Try playing with vector.dot(vector) this what it does def dotproduct(first, other): "dotproduct(Vector,Vector) - returns the dot product of both vectors" if isinstance(first,FreeCAD.Vector) and isinstance(other,FreeCAD.Vector): return (first.x*other.x + first.y*other.y + first.z*other.z) ...

Substract spincenter to both v1 and v2, now you have two vectors which are both starting at origin and keep original angle. So now getangle gives you a reliable value. As Kbwbe already said be careful on using methods on spincenter as most of them modify spincenter too @kbwbe, @Turro75 Guys, It loo...

@kbwbe You will probably have faster answer than I'll get by myself... I have the spinCenter point. I have 2 vectors to 2 refPoints: # Pseuto-code: spinCenter = self.spinCenter v1 = spinCenter.add(dep.refPoint) v2 = spinCenter.add(foreignDep.refPoint) How do I get the angle between the 2 vectors? a...

@kbwbe You will probably have faster answer than I'll get by myself... I have the spinCenter point. I have 2 vectors to 2 refPoints: # Pseuto-code: spinCenter = self.spinCenter v1 = spinCenter.add(dep.refPoint) v2 = spinCenter.add(foreignDep.refPoint) How do I get the angle between the 2 vectors? an...

Hmm... You're right about the 1/2 and 0.5 in the multiply. But it's very strange that the constants are not converted to float automatically... The "v2 = v0.add(Base.Vector(2,2,2))" resulted in "v2: Vector (0.0, 0.0, 0.0)" after all. If I change it to (2.0,2.0,2.0) it produces e...

Now I'm really confused since even that simple code doesn't work :shock: v0 = Base.Vector(0,0,0) v1 = v0.add(Base.Vector(10,10,10)) v2 = v0.add(Base.Vector(2,2,2)) a = v2 a.multiply(1/2) FreeCAD.Console.PrintMessage("v0: {}\n".format(v0)) FreeCAD.Console.PrintMessage("v1: {}\n"....

Branch "solver-stabilization" has been updated again. Rigid.calcSpinCenter() is fixed. Also some improvements for project-folder stuff are done. So project folder option is usable for different operation systems. Hi, Didn't have much time this weekend, but I'm playing with the code a bit ...

Branch "solver-stabilization" has been updated again. Rigid.calcSpinCenter() is fixed. Also some improvements for project-folder stuff are done. So project folder option is usable for different operation systems. Hi, Didn't have much time this weekend, but I'm playing with the code a bit ...

@kbwbe I'm playing with the rotations to see how it works and it looks like the spinCenter calculations doesn't work... What's wrong with that code? def calcSpinCenter(self): newSpinCenter = Base.Vector(0,0,0) countRefPoints = 0 for dep in self.dependencies: if dep.refPoint != None: newSpinCenter.ad...

Are you sure you saw the duplicates on latest version? I've added the list(set()) to getCandidates in the last change you took from me... Yes. But only 1 duplicate in 1 testcase. It was the motor of the pump. Therefore i could not solve the pump assembly. After my changes, it worked. !? Ohh... I se...