Hi guys,
I want to dimension horizontal curtain grid on curtain wall.
I used “Dimension By Reference” Node but only dimension Vertical Curtain Grid.
I understand this node use reference of curtain wall to dimension. But only Vertical Curtain Grid
So, how can i dimension horizontal curtain grid ?
Thank you.
Hey,
So this is my go, just by digging around in the Custom Node and the API…
The node uses GetVGridLineIds… I used U instead http://www.revitapidocs.com/2018/d3bdb700-0cdd-c7c4-e33f-04424c3f03a6.htm
Then to get the edges, I needed the faces which were either up or down, ie. their faces normals were 0,0,1 or 0,0,-1
#Based on a script of maciek.glowka : http://lubim.co
#Thanks to Alban @GeniusLoci !
import clr
clr.AddReference("RevitAPI")
from Autodesk.Revit.DB import *
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
walls = UnwrapElement(IN[0])
if not hasattr(walls, '__iter__'):
walls = [walls]
#def isParallel(v1,v2):
# return v1.CrossProduct(v2).IsAlmostEqualTo(XYZ(0,0,0))
for wall in walls:
line = wall.Location.Curve
lineDir = line.GetEndPoint(1) - line.GetEndPoint(0)
doc=wall.Document
refArray = ReferenceArray()
options = Options()
options.ComputeReferences = True
options.IncludeNonVisibleObjects = True
geoElement = wall.get_Geometry(options)
#get side references
for obj in geoElement:
if isinstance(obj,Solid):
for f in obj.Faces:
faceNormal = f.FaceNormal.Normalize()
# if isParallel(faceNormal,lineDir):
if faceNormal.IsAlmostEqualTo(XYZ(0,0,1)) or faceNormal.IsAlmostEqualTo(XYZ(0,0,-1)):
refArray.Append(f.Reference)
#get grid references
#for id in wall.CurtainGrid.GetVGridLineIds():
for id in wall.CurtainGrid.GetUGridLineIds():
gridLine = doc.GetElement(id)
gridGeo = gridLine.get_Geometry(options)
for obj in gridGeo:
if isinstance(obj,Line):
refArray.Append(obj.Reference)
OUT = refArray
Hope that’s useful!
Mark
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Hi @Mark.Ackerley
Thank you very much for your post.
I don’t have knowledge about Python, API…
I ever study about Python and API but i don’t understand about them 
Thank you again.
1 Like