COMPLEX

typedef struct tagCOMPLEX
{
   L_DOUBLE r;
   L_DOUBLE i;
}L_COMPLEX, L_FAR * LPCOMPLEX;

The COMPLEX structure contains a complex number representing a specific frequency component in Fourier Transform functions.

Member

Description

r

Real part of a complex number.

I

Imaginary part of a complex number.

Comments

This structure is used only by the Fourier Transform functions:

LBitmap::AllocFTArray

LBitmap::DFT

LBitmap::FFT

LBitmap::FreeFTArray

LBitmap::FTDisplay

LBitmap::FrqFilter

LBitmap::FrqFilterMask