Distance between to dimension lines? change

Revit
6

An example using vectors operations


import clr
import sys
import System
#
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
import Autodesk.DesignScript.Geometry as DS

#import Revit API
clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *
import Autodesk.Revit.DB as DB

#import transactionManager and DocumentManager (RevitServices is specific to Dynamo)
clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument

  
def dim_to_BoundLine(dim):
    curvDim = dim.Curve
    direction = curvDim.Direction
    start = dim.Origin.Subtract(direction.Multiply( dim.Value/2))			
    end = dim.Origin.Subtract(direction.Multiply(-1 * dim.Value/2 ))		
    #
    return DB.Line.CreateBound(start, end)
    
    
def get_distance_beetween(dimA, dimB):
    lineA = dim_to_BoundLine(dimA)
    lineB = dim_to_BoundLine(dimB)
    pta = lineA.GetEndPoint(0)
    ptb = lineB.GetEndPoint(0)
    normalA = lineA.Direction.CrossProduct(XYZ.BasisZ)
    vector_lines = ptb.Subtract(pta)
    distance = vector_lines.DotProduct(normalA.Normalize())
    return f"{abs(distance) * 304.8:0.1f} mm"

#Preparing input from dynamo to revit
dimA = UnwrapElement(IN[0])
dimB = UnwrapElement(IN[1])


OUT = get_distance_beetween(dimA, dimB)