Visibility states: How to get and set this for dynamic block references?

[Drbohlav]

Hi, do you think it is possible now to get and set visibility states for Dynamic Blocks in Dynamo for Civil 3D?

[Drbohlav]

Hi, I found this: How to access and modify a DynamicBlockReference property in ARX and .Net? - AutoCAD DevBlog
Is here anyone who solved this already in Python please?

[c.poupin]

Hi,
a rapid test with CADPythonShell

import clr
import System
clr.AddReference('acmgd')
clr.AddReference('acdbmgd')
clr.AddReference('accoremgd')
# Import references from AutoCAD
from Autodesk.AutoCAD.Runtime import *
from Autodesk.AutoCAD.ApplicationServices import *
from Autodesk.AutoCAD.EditorInput import *
from Autodesk.AutoCAD.DatabaseServices import *
from Autodesk.AutoCAD.Geometry import *
doc = Application.DocumentManager.MdiActiveDocument
ed = doc.Editor
db = doc.Database
# Write Code Below
# name and value property to set dynamic block
namePropVisu = 'Visibilité1'
valuePropVisu = 'Type D'

with doc.LockDocument():
	with doc.Database as db:
		with db.TransactionManager.StartTransaction() as t:
			bt = t.GetObject(db.BlockTableId,OpenMode.ForRead)
			btr  = t.GetObject(bt[BlockTableRecord.ModelSpace],OpenMode.ForRead)
			for objectid in btr:
				blkRef = t.GetObject(objectid, OpenMode.ForRead)
				if isinstance(blkRef, BlockReference):
					if blkRef.IsDynamicBlock:
						block = t.GetObject(blkRef.DynamicBlockTableRecord, OpenMode.ForRead)
						blkName = block.Name
						props = blkRef.DynamicBlockReferencePropertyCollection
						for prop in props:
							values = prop.GetAllowedValues()
							print(("values", values))
							print("PropertyName", prop.PropertyName)
							if prop.PropertyName == namePropVisu and not prop.ReadOnly:
								idx = System.Array.IndexOf(values, valuePropVisu)
								print("Value", prop.Value)
								print("idx", idx)
								prop.Value = values[idx]

			t.Commit()

[Drbohlav]

Hi, at this moment I have the goal to get solid from visibility state which is currently set in model space and create solid geometry in Dynamo. I tried to edit your code but I have some errors and I do not know how to continue. Could you give me any hint please?

[c.poupin]

Hi @Drbohlav

I admit that I have no idea how to get the geometry of a dynamic block

[hosneyalaa]

@Drbohlav
Try node block.objects or you need changing python code

Can you attached example drawing for testing

[Drbohlav]

Hi @hosneyalaa,
here is example. I’m looking for solution how to get geometry for current visibility. Is here anyne who can help with solution?

Block.dwg (518.6 KB)
D4C3D_block.dyn (18.9 KB)

[Drbohlav]

This is a workaround after I gave up trying to solve this using Python. You need to set the layers for the objects to the individual visibility states. Then you can simply filter geometry.