w3ft00.f File Reference

Data field tranformation subroutine. More...

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Functions/Subroutines
subroutine	w3ft00 (fld, b, ia, ja, ib, jb, cip, cjp, fipb, fjpb, sc, arg, lin)
	Transforms data contained in a grid array by translation, rotation about a common point and dilatation to a new grid array.

Detailed Description

Data field tranformation subroutine.

Author

J. McDonell

Date

1974-09-01

Definition in file w3ft00.f.

Function/Subroutine Documentation

w3ft00()

subroutine w3ft00	(	real, dimension(ia,ja)	fld,
		real, dimension(ib,jb)	b,
			ia,
			ja,
			ib,
			jb,
			cip,
			cjp,
			fipb,
			fjpb,
			sc,
			arg,
			lin
	)

Transforms data contained in a grid array by translation, rotation about a common point and dilatation to a new grid array.

Program History Log:

Date	Programmer	Comments
1974-09-01	J. McDonell	Initial.
1984-06-27	Ralph Jones	Change to ibm vs fortran.

Parameters

[in]	IA	(Integer) i-dimension of the input array fa
[in]	JA	(Integer) j-dimension of the input array fa
[in]	IB	(Integer) i-dimension of the output array fb
[in]	JB	(Integer) j-dimension of the output array fb
[in]	SC	(Real) Scale change (dilation) expressed as a ratio of the transformed to the origional field.
[in]	ARG	(Real) Degree measure of the angle required to rotate the j-row of the origional grid into coincidence with the new grid. (+ counter- clockwise, - clockwise)
[in]	LIN	(Integer) Interpolation method switch .eq. 1 bilinear interpolation .ne. 1 biquadratic interpolation
	FLD
	B
	CIP
	CJP
	FIPB
	FJPB

Remarks

In general 'fa' and 'fb' cannot be equivalenced although there are situations in which it would be safe to do so. care should be taken that all of the new grid points lie within the origional grid, no error checks are made.

Author

J. McDonell

Date

1974-09-01

Definition at line 39 of file w3ft00.f.