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ProfileZeroCrossings

Header:	FIL.h
Namespace:	fil

Finds the points of a profile at which the profile intersects the x-axis.

Syntax

void fil::ProfileZeroCrossings
(
	const fil::Profile& inProfile,
	ftl::Optional<const fil::Range&> inRange,
	ftl::Array<float>& outZeroCrossings
)

Parameters

Name	Type	Default	Description
inProfile	const Profile&		Input profile
inRange	Optional<const Range&>	NIL
outZeroCrossings	Array<float>&		X coordinates of the locations where the profile crosses the y=0 axis

Description

The operation assumes linear interpolation between the profile values and finds precise locations at which the profile crosses the horizontal \(y = 0\) axis. For the constant profile sections of value 0 only the integer coordinates of the sampling points in the section are returned.

Examples


inProfile = {-1.0,3.0,0.0,0.0,0.0}	outZeroCrossings = {0.25, 2.0, 3.0, 4.0}

Errors

List of possible exceptions:

Error type	Description
DomainError	Range exceeds the input profile in ProfileZeroCrossings.