(solved) Open / import all files in a folder and sub-folders at once (fcstd stp stl iges dae obj ifc)?

[thomas-neemann]

does anyone have an idea how a macro could look like that all files in a folder and sub-folders open / import at once (fcstd stp stl iges dae obj ifc)?

that would be very useful for assemblies (main assembly with subassemblies)


Greetings Thomas

[Syres]

I took the feedback from https://forum.freecadweb.org/viewtopic.php?t=3332 and updated it be Python3 aware just for Step files in one folder:

Code: Select all

import FreeCAD,Part,os
folder = "/home/john/Data/FreeCAD"

# first we check for filenames that contain .stp or .step
stepfiles = []
for f in os.listdir(folder):
    if (".STP" in f.upper()) or (".STEP" in f.upper()):
         stepfiles.append(folder+os.sep+f)

if not stepfiles:
    print ("No step files found in the given folder")
    os.exit()

# we create a doc, read all step files and make a freecad object from each of them
doc = FreeCAD.newDocument()
for f in stepfiles:
    s = Part.read(f)
    doc.addObject("Part::Feature","Part").Shape = s

# always recompute after changing the doc
doc.recompute()
Gui.SendMsgToActiveView("ViewFit")

I'm sure you can take it from there to expand for the other formats and you just need to Google for Python recursive folder search.

OS: Linux Mint 19.3 (X-Cinnamon/cinnamon)
Word size of FreeCAD: 64-bit
Version: 0.20.25773 (Git)
Build type: Release
Branch: master
Hash: b8a4d1e07e76dd313a8f81a51b567567acdd15f0
Python version: 3.6.9
Qt version: 5.9.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedKingdom (en_GB)

[thomas-neemann]

Thank you for your prompt reply. that is very helpful. I've already tried recursion in a shell script and built it myself as a list of all file names that were processed. i have no idea about python yet. how does such a recursion look like?

[Syres]

Here's a recursive import of just STEP files:

Code: Select all

import FreeCAD,Part,os
folder = "/home/john/Data/FreeCAD"
# Recursive search for STEP files
result = [os.path.join(dp, f) for dp, dn, filenames in os.walk(folder) for f in filenames if os.path.splitext(f.upper())[1] == '.STEP']

if not result:
    print ("No step files found in the given folder")
    os.exit()

# we create a doc, read all step files and make a freecad object from each of them
doc = FreeCAD.newDocument()
for f in result:
    s = Part.read(f)
    doc.addObject("Part::Feature","Part").Shape = s

# always recompute after changing the doc
doc.recompute()
Gui.SendMsgToActiveView("ViewFit")

[thomas-neemann]

1000 thanks that is a great help, wonderful

[thomas-neemann]

It is easier than I thought, only fcstd files need to be opened / merged, because positioned step iges dae etc. objects can be saved as fcstd without any additional effort.

[heda]

the python "battery included" glob makes the whole thing an easy one-liner to recurse a file-pattern.

[thomas-neemann]

thank you, I like python very much right away

[thomas-neemann]

because merge does not create any nesting in the parts tree, it is sufficient to load only one directory. This directory, which is the current assembly directory, can contain positioned individual parts and also positioned assemblies as an FCSTD file. it can be former step iges or mesh files that are positioned as fcstd and saved. I will shoot a video to explain it and link it here.

here the macro

fc-folder-assembly

Code: Select all

#fc-folder-assembly
import FreeCAD,Part,os
folder = "/home/pc50/Data/FreeCAD"

for f in os.listdir(folder):
   if (".FCSTD" in f.upper()):
         Gui.ActiveDocument.mergeProject(folder+os.sep+f)

[thomas-neemann]

here is the video, the more parts there are, the more meaningful it becomes. this means that you can work in assemblies of any size. very fast with all formats


https://www.youtube.com/watch?v=HLIMqS8b-Uo

phpBB [video]