Horus C++ Reference

Function Documentation

HxImageRep L_HXIMAGEREP HxAtan2

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Arc tangent (use first and second pixel dimension).

The function computes the arc tangent (see Pixels) of all pixels in the input image via a unary pixel operation (see Images).

Implementation specifics : The pixel functor : HxUpoAtan2. The image functor instantiator : HxInstantiatorAtan2.

00015 {
00016     HxString fname("HxAtan2");
00017 
00018     if (im.isNull())
00019     {
00020         HxGlobalError::instance()->reportError(fname, im.name(), "null image", HxGlobalError::HX_GE_INVALID);
00021         return HxImageRep();
00022     }
00023 
00024     if (im.signature().pixelDimensionality() != 2)
00025     {
00026         HxGlobalError::instance()->reportError(fname, "atan2 is only defined on two dimensional pixel values", HxGlobalError::HX_GE_INVALID);
00027         return HxImageRep();
00028     }
00029 
00030     return im.unaryPixOp("atan2");
00031 }

Generated on Tue Feb 3 14:18:45 2004 for C++Reference by

Functions
HxImageRep L_HXIMAGEREP	HxAtan2 (HxImageRep im)
	Arc tangent (use first and second pixel dimension). More...

HxAtan2.h File Reference

Functions

Detailed Description

Function Documentation