This Rhino Script uses a series of curves, warp, and weft, running parallel to the UV directions of a surface, weaving two disparate series of integers as rules for the over/under pattern.

Rhino Script

Option Explicit
'Script written by <David Mans>
'Script copyrighted by <Neoarchaic Design>
'Script version Friday, September 12, 2008 6:05:11 PM

Call Main()
Sub Main()
	Dim surface, arrItems, arrValues, arrResults, rhythmA,rhythmB
	surface = Rhino.GetObject("Select Surface", 8)
	If isNull(surface) Then Exit Sub
	
	arrItems = array("Warp Strands", "Weft Strands", "Depth", "Warp Rhythm(up,down...)", "Warp Rhythm(up,down...)")
	arrValues = array(10, 10, 1, "2,3,2", "2,3,2")
	arrResults = Rhino.PropertyListBox(arrItems, arrValues,, "Weave Settings")
	
	rhythmA = split(arrResults(3), ",")
	rhythmB = split(arrResults(4), ",")
	
	Call Rhino.EnableRedraw(False)
	Call reparameterize(surface)
	Call weave(surface, CDbl(arrResults(0)), CDbl(arrResults(1)), CDbl(arrResults(2)), rhythmA, rhythmB)
	Call Rhino.EnableRedraw(True)
	
	
End Sub
Function weave(surface, cols, rows, scale, rhythmA, rhythmB)
	weave = Null
	
	Dim i,j,r,s,t,u,v
	Dim uDom, vDom
	Dim pts(), ptsX(1), pt()
	ReDim pts(rows),pt(cols)
	
	uDom = Rhino.SurfaceDomain(surface, 0)(1)
	vDom = Rhino.SurfaceDomain(surface, 1)(1)
	For i = 0 To cols Step 1
		For j = 0 To rows Step 1
			ptsX(0) = Rhino.PointAdd(Rhino.EvaluateSurface(surface, array((uDom / cols) * i, (vDom / rows) * j)), Rhino.VectorScale(Rhino.VectorUnitize(Rhino.SurfaceNormal(surface, array((uDom / cols) * i, (vDom / rows) * j))), scale))
			ptsX(1) = Rhino.PointAdd(Rhino.EvaluateSurface(surface, array((uDom / cols) * i, (vDom / rows) * j)), Rhino.VectorScale(Rhino.VectorUnitize(Rhino.VectorReverse(Rhino.SurfaceNormal(surface, array((uDom / cols) * i, (vDom / rows) * j)))), scale))
			pts(j) = ptsX
		Next
		pt(i) = pts
	Next
	
	Dim a,b
	Dim inverse(),inv(),pointSetA(),pointSetB()
	ReDim inverse(rows),inv(cols),pointSetA(rows),pointSetB(cols)
	
	Dim arrBln(), blnSt
	ReDim arrBln(cols)
	
	u = 0
	t = rhythmA(0)
	For i = 0 To cols Step 1
		If u Mod (2) Then
			v = 0
		Else
			v = 1
		End If
		r = rhythmB(0)
		For j = 0 To rows Step 1
			If v Mod (2) Then
				a = 0: b = 1
			Else
				a = 1: b = 0
			End If
			r = r - 1
			If r = 0 Then
				r = rhythmB(s)
				v = v + 1
			End If
			If s > uBound(rhythmB)Then
				v = 0
			End If
			
			pointSetA(j) = pt(i)(j)(a)
			inverse(j) = b
		Next
		t = t - 1
		If t = 0 Then
			t = rhythmA(u)
			u = u + 1
			
		End If
		If u > uBound(rhythmA)Then
			u = 0
		End If
		inv(i) = inverse
		blnSt = False
		r = 0
		For j = 0 To rows Step 1
			r = r + inverse(j)
		Next
		If r = 0 Or r = rows - 1 Then
		Else
			Call Rhino.addcurve(pointSetA, 3)
		End If
	Next
	
	For i = 0 To rows Step 1
		r = 0
		For j = 0 To cols Step 1
			r = r + inv(j)(i)
		Next
		
		For j = 0 To cols Step 1
			pointSetB(j) = pt(j)(i)(inv(j)(i))
		Next
		If r = 0 Or r = cols - 1 Then
		Else
			Call Rhino.addcurve(pointSetB, 3)
		End If
	Next
End Function
Function reparameterize(strCurveID)
	If Rhino.IsCurve(strCurveID) = True Then
		Call rhino.SelectObject(strCurveID)
		Call rhino.Command("reparameterize 0 1")
		Call rhino.UnselectAllObjects()
	End If
	If Rhino.IsSurface(strCurveID) = True Then
		Call rhino.SelectObject(strCurveID)
		Call rhino.Command("reparameterize 0 1 0 1")
		Call rhino.UnselectAllObjects()
	End If
End Function