Pick Point node that works for active document (Civil3D)

Civil3D
,
1

Hi,

I’m trying to add a Pick Point feature inside a script that pops-up for the user to pick a point in the model. I’ve tried different ways but each of them have its limitation.

  1. I’ve tried using this script below that comes from LinkDWG package.
#LinkDWG Core DYF by Koz Jono YEOH
#kozmosovia@hotmail.com
#Copyright(C) 1994-2020 KozMos Inc.
#Copyright(C) 2011-2020 Neila Heaven Networks
#Copyright(C) 2017-2020 Tachyon Intelligent Design Institute

import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
import System
clr.AddReference('System.Windows.Forms')
from System.Windows.Forms import MessageBox

msg="Pick a point"
osm=169
doc=System.Runtime.InteropServices.Marshal.GetActiveObject("Autocad.Application").ActiveDocument
rrr=None

if IN[0] == True and doc:
	try:
		mbx="Pick a point in the drawing to create new assembly."
		MessageBox.Show(mbx, "LinkDWG Message")
		old=doc.GetVariable("osmode")
		usr=doc.GetVariable("users5")
		doc.SetVariable("osmode", int(osm))
		doc.Activate()
		doc.SendCommand("(setq pt(getpoint\042" + msg + "\042)) ")
		doc.SendCommand("(and pt(setvar\042users5\042(strcat(rtos(car pt))\042#\042(rtos(cadr pt))\042#\042(rtos(caddr pt))))(setq pt nil)) ")
		rtn=doc.GetVariable("users5")
		doc.SetVariable("osmode", old)
		if rtn != usr:
			rtn=rtn.split("#")
			if len(rtn) == 3:
				rrr=Point.ByCoordinates(float(rtn[0]),float(rtn[1]),float(rtn[2]))
				doc.SetVariable("users5", usr)
	except: pass
else:
	rrr=[]
OUT = rrr

But having a problem when I have multiple documents opened because the script goes and activates the first opened document session (ei. If two Civil3D sessions are opened - the pick point function is activated in another session that I don’t want). And I found out that this happens since the script goes through the system and GetActiveObejct, it selects the one that was opened first. I think the ‘UIApplication.ActiveUIDocument.Document’ solves this issue for Revit, but haven’t figured out how to apply this to Civil3D.

  1. Data-Shape pick point node only offer picking point on a face so this is not what I need.
  2. And there’s a Pick Point node in Civil3D but it doesn’t offer pop-up function and doesn’t work in Dynamo Player either. I have left an inquiry about this already - waiting to hear back.

I think revising LinkDWG script to pick the active document I’m working on would be the best bet, but not sure how to. Can anyone help?

Thanks,

2

You should be able to use the document manager for this:

Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument

Check out this post.

3

It works perfectly. Thank you so much :slight_smile: !!