Hi neo, I'd like to add some of those kinds of deformation tools in the future, but it will probably be a while before they happen.

Unfortunately it tends to be a difficult area of work to deform a solid and keep joined edges to stay together instead of opening up gaps.

- Michael

Hi Michael I totally understand is difficult area of work but I think with tools like that MoI could really bypass the limitations modelers have in some Nurbs environments...
Also if you don't mind me asking when you say (I'd like to add some of those kinds of deformation tools) do you mean the Bend, Twist or the Lattice Rig. Just to get an idea of what it may be possible...
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While I was experimenting I stumble upon a bug, I think.

Hi neo,

> Hi Michael I totally understand is difficult area of work but
> I think with tools like that MoI could really bypass the
> limitations modelers have in some Nurbs environments...

Yes, I definitely agree that it would be a great thing to have, no doubt about that.

But things that are difficult take a lot of time to make happen.

I wish that just because it would be good to have it, that it would also make it easier for it to happen... But unfortunately that's just not the way things work. Difficult things remain difficult even if they are desirable.


> Also if you don't mind me asking when you say (I'd like to add
> some of those kinds of deformation tools) do you mean the Bend,
> Twist or the Lattice Rig.

I mean all of them would be good to have.

But they are also all related to the same difficult area of deforming a solid while keeping it "watertight" at trimmed edges. So they will all also probably take quite a while before they will show up in MoI. It is hard to guess at a time frame.


> While I was experimenting I stumble upon a bug, I think.

Yeah it looks like a bug where those small "seam" edges are not being handled right. I'll see if I can find out what is happening there.

- Michael

Hi neo, yeah that offset problem is definitely a bug.

Unfortunately it does not look like an easy one to fix, it will probably need to wait until the authors of the geometry library that I use are able to improve it. That may take a while.

In the meantime as workarounds you can either offset the original surface before trimming it, or you can split the surface into 2 pieces, and then each individual piece is able to be offset and then joined afterwards.

I've attached the split up version which you can use to finish the part.

- Michael

Hi Neo,

I have done this in T-Splines for Rhino:

>>>Unfortunately it does not look like an easy one to fix, it will probably need to wait until the authors of the geometry library that I use are able to improve it. That may take a while.

Is a pity really an old product (Solid++) to carry Bugs like that...Perhaps on of the reasons why their main client VectorWorks moved to Parasolid. I hope they sort it out soon.

Paolo all the wishes above are supported in most Nurbs software, also Rhino has most of them, so no need of T-Splines for something like That.