code::DataRemapper< GridType > Class Template Reference

List of all members.

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Detailed Description

template<class GridType>
class code::DataRemapper< GridType >

This class maps data in an input grid into the given output grid.

The remapper ought to be reused whenever you have commonly occuring grid-locations and spacings, as it caches previous computations.

Author:

Lakshman

Version:

Id

code_DataRemapper.h,v 1.11 2012/04/30 19:31:06 Valliappa.Lakshmanan Exp

Public Member Functions
	DataRemapper (bool interpolate=true, bool assign_points_outside_grid_to_unavailable=true)
	Interpolation is done using a Cressman interpolation method (inverse-square-distance) if interpolate is turned on.
void	remap (const GridType &input, GridType &output)
	Remaps the data in the input grid onto the output grid.
void	prune (const std::vector< GridType > &outputs)
	Prunes the internal lookup tables and keeps only the provided output grid dimensions.
Static Public Member Functions
static std::string	getGridIdentification (const GridType &g)
	returns a grid identification string which is unique for all cartesian grids at the same geographic location and with the same grid spacing.
static std::string	getGridIdentification (const Location &g)
static std::string	getGridIdentification (const Displacement &g)
static std::string	getGridIdentification (const Angle &g)

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Constructor & Destructor Documentation

template<class GridType>

code::DataRemapper< GridType >::DataRemapper	(	bool	interpolate = true,
		bool	assign_points_outside_grid_to_unavailable = true
	)

Interpolation is done using a Cressman interpolation method (inverse-square-distance) if interpolate is turned on.

the second flag decides whether to set points outside this grid to DataUnavailable, or to simply leave those pixels alone.

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Member Function Documentation

template<class GridType>

static std::string code::DataRemapper< GridType >::getGridIdentification

(

const Angle &

g

)

[static]

template<class GridType>

static std::string code::DataRemapper< GridType >::getGridIdentification

(

const Displacement &

g

)

[static]

template<class GridType>

static std::string code::DataRemapper< GridType >::getGridIdentification

(

const Location &

g

)

[static]

template<class GridType>

static std::string code::DataRemapper< GridType >::getGridIdentification

(

const GridType &

g

)

[static]

returns a grid identification string which is unique for all cartesian grids at the same geographic location and with the same grid spacing.

template<class GridType>

void code::DataRemapper< GridType >::prune

(

const std::vector< GridType > &

outputs

)

Prunes the internal lookup tables and keeps only the provided output grid dimensions.

template<class GridType>

void code::DataRemapper< GridType >::remap	(	const GridType &	input,
		GridType &	output
	)

Remaps the data in the input grid onto the output grid.

The output grid should be sized and located (space-time-ref, spacing, etc.) appropriately.

If the assignEverything flag was set in the constructor, every pixel of the output grid receives a value, which will be Constants::MISSING_DATA for points outside the input grid. Otherwise, only points inside the input grid will be transferred. The remaining points of output grid remain unassigned.

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