Search found 1626 matches

by tanderson69
Sun Oct 02, 2022 1:50 pm
Forum: Open discussion
Topic: OCCT 7.7.0 is out.
Replies: 20
Views: 7665

Re: OCCT 7.7.0 is out.

They will post in the release forum when the release is official. Within that post there will be release notes on changes.
by tanderson69
Tue Sep 13, 2022 2:15 pm
Forum: Open discussion
Topic: Why does this fusion fail?
Replies: 5
Views: 705

Re: Why does this fusion fail?

... The individual parts look fine (to me), but the fusion isn't giving the expected results. ... That is a strange one. The subtraction and intersection of same arguments works as expected. I am thinking that the orientation of a solid/s is getting messed up somewhere inside the boolean algo. I au...
by tanderson69
Tue Sep 06, 2022 5:07 pm
Forum: Developers corner
Topic: FreeCAD and OCC Fillet problems (bug seems fixed in Salome but not FreeCAD)
Replies: 17
Views: 2450

Re: FreeCAD and OCC Fillet problems (bug seems fixed in Salome but not FreeCAD)

I took the offending model geometry extracted the faces and sewed together. The 1 minor change I made was rotating the cylindrical surface to move the seam edge away from complicated blend area. After that I could get blend to work. It appears the seam edge in the salome picture is away from complic...
by tanderson69
Tue Sep 06, 2022 3:51 pm
Forum: Developers corner
Topic: FreeCAD and OCC Fillet problems (bug seems fixed in Salome but not FreeCAD)
Replies: 17
Views: 2450

Re: FreeCAD and OCC Fillet problems (bug seems fixed in Salome but not FreeCAD)

With FreeCAD for a few days, I have been working on how fillet and similar commands produce mistakes... Judging by your picture, you are not trying to blend the same BRep model. In that case I am guessing you are modeling the solid from scratch in each software. If that is true, how can you be sure...
by tanderson69
Sat Aug 27, 2022 2:21 pm
Forum: Developers corner
Topic: OCC Bugs in the Bugtracker
Replies: 149
Views: 62814

Re: OCC Bugs in the Bugtracker

Kunda1 wrote: Thu Aug 11, 2022 5:40 pm They have a CLA license that one needs to sign: https://dev.opencascade.org/get_involved
Just for clarity: You don't need to sign the CLA, if all you are doing is participating in the bug tracker. The only time you need to sign the CLA is if you are actually submitting code.
by tanderson69
Sun Jul 24, 2022 5:41 pm
Forum: Toponaming forum
Topic: Seems problem (pb!) with boolean fonctions integrated in PartDesign LinkBranch
Replies: 24
Views: 6654

Re: Seems problem (pb!) with boolean fonctions integrated in PartDesign LinkBranch

is it even remotely feasible to crowdfund something like that? IMHO: I don't think very many people grasp the complexity and scope of this kind of work and thus it would be very hard to convince people to give money. I think it would be better to crowdfund something more general like 'open source c...
by tanderson69
Sat Jul 23, 2022 7:43 pm
Forum: Toponaming forum
Topic: Seems problem (pb!) with boolean fonctions integrated in PartDesign LinkBranch
Replies: 24
Views: 6654

Re: Seems problem (pb!) with boolean fonctions integrated in PartDesign LinkBranch

oh dear, is it normal for their code documentation to be in french? Anybody can create an issue in their tracker for this? The french comments are the least of occt's problems. ;) Anybody with an account can create an issue in their tracker. I would be really surprised if they spent anytime with it...
by tanderson69
Sat Jul 23, 2022 3:09 pm
Forum: Toponaming forum
Topic: Seems problem (pb!) with boolean fonctions integrated in PartDesign LinkBranch
Replies: 24
Views: 6654

Re: Seems problem (pb!) with boolean fonctions integrated in PartDesign LinkBranch

Not that I know of. Maybe you can look into it? Because of the discovery here, I begin to notice that occt auto generated BSpline Curves/Surfaces are generally big, commonly exceeding thousands of control points, and sometimes with degree of one (i.e. all line segments). Not sure if it's always lik...
by tanderson69
Sat Jul 16, 2022 5:07 pm
Forum: Toponaming forum
Topic: Seems problem (pb!) with boolean fonctions integrated in PartDesign LinkBranch
Replies: 24
Views: 6654

Re: Seems problem (pb!) with boolean fonctions integrated in PartDesign LinkBranch

I have simplify the project to show OCC geometry size problem. The project can be opened in upstream master. This tiny file will explode when you make a fillet for the edge shown in the picture below. The three modified faces are all around 45MiB each. We can export that fillet shape as STEP file a...
by tanderson69
Sat Jul 16, 2022 5:02 pm
Forum: Developers corner
Topic: Ticket #6488 - Cone surface returns wrong dv derivative
Replies: 13
Views: 3619

Re: Ticket #6488 - Cone surface returns wrong dv derivative

@tanderson69 Have a look at how OCC has fixed the problem. You can see the differences when computing the derivatives for DN(u, v, 1, 1). I have applied the fix to our workaround and implemented a unit test to compare the results of the cone and its conversion to a NURBS: b02705d79f Yeah I looked a...