GetFFT Namespace Reference

This modules contains routines to perform FFT on maps. More...

Classes
struct	FFTRMap
Functions
subroutine	FFTRMapAlloc (Rspace)
	Allocates the FFTRMap array given the map dimensions etc.
subroutine	FFTRMapFree (Rspace)
subroutine	FFTRMapCheckAlloc (Rspace)
subroutine	FFTRMapAllocAClone (Rspace, RspaceClone)
	Creates an empty clone of an RMap.
subroutine	FFTRMapCopy (Rspace, RspaceCopy)
	Generates a copy of a Map.
subroutine	FFTRMapfromKMap (Kspace, Rspace)
	Generates a Real Map given a Kspace map via inverse FFT.
subroutine	FFTKMapfromRMap (Rspace, Kspace)
	Generates a Kspace Map given a real space map via forward FFT.
subroutine	FFTPowerKMapfromRMap (Rspace, Kspace)
	Generates a Kspace 2-D Power Spectrum Map given a real space map via forward FFT.
subroutine	FFTPowerDivideByPixelWindow (Kpower)
	Divides the 2-D Power Spectrum Map by the pixel window function.
real(dp)	sinc (x)
subroutine	FFTCrossPowerKMapfromRMap (Rspace1, Rspace2, Kspace1)
	Generates a Kspace 2-D Cross Power Spectrum Map given two real space maps via forward FFT.
subroutine	FFTRMapWrite (rspace, outname, overwrite)
subroutine	FFTRMapRead (rspace, outname)

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Detailed Description

This modules contains routines to perform FFT on maps.

Author:

Sudeep Das and Amir Hajian, Princeton University

Version:

Time-stamp: <2009-12-01 17:05:55 sudeep>

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Function Documentation

subroutine GetFFT::FFTCrossPowerKMapfromRMap	(	type(FFTRMap)	Rspace1,
		type(FFTRMap)	Rspace2,
		type(KMap)	kspace1
	)

Generates a Kspace 2-D Cross Power Spectrum Map given two real space maps via forward FFT.

subroutine GetFFT::FFTKMapfromRMap	(	type(FFTRMap)	Rspace,
		type(KMap)	kspace
	)

Generates a Kspace Map given a real space map via forward FFT.

subroutine GetFFT::FFTPowerDivideByPixelWindow

(

type(KMap)

kPower

)

Divides the 2-D Power Spectrum Map by the pixel window function.

subroutine GetFFT::FFTPowerKMapfromRMap	(	type(FFTRMap)	Rspace,
		type(KMap)	kspace
	)

Generates a Kspace 2-D Power Spectrum Map given a real space map via forward FFT.

subroutine GetFFT::FFTRMapAlloc

(

type(FFTRMap)

Rspace

)

Allocates the FFTRMap array given the map dimensions etc.

subroutine GetFFT::FFTRMapAllocAClone	(	type(FFTRMap)	Rspace,
		type(FFTRMap)	RspaceClone
	)

Creates an empty clone of an RMap.

subroutine GetFFT::FFTRMapCheckAlloc

(

type(FFTRMap)

Rspace

)

subroutine GetFFT::FFTRMapCopy	(	type(FFTRMap)	Rspace,
		type(FFTRMap)	RspaceCopy
	)

Generates a copy of a Map.

subroutine GetFFT::FFTRMapFree

(

type(FFTRMap)

Rspace

)

subroutine GetFFT::FFTRMapfromKMap	(	type(KMap)	kspace,
		type(FFTRMap)	Rspace
	)

Generates a Real Map given a Kspace map via inverse FFT.

subroutine GetFFT::FFTRMapRead	(	type(FFTRmap)	rspace,
		character (len=*)	outname
	)

subroutine GetFFT::FFTRMapWrite	(	type(FFTRmap)	rspace,
		character (len=*)	outname,
		logical(LGT),intent(in),optional	overwrite
	)

real(dp) GetFFT::sinc

(

real(dp),intent(in)

x

)

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