FreeCAD .FCStd importer for Blender 2.80

[drmacro]

https://www.blender.org/download/releases/2-83/

[s-light]

i currently use:

blender

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$ ~/mydata/tools/blender/blender-2.93.1-linux-x64/blender --version
Blender 2.93.1
        build date: 2021-06-22
        build time: 23:38:50
        build commit date: 2021-06-22
        build commit time: 05:57
        build hash: 1b8d33b18c2f
        build platform: Linux
        build type: release
        build c flags:  -Wall -Wcast-align -Werror=implicit-function-declaration -Werror=return-type -Werror=vla -Wstrict-prototypes -Wmissing-prototypes -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wlogical-op -Wundef -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Wformat-signedness -Wrestrict -Wnonnull -Wabsolute-value -Wuninitialized -Wredundant-decls -Wshadow -Wno-error=unused-but-set-variable -Wimplicit-fallthrough=5  -fuse-ld=gold -std=gnu11 -msse -pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off -msse2 -D_GLIBCXX_USE_CXX11_ABI=0  
        build c++ flags:  -Wuninitialized -Wredundant-decls -Wall -Wno-invalid-offsetof -Wno-sign-compare -Wlogical-op -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Werror=return-type -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wundef -Wformat-signedness -Wrestrict -Wno-suggest-override -Wuninitialized -Wundef -Wmissing-declarations -Wimplicit-fallthrough=5  -fuse-ld=gold -std=c++17 -msse -pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off -msse2 -D_GLIBCXX_USE_CXX11_ABI=0  
        build link flags:  -Wl,--version-script='/home/blender/git/blender-v293/blender.git/source/creator/blender.map'
        build system: CMake
        
-----------
blender console window:
#~ PYTHON INTERACTIVE CONSOLE 3.9.2 (default, Feb 25 2021, 12:19:39)  [GCC 9.3.1 20200408 (Red Hat 9.3.1-2)]
#~ 
#~ Builtin Modules:       bpy, bpy.data, bpy.ops, bpy.props, bpy.types, bpy.context, bpy.utils, bgl, blf, mathutils
#~ Convenience Imports:   from mathutils import *; from math import *
#~ Convenience Variables: C = bpy.context, D = bpy.data
#~ 

FreeCAD

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OS: Ubuntu 20.04.3 LTS (KDE/plasma)
Word size of FreeCAD: 64-bit
Version: 0.20.
Build type: Release
Branch: unknown
Hash: 582c26ea8b5f9d85957a6cb1bf798839fa2ce94c
Python version: 3.8.10
Qt version: 5.12.8
Coin version: 4.0.0
OCC version: 7.5.2
Locale: English/United States (en_US)

system python

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$ python3 --version
Python 3.8.10

and the paths in blender addon-preferences:

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path to FreeCAD lib: /usr/lib/freecad-daily-python3/lib/FreeCAD.so
path to system python modules: /usr/lib/python3/dist-packages/

and as fare as i can tel it works

[swathi]

Actually I surprised why blender and freecad never match in python. I am on windows 10 and never able to export or import

[drmacro]

I know this is a necro bump...

Just curious as to the status of this.

Not much activity on the github for it.

Was the Python mismatch issue ever resolver for new Blender versions?

[Kunda1]

Hey yorik, maybe this could also be a GSoC project?!

[yorik]

it still works fine, i use it all the time, but the python version issue, i'm afraid it's unsolvable...
you cannot import a python module that was compiled with another python version. that's how python works.

the only way to work around this would be to make the two processes independant, to separate them completely and communicate through some sort of socket.. bu. that would be so overkill and bring so many other issues

it's mostly a packaging issue.. we shoud have more packages available of both apps with different python versions. there is the additional difficulty that blender packages python entirely and doesn't rely on the system one. note that for ex if you use a linux distro that has both apps, and use distro-provided packages, you won't have problems.

about a gsoc, why not, but i don't see a possible solution here...

[s-light]

I just tried the current blender official `3.1.0` and FreeCAD release and a (older) daily:


Free-CAD daily 0.20

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OS: Ubuntu 21.04 (KDE/plasma)
Word size of FreeCAD: 64-bit
Version: 0.20.
Build type: Release
Branch: unknown
Hash: 4acef3f14fe694f28f7935108d36341b8df83a39
Python version: 3.9.5
Qt version: 5.15.2
Coin version: 4.0.0
OCC version: 7.5.2
Locale: English/United States (en_US)

build in python console:
Python 3.9.5 (default, Nov 18 2021, 16:00:48) 
[GCC 10.3.0] on linux
>>> App.Version()[4]
'2022/01/26 04:18:00'

