LerpPaths

Header:	AVL.h
Namespace:	avl

Linearly interpolates between two paths.

Syntax

void avl::LerpPaths
(
	const avl::Path& inPath0,
	const avl::Path& inPath1,
	const float inLambda,
	avl::Path& outPath
)

Parameters

Name	Type	Range	Default	Description
inPath0	const Path&
inPath1	const Path&			First input path
inLambda	const float	- -	0.5f	Interpolation between the input paths where 0.0 value is equal to inPath0 and 1.0 to inPath1
outPath	Path&			Output path

Examples

LerpPaths performed on red inPath0 and blue inPath1 with inLambda = 0,25. Green is the resulting outPath.

LerpPaths performed on red inPath0 and blue inPath1 with inLambda = -1,0. Green is the resulting outPath.

Remarks

Please note that:

interpolation begins at inPath0,
for positive inLambda values interpolation is performed in the direction of inPath1 while for negative - in the direction of a path which is the result of the following operation: (inPath0 - inPath1), in example a path consisting of inPath1 points mirrored by the corresponding inPath0 points.

Hence when inLambda = 0,0, outPath is equal to inPath0, while for inLambda = 1,0 it's the same as inPath1 and for inLambda = -1,0 - as (inPath0 - inPath1). Other inLambda values interpolate between the input paths and beyond.

Errors

List of possible exceptions:

Error type	Description
DomainError	Numbers of points in paths are not the same in LerpPaths.
DomainError	Open and closed paths on input in LerpPaths.