Curves in GhPython in Grasshopper

Hello,

I'm creating a parametric surface with a python script in grasshopper (GhPython), which divides three curves into points, and then creates arcs to join the three curves. It uses the Get.Object command to select the curves, but I'm not able to control the resultant form afterwards in Grasshopper to create Pframes or array a geometry on the surface.

My script:

import rhinoscriptsyntax as rs

import Rhino

import scriptcontext as sc

sc.doc = Rhino.RhinoDoc.ActiveDoc

class TanLines:

def __init__(self, _curve, _numOfDivs):

self.curve = _curve;

self.numOfDivs = _numOfDivs

def tanPoints(self,strength):

#print("check")

doms = rs.CurveDomain(self.curve)

minDom = doms[0]

maxDom = doms[1]

ptList = []

tanPtList = []

for i in range (0, self.numOfDivs + 1):

param = (maxDom-minDom)/self.numOfDivs * i

tan = rs.CurveTangent(self.curve, param)

tan = rs.VectorScale(tan, strength)

pt = rs.EvaluateCurve(self.curve, param)

rs.AddPoint(tan)

rs.AddPoint(pt)

tanPt = rs.VectorAdd(tan, pt)

rs.AddLine(pt, tanPt)

ptList.append(pt)

tanPtList.append(tanPt)

return [ptList, tanPtList]

curve01 = rs.GetObject("pick curve 1", 4)

curve02 = rs.GetObject("pick curve 2", 4)

curve03 = rs.GetObject("pick curve 3", 4)

obj01 = TanLines(curve01,50)

data01 = obj01.tanPoints(-0.1)

obj02 = TanLines(curve02,50)

data02 = obj02.tanPoints(-0.1)

obj03 = TanLines(curve03,50)

data03 = obj03.tanPoints(-0.1)

ptList01 = data01[0] #point list of first line

ptList02 = data01[1] #tan points of first line

ptList03 = data02[0]

ptList04 = data02[1]

ptList05 = data03[0]

ptList06 = data03[1]

count = 0

crvList = [] #establish list of curves

for i in ptList01:

pointsForCurve = [ ptList01[count], ptList02[count], ptList03[count], ptList04[count], ptList05[count], ptList06[count] ]

crv=rs.AddArc3Pt(ptList01[count], ptList06[count], ptList04[count])

crvList.append(crv)

count += 1

Surface = rs.AddLoftSrf (crvList)

sc.doc = ghdoc

A = Surface

B = crvList

C = [curve01, curve03]

-

Any help would be much appreciated. Thank you.