M

AnalyticalModel.SetOffset

Description:
Sets the offset of the analytical model at end.

public void SetOffset(
	AnalyticalElementSelector selector,
	XYZ offset
)

Public Sub SetOffset ( _
	selector As AnalyticalElementSelector, _
	offset As XYZ _
)

public:
void SetOffset(
	AnalyticalElementSelector selector, 
	XYZ^ offset
)

Autodesk.Revit.DB.Structure.AnalyticalElementSelector

selector

End of analytical model to offset.
Autodesk.Revit.DB.XYZ

offset

New offset for end of analytical model.

// extend the analytical model by 1 foot at each end. Direction of offset is parallel to the analytical model curve.
AnalyticalModel model = familyInstance.GetAnalyticalModel();
Curve curve = model.GetCurve();
XYZ tangentDirection0 = curve.ComputeDerivatives(0, true).BasisX.Normalize().Negate();
XYZ tangentDirection1 = curve.ComputeDerivatives(1, true).BasisX.Normalize();
model.SetOffset(AnalyticalElementSelector.StartOrBase, tangentDirection0);
model.SetOffset(AnalyticalElementSelector.EndOrTop, tangentDirection1);

' extend the analytical model by 1 foot at each end. Direction of offset is parallel to the analytical model curve.
Dim model As AnalyticalModel = familyInstance.GetAnalyticalModel()
Dim curve As Curve = model.GetCurve()
Dim tangentDirection0 As XYZ = curve.ComputeDerivatives(0, True).BasisX.Normalize().Negate()
Dim tangentDirection1 As XYZ = curve.ComputeDerivatives(1, True).BasisX.Normalize()
model.SetOffset(AnalyticalElementSelector.StartOrBase, tangentDirection0)
model.SetOffset(AnalyticalElementSelector.EndOrTop, tangentDirection1)

Autodesk.Revit.Exceptions.ArgumentNullException

A non-optional argument was null
Autodesk.Revit.Exceptions.ArgumentOutOfRangeException

A value passed for an enumeration argument is not a member of that enumeration
Autodesk.Revit.Exceptions.InvalidOperationException

Function only work for curve-based elements.