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Gwyddion Data Processing Library Reference Manual | ![]() |
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simplefftsimplefft — Simple FFT algorithm |
void gwy_fft_hum (GwyTransformDirection dir, const gdouble *re_in, const gdouble *im_in, gdouble *re_out, gdouble *im_out, gint n); void gwy_fft_window (gdouble *data, gint n, GwyWindowingType windowing);
void gwy_fft_hum (GwyTransformDirection dir, const gdouble *re_in, const gdouble *im_in, gdouble *re_out, gdouble *im_out, gint n);
Performs FST algorithm.
dir : | Transformation direction. |
re_in : | Real part of input data. |
im_in : | Imaginary part of input data. |
re_out : | Real part of output data. |
im_out : | Imaginary part of output data. |
n : | Number of data points. |
void gwy_fft_window (gdouble *data, gint n, GwyWindowingType windowing);
Multiplies data by given window.
data : | Data values. |
n : | Number of data values. |
windowing : | Method used for windowing. |
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