Change Revit Grid Extents

Revit
5

Thank you!
I have to change some old node to get it to work on the active view
First python script is to get grid length

import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

# Import DocumentManager and TransactionManager
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

# Import RevitAPI
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *

clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.GeometryConversion)


doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application


grids = UnwrapElement(IN[0])
view = UnwrapElement(IN[1])

gridCurves = []
curves = []


for g in grids:
	gridCurves.append(g.GetCurvesInView(DatumExtentType.Model, view))

for i in range(0,len(gridCurves)):
	for c in gridCurves[i]:
		start = c.GetEndPoint(0)
		end = c.GetEndPoint(1)
		curves.append(Line.CreateBound(start,end).ToProtoType())

#Assign your outputs to the OUT variable
OUT = curves

And the last script is for setting grid lines

import clr
clr.AddReference(‘ProtoGeometry’)
from Autodesk.DesignScript.Geometry import *

# Import DocumentManager and TransactionManager
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

# Import RevitAPI
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *

clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.GeometryConversion)


doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application


grids = UnwrapElement(IN[0])
view = UnwrapElement(IN[1])
crvs = UnwrapElement(IN[2])

curves = []
curvesViews = []

TransactionManager.Instance.EnsureInTransaction(doc)

for i in range(0,len(grids)):	
	grids[i].SetCurveInView(DatumExtentType.ViewSpecific,view,crvs[i])


TransactionManager.Instance.TransactionTaskDone()
	

	
#Assign your outputs to the OUT variable
OUT = grids