Integrate Dynamo with Autocad

[Yonas89]

Hello,

I am not sure which forum to choose for my question, thus I hope I have chosen the right one. I have read and watched about Dynamo compatibility with Revit and it looks just amazing. However I use Civil 3d in my daily process which is AutoCAD based and though it's  challenging  to combine Dynamo with AutoCAD, I know it's possible, but I don't know how. I would like to discuss with you guys, maybe you have some experience with it or some thoughts to share. I have found this short video here: https://www.youtube.com/watch?v=oiz76GTN-8Y. Sorry that it's in Russian, don't understand Russian but I get the point that AutoCAD objects could be controlled from Dynamo.

[Anonymous]

KhasanMamaev

Good day Khasan

Exactly how do you select the item in Autodesk? I have all the required packages and the IronPython script. I also have an AutoCAD file open with a random polyline I drew. How do I prime the code to select that line?

[Anonymous]

import System
app = System.Runtime.InteropServices.Marshal.GetActiveObject("Autocad.Application")
AcDoc = app.ActiveDocument
msp = AcDoc.ModelSpace
plines = []
for i in msp:
    if i.ObjectName == 'AcDbPolyline':
        plines.append(i)
OUT = plines 

[Anonymous]

Thanks!

Could you advise what it is I am doing wrong here: I am attempting to read in a curve by three points

restart = IN[0]
if IN[1] != True: off = 1/0

import clr

clr.AddReference('ProtoGeometry')
import Autodesk
from Autodesk.DesignScript.Geometry import *

import System
from System import *

DPoint = Autodesk.DesignScript.Geometry.Point
DCurve = Autodesk.DesignScript.Geometry.Arc

app = System.Runtime.InteropServices.Marshal.GetActiveObject("Autocad.Application")
AcDoc = app.ActiveDocument

def ptD(p):
    return DPoint.ByCoordinates(p[0],p[1],p[2])

def curveD(p1,p2,p3):
    return DCurve.ByStartPointEndPoint(ptD(p1),ptD(p2),ptD(p3))

sset = AcDoc.PickfirstSelectionSet
n = sset.Count

curvs = []
for i in range(n):
    if sset.Item(i).EntityName == "AcGeCircArc3d":
        stpt = sset.Item(i).StartPoint
        midpt = sset.Item(i).pnt;
        enpt = sset.Item(i).EndPoint
        lns = curveD(stpt,midpt,enpt)
        curvs.append(lns)

OUT = curvs

[Anonymous]

import clr

clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

import System

app = System.Runtime.InteropServices.Marshal.GetActiveObject("Autocad.Application")
AcDoc = app.ActiveDocument

sset = list(iter(AcDoc.PickfirstSelectionSet))

def ptD(p):
    return Point.ByCoordinates(p[0],p[1],p[2])

def curveD(p1,p2,p3):
    return Arc.ByCenterPointStartPointEndPoint(p1,p2,p3)

curvs = []
for i in sset:
    if i.EntityName == "AcDbArc":
        stpt = ptD(i.StartPoint)
        cent = ptD(i.Center)
        enpt = ptD(i.EndPoint)
        lns = curveD(cent,stpt,enpt)
        curvs.append(lns)
OUT = curvs

[ppesquera]

I seem to be getting some script errors over here. I'm wondering if it's because Autocad MEP isn't accepting them, or that I'm Using Dynamo 2017 with old packages.

[Yonas89]

@ppesquera,

based on the error it's not related with a  AutoCAD MEP. Remember that MEP  is a vertical product of AutoCAD, so until you manipulate AutoCAD objects such as blocks, lines, layers etc. it is only related to AutoCAD. Your error simply says that in the line 2 the script is trying to divide   by 0.  I believe a 2nd line in your script looks like this: if IN[1] != True: off = 1/0 . Try to switch ON/OFF node to true. Should work. 

[ppesquera]

oooh... looks like I'm getting an error in line 25.

