

◆ width()