"""

Copyright 2019 Autodesk, Inc. All rights reserved.

# https://forum.dynamobim.com/t/use-dynamo-to-create-and-manipulate-autocad-civil-3d-layers/38567/8

This file is part of the Civil 3D Python Module.

"""

__author__ = 'Paolo Emilio Serra - paolo.serra@autodesk.com'

__modifiedby__ = 'Deivid Steffens - deividsteffens@msn.com'

__copyright__ = '2020'

__version__ = '1.0.0'

import clr

# Add Assemblies for AutoCAD and Civil 3D APIs

clr.AddReference('acmgd')

clr.AddReference('acdbmgd')

clr.AddReference('accoremgd')

clr.AddReference('AecBaseMgd')

clr.AddReference('AecPropDataMgd')

clr.AddReference('AeccDbMgd')

clr.AddReference('AeccPressurePipesMgd')

clr.AddReference('acdbmgdbrep')

clr.AddReference('System.Windows.Forms')

# Add standard Python references

import sys

sys.path.append('C:\Program Files (x86)\IronPython 2.7\Lib')

import os

import math

# Add references to manage arrays, collections and interact with the user

from System import *

from System.IO import *

from System.Collections.Specialized import *

from System.Windows.Forms import MessageBox

# Create an alias to the Autodesk.AutoCAD.ApplicationServices.Application class

import Autodesk.AutoCAD.ApplicationServices.Application as acapp

# 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 *

from Autodesk.AutoCAD.Colors import Color

from Autodesk.AutoCAD.Colors import ColorMethod

# Import references for PropertySets

from Autodesk.Aec.PropertyData import *

from Autodesk.Aec.PropertyData.DatabaseServices import *

# Import references for Civil 3D

from Autodesk.Civil.ApplicationServices import *

from Autodesk.Civil.DatabaseServices import *

adoc = acapp.DocumentManager.MdiActiveDocument

ed = adoc.Editor

# Example function

def create_layer(name, index):

indx = int(index)

# Fail gracefully

if not isinstance(name, str) or len(name) == 0:

raise Exception('The name is not a valid string')

if not isinstance(indx, int) or indx < 0 or indx > 255:

raise Exception('The index component is not a valid integer')

# replace invalid characters in the name

name = name.replace(':', '_').replace(';', '_').replace(',', '_')

global adoc

result = False

with adoc.LockDocument():

with adoc.Database as db:

with db.TransactionManager.StartTransaction() as t:

# Get the Layer Table Object

lt = t.GetObject(db.LayerTableId, OpenMode.ForRead)

# Check if the layer already exists

if not lt.Has(name):

with LayerTableRecord() as ltr:

ltr = LayerTableRecord()

ltr.Name = name

ltr.Color = Color.FromColorIndex(ColorMethod.ByAci,indx)

lt.UpgradeOpen()

lt.Add(ltr)

lt.DowngradeOpen()

t.AddNewlyCreatedDBObject(ltr, True)

else:

ltr = t.GetObject(lt[name], OpenMode.ForWrite)

# Set the color

if ltr is not None:

ltr.Color = Color.FromColorIndex(ColorMethod.ByAci,indx)

result = True

t.Commit()

return result

for i in range(10):

name = "Test"+ str(i)

create_layer(name,i)

print("Created Layer",name)