Civil 3D - Toolkit - Get subassembly .NET class and assembly name

Civil3D
3

@Brendan_Cassidy your answer about DLL Hell is spot-on, but it’s not quite applicable in this context. Civil 3D Assemblies and Subassemblies are essentially cross section elements that are the building blocks for creating corridor models.

Sub
Sub1121×535 21.4 KB

Subassemblies are defined by a DLL, so the terminology gets confusing because a Subassembly has a corresponding .NET assembly that is used to generate it’s geometry and behavior.

Anyway, @JPS here’s a quick Python snip. The data you’re looking for is stored in the Subassembly’s GeometryGenerator class.

Data
Data692×194 8.52 KB

import clr

clr.AddReference('AcMgd')
clr.AddReference('AcDbMgd')
clr.AddReference('AeccDbMgd')

from Autodesk.AutoCAD.ApplicationServices import *
from Autodesk.AutoCAD.DatabaseServices import *

from Autodesk.Civil.ApplicationServices import *
from Autodesk.Civil.DatabaseServices import *

def get_subassembly_info(subassembly):

	if not subassembly:
		return
	
	adoc = Application.DocumentManager.MdiActiveDocument
	output = []
	
	with adoc.LockDocument():
	    with adoc.Database as db:
	        with db.TransactionManager.StartTransaction() as t:
	            oid = subassembly.InternalObjectId
	            aeccSubassembly = t.GetObject(oid, OpenMode.ForRead)
	            aeccGenerator = aeccSubassembly.GeometryGenerator
	            output.append(aeccGenerator.MacroOrClassName)
	            output.append(aeccGenerator.ProjectOrAssemblyName)
	            t.Commit()
	            pass
	return output

OUT = get_subassembly_info(IN[0])
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