Hi,
I started to create a script using CreateOffsetAlignment Method (Database, String, String, Double, String). Something in the code causing C3D fatal error, but interestingly it crashes even if I comment out everything leaving only one line in the block. Tried it with every line but I cannot find the problem. Other scripts are working, tried it with multiple drawings in C3D 2021.2.1 and 2020.6, same result.
multipleoffsetalignments.dyn (13.8 KB)
Thanks in advance.
Hi @kovacsv,
I also got a Fatal Error when trying to run your script. attached is a modified script that does not crash Civil 3D 
I tried to check where your script is causing Civil 3D to crash, but it is still a mystery to me.
multipleoffsetalignments.dyn (19.1 KB)
4 Likes
Thank you, @Assem.Daaboul. I wanted to try the other CreateOffsetAlignment methods, but your version gives the desired result so that will work for me 
, thanks.
Hi @Assem.Daaboul , do you any idea if it is possible to add the offset profiles as well? Can we access that option it via the API?
Thanks everyone! Great content in this forum!
Hi @Tiago.Caldeira,
I believe that you are referring to the option of creating offset profiles while creating the offset alignments similar to the below, right?
I’m not aware of a method to create the offset profiles while creating offset alignments. I’ve checked the documentation [here] (CreateOffsetAlignment Method) with no luck. Maybe you should create a new question for this?
Hey Guys,
I extended the code with offset profile. It is in the 2021.1 API guide.
https://help.autodesk.com/view/CIV3D/2021/ENU/?guid=176ac8e5-a883-70d8-5617-015c9d466419
Needs some refinement (for e.g. making sure the right parent profile is used, and error massages) but does the job.
adoc = Application.DocumentManager.MdiActiveDocument
editor = adoc.Editor
civdoc = CivilApplication.ActiveDocument
align = IN[0]
alignmentstyle = IN[1]
offset = IN[2]
offsetprofilestyle = IN[3]
slope = IN[4]
result = []
def cmoalignments(align,alignmentstyle,offset,offsetprofilestyle,slope):
global adoc
global editor
global civdoc
try:
with adoc.LockDocument():
with adoc.Database as db:
with db.TransactionManager.StartTransaction() as t:
slopepercent = slope/100
n = align.Count
for i in range(0,n):
# get parent alignments to offset
alignment = align[i]
alignmentId = alignment.InternalObjectId
al = t.GetObject(alignmentId, OpenMode.ForRead)
alname = al.Name
# offset alignment name suffix and side variables
bbsz = "BBSZ"
jbsz = "JBSZ"
lso = offset * -1
rso = offset * 1
# get parent profile
profileId = al.GetProfileIds()[0]
profile = t.GetObject(profileId, OpenMode.ForWrite)
profilename = profile.Name
# Left offset Alignment
leftoffsetalname = alname + " " + bbsz
leftoffsetId = al.CreateOffsetAlignment(lso)
leftoffsetal = t.GetObject(leftoffsetId, OpenMode.ForWrite)
leftoffsetal.Name = leftoffsetalname
leftoffsetal.StyleName = alignmentstyle
result.append(leftoffsetalname)
# Left offset Alignment Profile
loprofile = profile.CreateOffsetProfileBySlope(leftoffsetalname,leftoffsetalname,offsetprofilestyle,slopepercent)
# Right Offset Alignment
rightoffsetalname = alname + " " + jbsz
rightoffsetId = al.CreateOffsetAlignment(rso)
rightoffsetal = t.GetObject(rightoffsetId, OpenMode.ForWrite)
rightoffsetal.Name = rightoffsetalname
rightoffsetal.StyleName = alignmentstyle
result.append(rightoffsetalname)
# Right offset Alignment Profile
roprofile = profile.CreateOffsetProfileBySlope(rightoffsetalname,rightoffsetalname,offsetprofilestyle,slopepercent)
t.Commit()
except Exception() as ex:
result.append(ex.message)
return result
# Assign your output to the OUT variable.
OUT = cmoalignments(align,alignmentstyle,offset,offsetprofilestyle,slope)
5 Likes
@Assem.Daaboul Could you help me? how can I use the method with start and end station. I modified your code and i got “Exceptione: eDegeneratedGeometry” at last.
# 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')
# 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
palign = IN[0]
offset = IN[1]
alignmentstyle = IN[2]
start = IN[3]
end = [4]
def cmoalignments(palign,offset,alignmentstyle,start,end):
global adoc
global editor
global civdoc
try:
with adoc.LockDocument():
with adoc.Database as db:
with db.TransactionManager.StartTransaction() as t:
alignmentId = palign.InternalObjectId
al = t.GetObject(alignmentId, OpenMode.ForRead)
alname = al.Name
startname = "start"
endname = "end"
lso = offset * -1
rso = offset * 1 # for ease of code reading
# Left offset Alignment
offsetalname = alname.join(startname)
offsetId = al.CreateOffsetAlignment(offset)
offsetal = t.GetObject(offsetId, OpenMode.ForWrite)
offsetal.Name = offsetalname
offsetal.StyleName = alignmentstyle
offsetal.StartingStation = start
offsetal.EndingStation = end
result.append(offsetalname)
t.Commit()
except Exception() as ex:
result.append(ex.message)
return result
# Assign your output to the OUT variable.
OUT = cmoalignments(palign,offset,alignmentstyle,start,end)
I think here IN[4] should be there.
When i correct that and run the code i get bellow error.
Hi, I was on vacation (Lucky me 
) will check and get back to you
Hi,
Below is a quick (probably requires a lot of cleaning) solution to use the start and the end station while creating offset alignment. I’ve used the Alignment.CreateOffsetAlignment Method (database, offset alignment name, parent alignment name, offset, style, start station, end station) to create the offset alignments. Note the additional import [from Autodesk.Civil import *]
# 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')
# 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 import *
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]
alignmentstyle = IN[1]
offset = IN[2]
startstation = IN[3]
endstation = IN[4]
result = []
def cmoalignments(align,alignmentstyle,offset):
global adoc
global editor
global civdoc
try:
with adoc.LockDocument():
with adoc.Database as db:
with db.TransactionManager.StartTransaction() as t:
alignmentId = align.InternalObjectId
al = t.GetObject(alignmentId, OpenMode.ForRead)
alname = al.Name
bbsz = "BBSZ"
jbsz = "JBSZ"
lso = offset * -1
rso = offset * 1 # for ease of code reading
# Left offset Alignment
leftoffsetalname = alname + "-" + bbsz
leftoffsetId = Alignment.CreateOffsetAlignment(db,leftoffsetalname,alname,lso,alignmentstyle,startstation,endstation)
result.append(leftoffsetalname)
# Right Offset Alignment
rightoffsetalname = alname + "-" + jbsz
rightoffsetId = Alignment.CreateOffsetAlignment(db,rightoffsetalname,alname,rso,alignmentstyle,startstation,endstation)
result.append(rightoffsetalname)
t.Commit()
except Exception() as ex:
result.append(ex.message)
return result
# Assign your output to the OUT variable.
OUT = cmoalignments(align,alignmentstyle,offset)
1 Like
Thank You, that works perfectly