Warning: IronPythonEvaluator.EvaluateIronPythonScript operation failed. 
Traceback (most recent call last):
  File "<string>", line 25, in <module>
EnvironmentError: System.Runtime.InteropServices.COMException (0x8001010A): The message filter indicated that the application is busy. (Exception from HRESULT: 0x8001010A (RPC_E_SERVERCALL_RETRYLATER))
   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
   at Microsoft.Scripting.ComInterop.ComRuntimeHelpers.GetITypeInfoFromIDispatch(IDispatch dispatch, Boolean throwIfMissingExpectedTypeInfo)
   at Microsoft.Scripting.ComInterop.IDispatchComObject.EnsureScanDefinedMethods()
   at Microsoft.Scripting.ComInterop.IDispatchComObject.System.Dynamic.IDynamicMetaObjectProvider.GetMetaObject(Expression parameter)
   at System.Dynamic.DynamicMetaObject.Create(Object value, Expression expression)
   at System.Dynamic.DynamicMetaObjectBinder.Bind(Object[] args, ReadOnlyCollection`1 parameters, LabelTarget returnLabel)
   at System.Runtime.CompilerServices.CallSiteBinder.BindCore[T](CallSite`1 site, Object[] args)
   at System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0)
   at System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0)
   at Microsoft.Scripting.Interpreter.DynamicInstruction`2.Run(InterpretedFrame frame)
   at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
   at Microsoft.Scripting.Interpreter.LightLambda.Run3[T0,T1,T2,TRet](T0 arg0, T1 arg1, T2 arg2)
   at System.Dynamic.UpdateDelegates.UpdateAndExecute2[T0,T1,TRet](CallSite site, T0 arg0, T1 arg1)
   at Microsoft.Scripting.Interpreter.DynamicInstruction`3.Run(InterpretedFrame frame)
   at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
   at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1)
   at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx)
   at Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope)
   at DSIronPython.IronPythonEvaluator.EvaluateIronPythonScript(String code, IList bindingNames, IList bindingValues)

[Yonas89]

@ppesquera,

can you tell me what are you trying to achieve? Maybe you could post your script content?

[ppesquera]

I'm really just trying to make the lines appear in Autocad MEP as the file intended.

but I'm hoping this is the correct script provided by the file I just downloaded.

restart = IN[0]
if IN[1] != True: off = 1/0

import clr

clr.AddReference('ProtoGeometry')
import Autodesk
from Autodesk.DesignScript.Geometry import *

import System
from System import *

app = System.Runtime.InteropServices.Marshal.GetActiveObject("Autocad.Application")
AcDoc = app.ActiveDocument

lines = IN[2]

def ptA(p):
	return Array[float]([p.X, p.Y, p.Z]) 


for k in lines:
	stpt = ptA(k.StartPoint)
	enpt = ptA(k.EndPoint)
	linn = AcDoc.ModelSpace.AddLine(stpt, enpt)

[ppesquera]

Please disregard that last message,

I finally got it to work XD. it was as you explained. All I needed to do was turn the On/Off Switch to True.

Thank you for your patience.

[FrankHuang]

Dynamo has been integrated to Autodesk Civil 3D. we have a lot of nodes created for AutoCAD as well. go ahead and check it if needed for your workflow. 

[Anonymous]

I'm trying to integrate dynamo with AutoCAD to do a certain task to creat hatch I hope someone can help me with the coding as I'm new and trying to understand, I think the steps should be as following 

- Getting layer names from AutoCAD and store as a list.

- Iterate through the AutoCAD layers to do the following:

• Start of Function
• set the currently selected layer to active.
• select all polylines on the current layer.
• select first item and get its elevation = x.
• create hatch from the selected polylines.
• Change the created hatch elevation to = x.
•  End of Function

[Anonymous]

[Anonymous]

Could someone help me with the issue?

[Anonymous]

Good day. Sorry, can you help me select an existing table in autocad via Dynamo?

[Anonymous]

to select the table manually or programmatically?

[Anonymous]

programmatically , so that you can then enter any data in a table cell

[Anonymous]

[Anonymous]

not work...I'm probably doing something wrong

[Anonymous]

I want to add data to this table, to this cell. The table was created earlier