How to activate openCamLib after compiling it

[adamLange]

Hello,

After trying to use the surfacing operations in the Path module I learned that openCamLib is required. I cloned the repository: https://github.com/aewallin/opencamlib, built the openCamLibs as according to the README, except I didn't do the install step. If possible, I'd like to keep the library in a unprivileged directory. I expect that FreeCAD is expecting the openCamLib to be in /usr/lib or some standard place.

I tried:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$MY_INSTALLATION_DIRECTORY
before starting FreeCAD and I still get this message in the report view:
This operation requires OpenCamLib to be installed.

Adam

OS: Ubuntu 14.04.5 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.9453 (Git)
Build type: Unknown
Branch: (detached from 0.16_pre)
Hash: b16fbcd4eeb9a5f9195c500e2693cba25a7916d2
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.7.1.oce-0.16

[adamLange]

I think I'm getting closer to the answer. I need to make sure the 'ocl' python module can be imported. This is the code that is generating the error:

Mod/Path/PathScripts/PathSurface.py

Code: Select all

    if obj.Algorithm in ['OCL Dropcutter', 'OCL Waterline']:
            try:
                import ocl
            except:
                FreeCAD.Console.PrintError(translate(
                    "PathSurface", "This operation requires OpenCamLib to be installed.\n"))
                return

[adamLange]

sudo make install makes quick work of this.

Problem solved

[sgrogan]

I think adding the path to lib would work if you didn't want to install
In the python console

Code: Select all

import sys
sys.path.append("...")

You would need to do it after every restart. or start FreeCAD with the -P switch and add the path.
Oh, or put the library in your macros folder, it's already in sys.path.

[adamLange]

I will keep those in mind. Thanks sgrogan!

[luispa]

Hi,
I know this is an old thread. I'm having the same issue, I compiled opencamlib and did a make install, this is the output:

Code: Select all

Install the project...
-- Install configuration: ""
-- Installing: /usr/lib64/python2.7/site-packages/ocl.so
-- Up-to-date: /usr/lib/python2.7/site-packages
-- Up-to-date: /usr/lib/python2.7/site-packages/pyocl.py
-- Up-to-date: /usr/lib/python2.7/site-packages/camvtk.py
-- Up-to-date: /usr/lib/python2.7/site-packages/procmemory.py
-- Up-to-date: /usr/lib/python2.7/site-packages/STLTools.py
-- Up-to-date: /usr/lib/opencamlib/libocl.so.11.10.73
-- Up-to-date: /usr/lib/opencamlib/libocl.so
-- Up-to-date: /usr/include/opencamlib/arc.hpp
-- Up-to-date: /usr/include/opencamlib/bbox.hpp
-- Up-to-date: /usr/include/opencamlib/ccpoint.hpp
-- Up-to-date: /usr/include/opencamlib/clpoint.hpp
-- Up-to-date: /usr/include/opencamlib/line.hpp
-- Up-to-date: /usr/include/opencamlib/path.hpp
-- Up-to-date: /usr/include/opencamlib/stlreader.hpp
-- Up-to-date: /usr/include/opencamlib/stlsurf.hpp
-- Up-to-date: /usr/include/opencamlib/triangle.hpp
-- Up-to-date: /usr/include/opencamlib/point.hpp
-- Up-to-date: /usr/include/opencamlib/ballcutter.hpp
-- Up-to-date: /usr/include/opencamlib/bullcutter.hpp
-- Up-to-date: /usr/include/opencamlib/compositecutter.hpp
-- Up-to-date: /usr/include/opencamlib/conecutter.hpp
-- Up-to-date: /usr/include/opencamlib/cylcutter.hpp
-- Up-to-date: /usr/include/opencamlib/ellipseposition.hpp
-- Up-to-date: /usr/include/opencamlib/millingcutter.hpp
-- Up-to-date: /usr/include/opencamlib/ellipse.hpp
-- Up-to-date: /usr/include/opencamlib/adaptivepathdropcutter.hpp
-- Up-to-date: /usr/include/opencamlib/pathdropcutter.hpp
-- Up-to-date: /usr/include/opencamlib/batchdropcutter.hpp
-- Up-to-date: /usr/include/opencamlib/pointdropcutter.hpp
-- Up-to-date: /usr/include/opencamlib/brent_zero.hpp
-- Up-to-date: /usr/include/opencamlib/kdnode.hpp
-- Up-to-date: /usr/include/opencamlib/kdtree.hpp
-- Up-to-date: /usr/include/opencamlib/numeric.hpp
-- Up-to-date: /usr/include/opencamlib/lineclfilter.hpp
-- Up-to-date: /usr/include/opencamlib/clfilter.hpp
-- Up-to-date: /usr/include/opencamlib/halfedgediagram.hpp
-- Up-to-date: /usr/include/opencamlib/operation.hpp
-- Up-to-date: /usr/include/opencamlib/batchpushcutter.hpp
-- Up-to-date: /usr/include/opencamlib/fiberpushcutter.hpp
-- Up-to-date: /usr/include/opencamlib/fiber.hpp
-- Up-to-date: /usr/include/opencamlib/interval.hpp
-- Up-to-date: /usr/include/opencamlib/waterline.hpp
-- Up-to-date: /usr/include/opencamlib/adaptivewaterline.hpp
-- Up-to-date: /usr/include/opencamlib/weave.hpp
-- Up-to-date: /usr/include/opencamlib/simple_weave.hpp
-- Up-to-date: /usr/include/opencamlib/smart_weave.hpp
-- Up-to-date: /usr/include/opencamlib/weave_typedef.hpp
-- Up-to-date: /usr/include/opencamlib/tsp.hpp
-- Installing: /usr/include/opencamlib/version_string.hpp

However FreeCAD doesn't find Opencamlib:

Code: Select all

FreeCAD 0.17, Libs: 0.17R12435 (Git)
© Juergen Riegel, Werner Mayer, Yorik van Havre 2001-2017
  #####                 ####  ###   ####  
  #                    #      # #   #   # 
  #     ##  #### ####  #     #   #  #   # 
  ####  # # #  # #  #  #     #####  #   # 
  #     #   #### ####  #    #     # #   # 
  #     #   #    #     #    #     # #   #  ##  ##  ##
  #     #   #### ####   ### #     # ####   ##  ##  ##

Path workbench activated
Surfacing Select Mode
base object: Clone
This operation requires OpenCamLib to be installed.
Free Select

Where should be Opencamlib installed in order to be usable by Freecad?

Thank you very much in advance.

[chrisb]

- Please verify if the files are in fact to be found under /usr/local/lib, especially the *.so files.
- verify if /usr/local/lib is contained in /etc/ld.so.conf.d/libc.conf
- run ldconfig and try
- run ldconfig /usr/local/lib and try.

[luispa]

Thank you for your reply. Files were installed in /usr/lib.

[luispa]

- Please verify if the files are in fact to be found under /usr/local/lib, especially the *.so files.
- verify if /usr/local/lib is contained in /etc/ld.so.conf.d/libc.conf
- run ldconfig and try
- run ldconfig /usr/local/lib and try.

I did it but I had no success.

[chrisb]

I did it but I had no success.

Today I wanterd to get ocl running again and cannot find it anymore in Path WB. Did I miss the removal or is it something with my eyes?

OS: Ubuntu 14.04.5 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.12772 (Git)
Build type: None
Branch: master
Hash: c8c9b76f43d2c78c4afb65b756f3f07d626aac85
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.1.0
Locale: English/UnitedStates (en_US)