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HermiteSplineTangents.StartTangent

Property
Description:
The tangent vector at the start of the curve.
Syntax
public XYZ StartTangent { get; set; }
Exceptions
Exception Condition
ArgumentNullException When setting this property: A non-optional argument was null
ArgumentOutOfRangeException When setting this property: startTangent is not length 1.0.
InapplicableDataException The start tangent value is not set.