AddLoftSrf

Adds a surface created by lofting curves to the document.

This function will not perform any curve sorting. You must pass in curves in the order you want them lofted.
This function will not adjust the directions of open curves. Use CurveDirectionsMatch and ReverseCurve to adjust the directions of open curves.
This function will not adjust the seams of closed curves. Use CurveSeam to adjust the seam of closed curves.

Syntax

Rhino.AddLoftSrf (arrObjects [, arrStartPt [, arrEndPt [, intType [, intStyle [, nValue [, blnClosed]]]]]])

Parameters

arrObjects

Required. Array. An ordered array of strings identifying the curve objects to loft.

arrStartPt

Optional. Array. The starting point of the loft.

arrEndPt

Optional. Array. The ending point of the loft.

intType

Optional. Number. The type of loft. The default loft type is Normal (0). The possible loft types are as follows:

Value	Description
0	Normal. Uses chord-length parameterization in the loft direction.
1	Loose. The surface is allowed to move away from the original curves to make a smoother surface. The surface control points are created at the same locations as the control points of the loft input curves.
2	Straight. The sections between the curves are straight. This is also known as a ruled surface.
3	Tight. The surface sticks closely to the original curves. Uses square root of chord-length parameterization in the loft direction.
4	Developable. Creates a separate developable surface or polysurface from each pair of curves.

intStyle

Optional. Number. The simplify method of the loft. The default value is None (0). The possible loft simplify methods are as follows:

Value	Description
0	None. Does not simplify.
1	Rebuild. Rebuilds the shape curves before lofting.
2	Refit. Refits the shape curves to a specified tolerance.

nValue

Optional. Number. A value based on the specified intStyle. If intStyle=1 (Rebuild), then nValue is the number of control point used to rebuild. If intstyle=1 is specified and this argument is omitted, then curves will be rebuilt using 10 control points. If intStyle=2 (Refit), then nValue is the tolerance used to rebuild. If intstyle=2 is specified and this argument is omitted, then the document's absolute tolerance us used for refitting.

blnClosed

Optional. Boolean. Creates a closed surface, continuing the surface past the last curve around to the first curve. Available when you have selected three shape curves. The default value is not to create a closed surface (False).

Returns

Array	An array containing the identifiers of the new surface objects if successful.
Null	If not successful, or on error.

Example

Const rhObjectCurve = 4

Dim arrObjects

arrObjects = Rhino.GetObjects("Pick curves to loft", rhObjectCurve )

If IsArray(arrObjects) And UBound(arrObjects) > 0 Then

Rhino.AddLoftSrf arrObjects

End If

Also See

CurveDirectionsMatch

CurveSeam

ReverseCurve