Extract surfaces solids

Civil 3D
1

Hi
The below script doesn’t export the surfaces solids, Do you know what is missing ? it returns empty lists

ExtractSurfacesSolids.dyn (12.4 KB)

Regards

2

hi
try

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3

Hi
What I want to achieve is extracting as many surfaces as available within the model to separated files ( file for each surface solids) … is that possible ?

4

Oh really
I have not tried it before
May this link help you

or using civil api
https://help.autodesk.com/view/CIV3D/2022/ENU/?guid=a928536c-2ef0-ca28-1903-b00359295053

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5

if this task shall be done by a python coding, what does this node do then ?

6

I think I haven’t tried it
You need this link after that with some changes
To export to another drawing

7

hi
try

import clr
import System

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 *
from Autodesk.Civil.DatabaseServices.Styles import *

adoc = Application.DocumentManager.MdiActiveDocument
civdoc = CivilApplication.ActiveDocument
 
SS = IN[0]
LL = IN[1]
LLYY = IN[2]

PATHTH = IN[3]

def create_catchment_label(SS,LL,LLYY,PATHTH):

	global adoc
	global civdoc
	
	II = -1
	
	output = []
	
	if not isinstance(SS, list):
		SS = [SS]
		
	if not isinstance(PATHTH, list):
		PATHTH = [PATHTH]


	with adoc.LockDocument():
	    with adoc.Database as db:
	        with db.TransactionManager.StartTransaction() as t:
				for c in SS:
					SurfaceId = c.InternalObjectId
					II +=1
					PATHTHi = PATHTH[II]
					obj = t.GetObject(SurfaceId, OpenMode.ForRead)
					if isinstance(obj, Surface):
						
						SolidQ = obj.CreateSolidsAtDepthToFile(LL,LLYY,1,PATHTHi )

						output.append([SolidQ,PATHTHi])  
				t.Commit()
	return output

OUT =create_catchment_label(IN[0],IN[1],IN[2],IN[3])

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8

It worked perfectly with simple surfaces but it returns this warning for the huge ones:

(Warning: IronPythonEvaluator.EvaluateIronPythonScript operation failed.
Traceback (most recent call last):
File “”, line 72, in
File “”, line 65, in Create_Catchment_Label
SystemError: Surface has too many triangles, no more than 100000 triangles allowed)

9

try
using Manual

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10

I already use Manual

11

Oh really
I don’t know the problem
Can you attach an example drawing?
for experimentation

12

I uploaded it here due to big size

https://wetransfer.com/downloads/94c810f71ce80e34543e2b6aa1e48bd820220111093656/2cabad91da1a27f23ec8eac46f086a0c20220111093730/4689b8

13

Tried it through the program from the same thing
It does not work because the surface is too large

Therefore, it will not work with programming

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14

Work with me when the size of the surface is small by setting borders

You can divide the surface into parts and then group them together in a plate

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can you use TinSurfaceExtensions.Crop

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15

it works from the civil 3d built in command but takes a bit long time

let’s investigate if there is a coding line can overcome this

16

I got this issue exactly and used what @hosneyalaa suggested (cropping the surface). My workflow :

  • Crop the terrain surface temporarily
  • Use that to extract the solids
  • Delete the cropped surface so it will be completely transparent for the user

Normally it is the terrain surface that is too big. Personally I used the corridor surface perimeter with a small offset as the cropping object. It worked nicely