Linked Project Base Point and Survey Point Issue in Revit 2020 using Python in Dynamo(the same works for Revit 2019)

Revit
,
1 
link_base_pt = link_coll.OfClass(BasePoint).ToElements() 
        # print(link_base_pt)
        
        link_Projbase_pt = link_base_pt[1]            
        linkProjBasePt = []   
        a = link_Projbase_pt.Category.Name
        # print(a)
        if a  == 'Project Base Point':
            lpbpEW = link_Projbase_pt.LookupParameter('E/W')
            lpbpNS = link_Projbase_pt.LookupParameter('N/S')
            lpbpElev = link_Projbase_pt.LookupParameter("Elev")
            lpbpAngle = link_Projbase_pt.LookupParameter('Angle to True North')
            linkProjBasePt.append(format_length(lpbpEW.AsDouble()))
            linkProjBasePt.append(format_length(lpbpNS.AsDouble())) 
            linkProjBasePt.append(format_length(lpbpElev.AsDouble())) 
            linkProjBasePt.append(str(round(lpbpAngle.AsDouble() * 180/math.pi,6)))   
        linkProjBasePt_final = linkProjBasePt
        # print(linkProjBasePt_final)
        
        link_SurvPt = link_base_pt[0]   
        linkSurveyPt = []
        b = link_SurvPt.Category.Name
        # print(b)
        if b  == 'Survey Point':
            lpbpEW = link_SurvPt.LookupParameter('E/W')
            lpbpNS = link_SurvPt.LookupParameter('N/S')
            lpbpElev = link_SurvPt.LookupParameter("Elev")

            linkSurveyPt.append(format_length(lpbpEW.AsDouble()))
            linkSurveyPt.append(format_length(lpbpNS.AsDouble())) 
            linkSurveyPt.append(format_length(lpbpElev.AsDouble())) 

        linkSurveyPt_final = linkSurveyPt
        # print(linkSurveyPt_str)   **
2

Hello
Can you explain better your problem, is there an error? Coordinates are incorrect?

3

I am not able to acquire the Project Base Point parameter values and Survey Point parameter values from Linked Revit Files in Revit 2020 using the same piece of python code I use in Revit 2019.

4

try with GetProjectPosition method

here an example

Screenshot_1A
Screenshot_1A1308×888 102 KB

Screenshot_1B
Screenshot_1B1344×924 112 KB 

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 net library
from System.Collections.Generic import List

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


#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

allInstance = FilteredElementCollector(doc).OfClass(RevitLinkInstance).WhereElementIsNotElementType().ToElements() 
out = []
for inst in allInstance:
	d = inst.GetLinkDocument()
	link_base_pt = FilteredElementCollector(d).OfClass(BasePoint).ToElements() 
	temp = [d.Title]
	for pt in  link_base_pt:   
		if pt.Category.Id == ElementId(BuiltInCategory.OST_ProjectBasePoint):
			pos = d.ActiveProjectLocation.GetProjectPosition( XYZ.Zero )
			lpbpEW = pos.EastWest
			lpbpNS = pos.NorthSouth 
			lpbpElev = pos.Elevation
			lpbpAngle = pos.Angle

		else:
			lpbpEW = pt.get_Parameter(BuiltInParameter.BASEPOINT_EASTWEST_PARAM).AsDouble() 
			lpbpNS = pt.get_Parameter(BuiltInParameter.BASEPOINT_NORTHSOUTH_PARAM).AsDouble()
			lpbpElev = pt.get_Parameter(BuiltInParameter.BASEPOINT_ELEVATION_PARAM).AsDouble()
			lpbpAngle = None			
		temp.append(pt.Category.Name)
		temp.append([lpbpEW, lpbpNS, lpbpElev, lpbpAngle])
	
	out.append(temp)
		
OUT = out
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