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LSST Data Management Base Package
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lsst::afw::image::pixel::variance_multiplies< T1 > Struct Template Reference

Calculate the variance when we multiply two Pixels. More...

#include <Pixel.h>

Public Member Functions

T1 operator() (T1 const &x, T1 const &y, T1 const &vx, T1 const &vy) const
 
T1 operator() (T1 const &, T1 const &y, T1 const &vx) const
 

Detailed Description

template<typename T1>
struct lsst::afw::image::pixel::variance_multiplies< T1 >

Calculate the variance when we multiply two Pixels.

Note
We provide a single-operand version for when the right-hand-side of an expression is a scalar, not a masked pixel,

Definition at line 369 of file Pixel.h.

Member Function Documentation

◆ operator()() [1/2]

template<typename T1>
T1 lsst::afw::image::pixel::variance_multiplies< T1 >::operator() ( T1 const & ,
T1 const & y,
T1 const & vx ) const
inline

Definition at line 376 of file Pixel.h.

376{ return vx * y * y; }
Calculate the variance when we multiply two Pixels.
Definition Pixel.h:369

◆ operator()() [2/2]

template<typename T1>
T1 lsst::afw::image::pixel::variance_multiplies< T1 >::operator() ( T1 const & x,
T1 const & y,
T1 const & vx,
T1 const & vy ) const
inline

Definition at line 370 of file Pixel.h.

370 {
371 T1 const x2 = x * x;
372 T1 const y2 = y * y;
373 return x2 * vy + y2 * vx;
374 }

The documentation for this struct was generated from the following file: