siFCurveKeyConstraint

Function curve key constraints. The last seven tangent constraints apply only to standard function curves. FCurve key constraints can be set and retrieved via the FCurveKey.Constraint property.

The constraints are not mutally exclusive for example if you have the siParameterConstraint set and clear the siLockConstraint you will also clear the siParameterConstraint. You cannot set constraints on a raw function curve. They will be ignored.

C# Syntax

siFCurveKeyConstraint.siParameterConstraint // 1 siFCurveKeyConstraint.siLeftRightValuesConstraint // 2 siFCurveKeyConstraint.siG1ContinuousConstraint // 4 siFCurveKeyConstraint.siLeftRightTangentDirectionConstraint // 8 siFCurveKeyConstraint.siLeftRightTangentLengthConstraint // 16 siFCurveKeyConstraint.siLockConstraint // 32 siFCurveKeyConstraint.siHorizontalTangentConstraint // 64 siFCurveKeyConstraint.siExtremumHorizontalTangentConstraint // 128 siFCurveKeyConstraint.siZeroLengthTangentConstraint // 512 siFCurveKeyConstraint.siSameLengthTangentConstraint // 1024 siFCurveKeyConstraint.siNeighborTangentConstraint // 2048 siFCurveKeyConstraint.siMirrorTangentConstraint // 4096 siFCurveKeyConstraint.siAutoPlateauTangentConstraint // 8192 siFCurveKeyConstraint.siAdjustedTangentConstraint // 8448

Constant	Value	Description
siAdjustedTangentConstraint	8448	If on, the tangents are adjusted automatically when neighbouring keys are created or moved.
siAutoPlateauTangentConstraint	8192	If on, the left and right tangents are automatically adjusted and plateaued based on neighbouring keys.
siExtremumHorizontalTangentConstraint	128	If on, the tangents are considered as horizontal when the key is a local extremum.
siG1ContinuousConstraint	4	If on, the left and right tangent orientations are the same.
siHorizontalTangentConstraint	64	If on, the tangents are considered horizontal.
siLeftRightTangentDirectionConstraint	8	If on, the left and right tangent directions are locked.
siLeftRightTangentLengthConstraint	16	If on, the left and right tangent lengths are locked.
siLeftRightValuesConstraint	2	If on, the left and right key values are locked.
siLockConstraint	32	If on, the parameter, values, and tangents are locked.
siMirrorTangentConstraint	4096	If on, the left and right tangents are mirrored.
siNeighborTangentConstraint	2048	If on, the left and right tangent point at the previous and next keys.
siParameterConstraint	1	If on, the parameter (or key time) is locked.
siSameLengthTangentConstraint	1024	If on, the left and right tangent lengths are the same.
siZeroLengthTangentConstraint	512	If on, the left and right tangent lengths are constrained to be zero.

siFCurveKeyConstraint

Description

C# Syntax

Applies To

See Also