Our topic is testing of:
http://eigen.tuxfamily.org/dox/group__S ... odule.html

triplus, the discussion about opencl is like considering buying a ferrari because your bicycle is too slow for you. There are intermediate steps between Eigen::FullPivHouseholderQR and an OpenCL algorithm. Like in the case of Ferrari its all about the cost, you get nothing for free. In practice you ...

both last two suggestions are already possible using construction lines. Construction lines do not make the sketch any heavier, feel free to use them.

shoogen wrote:OCC automatically converts every arc to CCW by inverting the axis. We simply need to get this information back.

I do not say that one has to handle arcs himself, if there is already an off-the-shelf solution. But if one needs to handle arcs himself, then there is only one robust way.

I always see programmers struggling with arcs. Arcs are easy, just follow the rule below: Instead of trying to cover any possible orientation of an arc, just rotate the arc to a well defined and easy to handle orientation. Then solve the problem you want to solve and then rotate the results back to ...

@wmayer, no the self-diagnostics of the sketcher are slow but quite reliable, there are no parallel constraints, they are equal length constraints.

this in an acknowledged issue there is a bug report about sketches with multiple solutions. Not so easy to solve. Changing the datum value in small steps from its original value is a workaround.

the code that does the highlighting should be in SoBrapeFaceSet (and also SoBrepShape). I suggested to take a look at Part::ViewProviderExt as an example of how SoBrepFaceSet is used. Put a break point in SoBrapeFaceSet and it is easy to find out how exactly highlighting works.

what do the following functions return on your viewprovider: ?

if you use the SoFCUnifiedSelection.h model you shouldn't have to specify any highlight color or anything. I am 99% sure that SoBrepFaceSet supports this model and it should work by default.

I think I had the opposite problem when I implemented the ghost visualization of rejected pattern transformations.

As far as I remember I had to use SoIndexedFaceSet instead of SoBrepFaceSet. So you probably have to do the opposite.