Developer Reference

  • 2020
  • 10/21/2020
  • Public Content
Contents

CartToPolar

Converts the elements of a complex vector to polar coordinate form.

Syntax

IppStatus ippsCartToPolar_32f(const Ipp32f*
pSrcRe
, const Ipp32f*
pSrcIm
, Ipp32f*
pDstMagn
, Ipp32f*
pDstPhase
, int
len
);
IppStatus ippsCartToPolar_64f(const Ipp64f*
pSrcRe
, const Ipp64f*
pSrcIm
, Ipp64f*
pDstMagn
, Ipp64f*
pDstPhase
, int
len
);
IppStatus ippsCartToPolar_32fc(const Ipp32fc*
pSrc
, Ipp32f*
pDstMagn
, Ipp32f*
pDstPhase
, int
len
);
IppStatus ippsCartToPolar_64fc(const Ipp64fc*
pSrc
, Ipp64f*
pDstMagn
, Ipp64f*
pDstPhase
, int
len
);
IppStatus ippsCartToPolar_16sc_Sfs(const Ipp16sc*
pSrc
, Ipp16s*
pDstMagn
, Ipp16s*
pDstPhase
, int
len
, int
magnScaleFactor
, int
phaseScaleFactor
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
pSrc
Pointer to the source vector.
pSrcRe
Pointer to the source vector which stores the real components of Cartesian X,Y pairs.
pSrcIm
Pointer to the source vector which stores the imaginary components of Cartesian X,Y pairs.
pDstMagn
Pointer to the vector which stores the magnitude (radius) component of the elements of the vector
pSrc
.
pDstPhase
Pointer to the vector which stores the phase (angle) component of the elements of the vector
pSrc
in radians. Phase values are in the range (-π, π].
len
Number of elements in the vector.
magnScaleFactor
Integer scale factor for the magnitude component, refer to Integer Scaling.
phaseScaleFactor
Integer scale factor for the phase component, refer to Integer Scaling.
Description
This function converts the elements of a complex input vector
pSrc
or the complex input vector whose real and imaginary components are specified in the vectors
pSrcRe
and
pSrcIm
, respectively, to polar coordinate form, and stores the magnitude (radius) component of each element in the vector
pDstMagn
and the phase (angle) component of each element in the vector
pDstPhase
.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when at least one of the specified pointers is
NULL
.
ippStsSizeErr
Indicates an error when
len
is less than or equal to zero.

Example



    
/******************************************************************************* * Copyright 2015-2020 Intel Corporation. * * This software and the related documents are Intel copyrighted materials, and * your use of them is governed by the express license under which they were * provided to you (License). Unless the License provides otherwise, you may not * use, modify, copy, publish, distribute, disclose or transmit this software or * the related documents without Intel's prior written permission. * * This software and the related documents are provided as is, with no express * or implied warranties, other than those that are expressly stated in the * License. *******************************************************************************/ #include <stdio.h> #include "ipp.h" #include <math.h> /* Next two defines are created to simplify code reading and understanding */ #define EXIT_MAIN exitLine: /* Label for Exit */ #define check_sts(st) if((st) != ippStsNoErr) goto exitLine; /* Go to Exit if Intel(R) Integrated Performance Primitives (Intel(R) IPP) function returned status different from ippStsNoErr */ /* Results of ippMalloc() are not validated because Intel(R) IPP functions perform bad arguments check and will return an appropriate status */ int main() { int i; IppStatus status; Ipp64f cart[6], magn[4], phase[4]; for (i = 0; i<6; ++i) cart[i] = sin(IPP_2PI * i / 8); printf("Source:\n"); printf("\nre= "); for (i = 0; i < 4; i++) printf("%f ", cart[i]); printf("\nim= "); for (i = 2; i < 6; i++) printf("%f ", cart[i]); check_sts(status = ippsCartToPolar_64f(cart, cart + 2, magn, phase, 4)); printf("\nResult:"); printf("\nmagn= "); for (i = 0; i < 4; i++) printf("%f ", magn[i]); printf("\nphase= "); for (i = 0; i < 4; i++) printf("%f ", phase[i]); EXIT_MAIN printf("\nExit status %d (%s)\n", (int)status, ippGetStatusString(status)); return (int)status; }

Product and Performance Information

1

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Notice revision #20110804