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LerpSegments

Header:	FIL.h
Namespace:	fil

Linearly interpolates between two segments.

Syntax

void fil::LerpSegments
(
	const fil::Segment2D& inSegment0,
	const fil::Segment2D& inSegment1,
	float inLambda,
	bool inIgnoreOrientation,
	fil::Segment2D& outSegment
)

Parameters

Name	Type	Range	Default	Description
inSegment0	const Segment2D&
inSegment1	const Segment2D&
inLambda	float	- -	0.5f	Interpolation between the input segments where 0.0 value is equal to inSegment0 and 1.0 to inSegment1
inIgnoreOrientation	bool
outSegment	Segment2D&

Examples

LerpSegments performed on red inSegment0 and blue inSegment1 with inLambda = 0,25. Green is the resulting outSegment.

LerpSegments performed on red inSegment0 and blue inSegment1 with inLambda = -1,0. Green is the resulting outSegment.

Remarks

Please note that:

interpolation begins at inSegment0,
for positive inLambda values interpolation is performed in the direction of inSegment1 while for negative - in the direction of a segment which is the result of the following operation: (inSegment0 - inSegment1), in example a segment consisting of inSegment1 points mirrored by the corresponding inSegment0 points.

Hence when inLambda = 0,0, outSegment is equal to inSegment0, while for inLambda = 1,0 it's the same as inSegment1 and for inLambda = -1,0 - as (inSegment0 - inSegment1). Other inLambda values interpolate between the input segments and beyond.