Back to FabImage Studio website

You are here: Start » Filter Reference » Geometry 2D » Geometry 2D Interpolations » LerpAngles

LerpAngles

Advanced

Module: FoundationLite

Linearly interpolates between two angles in the direction of minimum turn.

Name Type Description
Input value inAngle0 Real
Input value inAngle1 Real
Input value inRotationDirection RotationDirection* Clockwise, counter-clockwise or auto
Input value inAngleRange AngleRange
Input value inLambda Real Interpolation between the input angles where 0.0 value is equal to inAngle0 and 1.0 to inAngle1
Input value inInverse Bool
Output value outAngle Real

Examples

LerpAngles performed on red inAngle0 = 15 and blue inAngle1 = 135 with inLambda = 0,25 and inAngleRange = 0-360. Green is the resulting outAngle.

LerpAngles performed on red inAngle0 = 15 and blue inAngle1 = 135 with inLambda = -1,0 and inAngleRange = 0-360. Green is the resulting outAngle.

Remarks

Please note that:
  • interpolation begins at inAngle0,
  • for positive inLambda values interpolation is performed in the direction given in the inRotationDirection parameter while for negative - in the inverted direction.
Hence when inLambda = 0,0, outAngle is equal to inAngle0, while for inLambda = 1,0 it's the same as inAngle1 and for inLambda = -1,0 - as (inAngle0 - inAngle1). Other inLambda values interpolate between the input angles and beyond.

Complexity Level

This filter is available on Advanced Complexity Level.