19c840e1ab
======================================================== This is an advanced setting just for allowing increased choices to power users that have problems with a given sketch and want to test different flavours of DogLeg algorithm. This commit does not change the default behaviour of FreeCAD. It is only intended to give more options to power users. The advanced solver configuration is extended to support three different Gauss-newton steps for DogLeg: FullPivLU => h_gn = Jx.fullPivLu().solve(-fx); LeastNormFullPivLU => h_gn = Jx.adjoint()*(Jx*Jx.adjoint()).fullPivLu().solve(-fx); LeastNormLdlt => h_gn = Jx.adjoint()*(Jx*Jx.adjoint()).ldlt().solve(-fx); This setting is applied only to DogLeg. It is applied to DogLeg as normal or redundant solver, if DogLeg is the selected solver. Selecting a solver different from DogLeg for both normal and redundant disables the setting. We have been told: https://forum.kde.org/viewtopic.php?f=74&t=129439#p346104 that our default Gauss-Newton step in DogLeg may not be adequate in general (we generally deal with underconstraint systems unless we have a fully constraint sketch, and even then it is many times overconstraint at least for redundant solving). We have been told that maybe these LeastNorm options are more suitable for us (performance set aside). This enables you as power user to test if it works fine with FreeCAD. |
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| cMake | ||
| data | ||
| package | ||
| src | ||
| .arcconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .log_errors | ||
| .travis.yml | ||
| BuildAll.bat | ||
| BuildRelease.ini | ||
| BuildRelease.py | ||
| ChangeLog.txt | ||
| CMakeLists.txt | ||
| config.h.cmake | ||
| copying.lib | ||
| README.md | ||
FreeCAD
FreeCAD is a general purpose feature-based, parametric 3D modeler for CAD, MCAD, CAx, CAE and PLM, aimed directly at mechanical engineering and product design but also fits a wider range of uses in engineering, such as architecture or other engineering specialties. It is 100% Open Source (LGPL2+ license) and extremely modular, allowing for very advanced extension and customization.
FreeCAD is based on OpenCasCade, a powerful geometry kernel, features an Open Inventor-compliant 3D scene representation model provided by the Coin 3D library, and a broad Python API. The interface is built with Qt. FreeCAD runs exactly the same way on Windows, Mac OSX, BSD and Linux platforms.
Home page: http://www.freecadweb.org
Documentation wiki: http://www.freecadweb.org/wiki/
Forum: http://forum.freecadweb.org/
Bug tracker: http://www.freecadweb.org/tracker/
Git repository: https://github.com/FreeCAD/FreeCAD
Installing
Precompiled (installable) packages are usually available to you from several sources and are described on the FreeCAD download page:
http://www.freecadweb.org/wiki/index.php?title=Download
Compiling
Compiling FreeCAD requires to install several libraries and their development files such as OpenCasCADe, Coin and Qt, listed in the pages below. Once this is done, FreeCAD can be simply compiled with cMake. On windows, these libraries are bundled and offered by the FreeCAD team in a convenience package, on Linux they are usually found in your distribution's repositories and on Mac OSX and other platforms you will usually need to compile them yourself.
The pages below contain up-to-date build instructions:
For Linux: http://www.freecadweb.org/wiki/?title=CompileOnUnix
For Windows: http://www.freecadweb.org/wiki/?title=CompileOnWindows
For Mac OSX: http://www.freecadweb.org/wiki/?title=CompileOnMac
For Cygwin: http://www.freecadweb.org/wiki/?title=CompileOnCygwin
For MinGW: http://www.freecadweb.org/wiki/?title=CompileOnMinGW
Usage & Getting help
The FreeCAD documentation wiki contains a lot of documentation on general FreeCAD usage, python scripting, and development. The following pages might help you to get started:
Getting started: http://www.freecadweb.org/wiki/?title=Getting_started
Features list: http://www.freecadweb.org/wiki/?title=Feature_list
Frequent questions: http://www.freecadweb.org/wiki/?title=FAQ
Workbenches: http://www.freecadweb.org/wiki/?title=Workbench_Concept
Scripting: http://www.freecadweb.org/wiki/?title=Power_users_hub
Development: http://www.freecadweb.org/wiki/?title=Developer_hub
The FreeCAD forum at http://forum.freecadweb.org is also a great place to find help and solve specific problems that you might encounter when learning to use FreeCAD.