Free-CAD 0.19

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OS: Ubuntu 21.04 (KDE/plasma)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.
Build type: Release
Branch: unknown
Hash: 0d9536ed3e8c7f40197b5606e1b7873625e1d6fe
Python version: 3.9.5
Qt version: 5.15.2
Coin version: 4.0.0
OCC version: 7.5.2
Locale: English/United States (en_US)


# build in python console:
Python 3.9.5 (default, Nov 18 2021, 16:00:48) 
[GCC 10.3.0] on linux
Type 'help', 'copyright', 'credits' or 'license' for more information.
>>> App.Version()[4]
'2021/07/21 08:10:00'

Blender

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Blender:
====================================

version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash: c77597cd0e15, type: release
build date: 2022-03-09, 00:34:48
platform: 'Linux-5.11.0-50-generic-x86_64-with-glibc2.33'


Python:
====================================

version: 3.10.2 (main, Jan 27 2022, 14:00:16) [GCC 9.3.1 20200408 (Red Hat 9.3.1-2)]

and both freecad versions are working
i can only test on linux - so do not now if the situation on windows or macos is different...

@yorik great it is working for you

if anyone needs a feature that is not working please leave a issue and let me know - or in best case write a pull request
as i only sometimes use this i only will do new things as i need them... time is flying... and so much things i like to do
if there is a actual need i try my best to help

some of the open issues would need a good rethinking what is really helpful / needed...
some only need some testcases or simple isolation of the phenomena so its easier to fix..
@drmacro feel free suport it!
i just went through the issues and tried to add the correct labels...

i think i have to clean up there a bit - and again - help is welcome

sunny greetings
stefan

[poddat'sky]

I have are problem:

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import FreeCAD
Traceback (most recent call last):
  File "<blender_console>", line 1, in <module>
ImportError: /opt/blender/3.3/scripts/addons/././libboost_regex.so.1.74.0: undefined symbol: _ZN6icu_706LocaleC1ERKS0_

OS

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OS: Gentoo Base System release 2.7 x86_64 
 Kernel: 4.19.94 
 Shell: bash 5.0.18 
 Resolution: 1680x1050 
 WM: IceWM 3.1.0 (linux-gnu/x86_64) 
 WM Theme: erizo 
 Theme: Adwaita-dark [GTK2/3] 
 Icons: ePapirus [GTK2/3] 
 Terminal: tilda 
 CPU: Intel i3 540 (4) @ 3.0GHz [45.0°on] 
 GPU: AMD ATI Radeon HD 5550/5570/5630/6390/6490/7570 
 GPU: Intel Core Processor 
 Memory: 2884MiB / 3619MiB (79%) 
 GPU Driver: i915 
 CPU Usage: 8% 
 Locale: ru_RU.utf8 

blender

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blender --version
Blender 3.3.1
	build date: 2022-10-05
	build time: 00:14:35
	build commit date: 2022-10-04
	build commit time: 18:35
	build hash: b292cfe5a936
	build platform: Linux
	build type: release
	build c flags:  -Wall -Werror=implicit-function-declaration -Werror=return-type -Werror=vla -Wstrict-prototypes -Wmissing-prototypes -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wlogical-op -Wundef -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Wformat-signedness -Wrestrict -Wnonnull -Wabsolute-value -Wuninitialized -Wredundant-decls -Wshadow -Wno-error=unused-but-set-variable -Wimplicit-fallthrough=5  -std=gnu11 -msse -pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off -msse2 -D_GLIBCXX_USE_CXX11_ABI=0  
	build c++ flags:  -Wuninitialized -Wredundant-decls -Wall -Wno-invalid-offsetof -Wno-sign-compare -Wlogical-op -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Werror=return-type -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wundef -Wformat-signedness -Wrestrict -Wno-suggest-override -Wuninitialized -Wundef -Wmissing-declarations -Wimplicit-fallthrough=5  -msse -pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off -msse2 -D_GLIBCXX_USE_CXX11_ABI=0  
	build link flags:  -Wl,--version-script='/home/blender/git/blender-v330/blender.git/source/creator/symbols_unix.map'
	build system: CMake

freecad

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FreeCAD 0.20.1 Revision: 29410 (Git)

/opt/freecad/usr/bin/python 
Python 3.10.5 | packaged by conda-forge | (main, Jun 14 2022, 07:04:59) [GCC 10.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import FreeCAD
Assembly4 workbench (v0.12.4) loaded
>>> print("FreeCAD version:", FreeCAD.Version())
FreeCAD version: ['0', '20', '1', '29410 (Git)', 'Unknown', '2022/08/10 11:44:09', '(HEAD detached at 0.20.1)', 'f5d13554ecc7a456fb6e970568ae5c74ba727563']
>>> 

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path to FreeCAD lib: /opt/freecad/usr/lib/FreeCAD.so
path to system python modules: /usr/lib/python3.10/site-packages/