Start » Filter Reference » Geometry 2D » Geometry 2D Angle Metrics » AngleBetweenVectors
Basic| Module: | FoundationLite |
|---|
Measures the angle between two vectors.
| Name | Type | Description | |
|---|---|---|---|
 |
inVector1 | Vector2D | Start vector |
|
inVector2 | Vector2D | Target vector |
|
inRotationDirection | RotationDirection* | Clockwise, counter-clockwise or automatic (by smaller angle) |
 |
outAbsoluteAngle | Real | Angle value used for measurements <0; 360> |
|
outDirectedAngle | Real | Angle value used for clockwise transformations <-360; 360> |
Description
Note that because of inaccuracies of floating-point arithmetic, some geometric operations (including this one) may lead to unpredictable results for degenerated cases. In this filter such a case occurs when a zero vector is given on input.
Examples
 |
AngleBetweenVectors performed on two vectors: inVector1 DeltaX = 10, DeltaY = 10, inVector2 DeltaX = -5, DeltaY = 5, inRotationDirection = CounterClockwise.
outAbsoluteAngle returns 270, and outDirectedAngle returns -270.
Complexity Level
This filter is available on Basic Complexity Level.