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kml_fft(f)_execute_dft_r2c

Execute the created FFT plan. However, kml_fft(f)_execute_dft_r2c can accept new input and output data rather than the plan data as parameters.

Interface Definition

C interface:

void kml_fft_execute_dft_r2c(const kml_fft_plan p, double *in, kml_fft_complex *out);

void kml_fftf_execute_dft_r2c(const kml_fftf_plan p, float *in, kml_fftf_complex *out);

Fortran interface:

CALL KML_FFT_EXECUTE_DFT_R2C(P, IN, OUT);

CALL KML_FFTF_EXECUTE_DFT_R2C(P, IN, OUT);

Parameters

Parameter

Data Type

Description

Input/Output

p
  • Double precision: const kml_fft_plan
  • Single precision: const kml_fftf_plan

FFT plan obtained by calling the plan function.

Input

in
  • Double precision: double*
  • Single precision: float*

Inputs the data to be transformed.

Input

out
  • Double precision: kml_fft_complex*
  • Single precision: kml_fftf_complex*

Outputs the data generated using FFT.

Output

Dependencies

C: "kfft.h"

Fortran: "kfft.f03"

Examples

See R2C Transforms.

Parent topic: FFT Execution Functions