Is possible to automate Cross Slope values in alignment using Dynamo?

Civil3D
1

I’m new on learning Dynamo and C3D API. In the last C3D project i worked on i had a very repetitive task on assigning Cross slope values to a offset alignment through the offset parameters, high and low points for drainage, i had to pick manually every single station and assign value. I would like to know if you think to achieve an automate way to make it is possible

2

Welcome to the forum.
Do you have any screenshot or example that you can show us? Make it easier to help you.

3

Hi,
it is totally possible. This is pretty old, but we use this to add superelevation data to offset profiles.
Inputs: offset alignment, list of stations, list of cross slopes (input format 0.025; 0.05 etc.), description
You can modify it for your needs.

# Load the Python Standard and DesignScript Libraries
import sys
import clr

# Add Assemblies for AutoCAD and Civil3D
clr.AddReference('AcMgd')
clr.AddReference('AcCoreMgd')
clr.AddReference('AcDbMgd')
clr.AddReference('AecBaseMgd')
clr.AddReference('AecPropDataMgd')
clr.AddReference('AeccDbMgd')
clr.AddReference('Civil3DNodes')
clr.AddReference('System')

from System.Collections.Generic import List

# 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 *

# Import references from Civil3D
from Autodesk.Civil.ApplicationServices import *
from Autodesk.Civil.DatabaseServices import *

# Import references for Dynamo for Civil 3D
from Autodesk.Civil.DynamoNodes import Alignment as DynAlignment

# The inputs to this node will be stored as a list in the IN variables.
dataEnteringNode = IN

adoc = Application.DocumentManager.MdiActiveDocument
editor = adoc.Editor
civdoc = CivilApplication.ActiveDocument

align = IN[0]
station = IN[1]
slope = IN[2]
desc = IN[3]

result = []
oppsset = []

def offsetsuper(align,station,slope,desc):
	global adoc
	global editor
	global civdoc
	
	try:	
		with adoc.LockDocument():
			with adoc.Database as db:
				with db.TransactionManager.StartTransaction() as t:
					#Selected alignment ID and object			
					alignment = align
					alignmentId = alignment.InternalObjectId
					al = t.GetObject(alignmentId, OpenMode.ForRead)
					alname = al.Name
					#Profile ID and object
					profileId = al.GetProfileIds()[0]
					profile = t.GetObject(profileId, OpenMode.ForWrite)
					n = station.Count
					opp = profile.OffsetProfileParameters(profile)
					oppstations = opp.Stations
					for i in range(0,n):
						#slopepercent = slope[s]*0.01
						opps = profile.OffsetProfileParametersStation(station[i],slope[i],desc[i])
						oppsset.append(opps) 
					oppssetlist = List[Profile.OffsetProfileParametersStation](oppsset)
					opp.Stations = oppssetlist
					oppstations = opp.Stations
					#list results
					for st in oppstations:
						res = st.Station
						result.append(res)
					#a = opp.Stations
					t.Commit()

	except Exception() as ex:
		oppstations.append(ex.message)
	return result
# Assign your output to the OUT variable.
OUT = offsetsuper(align,station,slope,desc)

image
image590×651 106 KB

2 Likes
4

Thank you so much, that’s super helpful!