impeller::Sigma Struct Reference

In filters that use Gaussian distributions, "sigma" is a size of one standard deviation in terms of the local space pixel grid of the filter input. In other words, this determines how wide the distribution stretches. More...

#include <sigma.h>

Public Member Functions
constexpr	Sigma ()=default
constexpr	Sigma (Scalar p_sigma)
	operator Radius () const

Public Attributes
Scalar	sigma = 0.0

Detailed Description

In filters that use Gaussian distributions, "sigma" is a size of one standard deviation in terms of the local space pixel grid of the filter input. In other words, this determines how wide the distribution stretches.

Definition at line 32 of file sigma.h.

Constructor & Destructor Documentation

Sigma() [1/2]

constexpr impeller::Sigma::Sigma ( )

constexprdefault

Sigma() [2/2]

constexpr impeller::Sigma::Sigma ( Scalar  p_sigma )

inlineexplicitconstexpr

Definition at line 37 of file sigma.h.

: sigma(p_sigma) {}

Member Function Documentation

operator Radius()

impeller::Sigma::operator Radius

(

)

const

Definition at line 11 of file sigma.cc.

                             {
  return Radius{sigma > 0.5f ? (sigma - 0.5f) * kKernelRadiusPerSigma : 0.0f};
}

Member Data Documentation

sigma

Scalar impeller::Sigma::sigma = 0.0

Definition at line 33 of file sigma.h.

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

• impeller/geometry/sigma.h
• impeller/geometry/sigma.cc