sorry, can't find it anymore. IO had i local on my machine, but seems I deleted the paper collection I had

Just a general question about the naming: Is this occt sheme of naming a good idea? it seems extremely un-freecad-like. It is already pretty bad for the "BRepOffsetAPI_" things already exposed: it is completely unintuitive in the freecad environment to use occt prefixes. I'm all for exposing more fu...

Nice progress! It seems there is an error in the implementation. double dL = err - 0.5*(fx + Jx*h_dl).squaredNorm(); double dF = err - err_new; double rho = dL/dF; Hm, back in the days when I implemented dogleg and LM solvers I closely followed a paper (or excerpt of a bock, not sure anymore). I wil...

to my (little) knowledge this makes sense for certain types of "passung", I think press fit in english. E.g. in german norms the 10p6 press fit: You have a rod and a hole with 10mm diameter each. To assure a press fit the rod must always have a bigger diameter >10mm, the hole always a smaller one <1...

nice progress! I really looking forward for this and hope you succeed in the improvements!

You have multiple options, dependend if it only needs to serve as group or if it should be a special object (e.g. Part::Feature) 1. Make a simple group with custom icon import FreeCAD class VPGroup: def __init__(self, obj): obj.Proxy = self def getIcon(self): '''Return the icon in XPM format which w...

You can use pythons intrinsic setattr and getattr methods:

Back then when I tried to write a 3d solver for assemblies I failed for that very reason: standard numeric solvers are unable to cope with the fact that rotational and transitional degrees of freedom have different sensitivities, a unit change in the parameter leads to to massively different changes...

One remark: Your proposal currently use duck typing to check if a object is a Part or a group, meaning you check if it has Group property and Placement. You could also use a different way. In FreeCAD different kinds of objects can be a "Group" or a Part like object, called GeoFeatureGroup. To check ...

The reason for the binary format is space efficiency and read write times, which are way faster for binary