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This node outputs the arc tangent of the given input. The arc tangent is the angle whose tangent is the given input. The output is in radians and is in the range -PI/2 to PI/2. Use the atan2 node to get the angle in the range -PI to PI.

Node nameParentsClassificationMFn typeCompatible function sets
atannodemath/trigonometry:utility/scalar:drawdb/shader/operation/atankATankBase
kNamedObject
kDependencyNode
kATan

Related nodes

sin, cos, tan, asin, acos, atan2, atanDL

Attributes (2)

input, output

Long name (short name)TypeDefaultFlags
input (i) double0.0outputinputconnectablestorablekeyable
A double
output (o) angle (double)0.0degoutputconnectable
An angle in radians