FullPhysics::FdForwardModel Class Reference

This a forward model class that calcualtes jacobians using the finite difference method. More...

#include <fd_forward_model.h>

Inheritance diagram for FullPhysics::FdForwardModel:

Collaboration diagram for FullPhysics::FdForwardModel:

Public Member Functions
	FdForwardModel (const boost::shared_ptr< ForwardModel > &Real_Forward_model, const boost::shared_ptr< StateVector > &Sv, const blitz::Array< double, 1 > &Perturbation)
	Constructor. More...
virtual	~FdForwardModel ()
virtual int	num_channels () const
	The number of spectral channels associated with forward model. More...
virtual void	print (std::ostream &Os) const
std::string	print_to_string () const
	Print to string. More...
virtual Spectrum	radiance (int Spec_index, bool Skip_jacobian=false) const
	Spectrum for the given spectral band. More...
virtual Spectrum	radiance_all (bool skip_jacobian=false) const
	Radiance data all stacked together as one long spectrum (so band 0, followed by band 1, etc.). More...
virtual void	setup_grid ()=0
	This notifies the forward model that it should setup the grid. More...
virtual const SpectralDomain	spectral_domain (int Spec_index) const
	Spectral domain for the given spectral band. More...
virtual SpectralDomain::TypePreference	spectral_domain_type_preference () const =0
	Type preference for spectral domain. More...
virtual const boost::optional< blitz::Range >	stacked_pixel_range (int channel_index) const
	The range of indicies that corresponds to a particular band in the stacked radiances. More...
virtual boost::shared_ptr< StateVector >	state_vector () const

Detailed Description

This a forward model class that calcualtes jacobians using the finite difference method.

This will approach is certainly much slower and is meant for testing analytic jacobains and for models that do not include analytic jacobians.

Additionally this way of doing finitie difference is wasteful because some state vector elements might not require a full radiative transfer call.

Definition at line 18 of file fd_forward_model.h.

Constructor & Destructor Documentation

FdForwardModel()

FdForwardModel::FdForwardModel	(	const boost::shared_ptr< ForwardModel > &	Real_Forward_model,
		const boost::shared_ptr< StateVector > &	Sv,
		const blitz::Array< double, 1 > &	Perturbation
	)

Constructor.

Definition at line 11 of file fd_forward_model.cc.

~FdForwardModel()

virtual FullPhysics::FdForwardModel::~FdForwardModel ( )

inlinevirtual

Definition at line 23 of file fd_forward_model.h.

Member Function Documentation

num_channels()

virtual int FullPhysics::FdForwardModel::num_channels ( ) const

inlinevirtual

The number of spectral channels associated with forward model.

Implements FullPhysics::ForwardModel.

Definition at line 28 of file fd_forward_model.h.

print()

virtual void FullPhysics::FdForwardModel::print ( std::ostream &  Os ) const

inlinevirtual

Reimplemented from FullPhysics::ForwardModel.

Definition at line 26 of file fd_forward_model.h.

print_to_string()

std::string FullPhysics::Printable< ForwardModel >::print_to_string ( ) const

inlineinherited

Print to string.

This is primarily useful for SWIG wrappers to this class, e.g. a to_s method in ruby.

Definition at line 31 of file printable.h.

radiance()

Spectrum FdForwardModel::radiance ( int  channel_index, bool  skip_jacobian = false  ) const

virtual

Spectrum for the given spectral band.

Note that this may be empty.

Parameters

channel_index	Band to give value for
skip_jacobian	If true, don't do the Jacobian calculation. Often this is significantly faster to calculate.

Returns

The set of radiances, possibly empty.

Implements FullPhysics::ForwardModel.

Definition at line 20 of file fd_forward_model.cc.

radiance_all()

Spectrum StackedRadianceMixin::radiance_all ( bool  skip_jacobian = false ) const

virtualinherited

Radiance data all stacked together as one long spectrum (so band 0, followed by band 1, etc.).

Definition at line 25 of file stacked_radiance_mixin.cc.

setup_grid()

virtual void FullPhysics::ForwardModel::setup_grid ( )

pure virtualinherited

This notifies the forward model that it should setup the grid.

Implemented in FullPhysics::StandardForwardModel.

spectral_domain()

virtual const SpectralDomain FullPhysics::FdForwardModel::spectral_domain ( int  channel_index ) const

inlinevirtual

Spectral domain for the given spectral band.

Note that this may be empty.

Implements FullPhysics::ForwardModel.

Definition at line 30 of file fd_forward_model.h.

spectral_domain_type_preference()

virtual SpectralDomain::TypePreference FullPhysics::ForwardModel::spectral_domain_type_preference ( ) const

pure virtualinherited

Type preference for spectral domain.

This may seem an odd thing to have a function for, but this is needed by ForwardModelOutput.

Implemented in FullPhysics::StandardForwardModel.

stacked_pixel_range()

const boost::optional< Range > StackedRadianceMixin::stacked_pixel_range ( int  channel_index ) const

virtualinherited

The range of indicies that corresponds to a particular band in the stacked radiances.

The range may well be empty if a band is not used at all. This is a useful edge case, but unfortunately blitz::Range does not support empty ranges. As a simple work around, we use the boost::optional class to return a value only if the range is not empty.

Definition at line 6 of file stacked_radiance_mixin.cc.

state_vector()

virtual boost::shared_ptr<StateVector> FullPhysics::FdForwardModel::state_vector ( ) const

inlinevirtual

Definition at line 24 of file fd_forward_model.h.

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

• Implementation/fd_forward_model.h
• Implementation/fd_forward_model.cc