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AVL.AngleBetweenVectors Method
Measures the angle between two vectors.
| Namespace: | AvlNet |
|---|---|
| Assembly: | AVL.NET.dll |
Syntax
public static void AngleBetweenVectors( AvlNet.Vector2D inVector1, AvlNet.Vector2D inVector2, AvlNet.RotationDirection? inRotationDirection )
Parameters
| Name | Type | Range | Default | Description | |
|---|---|---|---|---|---|
 | inVector1 | AvlNet.Vector2D | Start vector. | ||
| inVector2 | AvlNet.Vector2D | Target vector. | ||
| inRotationDirection | AvlNet.RotationDirection? | Clockwise, counter-clockwise or automatic (by smaller angle). Default value: atl::NIL, or null. |
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.
