Create dimension, does not work?

Developers
1

Hello,

so i want to create a simple dimension, it almost works, but “XYZ” is for any reason not defined so whats going on?
grafik
grafik

import sys
import clr

clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *

clr.AddReference('RevitAPIUI')
from Autodesk.Revit.UI import *

clr.AddReference('System')
from System.Collections.Generic import List

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.GeometryConversion)
clr.ImportExtensions(Revit.Elements)

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument
uidoc=DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument

#Preparing input from dynamo to revit
walls_ = FilteredElementCollector(doc).OfClass(Wall).ToElements()
dTypes = FilteredElementCollector(doc).OfClass(DimensionType).ToElements()
linearTypes = [d for d in dTypes if d.StyleType == DimensionStyleType.Linear]
linear = linearTypes[0]

line_ = UnwrapElement(IN[0]).Location.Curve

opt = Options()
opt.ComputeReferences = True
opt.IncludeNonVisibleObjects = True
opt.View = doc.ActiveView
references = ReferenceArray()

def isParallel(v1,v2):
    return v1.CrossProduct(v2).IsAlmostEqualTo(XYZ(0,0,0))

for wall_ in walls_:
    for obj in wall_.get_Geometry(opt):
        if isinstance(obj, Solid):
            solid = obj
            for face in solid.Faces:
                if isParallel(face.FaceNormal, line_.GetEndPoint(1) - line_.GetEndPoint(0)):
                    refernces.append(face.Reference)
                else:
                    pass
        else:
            pass
#Do some action in a Transaction
TransactionManager.Instance.EnsureInTransaction(doc)
nd = doc.Create.NewDimension(doc.ActivView, line_, references, linear)
TransactionManager.Instance.TransactionTaskDone()

OUT = "done"

KR

Andreas

2

Try using the subtract method instead of the generic operand.

It should work with the operand so you might want to return the endpoints and make sure you’re getting valid values as well.

1 Like
3

@Nick_Boyts ,

thanks for the advice

what does it mean in practice?

def isParallel(v1,v2):
    return v1.CrossProduct(v2).IsAlmostEqualTo(XYZ(0,0,0))

def isParallel(v1,v2):
    return v1.CrossProduct(v2).Subtract(XYZ(0,0,0))

Need i “subtract” my values from X,Y,Z ?

4

The error is coming from this line.

1 Like