[...] Dear abdullah , I do not know FreeCAD very much, nor this community. The little interaction we had showed me what a great human being you are. Thank you very much for your patience with me... I know it is not easy! :roll: I wish you all the best and hope we can interact again in the near futu...

A perturbation of about 1e-10 should be sufficient. Random perturbation: https://github.com/andre-caldas/FreeCAD/blob/d772703400396f7e65b4b348fd67e1420c36d454/src/Mod/NamedSketcher/App/gcs_solver/parameters/ParameterShaker.h#L54 I don't see a good reason for such a small perturbation. If this is no...

I suppose it is this one: https://forum.freecad.org/viewtopic.php?t=78703 I've seen this thread, but I didn't find anything about testing mentioned by abdullah in it. :oops: Well, you have to ask abdullah, himself. But what I understood was that: 1. He suggested a "quick" approach. (quoti...

_Nemo wrote: ↑Fri Dec 01, 2023 4:17 am

andrecaldas wrote: ↑Thu Nov 30, 2023 1:29 pm I am watching that thread.

Hello!
Can you provide me with a link to the thread you are talking about?

I suppose it is this one:
viewtopic.php?t=78703

When we create a new document, there is this interesting piece of code: https://github.com/FreeCAD/FreeCAD/blob/391d08e6d54b37e1d6e03bb354b747ba72082ce0/src/App/Application.cpp#L507 // make sure that the active document is set in case no GUI is up { Base::PyGILStateLocker lock; Py::Object active(_pA...

Consider std::optional I made a version of std::shared_ptr that DOES throw when you try to reference an invalid pointer. https://github.com/andre-caldas/FreeCAD/blob/TechDraw_MultiThreaded/src/Base/Threads/ThrowingSharedPtr.h https://github.com/andre-caldas/FreeCAD/blob/TechDraw_MultiThreaded/src/B...

I do not see the relation between disturbing and changing algorithm for solving. Meaning that any solving algorithm could be applied to the undisturbed matrix, and disturbing it does not change the fact that one can use any solving algorithm. It is not related to "disturbing". It is relat...

The first question to answer is where the noise should be inserted and which effect it may have (also taking into account its magnitude and the pivoting threshold). As you said... it makes not sense to disturb the matrix. The parameters must be disturbed. It is important to notice that it might be ...

Consider std::optional Using std::optional class as well as a std::shared_ptr would solve the problem if "operator*" and "operator->" were not declared noexcept. With std::optional, the programmer cannot "try" to access a resource that is actually invalid: *resource or...

In FreeCAD there are many places where we have methods that return nullptr and at the same time, those methods are used without the "proper checking". Of course, sometimes you can assume things. But when the logic is too complex, this is not a good practice in my opinion. For example, (as ...