UKismetMathLibrary::DegAsin
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Returns the inverse sine (arc sine) of A in degrees. The result is in the range [-90, 90].
Caveats & Gotchas
- • Input must be in [-1, 1]; floating-point dot products or normalized vectors can exceed this range by tiny amounts, producing NaN — clamp the input before calling.
- • The output range is [-90°, 90°], which does not cover the full circle; if you need the angle in a wider context use DegAtan2 with a quadrant-awareness approach.
Signature
static UE_INL_API double DegAsin(double A);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| A | double | Value in the range [-1, 1] to compute the arc sine of. | — |
Return Type
double Example
Pitch angle of a direction vector C++
FVector Dir = (TargetLocation - EyeLocation).GetSafeNormal();
double PitchDeg = UKismetMathLibrary::DegAsin(FMath::Clamp(Dir.Z, -1.0, 1.0));Tags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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