EBGeometry::ExpMaxOp< T > Struct Template Reference

Exponential smooth maximum for blending two signed-distance values. More...

#include <EBGeometry_Blend.hpp>

Public Member Functions
T	operator() (const T &a, const T &b, const T &s) const noexcept
	Evaluate the exponential smooth maximum.

Detailed Description

template<class T>
struct EBGeometry::ExpMaxOp< T >

Exponential smooth maximum for blending two signed-distance values.

Evaluates s log(exp(a/s) + exp(b/s)), the counterpart of ExpMinOp for intersections and differences: approximates max(a, b) and approaches it as s → 0. Computed as max(a, b) + s log1p(exp(-|a - b| / s)), which cannot overflow. A trivially copyable function object.

Template Parameters

T	Floating-point precision.

Member Function Documentation

operator()()

template<class T >

T EBGeometry::ExpMaxOp< T >::operator() ( const T &  a, const T &  b, const T &  s  ) const

inlinenoexcept

Evaluate the exponential smooth maximum.

Parameters

[in]	a	First value.
[in]	b	Second value.
[in]	s	Smoothing length (must be > 0).

Returns

Exponentially blended approximation of max(a, b).

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

• Source/EBGeometry_Blend.hpp